SSSIHMSSri Sathya Sai Institute of Higher Medical Sciences · Whitefield, Bengaluru
Department of Cardiology

Proceedings · CME in Clinical Cardiology

SPEED 2026

Sri Sathya Sai Preparatory Course for Exam-going DM/DrNB Students · 17–18 October 2026

SPEED is the Department of Cardiology's annual clinical teaching programme for candidates preparing for the DM and DrNB cardiology examinations. It reproduces the pressure of the examination hall through a pure clinical format of case presentations, case-history analysis, imaging and haemodynamic interpretation, and echocardiographic case studies. Didactic lectures are kept to a minimum, leaving most of the time for interactive discussion with experienced teachers.

This record collects every recorded session of the 2026 programme with an abstract, the teaching points established in discussion, and an edited transcript. Each transcript timestamp opens the session video at that moment.

20recorded sessions
14.2 hof teaching
92,000words transcribed
Full video playlist ▸

Day 1 Saturday, 17-Oct-2026

01

Day 1 · 17-Oct-2026 · 08:55 hrs · 2 min

Opening Vedic Invocation

  • Vedic invocation
  • Opening ceremony
  • Durga Suktam

The programme opened with a Vedic invocation. After a salutation to the Guru, the chanters recited a hymn invoking Agni and the Goddess Durga for protection and safe passage through difficulties, followed by a Gayatri verse to the Goddess, and closed with the peace invocation.

Edited transcript 4 paragraphs · 70 words

00:00:06Speaker[Vedic chanting: opening salutation to the Guru, “Om Sri Gurubhyo Namah, Harih Om.”]

00:00:13[Vedic chanting: the Durga Suktam, beginning “Jatavedase sunavama somam”, invoking Agni and the Goddess Durga to carry the assembly safely across all difficulties, as a boat across the sea. The ASR rendering of the verses is unrecoverable and is not reproduced.]

00:01:43[Vedic chanting: the Durga Gayatri, “Katyayanaya vidmahe, Kanyakumari dhimahi, tanno Durgih prachodayat.”]

00:01:58Om Shanti, Shanti, Shantih.

02

Day 1 · 17-Oct-2026 · 08:57 hrs · 6 min

Welcome and Faculty Introduction

  • Welcome address
  • SPEED programme
  • Sathya Sai institutions
  • Clinical teaching
  • Exam preparation

A faculty member delivered the welcome address, placing SPEED in the context of the institution's free health care and education in the spirit of Bhagawan Sri Sathya Sai Baba, and noting that the day coincided with Kalaratri and Vidyarambham. The speaker described the purpose of the course as problem-oriented clinical discussion that equalises exposure across institutions, explained that the whole faculty panel would question candidates, and acknowledged the patients as the course's teachers. The session ended with the welcome of guest faculty with floral bouquets.

Teaching points

  1. Knowledge in the mind should find correct expression on the tip of the tongue; candidates must be able to substantiate their clinical findings.
  2. Exam preparation cannot be a last-day, one-day job.
  3. SPEED aims at problem-oriented discussion, so that candidates from institutions with differing clinical exposure are on an equal footing.
  4. In SPEED the whole faculty panel, not only three examiners, will question each candidate.
Edited transcript 13 paragraphs · 962 words

00:00:03Speaker… the graduate, postgraduate and PhD courses, and then there are the medical institutions, and there is a mobile hospital. So the spirit of Bhagawan Baba is being celebrated at the most auspicious time. Today we celebrate Kalaratri, the Mata form of Kalaratri, and incidentally it also happens to be the day of Vidyarambham, what we call Akshara Abhyasa in Karnataka. That is, we start learning today; we begin our initiation into education today. Coincidentally, it happened to be the 17th of October. It was not planned that way, but today is the day we all started our learning, our Vidyarambham.

00:00:43Love in Action. Essentially, the Sathya Sai way has been humanising technology for more than [unclear] years, with more than [unclear] patient-years of health care. Puttaparthi used to be described as a stone's throw away from the Stone Age. From there, where there was absolutely nothing, almost 250 kilometres away, even now the nearest speciality hospital is more than 100 kilometres away. So health care has been brought to the level of human care.

00:01:12Why did Sir envisage SPEED? It was Sir's vision. We are now in the 11th year, the 12th edition, since there were two last year. There were more than 250 registrations, and we had two SPEEDs last year. The feedback was very good. The whole idea came from when we were students; the HOD has also been an alumna here. The idea is of converting this scalar into a vector. We all know speed is a scalar, but we need direction. Direction makes it a vector, so that velocity was given by Sir, essentially in living up to what is written up there: that health care and education should be provided free, just for the asking.

00:01:52We used to have, and still have, a lot of students who come here as observers. Sir has never put it as ‘our students’ and ‘outside students’; everybody is the same. There is no faculty member here who has not been at SPEED before, so it is family for us. Many of them are one phone call away, and they agreed at the very last moment, although they all have very busy schedules. The only thing we expect is that you should not come back here next year as a student, but very much, of course, as faculty if you wish to.

00:02:21This is our every-day morning at Whitefield and Prasanthigram. I don't know of too many institutes which have this on an everyday basis. It was made an absolute rigour that this should happen every single day, and it still goes on. Every case is discussed, every patient is thrashed out, every sign is discussed. There have been days when, answering Sir, I have said ‘atrial fibrillation with a tall a wave’. I have also been there, and there has been learning out of that.

00:02:53I think it is good to go for the exams with a lot of preparation. You can't go for the exams on the last day and think it is a one-day job; it doesn't work that way. I am sure all our teachers have taught us that. About the need for SPEED, which everybody feels: there are a lot of other courses and a lot of YouTube videos, but the point was problem-oriented discussion. We were all taught by our teachers, and by everybody here, that knowledge in the mind should find the correct expression on the tip of the tongue. At that point, if you are not able to substantiate your findings or your clinical sign, it becomes difficult to go ahead.

00:03:28Exposure is not the same in all institutes, so Sir thought that there should be a homogenisation of the whole thing. All of us are equal when we pass out of MD or DNB Medicine, and we should be the same as we pass out. So knowledge should be shared on such a platform. There has been a lot of representation; in fact, a lot of institutes from the north are participating, and some of those students are here today.

00:03:49This picture is put here to tell you that it is not going to be three examiners; it is going to be the whole panel asking you questions. Getting ten people to ask you questions is not very common in a lot of such programmes.

00:04:08Patients have come from across the country. Our real wealth is our faculty and our patients, and of course the whole team that works with us; that selfless work is really the wealth of this institute. But more than that, the patients, because many of them come with faith in Swami, in Baba, and they have allowed us to learn a lot from them. So I think they have been our biggest teachers also.

00:04:30So this is not just about speed; let us make it a transformation in action. I hope you really have a very good time at SPEED, because we have loved bringing it to you as much as we feel you should love learning from it. This is the basic pattern of an examination; we can discuss it later.

00:04:51We will now have our senior faculty invite our guests with a small floral bouquet. [Guest faculty are welcomed with bouquets; names omitted.]

00:05:12Thank you, sir, for being with us. Our first guest has been one of the most senior professors in the country, a former head of department, and my examiner; he gave me my DNB degree. [Introductions of the other visiting faculty, with their names and institutions, omitted.] Thank you all for joining us again.

00:05:44[A senior faculty member is welcomed; name omitted.] Thank you, ma'am. Other teachers will be joining us, and we will now have a short video about the hospital.

03

Day 1 · 17-Oct-2026 · 09:12 hrs · 1 h 11 min

Aortic Valve Disease Case Discussion

  • Aortic stenosis
  • Aortic regurgitation
  • Bicuspid aortic valve
  • Chest pain evaluation
  • JVP examination
  • Heart sounds and murmurs
  • ECG and echocardiography
  • TAVI vs surgical AVR

A DM/DrNB candidate presented a long case of a 50-year-old man with exertional chest pain, palpitations, fatigue and dyspnea, and proposed congenital bicuspid aortic valve disease with severe aortic stenosis, aortic regurgitation and mitral regurgitation. The faculty examined the history (characterisation of chest pain, nocturnal angina versus PND, the mechanisms of symptoms in AS, AR and MR, wall stress), the examination (pulse description, JVP measurement, apico-carotid delay, paradoxical splitting of S2, soft S1) and the investigations (ECG, chest X-ray, echocardiography, CT). They cautioned the candidate against committing to a bicuspid etiology when several valves are involved. The discussion closed with management (surgical aortic valve replacement versus TAVI, choice of valve, lifetime management) and advice on concise, chronological presentation.

Case
50-year-old man from West Bengal, farmer, no formal education, lower socioeconomic class; exertional chest pain 5 years, exertional palpitations 3 years, exertional fatigue 2–3 years, exertional dyspnea 1 year, nocturnal chest pain; family history of sudden death of grandfather and elder brother, each at 50 years.
Diagnosis discussed
Severe aortic stenosis with aortic regurgitation (mild to moderate on echo, per candidate) and mitral regurgitation. The candidate proposed a congenital bicuspid aortic valve; the faculty considered a rheumatic etiology possible given multivalvular involvement and advised against committing to a bicuspid etiology clinically.

Teaching points

  1. Avoid the word ‘angina’ in the chief complaint; describe it as chest pain until its character is established.
  2. Characterise chest pain by PQRST: precipitating factors, quality, relieving factors, site and temporal profile. Typical angina lasts 2–5 minutes (rarely up to 10, under 20); pain under 2 minutes is probably non-cardiac.
  3. At DM/DNB level, present the history briefly and in chronological order, as a consultant would in OPD, without going back and forth.
  4. In chronic AR the regurgitant jet lifts the anterior mitral leaflet into a semi-closed position, shielding the LA from the high LV end-diastolic pressure, so PVH and dyspnea are late features.
  5. If the pulse has premature beats, call it irregular; avoid ‘regularly irregular’ unless the pattern is defined.
  6. Assess the JVP with the patient sitting upright: if it is seen above the clavicle it is elevated. If you measure it, measure the vertical height of the column (horizontal and vertical scales, not perpendicular to the sternum); it is the same at 30, 45 or 60 degrees.
  7. To identify A2 and P2 in paradoxical splitting, inch the stethoscope towards the apex, where only A2 is heard unless there is pulmonary hypertension.
  8. Post-ectopic accentuation of a systolic murmur helps separate AS from MR, and fixed from dynamic obstruction in HCM. The longer the early diastolic murmur, the more severe the AR, except in acute AR.
  9. Deep S waves in V1–V2 favour AR over MR; in MR the S waves are truncated because of left atrial enlargement.
  10. A bicuspid aortic valve is confirmed on echo in the open (systolic) position; in the closed position a raphe can mislead. Keep the final clinical diagnosis non-specific, and base valve decisions on lifetime management and patient preference.
Edited transcript 333 paragraphs · 8,002 words

00:00:03CandidateA 50-year-old man from West Bengal, with no formal education, a farmer by occupation, belonging to the lower socioeconomic class. The informants are the patient himself and his son. He came with chief complaints of angina on exertion for 5 years, exertional palpitations for 3 years, exertional fatigue for 3 years, and dyspnea on exertion for one year. Coming to the history of presenting illness, sir…

00:00:33FacultyOne second, sorry to interrupt you. Don't use the word ‘angina’ here.

00:00:37CandidateYes, sir. Chest pain.

00:00:40FacultyYes. After that, whether it is anginal or non-anginal, cardiac or not, we will see. If you say angina, you are committing straight away. So it is better to use the words ‘chest pain’.

00:00:54So what were the chief complaints?

00:00:54CandidateChest pain for 5 years, sir; palpitations for 3 years; fatigue for 2 years; dyspnea for one year.

00:01:10FacultyOkay, go ahead.

00:01:14CandidateThe patient was apparently all right 5 years back. Then he developed chest pain, insidious in onset and progressive. Initially he was able to do all the heavy lifting activities in farming without difficulty, but it gradually progressed to the point that he could not lift that heavy equipment. Initially he was able to climb at least 3 flights of stairs without much difficulty; currently he is not able to climb even one floor without symptoms.

00:01:49The patient gives a history of visiting a local cardiologist within one year of developing these symptoms, where he was told that he needed to visit a higher centre for further management. He then visited here, where he was told that he needed open-heart surgery and was asked to come back within the next few months, but he could not come back for review because of financial constraints. He used to take one tablet per day, in the morning, and continued his activities locally. But his symptoms progressed to the point that he could not continue his daily farming activities, and he has stopped going to the farm for the last one year, sir.

00:02:35The patient also gives a history of chest pain at night, sir, which woke him from sleep and was associated with palpitations during those episodes. He said these episodes lasted at least 30 to 60 minutes, gradually subsided, and he used to go back to sleep.

00:02:58He gives a history of palpitations for 3 years, more during exertion and relieved on rest. They were regular in nature and not associated with syncope, and there is no history of post-palpitation diuresis, sir.

00:03:21He gives a history of exertional fatigue for 2 years. Initially he was able to climb 2 floors without much difficulty, but now he is not able to climb one floor without symptoms. He visited our hospital last month with these symptoms and is being evaluated here, sir.

00:03:44There is a history of dyspnea on exertion for one year, insidious in onset and gradually progressive, to the point that he is not able to climb even one flight of stairs without dyspnea. No history of PND or orthopnea; no history of syncope or loss of consciousness in the past. No history of recurrent sore throat in childhood, migratory joint pains, or monthly intramuscular injections in the past. No history of lower-limb edema, abdominal distension or reduced urine output.

00:04:36Can I come to the past history, sir?

00:04:39FacultyDo you want him to analyse the present history now, or shall we do it at the end?

00:04:44One second. I will just tell you that the history seems all right, but you are going back and forth. In the exam, the examiners may not have sufficient time to listen, so you must present in a quick, chronological order. It does not matter even if you just say he is in NYHA class 2 or 3; you don't have to describe it in detail, at least at the DM or DNB level. Unlike undergraduates or postgraduates, you don't have to describe everything. You can straight away act like a consultant and present as you would in the OPD. From here we have got so many symptoms and we have gone back and forth: chest pain, and dyspnea on exertion being the last symptom to appear.

00:05:34So, taking the clue from Sir, what do you think from the present illness? Okay, you finish; we won't disturb you till the past history.

00:05:42CandidatePast history, sir. The patient is not a known case of diabetes mellitus, hypertension, asthma or tuberculosis, and there is no history of CVA in the past.

00:06:03Coming to the family history, sir: the patient gives a history of sudden death of his grandfather at the age of 50 years, and of the death of his elder brother one year back, also at the age of 50 years. The brother was admitted locally with some cardiac disease and was declared dead within 24 hours in hospital. So, his grandfather and his elder brother.

00:06:35FacultyOkay.

00:06:37CandidatePersonal history, sir: diet is mixed, appetite normal, sleep disturbed by recurrent anginal symptoms at night, bowel and bladder regular; he denies addictions, sir.

00:06:51Treatment history: the patient is currently on one medication, which he takes once, in the morning only. He gives a history of undergoing a procedure in our hospital in the last month through the right hand, and was told that he has to see a surgeon for further management.

00:07:11FacultyOkay. Have you completed the history?

00:07:15CandidateCompleted, yes.

00:07:19FacultyWhat could you get from your history? What is your interpretation?

00:07:23CandidateThe patient has prolonged, progressive angina, with palpitations, [unclear] history, and dyspnea as the last symptom. Recently he was seen here and was told that he needs open-heart surgery. I was thinking of valvular heart disease as my first differential, sir, and within that, aortic stenosis.

00:07:45FacultyWait, just hold on. Before we go to the actual things, what do you deduce from the history, in terms of what is happening to his hemodynamics? What is happening to his heart?

00:08:02CandidateThe patient is giving a history of angina, sir…

00:08:06FacultyHow do you know it is angina? Nowadays the classification is only two, isn't it: typical angina or non-cardiac chest pain? There is no atypical angina in this; it has been removed, isn't it? So what category does this fall under?

00:08:23CandidateIt falls under typical angina, sir, because it is brought on by exertion and relieved by rest.

00:08:30FacultySo how do you suggest that this is angina or not angina? What parameters do you take? WHO has given some parameters; we go by that. It is called PQR, to which we also add S and T. Sometimes we say PQRST, just to make it sure. So what is P?

00:08:51CandidateP is the pressure kind of… precipitating factors.

00:08:57FacultyOkay. Q?

00:08:57CandidateQuality of the pain.

00:09:02FacultyYes. R?

00:09:02CandidateR is retrosternal?

00:09:02FacultyNo, R is relief: relieving factors. So: precipitating factors, quality of pain, relieving factors. What is S?

00:09:14CandidateSite, the site of the pain.

00:09:14FacultyAnd the most important one, T, which is not ‘stress’ but is called the temporal profile. What is the temporal profile? How long it lasts. So how long does typical angina last?

00:09:27CandidateSir, typical angina lasts less than 20 minutes and should be brought on by exertion. The location is retrosternal, a squeezing type of pain, or it comes on when the patient is in a cold environment.

00:09:39FacultySo applying these criteria, does it fit typical anginal pain or not?

00:09:47CandidateYes, sir. It is brought on by exertion and relieved with rest, and he describes it as more of a precordial, squeezing chest pain.

00:09:55FacultyHow long does it last?

00:10:00CandidateHe says for 5 years… The episodes were lasting less than 20 minutes only.

00:10:05FacultyYou also said he was getting chest pain at night.

00:10:08CandidateYes, ma'am. At night, and that too recently, for the last 2 years, he has had brief episodes of sudden chest pain which woke him from sleep, lasting less than 30 minutes only, ma'am.

00:10:22FacultyActually, typical angina lasts only 2 to 5 minutes. Less than 2 minutes is probably non-cardiac chest pain. Rarely it can go up to 10. Definitely, as you said, it will be less than 20 minutes, but actually it lasts only 2 to 5 minutes if it is typical anginal pain.

00:10:41Coming to the nocturnal part of it: what does this nocturnal chest pain fit into? Can it not be PND?

00:10:48CandidateNo, sir, he is not specifically describing PND.

00:10:51FacultyHow do you say that this is nocturnal chest pain?

00:10:54CandidateHe says it woke him from sleep, it was squeezing in type, it was associated with palpitations during those episodes, and sometimes he had sweating as well. It got relieved after he got up and waited for some time, and then he used to go back to sleep.

00:11:08FacultyHow sure are you that it is not PND?

00:11:22CandidateNo dyspnea, only chest pain.

00:11:22FacultySo what is the factor that distinguishes PND from nocturnal angina? How do you differentiate PND from nocturnal angina?

00:11:39CandidatePND will make him gasp for air; it will make him get up and go to the window, gasping, with difficulty in breathing, sir. But he says it is more of pain, chest pain only, which got relieved within a few minutes, and then he went back to sleep. PND might not let him go back to sleep, sir; if it is very severe, he might be awake the whole night.

00:12:01FacultyOkay. One small digression: what is linked angina?

00:12:06CandidateSir, linked angina is referred angina because of a vasovagal reflex. Sorry, because of epigastric reflux there will be vasovagal activity, leading to reduced coronary supply, which can produce an ischemic type of pain.

00:12:25FacultyLinked angina means it is linked to the gastric system, but it is not due to GERD or reflux. It is something else, like postprandial angina due to what? What is the culprit artery in linked angina? Is there any culprit artery? What about the superior mesenteric artery; does it form part of it? So it is something linked to the GI system; it is postprandial. As far as I know it is not equivalent to GERD, but yes, it is linked to the gastrointestinal system. Okay, fine.

00:13:16Then, coming to the next symptom, palpitations. How long should palpitations last before a patient gets syncope? You know very well that if it is ventricular, it will be immediate. But suppose it is atrial fibrillation?

00:13:35CandidateSir, atrial fibrillation can present during rest or exertion, and it is not…

00:13:38FacultyIf it is paroxysmal, how long should atrial fibrillation last before the patient gets syncope, or before cerebral blood flow is compromised? Of course it can vary from patient to patient and depends on the heart rate; if the rate is very fast there will be hemodynamic compromise. But generally speaking, have you any idea?

00:14:07CandidateNormally it should be 30 minutes; only then can the patient have compromise of the cerebral circulation.

00:14:12FacultyOkay. So these palpitations have progressed along with the anginal symptoms. What do you think is the cause of the palpitations?

00:14:27CandidateThe patient says they are regular palpitations, brought on by exertion and relieved with rest. Ma'am, I was thinking either that the forceful contraction of the LV is being felt as palpitation, or that the patient has an associated regurgitant lesion which is bringing on this symptom.

00:14:48FacultyNo. In this patient, are these palpitations due to a rhythm disturbance, or due to something else?

00:14:58CandidateI am suspecting associated lesions, like mitral regurgitation or aortic regurgitation: a volume-overload state leading to palpitations.

00:15:09FacultySo how can you distinguish whether palpitations due to a volume-overload state are due to mitral regurgitation or aortic regurgitation? What is the symptomatology that differentiates them?

00:15:27CandidateSir, in mitral regurgitation fatigue is the first symptom, followed by palpitations, sir.

00:15:40FacultySo fatigue is the distinguishing feature? Why the fatigue?

00:15:46CandidateReduced cardiac output during exertion leads to reduced supply to the peripheral musculature, resulting in fatigue.

00:16:00FacultyIs angina common with MR or with AR?

00:16:00CandidateAR. AR can cause it through the runoff phenomenon: the patient has reduced coronary filling and reduced coronary perfusion pressure, which can lead to anginal symptoms.

00:16:25Faculty[unclear] more in AR or MR? Is end-systolic wall stress more in AR or in MR?

00:16:43CandidateSir, the determinants of myocardial oxygen demand are heart rate, contractility… So wall stress… eccentric dilatation will have…

00:16:58FacultyWhat is wall stress?

00:17:02CandidateWall stress is the pressure on the muscle because of the overload state.

00:17:08FacultyThere is a formula for wall stress.

00:17:13CandidateYes, sir. Wall stress is equal to [inaudible] into the radius of the chamber, divided by the thickness of the wall.

00:17:27FacultyOkay: PR by 2T. Not twice; PR by 2T. So what does wall stress do to the LV?

00:17:38CandidateSir, when the patient has a volume-overload or pressure-overload state… In the pressure-overload state the LV becomes thickened to reduce the wall stress, sir, as in aortic stenosis. In regurgitant lesions the radius increases, sir, and hence wall stress increases more; the compensation is less than in stenotic lesions, with eccentric dilatation of the chambers.

00:18:12FacultyHow do you explain the fatigue here?

00:18:17CandidateBecause of the chronic nature of the disease, reduced cardiac output has resulted in fatigue in this patient, sir.

00:18:29FacultyHeart failure? You mean heart failure?

00:18:34CandidateYes, sir. The patient has also developed dyspnea recently, sir: heart failure.

00:18:40FacultyBut the patient can have reduced output because of regurgitation and also because of a stenotic pathology. Anything else? So from this you have to come to a diagnosis, a provisional diagnosis.

00:19:00CandidateFrom my history, the diagnosis, sir? The differential diagnosis, sir? Shall I tell you, sir?

00:19:09FacultyNo. From history, what do you diagnose?

00:19:16CandidateSir, congenital heart disease, bicuspid aortic valve.

00:19:20FacultyWhat is the NYHA class of symptoms?

00:19:40Now just tell us the pathology; then you can tell the etiology. Pathology, pathophysiology, then etiology. What is the pathological diagnosis?

00:19:49CandidateSir, congenital heart disease, bicuspid aortic valve, aortic stenosis with aortic regurgitation.

00:19:55FacultyHow do you say bicuspid aortic valve from the history?

00:20:01CandidateSir, he developed angina as the first symptom, followed by palpitations and fatigue, sir, and then dyspnea. In this order of sequence I was thinking of aortic stenosis as my first diagnosis, sir. But aortic stenosis is usually seen in elderly patients, and he was around 45 years of age when he developed these symptoms. So in a younger patient with this aortic stenotic pathology, I was thinking more of a bicuspid pathology, sir.

00:20:32FacultySo initially it was AS, and then it became AR? It started with AS?

00:20:36CandidateYes, sorry, yes. He had angina because of aortic stenosis.

00:20:40FacultyThen you add AR. How did AR come? Was there any endocarditis, or an intervention?

00:20:44CandidateNo, nothing associated.

00:20:52Faculty[unclear] In bicuspid aortic valve, stenosis develops and becomes severe. We are talking of the symptoms: angina, fatigability, palpitation. Aortic stenosis will not produce palpitations; volume overload is not a feature of aortic stenosis. Then how do you explain these things? How did severe AR come about? Look for a dilated aortic annulus. Because of the chronicity of the stenosis? What is the natural history of bicuspid aortic valve? How many develop AR, how many mixed disease?

00:21:29CandidateSir, in bicuspid aortic valve, AR is the predominant pathology that develops.

00:21:40FacultyIn bicuspid aortic valve, AR is the predominant lesion?

00:21:53Just remember: one-third, one-third, one-third.

00:22:02Would you like to consider any other form of disease?

00:22:02CandidateYes, sir. He has also given a history of cardiac death in his family members, sir, so I was thinking of HCM as one more differential, with mitral regurgitation.

00:22:17FacultyAt 45 years of age, in India, which disease would be the commonest?

00:22:26CandidateRheumatic disease is the commonest, not ischemic.

00:22:26FacultySuppose I say this is ischemic: ischemic MR. Coronary artery disease, severe triple-vessel disease, with ischemic MR causing palpitations and fatigue, with severe angina. Is that possible? Is CAD with ischemic MR possible in this case?

00:22:55CandidateYes, sir. He has developed dyspnea also, sir; if he has any LV dysfunction, that can result from ischemia.

00:23:05FacultyHow do you conclude LV dysfunction?

00:23:05CandidateThe history of dyspnea, sir, in the last one year.

00:23:15FacultyAnd he also has fatigue.

00:23:18CandidateSo, first, bicuspid aortic valve disease, sir…

00:23:24FacultyAR dominant? Then tell me: palpitation, resting palpitation, nocturnal angina; how do you explain them? [unclear] syncope? [unclear], could be more than that.

00:23:50So your pathology is aortic valve disease, which could now be AR dominant, or aortic valve disease with coronary disease, both.

00:24:02CandidateHe might have coronary artery disease, which might have [unclear] his aortic stenosis symptoms, sir.

00:24:10FacultyDoes he have any risk factors for heart attack or heart disease? Diabetes?

00:24:15CandidateHe doesn't have any risk factors, sir.

00:24:15FacultyHe said no risk factors, and the brother had sudden death. We don't know whether it was ischemic heart disease. Both individuals, the grandfather and the brother, had sudden death, so again we are not very sure whether it was ischemic heart disease. Angina starting at 45 years without any risk factors is possible; we see so many. But still, if there is a family history of sudden death, and angina, what do you think of first? [unclear: possibly ‘hypertrophic cardiomyopathy as the first diagnosis’]

00:24:54CandidateHe was not very sure about the deaths of the family members. When I asked, he told it like that, and I was thinking it might be an associated cardiomyopathy.

00:25:14FacultyThat means congenital, I mean familial, bicuspid disease? Does bicuspid valve run in families?

00:25:25CandidateYes, sir. In familial cases the associated gene is on chromosome 9, with NOTCH1 mutation. It is familial in up to 10%.

00:25:34FacultyNo, tell me: if there is a family history of sudden cardiac death in two members, and the patient now has symptoms of angina, fatigability and palpitation, what do you think? What is your first diagnosis? He has been told to go for surgery; that is different. People also do surgery for hypertrophic obstructive cardiomyopathy [unclear].

00:26:07So what is your final impression at the end of the history?

00:26:14CandidateValvular heart disease I was thinking, sir, with cardiomyopathy as the second diagnosis, and ischemic heart disease as the third differential, sir.

00:26:28FacultyWhat is it that you want to get from your history? There are certain components of your diagnosis, isn't it? You want the etiological diagnosis, the anatomical diagnosis, the complications, and the NYHA functional class. These are the final components of your diagnosis. What does history give you? Most importantly, it helps you identify the etiology; examination gives you the anatomical diagnosis. You combine the two, with the relevant questions you ask the patient. So from your history, what do you think is the etiology here? What pathological process is causing the disease in him?

00:27:24CandidateI am thinking bicuspid, so congenital. He has a problem that has been present for a long time, so congenital heart disease is a possibility in this case.

00:27:35FacultyDo you want to stop your differential diagnosis there, or widen your thinking and keep cardiomyopathy also in the differential? Which one would you consider?

00:27:46CandidateHypertrophic cardiomyopathy, sir.

00:27:46FacultyYou already said cardiomyopathy.

00:27:50Sir, I am asking about my own issue. Any patient who has, as mentioned, a bicuspid valve with severe AS would get angina pectoris. If you are taking isolated aortic valve disease, it has to be severe for angina pectoris. Then he developed palpitations and nocturnal angina, symptoms of [unclear]. How did that happen? Severe AS has now become AR, with all the symptoms of AR. How did that happen without endocarditis, without any fever or anything like that?

00:28:28CandidateI asked, sir. I asked for any history of hospital admission or fever; there was none.

00:28:33FacultyAs per your diagnosis, how do you justify it?

00:28:43Candidate[unclear] Maybe the valves have become calcified, leading to reduced coaptation, which can lead to regurgitation.

00:29:00FacultyIf the patient has aortic valve disease, and if it is very specific, what is the dominant pathology? You said that because the patient develops severe calcification, the [unclear] disease then develops. No, not possible. It must be just AR only; all the symptoms can be described by AR.

00:29:29Tell me one more thing. In the classical teaching of [inaudible], you have angina, syncope and dyspnea, three symptoms, and without treatment you know there is the 5, 3, 2 and all that. But in daily life, when you see patients with aortic valve disease, many complain of dyspnea as the predominant symptom. Why does it occur? Once dyspnea develops, they say longevity is limited; it is not like that, but you do see patients who have dyspnea as the predominant symptom. Why does it occur in AS?

00:30:02CandidateSir, because of increased LV end-diastolic pressure, leading to increased LA pressure, leading to PVH, which produces the dyspneic symptoms.

00:30:16FacultyPVH will occur in AS. Because of…?

00:30:24CandidateResistance to flow out of the LV has created the back-flow.

00:30:24FacultyAnd if there is increased LV end-diastolic pressure or volume in AR, it should get reflected straight away to the LA, and the patient should have PVH. But it doesn't occur; patients with AR do not develop dyspnea. Why? Is there associated mitral disease also?

00:30:44CandidateIt might progress…

00:30:44FacultyNo, without mitral valve disease.

00:30:44CandidateYes, sir.

00:30:48FacultyThere is increased LV end-diastolic pressure, but it doesn't get reflected to the LA unless there is failure of the LV. What prevents it from getting the LA involved?

00:31:03CandidateDecreasing the wall thickness?

00:31:03FacultyLet's say free AR is there. The end-diastolic pressure is very high, you know, 35, but the LA pressure doesn't go up that much, and PVH doesn't occur. What prevents it from going into the LA, the LA pressure going up?

00:31:24CandidateThe mitral valve?

00:31:27FacultySo what does AR do to prevent that pressure from going into the LA? You will see it on echo, many times. It lifts the anterior mitral leaflet into a semi-closed position. The free AR lifts the anterior mitral leaflet into a semi-closed position and thus prevents the LV pressure from getting transmitted to the LA, correct? That is why PVH is a late feature, or it will not occur. Okay, we will go forward to the examination.

00:32:06Can it be lone AR only, sir? Lone AR, with a very large regurgitant volume? Can you explain it? [unclear]

00:32:27All right. Fatigue is also a rare symptom, no? Yes, palpitation is the commonest presenting symptom.

00:32:35CandidateGeneral examination, sir. The patient is moderately built and moderately nourished, well oriented to time, place and person. Height 160 cm, weight 49 kg, BMI 19.1 kg/m². Pulse rate 76 beats per minute, regularly irregular, low volume, normal character.

00:32:52FacultyWait, just hold on. What are you saying, regularly irregular?

00:32:57CandidateYes, sir.

00:32:57FacultyOkay. What does it mean? Okay, go on.

00:32:57CandidateNo radio-radial delay, no radio-femoral delay. All peripheral pulses are felt, with a pulse deficit of less than 10 beats per minute, sir.

00:33:13Blood pressure, sir: right upper limb 108/80 mmHg, left upper limb 106/[unclear] mmHg, bilateral lower limbs 112 mmHg systolic. Respiratory rate 14 cycles per minute, thoracoabdominal type. Saturation 98% in all four limbs. No peripheral signs of infective endocarditis or aortic regurgitation noted, sir.

00:33:41FacultySo what is the interpretation of this finding of yours, ‘regularly irregular’?

00:33:47CandidateThe patient might be having premature ventricular contractions, because the pulse deficit is less than 10 beats per minute.

00:33:59FacultyWhy does it become regularly irregular: every second beat, every third beat? What is the nature of the irregularity? You said it is regularly irregular; for example, bigeminy?

00:34:18CandidateIt could be trigeminy or quadrigeminy. After at least 5 to 6 beats I was getting one extra beat, premature compared with the previous cycles.

00:34:30FacultySo you could feel the premature beat? Or did you feel a pause?

00:34:35CandidateNo, sir, I was feeling the premature beat; after that a little pause, and then it continued again.

00:34:44FacultySo, 5 to 6 beats?

00:34:44CandidateYes, sir, a premature beat, and then it continued. About 7 to 8 beats, not 5; 7 to 8, sir.

00:34:54FacultyIf you felt premature beats, you can just say that, because it is not that regular; you are saying 5, 6, 7, 8. Why don't you just describe the pulse as irregular and stop at that? What is the ‘regularity’ in this irregularity?

00:35:02CandidateOkay, sir. I will mention irregular, sir.

00:35:15The patient has pallor; no icterus, no cyanosis, no clubbing, no lymphadenopathy, no pedal edema.

00:35:24Jugular venous pressure, sir: it is visible 2 cm above the sternal angle at 45 degrees, with normal waveform, sir.

00:35:35FacultyAbove the sternal angle. What is the normal JVP measurement?

00:35:41CandidateIt will be less than 3 cm above the sternal angle, sir. It is less than 8 [unclear], sir, normally.

00:35:46FacultySo here it is 2 cm. And how did you see that?

00:35:54CandidateSir, I used two scales, sir, and a [unclear] light, at 45 degrees.

00:35:58FacultyAt 45 degrees, if the venous pulsation is seen above the clavicle, is that normal? Even at 45 degrees it generally is not seen above the clavicle. So then how did you see it? How did you measure it?

00:36:16CandidateUsing the scales, sir.

00:36:16FacultyNo, you must see it. Otherwise, unless you see the upper level of the column and the pulsation… In the sitting position, clearly it is abnormal; there is no question about it. But even at 45 degrees, if pulsations are seen above the clavicle, it is generally considered abnormal, and it will be more than 3 cm from the sternal angle. Anyway, you said 2. Can you go down to 30 degrees, or does it have to be 45 degrees? Can it be 60 degrees?

00:36:48CandidateNo, sir.

00:36:53FacultyAnd in what way does the measurement change?

00:36:53CandidateSir, if the patient is at 60 degrees, we cannot take 3 cm as the cut-off, sir; it should be lower, sir.

00:37:05FacultyBecause as the patient comes to 60 degrees you have a different normal value, at 30 degrees another, and at 45 degrees another? What are the values for these positions? See, how did you measure it? How did you put those two scales?

00:37:17CandidateOne scale I put perpendicular to the sternal angle, sir, and the other scale…

00:37:27FacultyThat is why I keep telling you: in the examination, do not describe the JVP at the 45-degree position at all, because it invites all these questions which Sir is asking. Just say, with the patient sitting upright by the side of the bed, whether the JVP is seen above the clavicle; then it is elevated, that is all. Then you describe the waveforms. That is much simpler than trying to measure exactly from the sternal angle, and then having to quote the CT study on what the centre is: what is the phlebostatic axis? Do you know what the phlebostatic axis is?

00:38:17Anybody in the audience? What is the phlebostatic axis, when they describe the JVP?

00:38:23Isn't it the centre of the mid right atrium, which corresponds to which area? The mid-axillary line; no, the fourth space in the mid-axillary line. That is the phlebostatic axis, where we keep the transducer in cardiac care, because that is where the pressure transducer will measure accurately from zero. So that is important. So just say that in the sitting position it is visible or not visible; that's enough.

00:38:55And of the two scales you put, one is placed horizontally at the upper level of the venous pulsation, and the second one perpendicular to that scale, perpendicular to the ground: basically horizontal and vertical. It is not perpendicular to the sternum. The sternum is at an angle; you can't put that scale perpendicular to the sternum, correct? That is the important thing to know: vertical height. You are measuring the vertical height of the column of blood, and that should be the same whether you measure at 30, 45 or 60 degrees, because it is the vertical height that you are measuring. Okay, go ahead.

00:39:37CandidateJVP: normal waveform, sir. Cardiovascular examination, sir: inspection and palpation. The chest is bilaterally symmetrical; the apex is located in the 5th intercostal space…

00:39:53FacultyOne small thing I will tell you; some examiners are a little finicky about this. You have told the blood pressure, the pulse, everything; that is also the cardiovascular system, and it gives a lot more information about the cardiovascular system. So you don't have to say separately ‘cardiovascular system: inspection and palpation’. The JVP and blood pressure are all part of the cardiovascular system examination; they are not part of the general examination. So remember that.

00:40:16CandidateOkay, sir.

00:40:25Faculty[unclear] Four headings. For the JVP you should describe four headings, 1, 2, 3, 4, like this.

00:40:39CandidateSir, one is the JVP pressure, and the waveform, and…

00:40:43FacultyHow is it, meaning respiratory variation. Respiratory variation, and something else: the hepatojugular, the abdominojugular reflux. [unclear] Do not mention those things [unclear].

00:41:12CandidateApex located in the 5th intercostal space at the mid-clavicular line, with medial retraction, heaving in type. A systolic thrill in the right intercostal space was noted. Suprasternal pulsation was present. No palpable P2; sorry, a palpable S4 was there. No palpable P2, no parasternal heave, no dilated veins over the precordium, no hepatojugular reflux.

00:41:41FacultyWhy have you brought the AJR here? You were doing palpation.

00:41:50CandidateYes, palpation; I have to return. Sorry, the JVP examination I have to complete there.

00:41:56FacultyWas the thrill present?

00:41:56CandidateYes, sir. A systolic thrill was present in the right second intercostal space, sir, and actually the thrill was getting accentuated after the ectopic beats.

00:42:12FacultyYou could appreciate that? Okay, good.

00:42:19The importance of the abdominojugular reflux was brought back in which trial, conducted in recent times? What was the name of the trial that brought back clinical examination findings like edema, two-pillow orthopnea and bendopnea [unclear]? Which trial is this? The ESCAPE trial: heart failure with the PA catheter [unclear].

00:42:50CandidatePercussion, sir: the left heart border corresponds to the apex; the right heart border is retrosternal; the left second intercostal space is resonant; hepatic dullness is percussed in the right 5th intercostal space in the mid-clavicular line; stomach tympany on the left side.

00:43:10Auscultation, sir.

00:43:10FacultyBefore we go to auscultation, what have we got? What are you going to expect now? What have we got so far? The patient has a low-volume pulse, with the blood pressure [unclear]. There are no signs of regurgitation. Then, the pulse character is normal… ectopics; the pulse character is not normal? The JVP is unremarkable. You have got a heaving apical impulse, a thrill in the right second intercostal space, no left parasternal heave, isn't it? So what are you going to expect now? What is the character of the apical impulse?

00:43:49CandidateHeaving apical impulse.

00:43:56FacultyThen you found the suprasternal pulsation also, which very importantly you have mentioned, and you could palpate the S4. Did you simultaneously palpate the…?

00:44:09CandidateI tried to check, sir, but I couldn't time it properly, sir.

00:44:13FacultyThis is one of the classical ones. Afterwards you can go and see it again; it is very easily appreciable. The apico-carotid delay is very clearly appreciable in this particular case; it doesn't take much time. The gap is quite long: the apico-carotid delay. What could be the pulse character? The pulse is also very low, slow rising. Based on the apico-carotid delay, what could be the pulse character? Pulsus parvus, that is, slow rising, late peaking.

00:44:49CandidateSlow-rising, late-peaking pulse, with low volume.

00:45:00FacultyBut we are getting the suprasternal pulsation there. Suprasternal pulsation: what do you say?

00:45:06CandidateMaybe a dilated aorta, or an associated regurgitant lesion, because the pulse volume and character are normal. Sir, I was expecting low volume with late peaking…

00:45:20FacultyNo, Sir is asking the cause of the suprasternal pulsation.

00:45:26CandidateOne is an associated regurgitant lesion, aortic regurgitation, or a dilated aorta.

00:45:35FacultyA dilated aorta; but the other things you have ruled out, isn't it, especially from the blood pressure and other measures?

00:45:42CandidateYes, sir.

00:45:42FacultyOkay. So now auscultation.

00:45:47CandidateAuscultation: S1 soft; S2 paradoxically split; LV S4; a harsh, high-pitched, late-peaking systolic ejection murmur, grade 4/6, best heard in the right second intercostal space.

00:45:58FacultyYou mentioned that S2 is paradoxically split, but did not mention the intensity: the intensity of aortic closure and pulmonary closure.

00:46:12CandidateS2 soft.

00:46:18FacultyS2 is soft, with paradoxical splitting?

00:46:18CandidateIt was soft.

00:46:18FacultyBoth are soft, but you are able to hear both sounds?

00:46:31CandidateInitially I was feeling that S2 was single, sir, because S2 was soft, but I made him expire more and checked again, sir, at that time.

00:46:44FacultySo if you have a paradoxical split, a theoretical question: how do you know which is A2 and which is P2? How are you sure which is the first sound? In paradoxical splitting it is P2, then A2. So how do you know which is P2, which is A2, and which is soft? In paradoxical splitting, how will you find out?

00:47:08Candidate[unclear] split means during inspiration we will hear one sound, and during expiration there will be the paradoxical split.

00:47:14FacultyI agree. But how do you know that this is P2 and not A2, and that is A2 and not P2? Right. The thing is that you must learn to inch your stethoscope. In fact, if you take the new Hurst, it always says start auscultating from the second right intercostal space, isn't it? Then go to the second left intercostal space and come down. Now at the apex, the sound which is heard is always A2, unless there is pulmonary artery hypertension. So if the first component of the second heart sound disappears at the apex, then that is P2, and the split is paradoxical. Similarly, if you want, you can recheck by inching backwards, and you will know which is P2 and which is A2. Fine. And please do not read the three types of paradoxical split mentioned in Abrams; you will get confused. Take only the classical paradoxical split, which you have explained.

00:48:28CandidateMurmur, sir: a harsh, high-pitched, late-peaking systolic ejection murmur, grade 4/6, heard in the right second intercostal space, radiating to both carotids, which was aggravated in intensity after an ectopic beat, sir.

00:48:40FacultyHarsh and high-pitched? The murmur is harsh. Is it high-pitched, low-pitched or medium-pitched? Medium-pitched, or mixed frequency.

00:49:05CandidateAnother, a decrescendo early diastolic murmur…

00:49:05FacultyYou mentioned some ectopics there. What is happening post-ectopic?

00:49:15CandidateIt is increasing in intensity, sir. Post-ectopic it is increasing, suggesting an increased gradient across the valve, hence severity of stenosis.

00:49:27FacultyIn which condition is that very useful?

00:49:33CandidateAortic stenosis versus mitral regurgitation, sir.

00:49:33FacultyThat is okay; that I agree. But which other condition? It will tell you the level of [unclear]. HCM, correct. Does it differentiate fixed obstruction from dynamic obstruction?

00:49:48CandidateYes, sir.

00:49:54Another decrescendo early diastolic murmur, grade 2/4, best heard in the left 3rd intercostal space. And a pansystolic murmur of…

00:50:11FacultyNo: what is the important component of the early diastolic murmur? You told the area, you told the timing of the murmur; then what else?

00:50:21Candidate[unclear] The length of the murmur. It was very short, sir; it was not going till S2, sir.

00:50:37UnclearNo, sir, the early diastolic murmur doesn't go up to S2.

00:50:42FacultyDid you mention that? [unclear]

00:50:53So is the length of the murmur important here? Is it important to assess severity?

00:51:01CandidateYes, ma'am. In MS…

00:51:01FacultyNo, here he is asking about the EDM.

00:51:06CandidateYes, ma'am. A prolonged early diastolic murmur is suggestive of a severe regurgitant lesion, ma'am: in aortic regurgitation, more than half of diastole.

00:51:16FacultyOf course; that's the reason [unclear], one of the most important things. So the longer the murmur, the more severe the regurgitation, isn't it? Except in acute AR, where it gets short. Okay.

00:51:34CandidateOne more murmur: a pansystolic murmur, grade 3/6, heard at the cardiac apex, radiating to the left axilla, best heard during expiration; post-ectopic, it was not getting aggravated.

00:51:56Other systems: respiratory system, bilateral air entry present, no added sounds. Per abdomen: soft, non-tender. CNS: [unclear]; no focal neurological deficit noted, sir.

00:52:08FacultyOkay. Did you look for anything? You said bicuspid aortic valve. Did you hear anything?

00:52:16CandidateI didn't hear any click.

00:52:22FacultyS1 was so soft. Why is S1 soft?

00:52:28CandidateOne is that I could hear a pansystolic murmur, ma'am, maybe associated mitral regurgitation; or calcification of the aortic leaflets.

00:52:36FacultyCalcification of the aortic leaflets causes a soft S1? Calcification of the aortic leaflets can cause a pansystolic murmur [unclear] and softening of S1?

00:52:50He said soft S1. I was asking why there is a soft S1, and he said calcified aortic valve. But tell me the mechanism: how does calcific aortic stenosis produce a soft S1? That is the question.

00:53:09CandidateIt cannot tense because of the calcification, so we cannot get that sound.

00:53:13FacultyS1 is the mitral valve, the mitral valve. S1 is soft because of the calcification? How?

00:53:21Nobody? If the calcification does something: it prolongs the PR interval. Long PR. And here there is [unclear]; see, there is LBBB there. In LBBB [unclear], LV activation is delayed [unclear]. So that can produce a soft S1. And MR is also there, but MR is not very significant here.

00:53:50You didn't get any signs of MR here? Any sign of MR other than this pansystolic murmur? Was there an S3?

00:54:00CandidateNo, sir.

00:54:00FacultyWas there an MDM?

00:54:00CandidateNo, sir, I didn't get it. I couldn't hear one.

00:54:05FacultyI'll ask you one question: what happens to S1 in pre-excitation? What happens to the intensity of the first heart sound in pre-excitation, when there is a short PR? Is it normal? Is it increased? Is it decreased?

00:54:32CandidateIf it is a long PR, S1 should be soft. If it is a short PR due to pre-excitation, the short PR will cause a loud S1.

00:54:41FacultyNot necessarily. Why? What is the mechanism? In a short PR, why is S1 loud? Just think about the mechanism.

00:54:51CandidateThere is a shorter time for the mitral valve to close [unclear], so…

00:54:56FacultyWhat you are saying is true, but remember, in WPW syndrome the QRS is not formed only by the pre-excited pathway. It can be fully pre-excited, but there is also the normal pathway; it is a fusion between the normal pathway and the bypass tract. So S1 tends to be normal; it doesn't tend to be that loud.

00:55:25CandidateCongenital heart disease: bicuspid aortic valve with severe aortic stenosis, with moderate aortic regurgitation, and mitral regurgitation.

00:55:49Faculty[Partly in Hindi; unclear] Multivalvular disease: the diagnosis could be rheumatic, or [unclear].

00:55:58Unclear[unclear] significant; AS is dominant. [unclear] LV diastolic dysfunction [unclear] or systolic dysfunction.

00:56:16FacultySo you've got a bicuspid aortic valve. Are you sure about that? Because to diagnose a bicuspid aortic valve clinically, at least you should have a… How did you decide on bicuspid? On history?

00:56:31CandidateBecause of the patient's history: he has aortic stenosis, and he has developed it at a younger age. So I was thinking more of a bicuspid etiology rather than rheumatic or any other etiology.

00:56:43FacultyBut you have got two other lesions. You said mitral regurgitation and aortic regurgitation along with aortic stenosis, so it can be rheumatic, isn't it? Okay, you have known the case. You have known the case; that's why we are talking like that.

00:57:05But with multivalvular disease, how do you diagnose bicuspid [unclear]? You may be right, but clinically, how can you give it as [unclear]?

00:57:22Even the history, as the other examiner pointed out, is more towards AR, and you are still focusing on aortic stenosis and bicuspid aortic valve, as if you have been biased. That's the impression that we get.

00:57:38If you are not sure of a bicuspid etiology, you should not mention it.

00:57:41CandidateOkay, sir.

00:57:41FacultyIn fact, when you come to the final diagnosis, be as non-specific as possible, because you should not give the impression that you know about the case. You may know it, that's all right, but still that impression should not be given.

00:57:57[unclear] Then I can say probably, okay: ECG, or whatever. What do you expect from this?

00:58:07CandidateLVH with strain pattern, and also LA enlargement.

00:58:19FacultyLeave the ectopics out. From the ECG, how will you know whether there is MR or AR?

00:58:25CandidateSir, both are volume-overload states. [unclear] leads with tall waves [unclear].

00:58:33FacultySir is asking how to differentiate MR from AR on the ECG, from, say, the precordial leads. More specific. Anybody?

00:58:50They all know the answers. Deep S waves in V1 and V2 would say that it is AR, correct. So if you get deep S waves in V1 and V2, you know it is more due to AR than to MR. Why does it occur? What is the reason for the deep S waves in V1 and V2?

00:59:12UnclearDeep S waves in V1 and V2 indicate LV forces. So that would be in AR, because there is eccentric dilatation; whereas in MR, because of left atrial enlargement, [unclear] gets activated.

00:59:24FacultyPerfect. That is the perfect answer: there is truncation of the S waves in MR. It does not occur in AR.

00:59:40Next, the echo. Or I can take the X-ray also.

00:59:49CandidateThis is [unclear]. This is a PA view chest X-ray, overexposed, with normal skeletal structures, with [unclear] CT ratio [unclear].

01:00:11FacultyFine. You can straight away say, at a consultant level you don't have to [unclear]; cardiomegaly is there. The cardiomegaly is of left ventricular type, very typical. You said MR; is there any left atrial enlargement?

01:00:33CandidateNo LA enlargement.

01:00:33FacultyYou can see the prominent, dilated ascending aorta. What is that due to?

01:00:42CandidateDilated aorta… [unclear] regurgitation.

01:00:51FacultyHow can it be post-stenotic? How will you get a dilated aorta? You said bicuspid aortic valve; what happens here?

01:00:59CandidateIt will have post-stenotic dilatation of the aorta.

01:00:59FacultyNot necessarily only post-stenotic. You have an aortopathy, if it is bicuspid.

01:01:20Okay, go to the echo. It almost looks like the Schmoo sign. Do you know what the Schmoo sign is? It doesn't matter; you don't have to know. It is classically described in bicuspid aortic valve AS.

01:01:50CandidateParasternal long-axis view showing the LA and LV, with the mitral valve opening, and the aortic valve. There is [unclear] septal myocardium, with not much [unclear].

01:02:11FacultyConcentric?

01:02:11CandidateConcentric, yes. This is showing concentric left ventricular hypertrophy, with [unclear] segments. Short-axis view at the papillary-muscle level showing LVH. This is at the apical level. This is the short-axis view at the aortic valve level, showing thickened aortic valve leaflets, and the pulmonary artery.

01:02:55FacultyThickened and calcific.

01:03:11What would you want to see to call it a bicuspid aortic valve in this view? To commit yourself to a case of bicuspid aortic valve, what is it that you specifically want to look for?

01:03:27CandidateClosure of the…

01:03:27FacultyYou want to see it in the closed position? Do you diagnose it in the closed position or the open position?

01:03:36CandidateHorizontal or vertical closure; the closed position.

01:03:40FacultyIn the closed position you can confuse it with a raphe; all three may be seen. What will be the shape of the aortic valve in a bicuspid aortic valve in systole? What does it look like with a tri-leaflet valve, and what does it look like with a bi-leaflet valve? Not again in the closed position. In the open position you see the triangular opening, and in a bicuspid aortic valve it is eye-shaped [unclear]. So it is the open position of the aortic valve which gives you the clue, or confirms your diagnosis.

01:04:25The open position is during systole. During systole you should see it [unclear], that's all.

01:04:34CandidateThe five-chamber view showing aortic regurgitation. This is the CW, the continuous-wave Doppler, taken at the [unclear] level, showing a maximum gradient of 83 and a mean gradient of 57, sir.

01:05:01FacultyWhat is the diagnosis? Tell me from the ECG, X-ray, clinical findings and echo.

01:05:06CandidateSir, calcific [unclear], with severe AS; mild to moderate AR, sir.

01:05:10FacultyModerate AR? Where is moderate AR? [unclear: possibly ‘mild’]

01:05:30And [unclear] LV function?

01:05:36CandidateLV function is good, sir. It looks good, sir.

01:05:36FacultyLV function is good. Then what is the L wave? Do you know what the L wave is? What does the L wave tell you about the LV?

01:05:54CandidateIncreased LV pressure, sir, in the diastolic period.

01:05:59FacultyIncreased LV pressure in diastole: it tells you that the LV is stiff, isn't it? Okay.

01:06:10For management, that's what you have to contemplate. Would you like to do a CT here? If so, what will you look for?

01:06:20CandidateAortic valve calcification, and the aorta…

01:06:20FacultyLook at the aorta now: the aortic size. Is the aorta dilated here? [unclear] And the coronaries [unclear], already done. No, you have to look at the aortic size, this being bicuspid [unclear].

01:06:45So what three measurements will you give to the surgeon when you are assessing this sort of case?

01:06:53CandidateThe aortic annulus, and the ascending aorta [unclear]; the dimensions at the sinus and the ST junction, along with [unclear].

01:07:09FacultyWhat do you want to do? Surgery? Why not TAVI? Why not?

01:07:19CandidateThe patient is young, and he doesn't have any comorbidities, sir.

01:07:19FacultyAll your statements are now getting rapidly reversed with advancements. Why don't you want to do a TAVI?

01:07:34CandidateSir, the patient does not have many comorbidities, and the surgical risk is less.

01:07:37FacultyWhat is the age at which you do TAVI?

01:07:42CandidateSir, he is a 49-year-old male.

01:07:45FacultyAt what age do you want to do a TAVI? What are the indications for doing a TAVI in India? What is it in the US, what is it in Europe, and what is it in India?

01:07:58In TAVI, which valve do they put: metallic or bioprosthetic?

01:08:05CandidateIn TAVI, sir, a bioprosthetic one.

01:08:05FacultyIt is bioprosthetic. Self-expanding or [unclear]? And of course there is patient preference. We have to discuss with the patient, even describe metallic versus bioprosthetic, TAVI versus surgery. If the patient says, ‘Do TAVI; I don't want my sternum split’… You can do minimally invasive surgery.

01:08:36But now you should suggest minimally invasive surgery, not just [unclear] surgery. Only if you understand minimally invasive aortic valve replacement. I think it is time to do that. Now what do you say? Nobody wants [unclear].

01:08:57The decision should be based on lifetime management, and not on just one thing. We should also know whether the surgeon is going to put a tissue valve or a mechanical valve at this age, 50 years. So what do you think, at 50 years of age?

01:09:09CandidateMetallic valve.

01:09:12FacultySo if a metallic valve is put, it is done for lifetime management. I can do it; I am ready to go for a valve-in-valve. It is patient preference; you have to discuss it with the patient. The patient may say, ‘Sir, next time I will go for valve-in-valve.’ I have a feeling this aorta is going to take only a 19 mm. It looks quite small, actually; it may take only a 19 mm, 20 mm. What was the annulus, 20 or 21?

01:09:41CandidateIt was small, sir: 20 or 21, sir.

01:09:45FacultyCan we just summarise the case, sir? We'll go to the next.

01:09:45Actually, you have presented quite well. Of course, you must be able to answer many of these questions which we ask; some will be straightforward, some will be a little tilted. But give the history short and nice, because many of these cases in the exam are not real long cases; they are short long cases. It must not be in telegraphic language, but at least in as precise language as possible, and don't go back and forth. Present the symptoms in chronological order. It doesn't matter if you have to say past history; everything can be presented as one history in our set-up. Otherwise it's good.

01:10:39Sir, one question to you. Suppose the patient wants a metallic valve; which valve will you put in? If you want a metallic valve, which valve will you put in? One that requires a very low INR.

01:10:58Anyone want to take that? If the patient has to be put on a metallic valve, which valve would you prefer?

01:11:00UnclearOn-X.

01:11:11FacultyThank you [name omitted]. Thank you, teachers. It was a wonderful case. It takes a lot of guts to stand and present. Thank you so much; give him a big hand. We all learn from such cases. I am sure we all learn from this; it is not just one person presenting.

04

Day 1 · 17-Oct-2026 · 10:26 hrs · 52 min

VSD and Pulmonary Hypertension Case Discussion

  • Ventricular septal defect
  • Eisenmenger syndrome
  • Pulmonary arterial hypertension
  • NYHA classification
  • JVP and heart sounds
  • Chest X-ray
  • ECG
  • Echocardiography

A candidate presented Short Case 1: a 23-year-old man with progressive exertional dyspnea, palpitations and hemoptysis who had previously been told he had a hole in the heart and was advised medical management after a catheter procedure. The candidate proposed a post-tricuspid shunt with Eisenmenger physiology at the ventricular level. The faculty questioned the candidate on the NYHA classification, the causes of hemoptysis, consanguinity, cyanosis, the JVP, the second heart sound and the murmurs, then on the chest X-ray, ECG and echocardiogram. The echocardiogram showed a large non-restrictive perimembranous VSD with a bidirectional shunt; the faculty pointed out that an estimated mean PA pressure of about 40 was inconsistent with Eisenmenger physiology, and the session closed with general advice on exam presentation.

Case
23-year-old man from Jharkhand, educated to 12th standard, not working for 3 years; dyspnea on exertion 3 years (NYHA class 1 progressing to 2), palpitations 2 years, hemoptysis 2 years; hospitalised for pneumonia at age 3; ex-smoker; previously told of a 'hole in the heart' and advised medical management after a groin procedure.
Diagnosis discussed
Large non-restrictive perimembranous VSD with muscular extension, bidirectional shunt and severe pulmonary arterial hypertension (presented by the candidate as Eisenmenger VSD). The faculty noted that an estimated mean PA pressure of about 40 was not consistent with Eisenmenger physiology, which requires systemic-level PA pressure.

Teaching points

  1. Quote NYHA class 1 exactly: known heart disease in which ordinary physical activity does not cause symptoms. What happens on more than ordinary activity is left unstated, which is one of the classification's drawbacks.
  2. Orthopnea is part of the NYHA classification (dyspnea lying down is dyspnea at rest, so class 4), but PND is not, because its mechanism is different; a class 2 patient may still have PND.
  3. The NYHA class is cross-sectional and subjective, ignores duration, does not correlate reliably with disease severity, and changes with treatment and precipitating factors even when the valve lesion is unchanged or worse.
  4. Consanguinity matters mainly for autosomal recessive conditions; autosomal dominant conditions pass on without it. Ellis–van Creveld syndrome was cited as an example.
  5. Do not bring in two pathologies when giving a diagnosis. A small ASD or VSD cannot produce Eisenmenger syndrome; in Down syndrome with AVCD, PH may be out of proportion to the defect.
  6. Cyanosis depends on the amount of deoxygenated hemoglobin, not on saturation alone: at the same saturation, a patient with a hemoglobin of 20 may be cyanosed while one with a hemoglobin of 5 may not.
  7. A palpable second sound in the pulmonary area is not necessarily P2 (A2 can be heard there in TGA or CCTGA). In ASD, P2 may be loud at the apex without PH because the RV forms the apex and flow is increased.
  8. An elevated mean JVP means raised filling pressure, which means heart failure even when the LV is preserved; distinguish it from a prominent a wave. Present the JVP in 3 parts: the mean level, the positive waves and the descents.
  9. Present the case as severe PAH with shunt reversal rather than 'Eisenmenger', because the level of the shunt is hard to locate (Paul Wood). With a non-restrictive VSD and reversal, the PA pressure must be at systemic level.
  10. Chest X-ray: overexposure blackens the lungs and hides vascular markings. Pruning is an abrupt reduction in vessel calibre of more than 50%. A right aortic arch with oligemia suggests TOF physiology, and with plethora suggests VSD or truncus. Describe the film in the standard order.
Edited transcript 309 paragraphs · 6,213 words

00:00:00CandidateShall I start, sir?

00:00:00FacultyYes, please.

00:00:03CandidateThank you. This is a 23-year-old male patient who hails from Jharkhand. He studied till 12th standard.

00:00:08FacultyHow old?

00:00:08Candidate23 years old. He has studied till 12th standard, and he has not been working for the past 3 years due to his current condition. He is accompanied by his mother, who is giving the history along with the patient himself, and the history is reliable.

00:00:29His main complaints are dyspnea on exertion for the past 3 years, palpitations for the past 2 years, and hemoptysis, that is, coughing of blood, for the past 2 years.

00:00:43The patient was apparently normal 3 years ago, when he was involved in farm activities along with his father and was able to play with his friends. Later he started to have dyspnea on exertion, which is insidious in onset and gradually progressive in nature. Initially he used to have breathlessness after working in the field for one to two hours, but over a period of 2 years the symptoms have progressed. Now he is unable to work on the farm, and he cannot even go to the farm, which is about two and a half kilometres from his home. So now he stays at home and carries out his daily activities.

00:01:24There is no associated cough, no chronic fever and no breathlessness on lying down, and there is no loss of weight. He is in NYHA class 2, sir, having progressed from class 1 to class 2 over a period of 3 years.

00:01:39FacultyWhat is class 1?

00:01:44CandidateClass 1 is no limitation of physical activity, and having symptoms on exertion, sir.

00:01:51FacultyTry to get the exact wording. Say that again.

00:01:51CandidateThere is no limitation of physical activities, and having symptoms on doing exertional activities.

00:02:00FacultyAnybody? Class 1?

00:02:10AudienceKnown heart disease. Ordinary physical activity does not result in symptoms.

00:02:20FacultyWhat happens on more than ordinary physical activity is left unstated. That's one of the drawbacks. So to say that he has [symptoms on] more than that is not true [unclear]. Ordinary physical activity does not [cause symptoms]. Okay, so he's in class 2 now?

00:02:34CandidateYes, he is in class 2 now.

00:02:34FacultyDid you ask about PND?

00:02:38CandidateYes, sir, there is no history suggestive of it.

00:02:38FacultyWhat class does PND go to? If he has PND, then what class will he be?

00:02:50CandidatePND...

00:02:50FacultyYes. Orthopnea: what class is that?

00:02:50CandidateOrthopnea is class 3, class 3.

00:03:03FacultyDyspnea at rest? Dyspnea at rest?

00:03:08CandidateYes, sir, dyspnea on lying down, or at rest.

00:03:13FacultyIs that rest or not? Lying down is rest, isn't it?

00:03:13CandidateYes, sir. Class 4.

00:03:17FacultyClass 4. And PND? See how you slip up on the most [basic things]. I was even feeling bad to ask such questions; these are such basics. You know what NYHA class 1 is? These are all very basic questions. PND is which class?

00:03:34CandidatePND is not included in the [NYHA] classification.

00:03:38FacultyAnybody? No? Okay. Is PND included in the NYHA classification? You may be class 2, but you may still have PND, because the mechanism is entirely different. So orthopnea is included in the NYHA functional class, but PND isn't.

00:04:04So what are the other limitations of the NYHA classification? What are the components of functional class?

00:04:19CandidateSir, it tells at what level the person feels the symptoms.

00:04:22FacultyWhat are the components?

00:04:26CandidateIt's mainly used for chest pain, dyspnea, palpitations and fatigability, sir.

00:04:35FacultyWhat are the limitations of this functional class?

00:04:42CandidateIt does not include the duration of the symptom, sir. It is cross-sectional.

00:04:47FacultySo it can tell you about the functional class at that point of time. Yes. Next, duration is not included. Subjective or objective?

00:04:58CandidateYes, sir, symptoms are subjective, sir.

00:04:58FacultySubjective. With class 2, [unclear] also. Does it correlate properly with the level of disease?

00:05:13CandidateSince the symptoms are subjective, sir, it varies. Actually, it may not exactly tell the severity of the disease.

00:05:21FacultyDoes it factor in the effect of medical treatment?

00:05:26CandidateYes, sir, definitely. It is going to affect the management also, sir.

00:05:30FacultyExactly. A patient who is in class 4 today will, after diuretics, be in class 3 [unclear].

00:05:37CandidateYes, sir, after the treatment he may improve also.

00:05:40FacultyHe may improve after the treatment, but the valve lesion may be the same or may actually have worsened. It is a dynamic thing. It can vary with the treatment; it can vary with any precipitating conditions. Okay, continue.

00:05:56CandidateThere is history of palpitations for the past 2 years, which is also insidious in onset and gradually progressive. It is regular in nature, and it used to occur for a period of about 10 minutes [unclear]. It is relieved on taking rest and on bearing down. There is no associated syncope, sir.

00:06:15And there is history of hemoptysis, that is, coughing of blood, for the past 2 years. The patient has had about 4 to 5 episodes of coughing of blood over the past 2 years. Before coughing of blood he has 2 to 3 bouts of cough, followed by sputum with streaks of blood, which is fresh red in colour.

00:06:36FacultyMention some cardiac conditions where you get hemoptysis.

00:06:40CandidateMitral stenosis, sir.

00:06:40FacultyAnd why do you get it in mitral stenosis?

00:06:44CandidateSir, in mitral stenosis it is because of pulmonary hypertension, or it could be due to pulmonary apoplexy, or it could be due to an associated coagulopathy. Coagulopathy means the person is in AF and is taking medications, and if it is due to a raised INR [unclear].

00:06:59FacultyWhat are the others? Apart from medication, there are usually 4 causes mentioned. Okay, go ahead. So mitral stenosis is one.

00:07:07CandidateYes, mitral stenosis is one.

00:07:18FacultyAny other cardiac condition?

00:07:18CandidatePulmonary arterial hypertension, sir.

00:07:24FacultyPulmonary arterial hypertension: is it more common in the idiopathic variety of pulmonary hypertension or in Eisenmenger?

00:07:33CandidateIt is also common in idiopathic; it is more common in congenital heart disease–related PAH.

00:07:43FacultyWhy? The pathology? Why is it more common in Eisenmenger?

00:07:53CandidateThe pathology is the same, exactly the same pathology, because [unclear]; there is blood coagulation factor and platelet factor derangement.

00:08:12Sir, coming to other causes: in Eisenmenger also he will have PH; then it could be due to cyanotic conditions, or due to platelet dysfunction, or coagulopathy. They can have hemoptysis.

00:08:31FacultyWhy is there hemoptysis?

00:08:37CandidateBecause of the raised PA pressure, there will be rupture of the bronchial arteries, or bronchial erosion, causing the bleeding. The raised PA pressure is transmitted to the bronchial arteries, causing rupture and/or erosion of the bronchial arteries. Also, pulmonary infection.

00:09:10And hemoptysis can also occur in pulmonary embolism.

00:09:10FacultyOkay, continue.

00:09:15CandidateWith these complaints the patient consulted a local cardiologist in Jharkhand, where he was examined and told that there is a hole in the heart. He was further examined and underwent a groin procedure. Later he was told to continue the medications and not to undergo surgery immediately. So he was prescribed medication. After taking the medication, the symptoms have not completely subsided; there is persistence of the symptoms, sir, after which he has come here for further evaluation and management.

00:09:50There is no history of syncope, no chest pain, and no prolonged fever or rash. There is no history of swelling [unclear] or abdominal distension. There is no history suggestive of any seizure disorder or focal neurological deficit.

00:10:12There is a past history, sir. In early childhood, at the age of 3 years, the mother noticed the child was crying excessively, was irritable and was not gaining weight. With that complaint they showed him to the local doctor, where he was admitted for a period of one week and given IV antibiotics, and they were told he had pneumonia. After that he was told to follow up, and they were also told that it may subside over a period of time. Since the symptoms subsided over a period of 2 years and the child started to gain weight on his own, they didn't go to the doctor again. Until 3 years ago the patient was asymptomatic, so they did not consult a doctor; now, because of the symptoms, they have consulted again.

00:10:57Coming to the personal history: he has a mixed diet and normal appetite; bowel and bladder are normal. He is an ex-smoker; he stopped 3 years ago. The treatment history is of taking 2 medications. He is not able to name them, but he says he takes one medication 3 times daily. There is no history of similar complaints in the family members. The patient comes from a lower-middle-class family, where he lives with his mother, father and brother. The brother is fine and does not have a similar clinical history.

00:11:38FacultyDid you ask about consanguinity?

00:11:42CandidateYes, sir, it is a non-consanguineous marriage. The patient is accompanied by his mother, and she has told that it is a non-consanguineous marriage. The four of them live [unclear]; there are 4 rooms.

00:11:55FacultyWhy is consanguinity important?

00:11:55CandidateSir, consanguinity increases the risk of heart diseases, an increased risk of genetic disease also. There is a pooling of genes [unclear], and there is more chance of getting [them].

00:12:14FacultyThis is what I mean: inbred [unclear] can be more. Which kinds of diseases are a little more common when there is a history of consanguinity?

00:12:28CandidateAutosomal...

00:12:30FacultyRecessive or dominant?

00:12:30CandidateAutosomal recessive, autosomal dominant...

00:12:30FacultyRecessive. Why? Simple questions. For autosomal dominant you don't need consanguinity; without consanguinity you can pass it on. Recessive conditions: can you name one recessive condition in cardiology? We should know at least a few that are autosomal dominant and autosomal recessive. A few you must know.

00:13:00CandidateSir, in case of...

00:13:00FacultyAnybody? Autosomal recessive?

00:13:07AudiencePompe [unclear].

00:13:12Ellis–van Creveld.

00:13:12FacultyThis is what?

00:13:12CandidateYes, sir. Ellis–van Creveld syndrome, mainly also with peg-shaped teeth, sir.

00:13:17FacultyAutosomal dominant, or is it [unclear]? Okay, continue.

00:13:24CandidateOkay, sir, I would like to summarise the case. This is a 23-year-old male patient with insidious-onset, gradually progressive dyspnea on exertion, progressing from NYHA class 1 to NYHA class 2, associated with exertional palpitations and episodes of hemoptysis, for which the patient consulted a cardiologist. There he was examined and told he has a hole in the heart. He also underwent a groin procedure, after which he was told not to undergo the procedure and was advised medical management. There is also a childhood history of increased irritability and poor weight gain, with later improvement of the symptoms.

00:14:08FacultyThat is just one episode, right?

00:14:12CandidateYes, sir, that is only one episode. But the child used to have on-and-off infections, sir, not requiring hospitalisation or IV antibiotics.

00:14:22FacultyDiagnosis?

00:14:24CandidateSo my diagnosis would be acyanotic congenital heart disease with increased pulmonary blood flow, post-tricuspid shunt. So possibly it could be VSD with PAH, or PDA with PAH, or it could also be a partial or intermediate kind of AVCD with PAH. Yes, I am suspecting, sir...

00:14:54FacultyGrown-up congenital heart disease.

00:14:54CandidateYes, grown-up, and probably Eisenmenger physiology.

00:14:58FacultyWhich covers [it], yes. So he has been told that he is inoperable. So what do you think? Is it only Eisenmenger, or can it be anything else?

00:15:05CandidateSir, they have told that as of now it can't be operated; he needs medical management. He was given a course of medication, sir, so we may test the operability. Repeat operability can be tested, sir.

00:15:21FacultyAnything else you can think of other than Eisenmenger syndrome, if a cath procedure has been done and he is told that he is not operable? Any others apart from Eisenmenger syndrome?

00:15:36CandidateIt could be... If I exclude the hole in the heart, I may think of other things. Sir, if you include the hole in the heart as well, it could be Eisenmenger due to a small hole in the heart, like a small ASD; a small ASD with associated primary pulmonary hypertension...

00:15:54FacultySo you bring in 2 pathologies?

00:15:59CandidateIf I include only smaller, subtle defects associated with concurrent pulmonary hypertension, it may become...

00:16:07FacultyGenerally you do not bring in 2 pathologies when you're giving a diagnosis. But now that you have brought it in, tell me one condition where you get pulmonary hypertension and a hole in the heart, where the pulmonary hypertension may be out of proportion to the hole. In what condition? In what congenital condition can you get a defect and pulmonary hypertension which may not be entirely related to the cardiac condition? Anybody?

00:16:42CandidateAVCD, sir. They may be associated with pulmonary hypoplasia; AVCD in Down syndrome patients, sir. Down syndrome.

00:16:49FacultyYes, Down syndrome patients are known to have that.

00:16:53CandidateYes, sir, Down syndrome.

00:16:53FacultyOkay, but generally you don't bring in 2 pathologies, right? And don't say small ASD or small VSD, because that cannot produce Eisenmenger.

00:17:04Sorry, what was the question you had? How does he become inoperable even when he doesn't have Eisenmenger? Am I right?

00:17:09Yes. He doesn't have Eisenmenger, but he still becomes inoperable.

00:17:18CandidateSir, Eisenmenger is a late thing. Because of severe PH he may not be operable, sir.

00:17:23FacultyEisenmenger is a... You didn't understand the question. Try to understand the question. It is not Eisenmenger, but it is still inoperable.

00:17:36CandidateIt may be because of a single-ventricle physiology kind of thing; it may not be operable, sir.

00:17:40FacultySingle-ventricle physiology. Yes.

00:17:47CandidateComing to the examination, sir: the patient is well built but poorly nourished, conscious, cooperative and well oriented to time, place and person, with a height of [unclear] centimetres, a weight of 45 kg and a BMI of 14 kg/m². There is no [unclear]. Grade 3 clubbing is there, and the patient has central cyanosis. There is no lymphadenopathy and no edema, but severe conjunctival suffusion is present, sir. There are no signs of infective endocarditis [unclear] and no signs of [unclear] runoff.

00:18:24The heart rate is [unclear] beats per minute: normal volume, regular in rhythm, normal in character, with all peripheral pulses felt, no radio-radial delay and no radio-femoral delay. The blood pressure in the right upper limb is 100/70 and in the left upper limb 104/70, and in the lower limbs it is 115/[unclear] bilaterally, sir.

00:18:51The respiratory rate is 20 per minute, abdominothoracic type of respiration, sir. The saturation in all 4 limbs is about 89%.

00:19:03FacultyAt what level of saturation do you get cyanosis?

00:19:10CandidateGenerally less than 90%, 92%... less than 94% [unclear].

00:19:23FacultyDoes it correlate with the level of hemoglobin?

00:19:23CandidateYes, sir, definitely. About 5% [unclear] of deoxygenated hemoglobin causes cyanosis, sir.

00:19:32FacultyAt the same saturation [unclear], you may be cyanosed if you have a hemoglobin of 20, and you may [unclear] be cyanosed if you have a hemoglobin of 5.

00:19:41CandidateYes, sir.

00:19:44FacultySo the answer is not [simply] saturation [unclear]. Did the patient not notice that he is becoming blue?

00:19:52CandidateNo, sir. He's a bit dark also.

00:19:54FacultyDid you ask him positively at the end of your examination?

00:19:59CandidateYes, sir, I asked, actually, but he was not able to appreciate it. He is a bit dark in colour also, sir, so he's not able to appreciate it.

00:20:08Sir, the JVP was elevated when I examined him in the lying-down position with a pillow behind him.

00:20:16FacultyIn the lying-down position, when you say the JVP is elevated...

00:20:16CandidateNo, with one pillow, like that.

00:20:22FacultySo does that constitute... How do you say that the JVP is elevated?

00:20:29CandidateI make the person lie down at a 45-degree angle, sir. Then I will see...

00:20:34FacultyWhat was it, sir? Just make him sit up and see. Was it elevated in the sitting position?

00:20:38CandidateThe JVP was elevated, sir.

00:20:43FacultyThat's all. In the lying-down position the jugular venous pulsation will be seen normally also. In the sitting position, was it seen above the...?

00:20:51CandidateYes, it was seen, sir, and that's elevated.

00:20:55FacultyWhat was seen? The waves were seen, or the mean level was elevated?

00:20:57CandidateProminent a waves were seen, sir. Prominent a waves are seen, and it is about 5 centimetres from the sternal angle. So it is elevated, sir; there is elevation of the JVP, and there is normal respiratory variation.

00:21:14FacultyAnd a prominent a wave?

00:21:14CandidateProminent a wave, sir.

00:21:14FacultyOkay, fine. Since there is a prominent a wave, which lesion do you want to exclude here?

00:21:19CandidateSorry, sir?

00:21:22FacultyA prominent a wave with Eisenmenger physiology: which lesion do you want to exclude here? Which lesion can be excluded?

00:21:31CandidateSorry... Ebstein anomaly may not be involved.

00:21:42FacultySorry, which type of Eisenmenger physiology? If the patient has a very tall a wave, which do you want to exclude?

00:21:55CandidateEisenmenger [unclear]...

00:21:57FacultyEisenmenger can be excluded when you have a prominent [a wave]?

00:22:07CandidateUsually it will be caused by PH and severe RVH, sir. [unclear] level, sir; [unclear] level excluded.

00:22:18AudienceASD can be excluded with a prominent a wave.

00:22:33FacultyOkay.

00:22:36CandidateComing to inspection and palpation, sir: the chest is symmetrical and the trachea is central. The apical impulse is felt in the left 5th intercostal space, half an inch medial to the midclavicular line. It is diffuse in nature, with lateral retractions [unclear]. There is also a palpable P2. Sorry, palpable... P2 is felt in the left second intercostal space.

00:23:02FacultyHow do you know it is P2 and not A2?

00:23:02CandidateSorry: palpable second sound, sir.

00:23:07FacultyPalpable second sound. We don't know if it is A2 or P2. Just because it is palpable in the pulmonary area doesn't make it P2. [unclear]

00:23:17Her question is: can you get A2 in the pulmonary area?

00:23:22CandidateYes, sir, in TGA.

00:23:22FacultyCan you get A2 in the pulmonary area? Yes. [unclear] in CCTGA.

00:23:31CandidateThere are also visible pulsations in the left second intercostal space, and there is also a palpable second sound in the second intercostal space.

00:23:36FacultyAnd you can tell that depending on the company it keeps, based on the other history and examination findings [unclear]. Not now.

00:23:51CandidateSo there are pulsations in the second intercostal space, and a palpable S2, also visible [unclear].

00:24:01Coming to percussion, sir: the left heart border is along the apex, and the right heart border is retrosternal. The left second intercostal space is dull. The hepatic dullness is in the right 5th intercostal space, and stomach tympany is in the left [unclear] intercostal space. On auscultation, S1 is of normal intensity and S2 is loud. A single P2 is heard, sir, and it is loud. There is a single S2, a single sound, sir, and that is P2. A single, loud P2 is heard, sir.

00:24:39FacultyHow do you know it is P2 and not...?

00:24:51What happened to A2, then? You're saying there's only a pulmonary component; then what happened to the aortic component?

00:25:00CandidateSir, it would have become single, sir.

00:25:03FacultyPardon?

00:25:03CandidateIt has become single, sir.

00:25:07FacultyDo you say P2, or an isolated P2? You said single P2.

00:25:13CandidateThe single sound, yes, second sound.

00:25:13FacultyWhen you say P2 is loud, what are the defining criteria?

00:25:16CandidateIf I am able to hear P2 with the same intensity in the right second intercostal space, and I am able to hear it with good intensity at the apex also, sir, I take it as a loud P2.

00:25:29FacultyThat's all. At your apex, as well as the second intercostal space, at a similar intensity to A2 [unclear].

00:25:42CandidateAnd on auscultation, sir, S1 [unclear], S2 [unclear]. Loud at the apex, but there is no [unclear], due to pulmonary dilation, sir [unclear].

00:26:10FacultyASD is a condition where you can get a loud P2 at the apex but there is no PH. Why is P2 loud at the apex in ASD?

00:26:26CandidateThe RV is dominant, so all right ventricular events will be heard at the apex very well [unclear]. And P2 is loud [unclear]; pulmonary elasticity is increased, so pulmonary valve closure is very brisk even though there is no PH. It is because of increased flow, sir.

00:26:52And on auscultation there is also a high-intensity ejection click, a vascular ejection click, heard in the left second intercostal space, sir, and it is [unclear] phasic, non-phasic.

00:27:11FacultyWhere do you get a phasic click?

00:27:11CandidateA click is in valvular PS.

00:27:18FacultyWhat is phasic? She is asking.

00:27:18CandidateYes, sir. If the person is in deep inspiration, sir, the click will be reduced; that is [unclear]. If it is due to PH, there will be a more accentuated [click], sir.

00:27:34FacultyNo: phasic or non-phasic, she is asking.

00:27:37CandidateIt is non-phasic, sir. And there is also a harsh pansystolic murmur in the left lower [sternal border], in the left 4th intercostal space, which increases with respiration, with a grade of 3/6.

00:27:57It increases with inspiration, grade 3/6. And there is also a blowing early diastolic murmur of grade 2/4 heard in the left second intercostal space.

00:28:10FacultyYes, these murmurs I want to hear. What is blowing? What?

00:28:16CandidateEarly diastolic, blowing, in the left second intercostal space, sir. PR.

00:28:28So I would like to summarise. My diagnosis: situs solitus, levocardia, congenital heart disease with reduced Qp physiology as of now, with Eisenmenger, post-tricuspid, probably at the ventricular level, with severe PAH, no PVH, normal LV function and normal RV function, in normal sinus rhythm, with no signs of infective endocarditis and no signs of heart failure, in NYHA class 2, sir.

00:28:59FacultyYou said the JVP is elevated.

00:29:05CandidateYes, sir, the JVP is elevated, sir, but there is no heart failure.

00:29:10FacultyYou got an a wave?

00:29:10CandidateYes, a wave. The a wave is prominent, sir.

00:29:15FacultyNo, you said the JVP is elevated, not just the a wave. You said it's 5 centimetres.

00:29:15CandidateYes, sir.

00:29:15Faculty5 centimetres, that's elevated. Let me clarify: is the JVP elevated, or is it a prominent a wave?

00:29:24CandidateA prominent a wave, yes, sir. And I was able to see it up to 5 centimetres [unclear]. And also the a wave is prominent, sir; it could be due to PH.

00:29:39FacultyNo. Due to PH, without heart failure, how can you get [it]? No, then what's your concept of heart failure? PH without heart failure: can you get elevation of mean JVP? We are not talking about prominent a waves; we are talking about elevation of the mean JVP, which is what you presented.

00:30:00CandidateYes, sir, there will be elevation of the JVP in heart failure, sir.

00:30:03FacultyThen you will have to say it is incipient heart failure, or you will have to qualify it, but you can't say no heart failure. Heart failure is present. You have heart failure with preserved ejection fraction, reduced [ejection fraction]. What ultimately determines heart failure is elevated filling pressure.

00:30:22CandidateYes, right.

00:30:22FacultyFilling pressure is in the ventricle. If it's high, that's right.

00:30:37PH with reversal. And always present it like that. Don't present it as Eisenmenger; it is very difficult in Eisenmenger. If you read Paul Wood, he will say that it is very difficult to locate the level of the shunt, even with autopsies. Sometimes you have to take recourse [unclear]. So always present it as severe pulmonary hypertension. If there is [unclear], you can say [it]; if there is pulmonary regurgitation [unclear].

00:31:12One small question: what is the skin sign of an intermittent right-to-left shunt? What is the skin sign of an intermittent right-to-left shunt? What will be the skin sign, especially in a fair person?

00:31:34CandidateIt is a bluish hue.

00:31:34FacultyNo, it's called [unclear], in the fingers. It is supposed to be fine, especially lace-like [unclear].

00:31:49AudienceSir, [unclear]. I don't think that goes in favour of VSD.

00:32:06UnclearSingle-ventricle failure, sir [unclear].

00:32:10FacultySo you are considering Eisenmenger VSD, right?

00:32:10CandidateYes, sir.

00:32:13FacultySo what are the points in favour from your examination, and what are the points against that diagnosis of Eisenmenger VSD?

00:32:18CandidateThe points favouring Eisenmenger VSD: there is no cardiomegaly, that is, the heart is small, and there is an RV type of apex. Along with that, there is a single P2 sound, sir, and along with that PR is there, sir.

00:32:35FacultySo all Eisenmenger VSDs will have a single second heart sound?

00:32:35CandidateYes, sir.

00:32:40FacultyWhat happens with ASD?

00:32:40CandidateThere will be persistence of wide, fixed splitting of S2.

00:32:49FacultySo the presence of a single second heart sound can favour VSD [unclear], but its absence will not rule it out in most scenarios. Okay, so the PR murmur which you have here?

00:32:57CandidateYes, sir. They will have an associated narrowly split S2, sir. And along with that there will be a dilated aorta [unclear], and a more predominant PR is seen in [unclear].

00:33:12FacultyYes, absent pulmonary valve. In this case you are getting a clear murmur. Why not absent pulmonary valve? With absent pulmonary valve, why not?

00:33:17CandidateSir, if absent pulmonary valve were present, on examination there would be a to-and-fro murmur, sir. But in this case there is only an early diastolic murmur, sir. So I think [unclear]. And on history, there will also be recurrent respiratory tract infections, sir, but this patient is not having respiratory tract infections.

00:33:36FacultyNo, you can have [unclear].

00:33:41CandidateYes, sir.

00:33:41FacultyWhat apex do you get?

00:33:45CandidateIn both cases, an RV type of apex, sir: in absent pulmonary valve as well as [unclear], an RV type of apex.

00:33:58FacultyWhy do you get recurrent respiratory infections? You said that's a feature.

00:34:02CandidateYes, sir. Because there will be aneurysmal dilatation of the pulmonary arteries, which will cause obstruction of the bronchi, causing atelectasis and leading to infections.

00:34:14FacultyCould it be truncus?

00:34:14CandidateTruncus, sir: they usually present with cyanosis at birth only, sir; early onset of cyanosis will be there.

00:34:25FacultyNo, at birth it may be very minimal, minimal cyanosis may be there, and they develop Eisenmenger early [unclear].

00:34:33CandidateYes. Early age of cyanosis and early age of Eisenmenger is the picture of truncus, and prominent cyanosis.

00:34:47FacultyWhat are Eisenmenger syndrome and Eisenmenger complex? Is there any difference?

00:34:47CandidateYes. Eisenmenger complex is when the rise in RV pressure and PA pressure is more than the LV pressure, in the case of a VSD, sir, and there is shifting to a right-to-left shunt; in the case of VSD it is called Eisenmenger complex. Eisenmenger syndrome occurs due to defects apart from VSD, like PDA or ASD, or it could be due to an AP window.

00:35:21FacultyYes. Can multiple branch pulmonary stenoses behave as PH?

00:35:32CandidateYes, sir. In supravalvular PS, in Williams syndrome, there will be branch pulmonary stenosis [unclear]. Sorry, sir, what was the question?

00:35:43FacultyCan multiple branch pulmonary stenoses behave like PH, like PH at the ventricular level, not at the pulmonary [unclear]?

00:35:58Yes. What I was asking you, what I told you: no examiner wants one diagnosis. We don't want one diagnosis. You have to discuss. So why is it VSD, PDA? Why not ASD, the other diagnoses? [unclear] You will be in trouble. [unclear, partly in Hindi] So discuss.

00:36:30You also want to spend one hour, so we also need some discussion points. Otherwise, if you say VSD Eisenmenger, in 15 minutes we can get over. So we need some conversation points.

00:36:43Got it. What do you want, ECG or X-ray first?

00:36:43CandidateSir, I would go for X-ray, sir.

00:36:47FacultyWhy X-ray, if hypothetically there's only one investigation that we can get?

00:36:57CandidateI would go for X-ray, sir. On X-ray I am able to differentiate ASD, VSD or PDA. Along with that, I can differentiate the reason behind the increase [unclear]. In case of ASD, ma'am, there will be persistence of cardiomegaly; in case of VSD there won't be cardiomegaly; and in case of PDA...

00:37:24FacultyASD, ASD: what else? In VSD you get no cardiomegaly; what else do you get?

00:37:27CandidateAlong with that, in ASD there will be associated dilatation of the RA, sir, and an RV type of apex. In VSD there won't be cardiomegaly, and there will be a dilated MPA, and along with that peripheral pruning; LA enlargement may be there. And in PDA, sir, there will be associated enlargement of the aorta, and there is loss of the aortopulmonary window, radiological loss of the aortopulmonary window.

00:38:02Sir, this is a chest X-ray, PA view, with [unclear] exposure, showing no cardiomegaly, with a CT ratio of less than 0.5, and an RV type of apex. Along with that, there is a dilated MPA, and there is peripheral pruning of the vasculature, sir. There is also a dilated RPA, and there are multiple end-on vessels, more than 5 on both sides combined. So this is suggestive of PAH.

00:38:32FacultyNo, I just want an answer from you. Why not [unclear]? [unclear, partly in Hindi] What do you think?

00:39:10Why do you say it is pruned? Because [unclear], it is not so emphatically pruned, let me put it. And what will happen to the vascular markings in an overexposed X-ray? Is this overexposed or appropriately exposed?

00:39:24CandidateOverexposed.

00:39:24FacultyWhat will happen to the vascular markings?

00:39:27CandidateA bit more enhanced.

00:39:29FacultyMore enhanced? No. The lungs get blackened out, and they are actually less seen. So that's why it should be appropriately exposed.

00:39:41Can you trace the right descending pulmonary artery, the RDPA? Can you just show it? Why is it important?

00:39:51CandidateSir, in scimitar syndrome you can see a sword-like thing.

00:39:56FacultyScimitar syndrome there. What is scimitar syndrome?

00:40:00CandidateScimitar syndrome is a partial anomalous pulmonary venous connection, sir, associated with right lung hypoplasia, where the pulmonary veins from the right lower side make a confluence and drain into the IVC, sir. So it looks like a sword.

00:40:20FacultyA Turkish sword, yes. So you see that the right descending pulmonary artery is seen much lower. Have you seen the pictures of that? The textbooks have shown that. It is sometimes associated with sequestration of the lung.

00:40:39How would you radiologically say that there is pruning or no pruning?

00:40:43CandidateIf there is pruning, in the distal, peripheral one-third there will not be much vasculature.

00:40:52FacultyAbrupt reduction in the calibre of the vessel by more than 50%. Abrupt change in calibre.

00:41:09CandidateDescending pulmonary [unclear]. The ascending [unclear] is not enlarged.

00:41:13Faculty[unclear] means the descending pulmonary artery, the right pulmonary artery.

00:41:18CandidateYes, sir, the pulmonary artery is enlarged. The right pulmonary artery is enlarged, and the left main pulmonary artery is also enlarged. [unclear] it is underexposed [unclear].

00:41:32FacultyThis is the one sign on the X-ray which can tell you that a VSD is likely to be present. Not 'likely': 100% present. X-ray signs [unclear].

00:42:01CandidateIn VSD it is about 67% only, ma'am, but in TOF, right aortic arch [unclear].

00:42:08FacultyYou tell the diagnosis: right aortic arch with plethora, and right aortic arch with pulmonary oligemia. What are the diagnoses?

00:42:18CandidateYes, sir. For a right aortic arch with pulmonary oligemia, I will go for TOF physiology, sir; and for a right-sided aortic arch with plethora, VSD, sir, truncus.

00:42:38FacultyWant to see the ECG? We are running short of time.

00:42:49CandidateSir, the ECG shows a rate of 100 beats per minute, with right axis deviation of about plus [unclear] degrees, and there is prominence of the R wave compared to the S wave in V1, suggestive of RVH.

00:43:13FacultyThank you. Want to comment on right atrial and left atrial abnormality? Right atrial abnormality?

00:43:23CandidateThe initial force of the P wave in V1 is more than one small box, so I think of right atrial enlargement.

00:43:27FacultyThis is half standard. This is half standard. In V1 or V2, how tall should the initial positive vector be for right atrial enlargement?

00:43:44CandidateOne small box, sir.

00:43:44Faculty1.5, or the area; even that's mentioned.

00:43:53CandidateMore than one [unclear] small box.

00:43:56FacultyArea under the curve, just as you say for left atrial enlargement: the P terminal force. How will you diagnose left atrial enlargement based on the terminal vector in V1? What is the [unclear]?

00:44:12CandidateIf the terminal force of the P wave is more than one small box, call it left atrial enlargement.

00:44:17FacultyOne small box in which dimension?

00:44:25CandidateIt should be 0.04 in duration and one [unclear]...

00:44:29FacultyYes. So it is usually said more than 0.03 [unclear], in the old [unclear]. Similarly, that is the area subtended by it. Similarly, for the RA also it is there: 0.06, or 1.5 millimetres in height.

00:44:47Okay, what else is there? I think there's borderline left atrial enlargement based on this. The P terminal is actually more [unclear].

00:44:58CandidateBut there are no Q waves, sir, Q waves in the lateral leads.

00:45:02FacultyNo Q waves in the lateral leads. Why do you expect Q waves?

00:45:06CandidateNo, in [cases where] there is left ventricular enlargement, LV dilatation.

00:45:10FacultyWill we expect that in Eisenmenger VSD? Do you expect that?

00:45:13CandidateNo.

00:45:13FacultyPlease don't say it is not there because you are not expecting it in Eisenmenger VSD. Do you have LV dilatation? The first thing is to describe the findings correctly; then we look for an explanation. You can't say a finding is not there because you can't explain it. That's not the way it works.

00:45:32Do we have an echo? What's the Katz–Wachtel phenomenon?

00:45:35CandidateThe Katz–Wachtel phenomenon is in V2, V3, V4, sir: if the R wave plus the S wave is more than 50 millimetres, it indicates biventricular hypertrophy.

00:45:52So this is a PLAX view showing a large perimembranous VSD with muscular extension, with a bidirectional shunt: a non-restrictive VSD, sir.

00:46:07This is a short-axis view showing dilation of the RV and the RVOT.

00:46:19This is a short-axis view at the aortic level, showing the large non-restrictive VSD with a bidirectional shunt. And then also PR is there.

00:46:46FacultyWhat was the PR? Was it severe PR or non-severe?

00:47:03Unclear[unclear, in Hindi]

00:47:06CandidateSo it shows [unclear] PH.

00:47:19Here they are showing the mean PA pressure as 31.

00:47:23FacultyWhat is taken now?

00:47:23CandidateIt is showing a mean PA pressure of 30.

00:47:31FacultySo you have the right atrial pressure from your JVP, and you have the mean pulmonary artery [gradient] from the early PR gradient [unclear]. You have to be more objective and tell.

00:47:40CandidateSo it will come to 40, sir. [unclear] about 8, sir, approximately the RA pressure. So 31 means about [unclear], up to 40, sir.

00:47:53FacultyI feel the mean PA pressure is around 40. Is that consistent with the diagnosis of Eisenmenger?

00:48:02CandidateThe mean PA pressure should be more than 50, sir, actually, for severe PH, for Eisenmenger. More than severe PH will be there.

00:48:07FacultyHow do you define Eisenmenger? Do you know how Paul Wood described it? Anybody?

00:48:16CandidateSir, if severe PH causes a right-to-left shunt, resulting in cyanosis.

00:48:21FacultySo the PA pressure will be at what level?

00:48:21CandidateMore than 50, sir.

00:48:26FacultyIf his PA pressure is 50 and there's a non-restrictive VSD, what is the aortic pressure?

00:48:45CandidateThat's difficult.

00:48:45FacultyOkay. The PA pressure is 50. Okay? Let's say the systolic is 60 or something like that. What is the RV pressure?

00:48:55CandidateIt will be similar, sir.

00:48:55FacultyWhat is the LV pressure?

00:48:59CandidateSimilar, sir.

00:48:59FacultyWhat is the aortic pressure?

00:48:59CandidateSimilar.

00:49:04FacultyFor the aorta, there is no AS. So do you think that is 40? Unless there is pulmonary stenosis, can his [unclear] pressure be 100, and 30 or 40 [unclear]? Do you think that is possible? It is not consistent with your diagnosis at all. It has to be at systemic level.

00:49:33Good presentation. You can be a little slower; sometimes you go a little fast. Yes, good. More than anything else, I appreciate the fact that you had the courage to come up and present. This is what should really be appreciated, and all of you should do it. You are not here to impress me, or the other examiners, or anybody else, or your colleagues. You are here to pass the exam, that's all.

00:49:55When he makes a mistake, you may not remember it tomorrow. When you make a mistake, you'll remember each and every mistake, and you'll never do it again. So whatever your level of knowledge or ignorance, don't feel bad, and don't feel hesitant to come up, present and make mistakes. The more mistakes you make on stage, the more all of you will learn from it. So please take every opportunity, today and tomorrow, to come up and present.

00:50:27CandidateThank you, sir.

00:50:27FacultyYes, thank you. A comment on the previous case as well as this case. I think the JVP presentation needs to be sharper. The JVP is normally presented in 3 different parts: the mean JVP, the positive waves and the descents. You must include all 3 in the JVP. Even in the previous case it was a bit deficient, and even here you could have been sharper.

00:50:54The second thing is the X-ray description. Traditionally you start with the right heart border, the left heart border, and the peripheral pulmonary venous and pulmonary arterial [vasculature]. Please stick to that. Don't jump from one place to the other.

00:51:06The third thing is that eventually all exams are a series of questions, right? So you need to anticipate the series, and you should be able to quote one text for your answer. Loud S1: what is the definition? Soft S1: what is the definition? There will be huge interpersonal variations, but you should be able to speak by quoting just one text, whether you quote Hutchison, Paul Wood or Braunwald; you should be able to quote one. And I can assure you, the variations of heart sounds and murmurs cannot be more than 100-plus. But you need to anticipate these.

00:51:53And as the other examiner said (he's not here now), we are eventually here to discuss. We are here to identify whether you have understood the science behind it. Okay, all the best. Thank you.

05

Day 1 · 17-Oct-2026 · 11:43 hrs · 1 h 10 min

Aortic Outflow Obstruction Case Discussion

  • Supravalvar aortic stenosis
  • Coarctation of aorta
  • Angina history
  • Peripheral pulmonary artery stenosis
  • Takayasu arteritis
  • Bedside examination
  • ECG and chest X-ray
  • Coanda effect

This long case concerned a 33-year-old man with exertional chest pain since early adolescence, a balloon-based intervention with stenting at 15 years of age followed by 10 years of relief, and recurrence of angina leading to admission for open heart surgery. The candidate proposed severe valvar aortic stenosis due to a bicuspid aortic valve with possible prior coarctation stenting; the examiners questioned the absence of hypertension, ejection click and ascending aortic dilatation, the single second heart sound and the unexplained weaker right radial and brachial pulses, and repeatedly cautioned against changing findings to fit a diagnosis. Review of the ECG, chest X-ray (bilateral pulmonary artery stents), echocardiogram and CT led to supravalvar aortic stenosis with bilateral branch pulmonary artery stenosis, enlarged coronary arteries and left common carotid ostial stenosis, with aortoarteritis and right subclavian or innominate involvement raised as unresolved questions. Teaching covered the angina history, coarctation, the abdominojugular test, rib notching and the 3 sign, and the Coanda effect.

Case
33-year-old man from Odisha, educated to 10th standard, unemployed; typical exertional chest pain (NYHA class 2) since age 13; balloon-based intervention with stenting at age 15 with 10 years of relief; recurrence of angina from 2020; on aspirin; no history of hypertension; admitted for planned open heart surgery.
Diagnosis discussed
Supravalvar aortic stenosis with bilateral branch pulmonary artery (LPA and RPA) stenosis, previously stented, with enlarged coronary arteries and ostial stenosis of the left common carotid artery; CT had queried aortoarteritis and right subclavian or innominate involvement was suspected but not established. (The candidate's diagnosis had been severe valvar aortic stenosis, likely bicuspid, with possible prior coarctation stenting.)

Teaching points

  1. Angina is a clinical diagnosis and a typical history has a strong positive predictive value; describe site, character, radiation, precipitating and relieving factors separately, and ask how quickly it is relieved (typically within about 5 minutes of rest).
  2. The typical/atypical/non-anginal chest pain classification is discouraged in recent guidelines but retained in the 2026 Braunwald; in an exam, quote your reference.
  3. In a teenager with anginal chest pain, consider LVOT and RVOT obstruction, premature coronary disease (familial hypercholesterolemia), inflammatory coronary disease including late Kawasaki sequelae, and coronary anomalies with an interarterial or intramural course.
  4. Coronary involvement with LV outflow obstruction occurs in supravalvar aortic stenosis (ostial lesions), familial hypercholesterolemia, coarctation (premature coronary disease) and Takayasu arteritis.
  5. Hypertension in coarctation has mechanical, neural (baroreceptor resetting) and renal (RAAS) mechanisms; it persists in 30 to 50% after repair, more often with later repair or a residual gradient above 10 mmHg.
  6. Never change a clinical finding to fit a diagnosis; in an exam, an examiner asking you to go back and check is a cue to re-examine, not an attempt to mislead.
  7. Before calling S2 single, listen in inspiration and expiration and at more than one site, and be ready to explain it (paradoxical splitting in severe AS, murmur masking, a soft component, or a thick chest wall, COPD or obesity).
  8. Preserved A2 with no ejection click argues against valvar aortic stenosis; with unequal upper-limb pulses, think of supravalvar aortic stenosis. Discrete subaortic stenosis usually has associated AR.
  9. With unequal pulses, perform a systematic vascular examination from the superficial temporal to the popliteal, listen for bruits over the carotids, femorals and back, auscultate the back down to the infrascapular region, and examine the fundus.
  10. Rib notching involves the lower borders of the 3rd to 8th ribs, because the first two intercostal spaces are supplied by the superior intercostal artery from the costocervical trunk; the 3 sign on X-ray corresponds to the reverse 3 (E) sign on barium swallow.
Edited transcript 379 paragraphs · 8,329 words

00:00:04CandidateGood morning. My patient is a 33-year-old male, a resident of Odisha.

00:00:09FacultyOne minute. Be clear, and a little slow.

00:00:16CandidateThe patient is a 33-year-old male, a resident of Odisha, with formal education till 10th standard, currently unemployed, who presented with complaints of chest pain for the past 20 years. The patient was apparently asymptomatic until he developed chest pain on exertion, starting at around 13 years of age. He had typical chest pain; that is, he used to have chest pain while running, while bicycling and on walking around 2 kilometres, amounting to NYHA class 2. He did not have any shortness of breath, presyncope or syncope at that time. He consulted a heart specialist in Odisha.

00:00:55FacultySo you are done with chest pain? That is all you have said? See, angina is a clinical diagnosis. It is not a diagnosis you make on ECG, echo or a stress test, right? And if you get a history of typical angina, it has a very strong positive predictive value. So we expect you to say that it is the first symptom, and probably the only presenting complaint. You need to spend more time on the chest pain. What are all the things you will describe? The character of the pain?

00:01:31CandidateSir, the location was central, retrosternal, radiating to both shoulders. It increased on exertion and was relieved with rest. Usually, after exerting for 2 kilometres while walking or bicycling, he would have the pain.

00:01:46FacultyYou should also ask, though it is not always mentioned in books, how quickly does it reduce?

00:01:52CandidateWithin 5 to 10 minutes.

00:01:52FacultyUsually it lasts only 2 to 5 minutes. Sometimes patients say they get pain on exertion, maybe because they are doing something heavy with their hands, and it reduces after half an hour or one hour. That is not relief with rest. So please ask about that also: is it relieved within 5 minutes of taking rest?

00:02:11CandidateIt reduces.

00:02:11FacultyWhat else do you ask about when you describe the character of the pain?

00:02:19CandidateWe have the retrosternal location, the site of the pain.

00:02:23FacultyWhat is the character of the pain? What did he tell you?

00:02:23CandidateHe described it as a vague pain. He didn't describe any pricking or stabbing.

00:02:32FacultyDid you ask about the character? You must ask.

00:02:35CandidateHe said a vague pain, radiating to both shoulders.

00:02:35FacultyRadiation is one thing, character is another, so don't confuse the two, okay? And there is some confusion about this typical and atypical classification. That is based on the [year unclear] ACC/AHA guidelines, where they said they would like to discourage the use of it. Why? Because many of those with so-called atypical pain also tend to have ischemic heart disease. But if you look at the 2026 Braunwald, it is much broader. It says chest pain has three characteristics: retrosternal, what aggravates it, and what relieves it. And the latest Braunwald still says typical angina, atypical angina and non-anginal pain; that is there in the 2026 Braunwald.

00:03:31So I don't know whether we are ready to discard that. I personally like that classification, because I think it has huge value, as long as you realise that some patients with atypical or so-called non-anginal pain may still have coronary artery disease. But the guidelines say only...

00:03:52Yes, that was the 2021 [ACC/AHA, unclear] guidelines. The 2026 Braunwald is still mentioning it.

00:03:57UnclearBraunwald is quoting from the old reference.

00:03:57FacultyNo, 2026 has just come out. The most recent is probably acceptable. Okay, fine, it is acceptable.

00:04:13So all I am saying is that it is still a debatable point. I don't know whether we are ready to discard that classification as of now. The important thing is that in exams you need to have a reference, right? 'This book says this' or 'this guideline says this'; generally the examiner will then accept it. So be sure of your reference. But whatever it is, you should put it in the terms he described: the precipitating factor and the relieving factor. As I told you, keep that in mind always. Why only angina? For any pain: precipitating factor, relieving factor, all of that. Keep it.

00:04:55CandidateWith this complaint, he consulted a heart specialist in Odisha, and upon evaluation he was told he had a heart condition, for which he was referred to Bangalore, here at Sathya Sai. That was at the age of 15 years, 2 years after the onset of his symptoms. He was admitted here and underwent a balloon-based intervention via the right groin along with stenting, and he was started on one tablet, which he said was Ecosprin 75 mg once daily, which he continued.

00:05:24FacultySo at this point, what's your diagnosis?

00:05:27CandidateA balloon-based intervention at the age of 15 years, with stenting; he mentioned stenting, and he says he was started on Ecosprin 75. If stenting were not mentioned, one possibility would be balloon aortic valvotomy for aortic stenosis; then coarctation.

00:05:49FacultyIs that commonly done for aortic stenosis?

00:05:53CandidateBalloon aortic valvotomy, in children. Then balloon pulmonary valvotomy for PS.

00:05:53FacultyYes. Can that produce angina?

00:05:53CandidateIt can produce angina, with RVH.

00:06:00FacultyYes, it can.

00:06:06CandidateThen balloon mitral valvotomy for mitral stenosis.

00:06:10FacultyNo, but that will not present with chest pain. It is very clearly anginal chest pain; we are talking of anginal chest pain. Any other procedure? Okay, forget the procedure. A 13-year-old boy complains of anginal chest pain. What are the conditions you will think of?

00:06:33CandidateRVOT and LVOT obstructions are the main ones.

00:06:33FacultyAnything else?

00:06:38CandidateCoronary artery disease you have to consider.

00:06:41FacultyThird possibility? Louder.

00:06:45CandidateCoronary artery disease would be the third possibility.

00:06:45FacultyYou already mentioned that. Anything else? Any inflammatory disease involving the coronary arteries?

00:06:52CandidateInflammatory disease involving the coronary arteries that happened in the past. Younger patients can present with coronary artery involvement.

00:06:59FacultyAnything else?

00:07:03CandidateKawasaki. Can they present with aneurysms and stenosis?

00:07:03FacultyBefore 12, yes, but it could be the aftermath. It could be a late presentation. Though the most characteristic lesion is the aneurysm, stenosis is also described. What about coronary anomalies?

00:07:24CandidateCoronary anomalies can present. They can have an interarterial course, and on exertion they can develop symptoms, chest pain: a slit-like orifice with a long intramural course, and an interarterial course.

00:07:35FacultyWhy didn't you say it? [unclear] I get the marks, not you.

00:07:39CandidateBut for that, he would have been advised surgery.

00:07:42FacultyHere I am saying, if you discount the history of what he underwent, these are the possibilities you have to consider. So your primary thing is that he has coronary artery disease? That's your first diagnosis?

00:08:00CandidateNo, sir, LVOT. I am thinking of an LVOT obstruction with associated coarctation: LVOTO, bicuspid aortic valve with AS, which underwent balloon aortic valvotomy along with coarctation stenting; or pulmonary stenosis, peripheral pulmonary stenosis, for which they have done balloon angioplasty; or coronary artery disease.

00:08:20FacultyAt the age of 13 years, if there is familial hypercholesterolemia, they can present. Why can't that be one possibility? So after you take your history, you have so much time. There is one symptom. Sit and just think what questions the examiner might ask. There actually aren't that many; there are only a few. What are the conditions? Just sit and prepare. Spend a couple of minutes on that preparation, because ultimately for every question, 'can it be this, can it be that', the answer is just a matter of coming out with it. And if you come out with it, then you do well in the exam.

00:08:58If I have to ask you five questions to get that answer, you will go out saying that you gave all the right answers, but we won't be thinking so. I had to drag the answer out of you painfully; it should come easily from yourself. Continue.

00:09:16CandidatePost procedure, there was complete relief of his symptoms and he remained asymptomatic, that is NYHA functional class 1, for the next 10 years. In 2020 he again developed class 2 exertional chest pain of the same character, for which he underwent an angiogram in Odisha, again via the right groin, and he was then told to consult here again for open heart surgery. Currently he is admitted for the open heart surgery.

00:09:45He has no history of shortness of breath, presyncope or syncope; no history of claudication, palpitations or fatigue; no history of ankle edema; no history suggestive of systemic embolism or stroke; no history of joint pain, fever or monthly intramuscular injections; no history of prolonged fever requiring IV medications; and no history of bluish discoloration of the skin, recurrent LRTI or failure to thrive in childhood.

00:10:14Medication history: he has been prescribed Ecosprin 75 once daily, which he is still continuing. There are no hospitalizations other than these, and no other comorbidities. His development is normal. He was born of a non-consanguineous marriage. He has no siblings. His schooling was normal; he was formally educated till the age of 15 years, that is, he completed 10th standard. No family history of cardiac disease. He consumes a mixed diet; his appetite is normal.

00:10:57FacultyFamily history: you asked? There is nobody?

00:10:57CandidateNo, he is the only child; he has no siblings. In both parents, and even their first-degree relatives, there is no cardiac disease.

00:11:03FacultyYes, up to first-degree relatives: parents, siblings, and up to first cousins you can ask. Check with them.

00:11:14CandidatePersonal history: he consumes a mixed diet. His appetite is normal, sleep is not disturbed, and bowel and bladder habits are regular.

00:11:22FacultyAny history of hypertension there?

00:11:22CandidateNo, sir. He has not been diagnosed with hypertension.

00:11:25FacultyYou asked about hypertension?

00:11:25CandidateYes, I asked about hypertension. There is no history of hypertension, and he was prescribed only [unclear].

00:11:34FacultyRight, correct. Okay, so which conditions can cause coronary artery involvement in relation to LVOT obstruction?

00:11:45CandidateSupravalvar AS can present with coronary involvement. In supravalvar aortic stenosis they can have ostial lesions and skip lesions. Even familial hypercholesterolemia: they can present with valvular as well as supravalvar stenosis, and coronary artery disease.

00:12:06FacultyFamilial hypercholesterolemia, yes.

00:12:11CandidateAnd coarctation of aorta: coronary involvement, yes. Premature coronary disease occurs, in part because of systemic hypertension. Takayasu can present with aortic ostial lesions, skip lesions and coronary involvement.

00:12:30FacultyOkay, so LVOT obstruction can occur? [unclear] But again, there also you can get ostial involvement of the coronary artery, and regurgitation.

00:12:52CandidateA 33-year-old male with NYHA class 2 typical angina for the past 20 years, who underwent a balloon-based intervention with stenting via the right groin with complete relief of symptoms, currently on single antiplatelet therapy with aspirin, now again presenting with recurrence of angina of the same character for the past 6 years, and planned for open heart surgery.

00:13:16My first differential: congenital heart disease, LV outflow tract obstruction, likely a bicuspid aortic valve with coarctation of aorta, which underwent balloon valvotomy with coarctation stenting. Second differential: RV outflow tract obstruction, likely pulmonary stenosis, which underwent stenting for the same. Third differential: peripheral pulmonary stenosis, with stenting for the peripheral pulmonary stenosis.

00:13:45FacultyWhy do you mention stenting? Why do you mention it from the history?

00:13:50CandidateThe patient told me about a stent, sir. The patient said balloon with stent.

00:13:54FacultyHe is telling that, and he is on Ecosprin; all these three things.

00:14:01CandidateTypical angina, class 2, which was completely relieved after the procedure for 10 years, and then recurrence of symptoms.

00:14:12FacultyThe first procedure was at what age?

00:14:12CandidateAt the age of 15, sir.

00:14:16FacultyAt 13 he had angina; for 2 years he had symptoms; at 15 he underwent the procedure. How many years back?

00:14:20Candidate11 years back.

00:14:25FacultyHow many years back was the procedure done?

00:14:25Candidate17 years... 18 years back.

00:14:29FacultyHe is currently 33, so 18 years back.

00:14:36The third differential would be what? Any other details?

00:14:41CandidateFamilial hypercholesterolemia.

00:14:41FacultyOkay, what is against your first diagnosis? Could it be a case of aortic disease with pulmonary branch stenting done? Or was it part of the systemic circulation where stenting was done? [unclear]

00:14:56CandidateAt the age of 13 years, angina, which was relieved. Could it be pulmonary branch stenosis? I am thinking of balloon aortic valvotomy for aortic stenosis, which was severe and likely the cause of his complaints, and along with that he might have had a coarctation of aorta, for which they did coarctation stenting. Otherwise, the second differential is peripheral pulmonary stenosis presenting with angina, for which he underwent a stent.

00:15:17FacultyYes. Okay, so what is against your diagnosis of coarctation in this patient?

00:15:24CandidateHypertension. There is no hypertension.

00:15:24FacultyWhat are the causes of hypertension in coarctation?

00:15:33CandidateThere are three mechanisms, sir: mechanical, neural and renal. Mechanical is because of the obstruction causing the increase in pressures. In the neural mechanism, the baroreceptors get reset. And the renal mechanism is because of renal hypoperfusion: there can be RAAS activation, that is, activation of the renin-angiotensin-aldosterone axis because of renal hypoperfusion.

00:16:09FacultyIn what proportion of cases does hypertension persist after coarctation intervention? What are the predictors?

00:16:13CandidateSir, one is that if they present at an older age, they are likely to have persistent hypertension. If coarctoplasty or coarctation repair is done at a younger age, the hypertension may resolve. 30 to 50% of patients post coarctation repair will have persistent hypertension. If the gradient is more than 10 mmHg post coarctation intervention, the patient may develop [unclear] hypertension.

00:16:50FacultyWhat is the natural history of coarctation of aorta? How do these people present?

00:16:54CandidateOne presentation is hypertension, in which coarctation of aorta is incidentally detected.

00:17:03FacultyHow does a patient with coarctation present? When can they present?

00:17:07CandidateIn infancy they can present with heart failure; that is the infantile type. In the pediatric population they can present with hypertension or limb claudication. Adults also usually present with limb claudication. They can even present with subarachnoid hemorrhage because of berry aneurysm.

00:17:24FacultyWhat is the type of coarctation in the infantile type, and what is the presentation?

00:17:29CandidateDiffuse type. The arch will also be hypoplastic.

00:17:35FacultyHypoplastic, no. Is it preductal, postductal or juxtaductal, in the infantile type?

00:17:44CandidateThe preductal type is the commonest one in the infantile type.

00:17:50FacultyRight. And what is the presentation there? How do they present?

00:17:53CandidateSudden onset of breathlessness and heart failure that needs to be treated in the neonatal period; it can also present in children.

00:18:03FacultyAnd then in adulthood, you are thinking in terms of the adult type, the adolescent type of presentation. So what is the natural history of an adolescent who presents with coarctation?

00:18:15CandidateBP may persist in 30 to 50% of cases even after repair. The natural history without repair: one is systemic hypertension. They can have accelerated atherosclerosis because of that, and they can have coronary events and stroke. They can also have berry aneurysms, which can rupture and present with subarachnoid hemorrhage, vascular presentations.

00:18:35FacultyOkay, fine. There is a bimodal presentation [unclear].

00:18:43CandidateBimodal presentation of heart failure: heart failure in infants when the ductus closes [unclear]. Usually it doesn't happen before 40 years; beyond 40 years, patients develop heart failure. Other complications, as I told: hemorrhage from an aneurysm, aortic dissection can occur, AR, that is aortic incompetence, develops, premature coronary atherosclerosis, and infective endarteritis.

00:19:18FacultyYes. So these are the complications of coarctation. So what is the condition which presents with heart failure in the first year or very early infancy, in the presence of LV outflow obstruction? What is the condition which presents with heart failure in infancy or early childhood in patients with, say, aortic stenosis or coarctation of aorta?

00:19:43CandidateEarly... a unicuspid aortic valve will present.

00:19:49FacultyWhat happens in the left ventricle? It can happen even in adults with severe hypertension later on, and cause heart failure. Have you heard of it?

00:20:07CandidateSubendocardial fibroelastosis. Sir, there are two types: one is primary and the second is secondary. Secondary can occur due to coarctation of aorta.

00:20:17FacultyPrimary: initially it used to be an MCQ in all the entrance exams, where it was attributed to mumps virus [unclear]. But that is no longer true; it has not been found to be true that it is related to mumps virus infection. But there is primary subendocardial fibroelastosis and secondary subendocardial fibroelastosis.

00:20:42CandidateSo my differential diagnosis is either LVOT obstruction or RVOT obstruction, or coronary artery disease secondary to familial hypercholesterolemia, although he has not been prescribed high-intensity [statin]. He has not been prescribed a statin; that is why.

00:21:02FacultyOkay. Go ahead.

00:21:05CandidateThe patient is cooperative and oriented to time, place and person. Height 164 centimetres, weight 45 kg; BMI is 16.7, underweight. No pallor, icterus, cyanosis, clubbing, lymphadenopathy or pedal edema. Saturation on room air is 98%. There is no exertional desaturation. Temperature is normal. He had syndromic facial features in the form of a broad forehead, crowding of teeth and a large, wide mouth.

00:21:38Pulse rate 80 per minute, regular, low volume, late peaking; no radio-radial or radio-femoral delay. All the peripheral pulses are well felt. Bilaterally, the right radial and left radial are the same... The right radial pulse is a little more feeble than the left radial.

00:21:56FacultyI thought you just now said that all the peripheral pulses are the same?

00:22:01CandidateI said all peripheral pulses are felt, but there is a difference.

00:22:08FacultyAnd the carotid is not a peripheral pulse; it is a central pulse.

00:22:08CandidateThey are felt, sir. There is no loss of pulses.

00:22:12FacultyNo, you said all pulses are the same. Didn't you say that all peripheral pulses...?

00:22:20CandidateAll peripheral pulses are felt.

00:22:20FacultyThere is a very definite difference in the upper limb pulses versus the lower limb pulses.

00:22:27CandidateEspecially the right side. The right side is less compared to the left side.

00:22:30FacultyDid you feel the brachial? Is the brachial also weak?

00:22:34CandidateYes, the right brachial is also... It is feeble compared to the left side.

00:22:37FacultyYes, that's an important point, isn't it? Okay. Which pulse will you feel to see the character of the pulse?

00:22:46CandidateCarotids.

00:22:49FacultyDoes the radial give you any character? You can feel the radial and tell us what type of pulse?

00:22:54CandidateCollapsing pulse.

00:22:57FacultyYou feel that everywhere. But specifically, which pulse is better felt in the radial? What is that pulse?

00:23:09CandidatePulsus alternans.

00:23:09FacultySo pulsus alternans is one which is better felt in the radial; the others are better felt in the carotids. But this difference is there: yes, the right pulse is weaker.

00:23:20CandidatePulsus paradoxus also.

00:23:31FacultyParadoxus, yes. Where do you get pulsus alternans?

00:23:31CandidateLV dysfunction, severe LV dysfunction: alternating strong and weak beats.

00:23:42There is a bilateral carotid shudder with thrill.

00:23:42FacultyOkay, good.

00:23:50CandidateBlood pressure in the right upper limb is 96/80 and in the left upper limb 100/80. Lower limb systolic BP is 120.

00:24:03FacultyWhy is lower limb blood pressure higher than upper limb blood pressure in many patients, even normal ones?

00:24:08CandidateSphygmomanometric artefact, because of the bulk of the muscle.

00:24:14FacultyOkay, so supposing you use an adequately sized cuff, you still can sometimes get a higher pressure in the lower limbs.

00:24:25CandidateDirect continuation of the aorta. Also, the bulk of the muscle is more in the lower limb.

00:24:36If we measure intra-arterial BP, it will be the same.

00:24:45FacultyOkay.

00:24:45CandidateBut sometimes the femoral artery pulse waveform is different, from the summation of the reflected waves.

00:24:52FacultyI don't understand. [unclear]

00:24:58CandidateCentral BP is usually lower than the peripheral BP, because there is summation of the reflected waves, which can cause peripheral augmentation of BP.

00:25:06FacultyIf the peripheral pressure is higher, blood should flow from the periphery to the centre. Blood always flows down a gradient, right, like water. So why is it that if the lower limb pressure is higher than the upper limb, blood still flows from up here to down there?

00:25:30CandidateMean pressure.

00:25:30FacultyYes, the underlying mean pressure. So peripheral augmentation, summation of the tidal wave and so on. So you often get a higher pressure; even in the cath lab you can see it when you take a withdrawal from central to periphery. Yes, go ahead.

00:25:55CandidateJVP was not elevated, with normal waveforms, normal hepatojugular reflux and normal respiratory variation.

00:26:04FacultyIs it hepatojugular or abdominojugular?

00:26:08CandidateAbdominojugular is what is preferred now. Previously they described right upper quadrant pressure over the liver, but now it is replaced with the term abdominojugular, because even pressure over the abdomen, increasing the intra-abdominal pressure and compressing the IVC, can produce it.

00:26:24FacultyI think even the most recent Braunwald says abdominojugular reflux: pressure over the abdomen, but preferably the right hypochondrium. So that's not wrong; you can use both. Reflex or reflux? Reflux. All right, good. So if it is positive and there is not much RV involvement, what will the LA pressure be?

00:26:47CandidateThe LA pressure will be 15.

00:26:56There are no peripheral stigmata of infective endocarditis or acute rheumatic fever.

00:27:00FacultyWhat?

00:27:00CandidateNo peripheral stigmata of IE or acute rheumatic fever. Also, no features of familial [hypercholesterolemia]...

00:27:03FacultyTalk a little clearly, a little clearly, for us to understand. [unclear] Yes, you must give us that also.

00:27:15CandidateNo peripheral signs of familial hypercholesterolemia.

00:27:15FacultyWhat did you look for?

00:27:20CandidateArcus presenilis, xanthelasma, xanthomas: eruptive xanthomas, tendon xanthomas. And also the retina: if I can examine it, lipemia retinalis.

00:27:35FacultyLipemia retinalis. Where do you find lipemia retinalis and eruptive xanthomas?

00:27:39CandidateHypertriglyceridemia, familial hypertriglyceridemia.

00:27:41FacultyIf arcus is absent on one side, what is the diagnosis? The arcus is absent on one side: unilateral arcus.

00:27:57That means the carotid artery is occluded on that side. That's what it means. These are the googlies. Okay, continue.

00:28:07CandidateThe chest wall is symmetrical, with no visible scars, sinuses, dilated veins or pulsations. The apex is in the left 5th intercostal space in the midclavicular line; heaving apex. There was a palpable S4, and there was also an apico-carotid delay. No parasternal heave, no palpable S2, no thrill, no abnormal pulsations.

00:28:31FacultyVery definite thrill.

00:28:34CandidateAt the apex I was not sure whether it was there or not; it is an uncertain thrill.

00:28:39FacultyThere is a very definite thrill over the precordium. You want to go and check again?

00:28:42CandidateNo, sir. I looked for the thrill. I felt that at the apex there was a thrill, but I couldn't explain it.

00:28:49FacultySo just because you can't explain it, you don't change the finding. That is something you never do in the exam, because what we are trying to see is whether you have the skill, ability and knowledge to pick up the signs, right? The final diagnosis can be completely off; it doesn't matter. Can you pick up the findings? Can you interpret those findings logically? Even if you get the final diagnosis wrong, in many cases the cases are very complex. But don't alter your findings to suit what you think may be the diagnosis. That I don't think you should do.

00:29:22CandidateActually, I looked for a thrill on the right, where the murmur was, in the right second intercostal space. I didn't get it there. But at the apex I felt there is a... I thought it was a palpable heart sound, and at the apex it might be confusing.

00:29:35FacultyAt the apex, which palpable heart sound?

00:29:41CandidateS4.

00:29:41FacultyYou have come to auscultation now. Percussion? Okay, percussion is normal, right?

00:29:52CandidatePercussion is normal.

00:29:59FacultySo how much have we learned from the findings so far? Low volume pulses with late peaking...

00:30:10CandidateThere is no significant difference between upper limb and lower limb.

00:30:16FacultyOther than that, there is an asymmetry in the pulses. Asymmetry in the pulses: don't forget that. Blood pressure is only a little bit different; 96 versus 100 is almost the same. But on palpation, the right side [unclear].

00:30:33CandidateCarotid shudder and thrill are present; bilateral carotid shudder is present.

00:30:33FacultyYes.

00:30:38CandidateOn palpation, the apex is heaving, with a palpable S4 and a thrill at the apex.

00:30:47FacultyIs it at the apex?

00:30:50CandidateI find it.

00:30:58FacultyIn the exam, generally the examiners will not try to mislead you. So if they say, 'Why don't you go back and check?', that means you should be prepared to change your finding. Whereas otherwise, when you are in your hospital, we may constantly try to mislead you just to see how much you know. But not in the exam, right? Okay.

00:31:20CandidateS1 is loud. S2 is narrow... loud. A2 is loud. S2 is single: loud and single.

00:31:42FacultyOkay. Especially in congenital heart disease, the diagnosis really hinges on the second sound, just as arrhythmias hinge on the P wave. So before you say 'single second heart sound', be very careful. Look carefully, go more laterally sometimes or a little lower down, in inspiration and expiration, before you commit to a single second heart sound. I am not saying you are wrong. I am just saying that once you say it is single, you should be prepared for the next question, which will inevitably follow: what are the causes of a single second heart sound? And then you have to somehow work that into your diagnosis also.

00:32:29CandidateActually, I would like to commit to a narrowly split second heart sound.

00:32:33FacultyNarrow split? Now it has become a narrow split?

00:32:37CandidateBecause 'single' means it is not a true single...

00:32:41FacultyWhat do you mean, not a true single? Either it is single or it is split. No; see, again you are trying to change your finding to fit the diagnosis. Don't do that.

00:32:52Single. Actually, I also thought it was single; I couldn't hear a split. So don't change. Please don't change. Expect the question, be prepared with the answers; and then you may not be able to explain it, and it's okay. Never change your findings. If you are in doubt, go back and check those findings, and then decide whether those findings are more important than your diagnosis.

00:33:27CandidateI feel the issue is the overlapping of A2 and P2, the combination; so there is only a single heart sound.

00:33:35FacultyThen I am going to ask you that also: why is it single? You are saying A2 and P2 are fused; you have to explain that. Okay, continue.

00:33:44CandidateThere is a harsh, mixed-frequency, long crescendo-decrescendo murmur, mid-to-late peaking, grade 3/6, best heard in the right second intercostal space and conducted to both carotids. The same murmur is heard over the entire precordium, even over the back.

00:34:06FacultyAnd yet it is 3/6, when you have accepted that there is a thrill?

00:34:12CandidateI am still not sure, sir. I don't want to commit; I am not sure of this. If you say there is a thrill, I will commit: 3/6 becomes 4/6. So, no thrill.

00:34:23FacultyNo thrill? See how much you have changed. You said no thrill, then you said thrill, then no thrill. I asked you to go and check, and you said, 'No, it is there; the thrill is there.' That is what you told me. Don't change your findings. Okay.

00:34:42CandidateOther system examination: nothing significant.

00:34:46FacultyDid you look for a thrill or a murmur or a bruit anywhere else?

00:34:52CandidateI wanted to look. I did the renal areas, but I felt it is the same murmur, radiating. The renal areas were auscultated; there is a systolic sound.

00:35:01Faculty[unclear] for coarctation. What did you have? Coarctation. You brought in coarctation also, no?

00:35:06CandidateYes.

00:35:10FacultySo what will you look for? Upper limb and lower limb BP discrepancies: one thing that you did. Don't you look for a murmur at the back? Is the murmur heard over the back? Did you auscultate over the back?

00:35:23CandidateI didn't get a continuous murmur. It is extensively heard, soft, a little bit more on the left side, but it is there.

00:35:26FacultyIt is there; it is very well heard all over the back. Always, in such cases where you have a doubt, you must auscultate suprascapular, interscapular, infrascapular and lower down. That will distinguish between coarctation of aorta and [AS, unclear]: the [AS, unclear] murmur will be heard only up to the lower interscapular region and won't be heard below that, whereas the other will be heard right down the back. So that's an important thing you have to keep in mind.

00:35:59Yes, you've got a lot of... it is heard quite extensively. But keep in mind that a loud murmur, as even books have said, you can hear on the top of the head also; it can be widely heard. That's the interpretation of it: is it the same murmur which you hear in other places, or is there another murmur? That's another point altogether. But the point is, you should look for it. You made a diagnosis of coarctation; you should look for it.

00:36:28CandidateContinuous over...

00:36:33FacultyI didn't ask about continuous. Did you hear any murmur? It is there. Now you are changing again.

00:36:43CandidateSir, I didn't get that finding, but over the bilateral renal areas I felt it is the same murmur being conducted.

00:36:46FacultyIf you auscultate over the femorals... Should you? Should you not? You found an asymmetry in pulses; you found that the right radial and brachial are weaker. Then shouldn't you auscultate at least the femorals also? You can have some stenosis there. These are things you shouldn't [miss].

00:37:17Done? Anything additional? So now we come to the tough part. What's the diagnosis?

00:37:23CandidateSitus solitus, levocardia, congenital heart disease, severe valvar aortic stenosis, likely etiology bicuspid aortic valve.

00:37:33FacultyWhy did you say bicuspid?

00:37:39CandidateAortic stenosis in a young patient, and a history of likely coarctoplasty.

00:37:47FacultyCoarctoplasty is your assumption. We don't know that coarctoplasty has been done. All we know is that he says he had some stent put in. We don't know where it is.

00:37:58CandidateSounds: the second heart sound...

00:37:58FacultyThere's no hypertension, mind you. Coarctation without hypertension is a little unusual.

00:38:05CandidateOnce you treat the coarctation, the hypertension can persist in 30 to 50% of cases.

00:38:13FacultyYes, but not in all cases; it can persist for reasons I think we have discussed. Okay.

00:38:17CandidateLoud A2 and loud S1. The loud S1 would be because of the click, which is merging with S1, and the loud A2 because of the dilatation of the aorta. So these two. And a young patient with severe aortic stenosis who underwent a balloon-based procedure, balloon valvotomy, with all this.

00:38:40FacultySo your diagnosis again is coarctation and severe...

00:38:40CandidateSir, severe aortic stenosis, likely etiology bicuspid, status post [balloon valvotomy] and stenting at the age of 15 years; now NYHA functional class 2, no evidence of PVH, no evidence of pulmonary arterial hypertension, in sinus rhythm, no evidence of infective endocarditis.

00:39:01FacultyExplain the single second heart sound. I told you I am going to ask you.

00:39:04CandidateThe single second heart sound in this patient will be because of three reasons. The first one is overlapping of the A2 and P2 components, with a loud A2 component.

00:39:18FacultyOverlapping can happen in normal people also, but why is it single? Normally, during inspiration, A2 and P2 separate; they will separate by at least [unclear], so then you don't call it single. If it is single during expiration, you don't call it a single second heart sound. When you say single, you are hearing it single in inspiration and in expiration, correct?

00:39:41CandidateIn severe aortic stenosis, since A2 comes very late, it can split paradoxically.

00:39:46FacultyOkay. Other than that, what are the other possibilities?

00:39:54CandidateThe murmur obscuring... with paradoxical splitting, the murmur is obscuring the pulmonary component.

00:39:57FacultyThat with a grade 3 murmur? Not even a grade 4 murmur. Okay, what else?

00:40:08For some reason, one component is very soft. In AS, A2 can be soft; in PS, P2 can be soft. Sometimes you may not hear it. And in others, not in him, if you have COPD, emphysema, obesity or a thick chest wall, you may not hear it. My point is, whenever you say single second heart sound, don't make that statement so casually, because it has to fit in with the diagnosis, or you have to give an explanation for it, okay? Done? Any DD?

00:40:53So you have said aortic stenosis and post-coarctation. You haven't explained why the right-sided pulses are weaker, have you? You've got two or three findings here. Please bring them all together; try and give something. And sometimes the findings are such that it is difficult to explain them. Then say that you can't explain it, before I ask you about it.

00:41:28CandidateThe click was not there, sir, but there is a loud S1, and A2 is audible, preserved.

00:41:31FacultyYes. Why is there no click?

00:41:35CandidateIt could be merged with S1. The loud S1 could be because the click is merged with S1.

00:41:39FacultyNo, that happens in mitral stenosis. What happens in severe mitral stenosis doesn't happen in aortic stenosis. The aortic valve opens at 80 mmHg; there is a lot of time from S1 to the opening of the aortic valve.

00:41:53CandidateHe is 33 years old, so it could be calcified.

00:41:59FacultyYes, but A2 is [preserved]. Will you describe the aortic stenosis? Supravalvar or subvalvar?

00:42:04CandidateSupravalvar... no click.

00:42:08FacultySupravalvar: A2 is well preserved, understand, and there is no ejection click, so it can't be valvar. The point, again, is that the lesion is either below or above the valve. And if you are getting a disparity in both upper limb pulses, think of supravalvar aortic stenosis.

00:42:26CandidateSupravalvar aortic stenosis. I did not get [unclear] that the right upper limb pulse was not better felt; it is radiating to both carotids. The right side is weaker, but in the blood pressure there is no difference.

00:42:39FacultyBut there is no clinically definite difference? Clinically, the right-side pulses are definitely weak.

00:42:45CandidateMaybe it might have been done at that time. Maybe something.

00:42:50FacultyCould it be discrete subaortic stenosis?

00:42:54CandidateDiscrete subaortic stenosis, subvalvar aortic stenosis, is possible, but usually there will be associated aortic regurgitation. I did not get any AR murmur, so that is why I did not consider it.

00:43:10FacultyIn the majority of cases, and the presentation... I mean, the missing click. You can't tell that; you may be missing the click.

00:43:16CandidateNo click, no AR murmur.

00:43:22FacultyWhat about the carotids?

00:43:22CandidateBoth are the same. Even the thrill is present bilaterally, radiating to both.

00:43:36FacultyIf the radial pulse is very weak but the BP is the same on both sides, what are the other possibilities? Sometimes there can be a brachioradial delay in severe aortic stenosis; the radial pulse may be very weak. But brachioradial delay is very rare. But anyway, he has had some procedure. If he had some procedure, for example radial access...

00:43:55CandidateI asked him about that, sir, whether he underwent a procedure through the right radial during the angiogram, but he said both procedures were through the right groin. I asked him about that.

00:44:03FacultyOkay, but keep in mind that that's one of the causes: up to 4% of patients post radial intervention can have loss of the pulse. But then the brachial will be okay. Here even the brachial seems weaker. Okay, so that's something you have not explained. Any differential diagnosis you want to bring in here?

00:44:31Can it be aortoarteritis? Any chance?

00:44:34CandidateArteritis...

00:44:36FacultyCan that merit a stent?

00:44:42CandidateAortoarteritis, it is.

00:44:45FacultyWhich is the commonest vessel to be involved in aortoarteritis?

00:44:49CandidateTakayasu: subclavian.

00:44:49FacultySubclavian. In Indians, abdominal and renal involvement is more common; overall, subclavian. So maybe he underwent... or you think he underwent a renal intervention? But then there would have been hypertension, no? There's no history of hypertension at any point. So why can't it be that he underwent subclavian artery stenting?

00:45:07CandidateThere's no history of limb claudication.

00:45:10FacultyOh, that doesn't matter. Subclavian steal can have no symptoms.

00:45:13CandidateYes, but angina is the presenting complaint, which is not explained by an isolated subclavian lesion. There should have been associated coronary artery disease.

00:45:21FacultyOkay, so his main thing was angina. Yes, you're right. So what is acquired coarctation? Can that produce it? Anyway, this is coronary involvement. Coronary involvement can be there; hypertension itself can produce angina. But it is rather unusual: starting at 13 years, completely disappearing and then reappearing.

00:45:59Okay, there are definitely points which are difficult to understand, but as long as you are able to give some kind of explanation and you are able to discuss the findings, that's what we are really looking for. Whenever there is vascular involvement like this and you find something unequal, do a systematic vascular examination; that will help you to localise where it is. Start with the superficial temporal, which is a branch of the external carotid; then come down to both carotids, then the subclavian, then the brachial, then the radial. Similarly, don't forget the abdominal aorta and the iliacs, above Poupart's ligament; iliac, then femoral, then come down to the popliteal. And look for bruits over the femoral, over the carotid and over the back. All this will give you some clue to the diagnosis.

00:47:00Okay. Should you get the fundus examined? [unclear] Don't forget. Why?

00:47:07CandidateIn coarctation they can have retinal changes, in the form of [unclear] vessels.

00:47:11FacultyOkay, one is coarctation. Then in arteritis also they can have retinal changes. What are those?

00:47:18Candidate[unclear]

00:47:18FacultyWho described it?

00:47:18CandidateUyama and Asayama.

00:47:25FacultyIt was first described by Takayasu, who was an ophthalmologist. This is the classification given by [unclear]. Okay.

00:47:38Right. So can we go to the investigations? What do you want?

00:47:49CandidateECG, to look for LVH and [unclear].

00:47:52FacultyECG. Okay, good.

00:48:23Can you get it up? I can see it over here. Yes, come on.

00:48:32Candidate[Full, unclear] standardised ECG. Normal sinus rhythm, heart rate of around 80.

00:48:40FacultyYes, good.

00:48:40CandidateThe axis is around 60. Beyond 60; aVL is negative. There is LVH, with an LV strain pattern.

00:49:20FacultyLVH based on which criterion? Come on, it is obvious. Tell me.

00:49:26Candidate[unclear] V3... Cornell.

00:49:31FacultyWhich one?

00:49:36CandidateV3. Voltage criteria.

00:49:41FacultyVoltage criteria, okay. Why don't you just go with Sokolow-Lyon? It is half standardisation, because aVL is... yes, it is half standardisation. There is severe LVH; you don't even need to count it. So, severe LVH by Sokolow-Lyon. Tell me which strain pattern.

00:50:03CandidateT-wave inversion and downsloping ST depression in the lateral leads.

00:50:14FacultyWhat is deduced from the ECG?

00:50:20CandidateA diagnosis of LVH with LV strain.

00:50:30FacultyHow do you differentiate whether this is LVH with strain, or whether the T-wave inversions are because of ischemia? Is it because of ischemia, or because of LV pressure overload only?

00:50:47Okay, let's go to the X-ray.

00:50:55From the ECG, is it eccentric or concentric? [unclear] Eccentric? Now you have got heart failure. Eccentric with heart failure? [unclear]

00:52:00Explain the X-ray.

00:52:03CandidateNormal rotation and exposure. Cardiac silhouette [unclear]. [No] rib notching. [unclear] some stents.

00:52:37FacultySo you said coarctation was one diagnosis; that's why you look for rib notching. Where will you look for it?

00:52:43Candidate3rd to 8th ribs, lower border.

00:52:48FacultyPardon?

00:52:48Candidate3rd to 8th ribs, lower border.

00:52:52FacultyDon't bring one mic near another microphone. Lower border of the 3rd to 8th ribs. Okay, why lower border? Why 3rd to 8th?

00:52:59CandidateSir, lower border because of the posterior intercostal arteries; they run in the... The anastomosis happens between the anterior and the posterior intercostals...

00:53:09FacultyFinish your sentence: under the lower margins of the ribs.

00:53:16CandidateYes. The neurovascular bundle runs, and the anastomosis happens, along the lower edge of the rib. And the first and second ribs are not involved because the costocervical trunk gives the supreme, or superior, intercostal artery, which gives rise to the first two branches. So collateral anastomosis happens between the 3rd and the 8th. So rib notching is not there. And the post-stenotic segment is not dilated, so it is unlikely to be [coarctation, unclear].

00:53:47FacultySo, unlikely.

00:53:50CandidateI was looking at the aorta, but that is not there. With a bicuspid aortic valve they will have aortopathy; there is usually some dilatation of the ascending aorta.

00:54:01FacultyWhat else can you see in coarctation? The 3 sign can be there. What is the 3 sign? Can you explain the 3 sign?

00:54:06CandidatePre- and post-stenotic aortic dilatation.

00:54:13FacultyPre- and post-stenotic dilatation, is it?

00:54:13CandidateYes.

00:54:17FacultyIs there a pre-stenotic dilatation in coarctation? What is the segment before the coarctation called? No; first, the next question is: what is the segment before the coarctation called?

00:54:33CandidateIsthmus.

00:54:33FacultyThe isthmus is where the coarctation happens, the narrow portion. Above that is [unclear], and below that is the post-stenotic dilatation, isn't it? There are three segments of the coarctation. So what actually gives rise to this 3 sign?

00:54:50CandidateKnuckle; then there will be the stenotic segment; and then the distal portion will be...

00:54:52FacultyYou know, or you don't know?

00:54:59CandidatePre-stenotic dilatation.

00:54:59FacultyDilatation. The dilatation is not prominent. [unclear] The dip that you get in between is at the level of the ductus, or at the level of the coarctation, and below that is the post-stenotic dilatation. What is the reverse 3 sign?

00:55:26CandidateReverse 3 sign: on barium swallow you can get the E sign. If you perform a barium swallow, you will get the opposite of it.

00:55:30FacultyAnd there again it is the same; [unclear] subclavian, it is the same thing. Okay. Here, the pulmonary artery segment looks to be enlarged, no? MPA enlarged?

00:55:44CandidateNo.

00:55:48FacultyThe bay is a little filled out, no?

00:55:53CandidateActually, there are some stents in the [pulmonary arteries, unclear]: bilateral [unclear] stents.

00:56:02FacultyBilateral PA stents? This is in the right and the left?

00:56:16CandidateHere there are stents; they will be better seen here.

00:56:22FacultyBetter seen on your laptop? Is it the workstation?

00:56:24CandidateI thought stenting was not there. So when I looked for a stent, only these two.

00:56:34FacultyHere there is a stent, and here also there is a stent? At least from this, it is not clear. I don't know if it is clearer on your laptop.

00:56:51If you are saying on the right side, you are talking of peripheral pulmonary artery stenosis now. Is that what you mean?

00:57:05CandidateSir, here there is one stent, and here also there is one stent. This one, sir, is one stent, and here there is one stent. Two stents are there. This one, sir, on the left side.

00:57:15FacultyYes, it does look something like that. This is also there... that I can't make out.

00:57:29CandidateSir, this must be supravalvar aortic stenosis, because there is no [unclear], and if the PAs are stented, it must be supravalvar aortic stenosis. I have not heard the click also.

00:57:49Faculty[unclear] Now the others will take the cases. The left... is it the right? I still can't make it out. Okay, go ahead. Let's go to the next one.

00:58:45CandidateThis is the parasternal long-axis view, grayscale, showing severe concentric LVH and normal mitral valve opening. The [aortic valve, unclear] is not well visualised. There is an echogenic structure in the sinus.

00:59:11FacultyCan you comment on the aortic valve?

00:59:11CandidateThere is concentric LVH.

00:59:14FacultyWe don't know. Go to the previous parasternal long-axis view. Yes, see what's happened to the aorta.

00:59:28CandidateIt is not well visualised, sir, but there is an echogenic fixed structure seen here in the sinus. It looks thickened, and there is asymmetrical closure also, I think. Its closure is closer to the lower end rather than the upper end.

00:59:48FacultyColour: any turbulence seen?

00:59:51CandidateHere, actually, the colour flows are laminar.

01:00:02FacultyGo to the aortic valve; it can be better assessed in the short axis.

01:00:10CandidateParasternal short-axis view, grayscale, at the level of the mitral valve, showing normal mitral valve opening and concentric LVH.

01:00:21FacultyWhich one did you ask for? Apical?

01:00:25CandidateShort axis, aortic valve level. After that, there are some short-axis views, then this one.

01:00:42FacultyNot very clear. The aortic valve doesn't seem too thickened. Without colour.

01:00:58CandidateComplete obliteration of the LV cavity. The aortic valve opening is not well seen. At the supravalvar level there seems to be an obstruction.

01:01:36FacultyThe [unclear] cavity looks much better. Normal.

01:01:42CandidateNormal [unclear], with concentric LVH. Five-chamber view: normal aortic valve leaflets, and above that an echogenic thick structure can be seen causing narrowing.

01:02:05FacultyI would like to see colour Doppler.

01:02:05CandidateSir, this is the only view we got. It was a difficult echo to get, but we thought there was a narrowing.

01:02:13FacultyCan you just show that there was a narrowing at the supravalvar level?

01:02:22CandidateNo valvular regurgitation.

01:02:31AudienceCT is done, sir. In fact, sir, the case was kept for discussion for that reason, because the CT diagnosed it as query aortoarteritis, [unclear]. But there are very large coronaries on the CT, because they are exposed to much higher pressure, and there is an ostial stenosis of the left common carotid.

01:02:53Regarding what was said about why there is a discrepancy in the pulses: there is no clear indication why that was happening. There are a couple of discrepancies; we wanted to discuss this case, that's the only thing. It was an interesting case. It was clearly supravalvar AS, no doubt about that. The coronaries were quite enlarged, the aortic valve was normal and the left carotid has a stenosis.

01:03:16UnclearThat will give [unclear] aortic stenosis.

01:03:16AudienceYes, sir. But for the upper limb pulses, sir, actually the left was better than the right; I think that was also mentioned by the candidate. For the left pulse, there is no Coanda; I mean, it is like a reverse Coanda. Maybe, we thought, because the brachial is also weak...

01:03:33FacultySo why would there... It could be the innominate. [unclear] Or an additional stenosis in the right subclavian, the right subclavian independently, probably a little beyond the aortic origin, maybe a little distal also, which we commonly see in Takayasu also.

01:03:53AudienceYes.

01:03:53FacultySo what we know for sure is that there is supravalvar stenosis and peripheral pulmonary [stenosis]. What about the abdomen? Everything else is okay?

01:04:04AudienceNo, sir. Actually, the suprasternal view [unclear].

01:04:09FacultyLeft. Yes, that's the right carotid, isn't it? Or was that... which seems narrowed? Yes, coming from the aorta. The left: it is the left carotid, and next to it is the innominate. Yes, left. What about the left subclavian? Narrow?

01:04:35AudienceNo... right, sir. We are not seeing distally.

01:04:38FacultyThere seems to be something beyond the vertebral. Anyway, somewhere there it looks a little suspicious. Reconstruction is not there?

01:04:58AudienceNo, we don't have it.

01:05:02FacultyAnyway, I think you need to evaluate this more.

01:05:08AudienceI don't think they've done it yet. It was done just 2 days back, sir. We'll get it reconstructed.

01:05:12FacultySo you have supravalvar aortic stenosis; put on the light. You have left carotid stenosis, peripheral pulmonary stenosis, and possibly, clinically, something in the right subclavian. So why can't the whole thing be [aortoarteritis, unclear]? Because you have pulmonary artery involvement, and you have aortic involvement beyond the aortic valve; the supravalvar lesion can be just beyond the valve. With a supravalvar lesion you may get [unclear] of the subclavian artery, and you may get [unclear]. And in addition, the pulmonary vessels were involved.

01:06:01The first time, was his angina due to the peripheral pulmonary stenosis?

01:06:05AudienceNo: supravalvar aortic stenosis, severe LVH.

01:06:05FacultyBut the angina was relieved thereafter. He underwent angioplasty, and the typical angina was relieved for 10 years. Balloon angioplasty of the supravalvar segment, maybe, plus stenting of the [pulmonary arteries]?

01:06:22AudienceNo, not here; it was done somewhere else.

01:06:22FacultyOkay. So at that time only the peripheral [pulmonary arteries were treated]. That is at 13 years... at the age of 15 years, 18 years ago.

01:06:44Supravalvar aortic stenosis with bilateral branch pulmonary artery stenosis: LPA and RPA stenosis.

01:06:52AudienceSo, sir, if you tackle the pulmonary arteries, then [unclear].

01:06:58FacultySo after that... We can't do this case right now; let him come.

01:07:01AudienceHe didn't come for follow-up. He has been following up elsewhere, sir; this time this case was sent here, actually, for discussion.

01:07:14FacultyAnyway, the pulmonary artery [pressure, unclear] is 50 or something?

01:07:18AudienceThat is too much; that is the RVSP. Sir, the [PA mean pressure, unclear] is around 30.

01:07:24FacultyNot much, then. So they have to operate; they only have to do aortoplasty, the whole ascending aortoplasty. Difficult.

01:07:37So, in conclusion: there is controversy about the Coanda effect. Do you know what the controversy is? The Coanda effect says that the pressures are higher on the right side than on the left side. Actually, that may not be true; the pressures on the left side may be lower than those on the right side.

01:07:53UnclearSo, sir, you can explain that there could be an associated right innominate [stenosis].

01:07:53FacultyYes, that is true. That can be.

01:08:01What is the reason for Coanda? Why does Coanda happen?

01:08:11Not in him; I mean generally, why does Coanda happen? Generally, the Coanda effect is supposed to give higher pressures on the right side, but that may not always be true. It could be because of lower pressures on the left side rather than higher pressures on the right side. Yes, I am asking you why. What is the mechanism of Coanda?

01:08:31CandidateA wall-hugging jet will be there: a high-velocity jet directed to the right.

01:08:44FacultySo basically, you have a case where it is very difficult to get the diagnosis. So again I am coming back to the point: please don't fit your findings to whatever diagnosis you think it may be.

01:08:56CandidateNo, sir. After seeing the X-ray, with the examiner asking me, and there is no click and no ascending aortic dilatation, sir, I have to [revise, unclear].

01:09:04FacultyYou have to tell yourself [unclear]. You are not hearing a click, and right, there is no ascending aortic dilatation. It cannot be valvar.

01:09:24Yes, the presentation was good, except that this is a very difficult case. The more difficult the case, the easier it is to pass an exam. That is always true, because everybody discusses it, so they will give the benefit to the candidate. But what he said, you have to keep in mind: don't go back on your findings. Stick to your findings completely. Your presentation was quite good, but go a little slower. Your communication should be such that the people sitting in front of you understand what you are talking about. So be a little slow and clear in your communication.

06

Day 1 · 17-Oct-2026 · 12:55 hrs · 32 min

Cardiology OSCE and Imaging Spotters Session 1

  • OSCE technique
  • Cardiac imaging spotters
  • Cine angiography
  • Chest X-ray
  • Prosthetic valves
  • Devices and leads
  • Hypertrophic cardiomyopathy
  • Syndromic congenital heart disease

The first OSCE and imaging-spotter session of Day 1 was conducted as a rapid round in which candidates, passing a microphone along the rows, described cine angiograms, chest X-rays, echocardiograms, ECGs and clinical photographs while the examiner questioned and corrected them. The examiner repeatedly stressed describing the image systematically (modality, view, findings) before offering a diagnosis. Stations included prosthetic valve dehiscence, facial flushing after left cardiac sympathetic denervation, phrenic nerve stimulation, nickel allergy after PFO closure, LV perforation during ventriculography, IVC-to-RA tumour extension, prosthetic valve position on X-ray, a perforated ICD lead, cardiac amyloidosis signs, left main aneurysm, posterobasal LV aneurysm with severe MR, systolic anterior motion in HCM and Ellis-van Creveld syndrome. The session paused for lunch with the remaining spotters deferred to the afternoon.

Teaching points

  1. When describing a spotter, do not jump to the diagnosis: state the modality and view first (e.g. 'this is an angiogram in the RAO view'), then the findings; points are awarded for the description even if the final diagnosis is wrong.
  2. A rocking prosthetic valve indicates dehiscence of the sutures holding it, most often due to infective endocarditis.
  3. Unilateral facial flushing and hyperhidrosis follow left cardiac sympathetic denervation, which was done here for bidirectional ventricular tachycardia degenerating into ventricular fibrillation.
  4. Rhythmic diaphragmatic contraction at the paced rate on fluoroscopy indicates phrenic nerve stimulation; it is typically encountered with CRT.
  5. A rash after PFO device closure suggests nickel allergic dermatitis, rare in India but common in the West, and usually self-limiting.
  6. On a chest X-ray, a valve lying above a line drawn from the right cardiophrenic angle to the opposite hilum is aortic and below it mitral; mitral ball-and-cage valves usually have 4 struts and aortic ones 3, except very large aortic valves.
  7. Coronary ectasia is dilatation more than 1.5 times the normal diameter; a localised dilatation is an aneurysm, saccular when the transverse diameter exceeds the longitudinal and fusiform otherwise.
  8. On the RAO LV angiogram the segments are anterobasal, anterolateral, apical, diaphragmatic and posterobasal; a posterobasal aneurysm suggests inferior MI or, in the tropics, a submitral aneurysm.
  9. Severe MR on LV angiography: LA contrast density equals the LV, and the LA appendage and pulmonary veins opacify.
  10. Polydactyly (post-axial), dental malformation and left axis deviation point to Ellis-van Creveld syndrome, whose commonest associated lesion is common atrium.
Edited transcript 166 paragraphs · 3,343 words

00:00:03FacultyWe will start from one corner. Give the mic to the first person. Don't identify yourself; only your voice.

00:00:17When you describe a spotter, don't jump directly into the diagnosis. Most of the time it will be wrong, and you will lose all the marks. So start with 'This is an angiogram, this is such-and-such view', like that, and you will get some points. If you suddenly say 'This is TAPVC' and it is wrong, it is gone. So that is the first point.

00:00:47Can you describe what you are seeing?

00:00:57CandidateCine image showing a post-cardiac-surgery patient.

00:01:05FacultyVery good, that is how you should say it. Even if you don't tell the final diagnosis, you said this is post cardiac surgery because of the sternal wires, and you have some prosthetic material inside.

00:01:17CandidateYes, there is a prosthetic valve and a ring also.

00:01:22FacultyHow many prosthetic materials are there?

00:01:24CandidateTwo are there.

00:01:24FacultyWhat are they?

00:01:30CandidateOne is a ring, sir, and the other one is a valve, which is showing rocking.

00:01:35FacultyAn annular ring, very good. And there is also a prosthetic valve, a bileaflet valve; you can see the two leaflets. And what is happening to that valve?

00:01:50CandidateThere is rocking.

00:01:50FacultyRocking means what? Why does rocking happen?

00:01:58CandidateWhen the stitches which are holding the valve give way, the rocking happens.

00:02:03FacultyOkay, so most likely it happens due to what?

00:02:06CandidateInfective endocarditis.

00:02:06FacultySo this patient must be having infective endocarditis; this is rocking of the valve. The other one is the ring; the positions and all we will discuss later. Very good. Next person. So start like this: describe what you are seeing, and don't jump to the diagnosis.

00:02:27This is an intervention done for the condition which is seen in the ECG. This particular finding will not be obvious in an Indian patient; that is why the image of a very obviously white-skinned person is given. So identify the disease, identify the intervention, and what it was done for.

00:02:51CandidateIt shows an ECG with ventricular fibrillation.

00:02:54FacultyAnd initially what is there? It is not ventricular fibrillation to start with, no?

00:03:00CandidateYes, sir, there are VPCs with an R-on-T kind of phenomenon followed by ventricular fibrillation, and a facial picture of a woman with a malar rash. Maybe this is a patient with an infiltrative disease like sarcoidosis, and she might have undergone ICD implantation for this fibrillation.

00:03:32FacultyOkay, that is not it. What are you seeing? Is a malar rash usually on one side or both sides?

00:03:44CandidateUsually both sides.

00:03:44FacultyBoth sides. But what is happening here? Is it on one side or both sides? And what is happening to the face in the close-up which is shown?

00:03:57CandidateRight side.

00:04:01FacultyWhere is the hyperhidrosis? The hyperhidrosis is on the right side. So what is the procedure done?

00:04:13CandidateSympathectomy.

00:04:15FacultyIt is a cardiac sympathectomy, a left cardiac sympathetic denervation, done for what is actually an alternating bundle branch block pattern, an alternating VT going into VF. After that you get some side effects, in around 95% of the patients: ptosis, then unilateral facial flush, hyperhidrosis, etcetera. This is LCSD.

00:04:44It is a bidirectional tachycardia. You want to see the ECG again? It is a bidirectional tachycardia going into VF. So it was a good guess; I appreciate that he noticed the malar flush, but it was not the correct answer. It was a good guess, though, and you will get some points. You will not fail because of it.

00:05:21You can speak a little louder. Can you give him another mic?

00:05:28CandidateThere are two cine images, sir. On the right side, this image is taken in the LAO view, and—

00:05:32FacultyOkay, the view doesn't matter here. It is shown mostly in the AP view or slightly tilted views. What is there?

00:05:51CandidateLeads are there.

00:05:51FacultyLeads are there, okay. But nobody will show you normal leads, so there is something abnormal. What is that? What is the thing which is focused?

00:06:17CandidateThe diaphragm is focused.

00:06:17FacultySo what is happening to the diaphragm?

00:06:22CandidateThe diaphragm is contracting at the pacing rate.

00:06:27FacultyThis is on the right side. What is happening to the left side? You are seeing the left side; is it happening like that on the left side? It is not; only the right side is. Diaphragmatic pacing is happening only on the right side. So it is right diaphragmatic pacing. But the lead is also coming differently: the lead is coming from a left SVC. That is another issue. Okay, it is diaphragmatic pacing.

00:07:12UnclearI will come back, sir. It must be, sir, because of the left side.

00:07:28FacultyThe left side is not pacing; that is why I wanted to show it. Okay, next person. Phrenic nerve stimulation usually happens in—what is it?—CRT. That is where it usually happens. Okay, next one.

00:07:51This patient underwent an interventional therapeutic procedure a few months back and is now presenting with this symptom a few weeks or two months later. She had a TIA two times.

00:08:13TIA, transient ischaemic attack, two times, and she underwent the procedure.

00:08:27Can you speak a little louder? Can you give the other mic? I think there is some problem with this one.

00:08:47CandidateThe image is showing hairy patches over the right side of the abdomen.

00:08:52FacultyKeep the mic a little closer. The right side of the abdomen, okay. The side doesn't matter; you can say some rash is there.

00:09:09CandidateI cannot tell, sir. You answer it.

00:09:13FacultyOkay. I am going to name this an OSCE rule: the distance between the mic and the mouth is inversely proportional to how well you know the answer. Correct? Exactly, somebody said it. So anybody can guess.

00:09:39It is not amiodarone-related; it is device-related, very common in the West but not very common here. What do the devices contain? For example, this patient had a TIA, so what device?

00:09:55AudiencePFO.

00:09:55FacultyWhat does a PFO device contain?

00:09:58AudienceNickel.

00:09:58FacultyIt is a nickel allergy. It is very rare here but very common in the Western world. So this is a severe allergic dermatitis. It is usually self-limiting. The use of nickel ornaments is very common in the West, probably; that is why they get sensitised. We don't use nickel; we use gold, probably, and gold is very non-allergic. That is why we don't get it. Okay, next person.

00:10:59Go on describing.

00:11:02CandidateThis is an attempted left ventricular angiogram, probably in the RAO view.

00:11:05FacultyUsually, which view will you do a left ventricular angiogram in?

00:11:13CandidateRAO 30-degree view.

00:11:13FacultyOkay. It is an attempt at a left ventricular angiogram. Usually angiograms are done with side-hole catheters, and usually we do it with a pigtail. But what other catheter can you use? Actually, a diagnostic catheter.

00:11:33CandidateTiger catheter.

00:11:33FacultyWhat is the spelling of Tiger? Not only the person holding the mic; other people can also tell the spelling of Tiger. Speak louder. Anybody sitting in that row can answer it. What is the spelling of the Tiger catheter?

00:12:02Audience[unclear spelling offered]

00:12:02FacultyThat is not it. Okay. So a Tiger catheter can also be used for doing an LV angiogram. Why? Does it have side holes? It has side holes, so you can use it for LV angiography. But here, probably a Tiger catheter was used, and what is happening? It is hitting the left ventricular wall and has perforated the LV, and the contrast is filling the pericardium. So it is producing an effusion, and maybe the patient had tamponade [unclear]. I don't know what happened to the patient; it is not our case. I got it from somewhere.

00:12:53AudienceIt must have been a machine, a pressure injection. I think a hand injection will not do this.

00:13:03FacultyYes, but these Tiger injections are usually hand injections, which most of us do. Okay, next person, the next row behind. You will get your chance, don't worry. We have, I think, one more session today, so everybody will get a chance.

00:13:35Which view of the echocardiogram?

00:13:35CandidateSubcostal.

00:13:35FacultySubcostal view. What are you seeing? Very good. You can speak a little louder.

00:13:45CandidateIVC to RA, one mobile mass.

00:13:49FacultyOkay, very good. What are the situations where you get such a thing?

00:14:00CandidateCarcinoma, sir.

00:14:00FacultyRenal cell carcinoma is one of the commonest conditions. Otherwise, a large thrombus from the IVC can also, very rarely, do this, but the most common condition is renal cell carcinoma. Okay, good. Next one.

00:14:18You can tell the findings; you probably cannot tell the diagnosis, and that is not required. Post-surgery. Speak louder and clearly. Anyway, I am not seeing you; I don't think anybody else is seeing you. You can tell whatever you think it is.

00:14:40When you see an X-ray, especially when the heart is on the other side and all, you have to start by telling the situs. So is the situs clear in this?

00:14:51CandidateSitus solitus, but dextrocardia.

00:14:51FacultyDextrocardia, okay. Then what else are you seeing? Is it a postoperative patient? You are seeing the sternal wires. What else? You are seeing something else here. What is it most likely?

00:15:08CandidatePDA clip.

00:15:08FacultyOkay. Then what about the vascularity? Is it the same on both sides? There is differential vascularity: the vascularity is reduced on the right side, and there is a vascular shadow. Actually, this was a BDG done on the left side, which has become dilated. So the diagnosis is some complex congenital heart disease: pulmonary atresia, post-BDG. Okay, next person.

00:15:45I don't think it is very clear here, but it is clear on the other monitors.

00:15:50CandidateChest X-ray, PA view.

00:15:55FacultyHow will you differentiate between a PA and an AP view?

00:15:59CandidatePA and AP view you can differentiate by the level of the scapula. The scapulae will be wide apart in the PA view, and the clavicles will be horizontal in the PA view.

00:16:15FacultyOkay, anybody can make it better? Okay, go ahead. What are all the things you are seeing?

00:16:39CandidateThere is cardiomegaly, sir, with an LV type of apex.

00:16:50FacultyWhat are all the chambers enlarged? You said the LV is enlarged.

00:16:53CandidateThe LV is enlarged; the LA is enlarged.

00:16:53FacultyWhat are the signs of LA enlargement on an X-ray?

00:16:59CandidateThere is splaying of the carina, sir, more than 90 degrees, and there is a double shadow, and then there is straightening of the left heart border or a bulge below the pulmonary bay. There is also right atrial enlargement.

00:17:13FacultyRight atrial enlargement, and the criteria you should know; I think everybody knows them.

00:17:17CandidateAnd there is pulmonary venous congestion; you can see some cephalisation.

00:17:21FacultyVery good. You should know the stages of pulmonary venous hypertension, what is equalisation, what is cephalisation, all those things, and the reasons why they occur.

00:17:31CandidateThere are two valve shadows; two mechanical valves are seen. One looks like a ball-and-cage valve, sir.

00:17:38FacultyOkay. The ball-and-cage valve is in which position?

00:17:38CandidateIn the mitral position.

00:17:42FacultyWhy do you say it is in the mitral position? Two reasons.

00:17:47CandidateIf you draw a line from the right cardiophrenic angle to the hilum, if the valve lies above that level it is the aortic valve; if it lies below that it is the mitral valve, sir.

00:18:01FacultyFrom the cardiophrenic angle to the opposite-side hilum. If you draw a line from here to here, if the valve lies above it, it is the aortic valve; below it, it is the mitral valve. Okay. And one more reason why it is a mitral ball-and-cage valve?

00:18:20CandidateThe orientation: it is facing downwards, from the LA to the LV, the way the blood should go.

00:18:25FacultyAnd one more reason: how many struts are there? Four struts. A mitral valve will usually have four struts and an aortic valve will usually have three struts, except the very large ones. Okay. The other one, in the aortic position most likely, is a tilting-disc valve. Okay. And what is the pathology? Which valve is most likely abnormal?

00:18:54CandidateThe aortic valve, sir, because the LV is enlarged.

00:18:58FacultyNo. Why should there be LA enlargement in an aortic valve pathology? That occurs only in the late stage, no? So most likely it is a mitral valve pathology, because you have LA enlargement. And the LV enlargement could also be due to a paravalvular leak; most likely a paravalvular leak. Okay, next. Good.

00:19:25CandidateChest X-ray PA view. Pacemaker.

00:19:40FacultyWhere is it pacing?

00:19:45CandidatePerforated.

00:19:45FacultyVery good. Where is it now? What pacemaker is it? Is it a single-chamber pacemaker, a dual-chamber pacemaker or some other thing?

00:19:59CandidateSingle chamber.

00:20:06FacultyNow, what is thickened? Something is thickened here and here. What is it?

00:20:10CandidateShock coil.

00:20:10FacultyShock coils, so it is an ICD. So the ICD lead is perforated and it is in the abdominal cavity. Okay, perforated ICD lead. Next person.

00:20:29Just some fun. But don't tell the diagnosis, please; everybody will get a chance. Link these and diagnose: 'cherry on top' first, then the Popeye sign, and the last one is raccoon eyes. So what is the diagnosis?

00:20:56CandidateCardiac amyloidosis.

00:20:56FacultyOkay. So this is the Popeye sign; can you see it in the video? It is a bulge because of the tendon rupture; the biceps comes up like the cartoon character. Then 'cherry on top', and the raccoon eyes. Okay, next person.

00:21:28Who is having the mic?

00:21:31CandidateThese are angiograms of the left coronary artery.

00:21:35FacultyWhich view is it?

00:21:35CandidateRAO caudal view.

00:21:35FacultyVery good, RAO caudal view. You should know how the RAO and LAO views look depending on the position of the spine and the diaphragm and all. It is very basic; I think everybody knows it.

00:21:50CandidateIt shows the left main having aneurysmal dilatation.

00:21:53FacultyAneurysmal dilatation. So what is ectasia and what is an aneurysm? You all know: when the diameter is more than 1.5 times the normal diameter, it is called ectasia. When it is localised, it is called an aneurysm. Is it a saccular or a fusiform aneurysm?

00:22:14CandidateSaccular.

00:22:14FacultyIt is saccular, because the transverse diameter is more than the longitudinal diameter; then it is called saccular. If it is the other way, it is called fusiform. So what do you do for this? Will you do something, or what are the problems with this aneurysm? What happens to the blood flow in the aneurysm?

00:22:41CandidateThere can be stasis, and it can produce thrombus, and it can embolise.

00:22:47FacultySo what can you do for it?

00:22:52CandidateWe can do a covered stent, or we can do clipping [unclear] and do CABG.

00:22:56FacultyOkay, that is one option. Any percutaneous option, if the patient is not willing for surgery? You have a little margin before the bifurcation, probably a millimetre of margin. Difficult, but intervention-wise, can you do something?

00:23:18CandidateCovered stent.

00:23:18FacultyCovered stent. But I don't know whether a covered stent would be feasible in this patient. This patient was actually on follow-up for many years. The patient was not willing for anything, and on a 10-year follow-up nothing has happened to this patient. Okay, next person.

00:23:43Sorry, somehow it is not playing. One second.

00:24:02Tell me, the angiogram is in which view?

00:24:02CandidateRAO view, sir.

00:24:02FacultyRAO view, okay. How much volume will you give in a normal RV or LV angiogram? What are the settings? That you should know. Somebody may ask you what the settings are, what PSI you will keep and how much volume.

00:24:32CandidateUsually around 20 to 25 ml, around 14 to 16 ml per second, and a PSI of 750.

00:24:36FacultyHow much? 750. What is PSI?

00:24:41CandidatePressure per square inch; pascals per square inch.

00:24:41FacultyPounds per square inch. That is homework; go and find out. Okay. What is happening to this? Go on speaking.

00:25:05CandidateRestrictive VSD.

00:25:05FacultyRestrictive VSD? Okay, but to see a VSD on LV angiography, which chamber should fill? The RV should fill. Is the RV filling here?

00:25:20CandidateIt can be a Gerbode defect, from the LV to the RA.

00:25:30FacultyMore obvious things, no. For a Gerbode, the RA should fill and then the RV should fill. Here no right-sided chambers are filling; only the left-sided chambers are filling.

00:25:42CandidateSir, LV apical aneurysm.

00:25:47FacultySo what are the segments you identify in the RAO view of an LV angiogram? That you should know; that is commonly asked. Let me take the pointer there. See here: anterobasal, anterolateral, apical, diaphragmatic and posterobasal. Those are the segments, okay? So here, what is happening? Which segment is aneurysmal?

00:26:18CandidateThe posterobasal segment is aneurysmal.

00:26:18FacultyWhat are the two conditions where you get a posterobasal aneurysm like this? Which coronary involvement can do it?

00:26:33CandidateRCA, inferior MI with RV infarction.

00:26:38FacultyInferior MI can produce this. What other condition, which is common in the tropics, can develop like this? Submitral aneurysm; that is one cause. This patient actually had a submitral aneurysm producing a large aneurysm. And what other haemodynamic abnormalities are there in this angiogram?

00:27:02CandidateA posterobasal aneurysm is there. The rest of the LV is contracting normally; the other segments are contracting normally.

00:27:06FacultyWhat is happening to the blood from the LV? Where is it going? What is the chamber filling here?

00:27:19CandidateThere is severe mitral regurgitation.

00:27:19FacultyWhy do you say it is severe mitral regurgitation? Because the LA is almost as dense as the LV. And two other things are also filling here. What are they? Let me show with the pointer. Here is the LA appendage, and the pulmonary veins will fill. These are the two things you have to see. Somehow it is not replaying continuously. Here you can see the LA appendage filling, and the pulmonary veins also fill in the case of severe MR, and the density of the contrast is the same in the LV and in the LA. So what grading of MR does that indicate? Sellers grade [unclear].

00:28:15Okay, next: a 28-year-old male with dyspnea on exertion. What is the finding? Next person who is having the mic.

00:28:29CandidatePigtail catheter.

00:28:29FacultyVery good, a pigtail catheter in the LV, in which view? Where is the spine; which part of the screen? You were seeing RAO views; now it is seen in the LAO view. Okay, LAO view, and in the LAO view you should know the segments: this is the septal segment and this is the lateral segment.

00:29:00So here the patient is a 22-year-old male with dyspnea on exertion. You should have in mind the conditions which are possible. What are they? LV function is normal, so it is not coronary artery disease or anything. What is happening? It is a hypercontractile LV. Okay. And what is happening here? Some white things are seen here. Just see here carefully.

00:29:27CandidateSubvalvular—

00:29:30FacultyMore commonly? It is not a congenital heart disease. You are seeing the mitral valve; this is SAM. You can see the white things. Now look carefully: can you see the white mitral curtain going and hitting the septum? That is the SAM. You should know the mechanisms of LVOT obstruction in HCM. Stop.

00:30:04We will continue after this in the afternoon session. We will take one more. Again, who is having the mic?

00:30:17These are three findings; I think everybody should know these. What is the most common cardiac lesion associated with these three findings in this patient? You can describe what you are seeing.

00:30:34CandidateThe image is showing polydactyly.

00:30:37FacultyOkay, very good. What type of polydactyly? There are two types of polydactyly: post-axial and pre-axial. This is post-axial polydactyly. Okay, then?

00:30:55CandidateTeeth malformation.

00:30:55FacultyTeeth malformation, okay. And what is there in the ECG? The patient is having a wide split second heart sound, etcetera, but the ECG is like this.

00:31:12CandidateThe ECG shows left axis deviation.

00:31:12FacultySo what is the condition? This is a syndrome.

00:31:23CandidateEllis-van Creveld syndrome.

00:31:23FacultyAnd the most likely associated lesion is common atrium. Okay, common atrium; that is very common. We will stop here and continue later. Thank you.

00:31:31SpeakerThank you so much, sir, and thank you for accepting the invitation to this wonderful programme.

00:31:38FacultyEvery year I get the invitation, but my family doesn't get invited. Family never gets invited.

00:31:41SpeakerThank you so much, sir. We now break for lunch, but when...

07

Day 1 · 17-Oct-2026 · 14:22 hrs · 19 min

Hypertrophic Cardiomyopathy Imaging Discussion

  • Hypertrophic cardiomyopathy
  • Dynamic auscultation
  • Echocardiography
  • Mitral regurgitation
  • Cardiac MRI
  • HCM mimics
  • Cardiac amyloidosis

A candidate presented the clinical findings, ECG and echocardiogram of a woman with chest pain, dyspnea and syncope, and the faculty questioned the candidate on bedside dynamic auscultation, the ECG, and the mechanisms of mitral and aortic regurgitation in hypertrophic cardiomyopathy. Echocardiography showed concentric LVH, grade 1 SAM, a dagger-shaped LVOT Doppler signal with a peak gradient of about 70, and an aneurysmal interatrial septum. The discussion then covered the roles of CMR, HCM mimics, bone scintigraphy and T2* imaging, and amyloid management. Several stretches of the recording are unintelligible.

Case
Woman (age not stated) with chest pain, dyspnea and syncope; SpO2 98% on room air, BP 100/60, pulse 82/min, BMI 22; S2 normally split.
Diagnosis discussed
Hypertrophic cardiomyopathy, asymmetric septal hypertrophy subtype, with dynamic LVOT obstruction (the candidate's diagnosis; not explicitly revised in the recording).

Teaching points

  1. For a suspected HCM murmur, the simplest bedside dynamic maneuver is stand–squat–stand, which changes preload and afterload; handgrip can be added. The examiner should stand and squat along with the patient.
  2. A normally split S2 with no loud P2 was used to argue against significant pulmonary hypertension in a patient with syncope and dyspnea.
  3. MR in HCM that is centrally rather than posteriorly directed suggests a mechanism other than SAM, such as atrial functional MR from LA and annular dilatation.
  4. Mitral apparatus abnormalities in HCM include elongation of the anterior mitral leaflet, anomalous papillary muscle attachment, supernumerary papillary muscles and chordal abnormalities.
  5. The LVOT Doppler signal in obstructive HCM is dagger-shaped, with the gradient rising in mid-to-late systole.
  6. CMR in HCM serves diagnosis and prognosis: it quantifies scar burden (relevant to primary prevention of sudden cardiac death) and helps exclude restrictive and other mimicking physiology.
  7. HCM mimics named in the discussion were Fabry disease, hypertension, severe AS and Noonan syndrome; amyloidosis was also considered, with bone scintigraphy as an investigation.
  8. In hemochromatosis, T2* CMR is used, and the liver and the heart both appear dark.
  9. In transthyretin amyloidosis, distinguish wild-type from hereditary disease; tafamidis was stated to be unavailable in India.
Edited transcript 77 paragraphs · 1,274 words

00:00:08CandidateA female patient presenting with chest pain, dyspnea and syncope.

00:00:13FacultyChest pain, you forgot. Yes, not pulmonary embolism; something pulmonary. What about pulmonary hypertension?

00:00:23CandidateSo, primary pulmonary hypertension: a lady presenting with syncope and dyspnea. Family history [of] sudden cardiac death is another mode. That can also be thought of.

00:00:39FacultyDo you want to report it?

00:00:39CandidateYes. Her saturation is 98% on room air, with a pressure of 100/60, pulse 82 per minute, and BMI 22. The second sound is normally split; nothing significant in the [unclear].

00:01:05Probably HCM only. We will rule out severe AS, and PH also, idiopathic PH. If we are considering pulmonary hypertension, S2 is normally split, there is no loud S2, so I would focus more on HCM only.

00:01:23FacultyBefore the ECG of the patient, will you do any other thing to bring out the hemodynamic abnormality?

00:01:33CandidateI would like to see the JVP also.

00:01:33FacultyNo, you said HCM. In HCM, will you do something dynamic at this stage?

00:01:38CandidateDynamic auscultation will help. Yes, I should have said that.

00:01:48FacultyWhat dynamic maneuver will you do for the murmur? What is the simplest? People will say Valsalva maneuver; [unclear] difficult. What is the simplest thing you can do at the bedside for evaluating the murmur? What is the simplest thing you can do for dynamic auscultation at the bedside?

00:02:10CandidateHandgrip. Handgrip will decrease the murmur.

00:02:13FacultyJust remember this: stand, squat, stand. That's all you have to do. You will be changing preload, you will be changing afterload, and maybe the murmur will come out at that time. If you want, you can combine it with handgrip, but actually it is stand, squat, stand. And you also have to do the same thing: you have to stand with the patient, squat with the patient, and stand up with the patient.

00:02:39CandidateThis is at normal standardization. Rhythm is regular, rate around 80. The P wave shows right atrial enlargement, and biatrial enlargement is there. And the axis is...

00:02:58FacultyFrom the...?

00:03:00CandidateYes, 30. There is LVH in the QRS, and in the lateral leads there is T-wave inversion of concentric hypertrophy, but the typical T waves of HCM are not there [unclear]. There are no VPCs; sinus rhythm is there; the AV interval is normal.

00:03:36Faculty[unclear] atrial enlargement?

00:03:44CandidateBecause of LV dysfunction: an increase in LVEDP, pressure, because of pulmonary venous hypertension, causing [it].

00:03:56FacultyCan hypertrophy affect the right side?

00:04:00CandidateYes.

00:04:06FacultyThe RA has to contract over time. The RA has to be shared by both the chambers [unclear].

00:04:30CandidateThe first image shows a parasternal long-axis view, transthoracic echo. There is obvious LA enlargement; the aorta is of normal size. There is concentric LVH, and [unclear]. On colour, there is turbulence across the LVOT in systole, and there is MR, posterior. In the M-mode of the same, in systole there is grade 1 anterior [motion]: SAM grade 1 is there.

00:05:06FacultyAnd how do you explain the mild [unclear]? How do you explain that? Where is it? How do you explain that? Is it physiological or is it pathological? [unclear] Is there any clue why AR is happening?

00:05:48CandidateMR is there.

00:05:53FacultyWhat?

00:06:08Unclear[inaudible]

00:06:45CandidateSir, the hypertrophy looks as if there is some subaortic membrane, no?

00:06:59Faculty[unclear] enlargement causing it. This happens sometimes even in multivalvular disease. You know, if there is AR and MR, you correct the MR and the AR will disappear totally. Actually, [unclear] they have reported AR in about 7% [unclear].

00:07:27CandidateLVOT findings: as seen in the last pages, grade 1 SAM is there, and the chamber dimension is slightly decreased. On Doppler of the LVOT you can see a dagger shape, with increased gradient in mid-to-late systole; the peak pressure gradient is around 70.

00:08:01FacultyWhat is the mechanism? What is the mechanism?

00:08:11CandidateSAM. Mid-systolic [unclear].

00:08:22Unclear[inaudible]

00:08:45CandidateApical four-chamber view [unclear]: there is LA dilation with MR, a posterior jet MR, and the anterior leaflet tip... No, it is not posteriorly directed; it is centrally directed.

00:09:04FacultySo the MR is not exclusively due to SAM; something else is there.

00:09:04CandidateLA [dilation]: atrial functional MR, sir. Because of LA dilation there is dilation of the annulus, causing atrial functional [MR], unless it is prolapse.

00:09:23FacultyWhat are the mitral abnormalities in HCM?

00:09:29CandidateElongation of the anterior mitral leaflet, and [unclear].

00:09:36FacultyWhat about the attachment of the papillary muscles?

00:09:39CandidateSupernumerary papillary muscles. Chordal abnormalities. This can be part of the [unclear], and an increased number of papillary muscles can [unclear] the closure.

00:09:54And in the five-chamber view there is some regurgitation jet, mild [unclear] regurgitation jet also. And in the RV-focused apical four-chamber view there is no significant [unclear].

00:10:24FacultyWhat about the interatrial septum?

00:10:24CandidateIt is aneurysmal and bulging towards the right side.

00:10:30FacultyYes. More like a dome shape. That causes the Bernheim effect, sometimes referred to as atrial Bernheim [unclear].

00:10:48So this is the [unclear] of the patient. We will comment as it goes. Can you come out with a differential? What is the differential of this? How do you sum this up?

00:11:02CandidateHCM, ASH subtype, with an obstructive gradient: obstructive HCM.

00:11:16FacultyThat tells [us] obstruction [unclear] gradient. We saw [unclear], and incidentally we got a respiratory variation also, which was [unclear]. There is quite a bit of variation to see in terms of both [unclear].

00:11:43CandidateYes, E waves. No, this is not because of the [unclear]; because the LVOT obstruction is dynamic, it can vary with the [unclear].

00:11:57Unclear[unclear] because of the dynamic variation. Yes.

00:12:35CandidateOnly in the central part there is some decreased strain, but there is increased [unclear] along the rest of the area: hypercontractile LV. Also, fitting into the [differential of] amyloidosis, strain [unclear] is decreased only on the septal side. So the septal movement is grossly diminished.

00:13:06FacultyMostly [unclear]. In which condition is it reversed? In which condition is it reversed?

00:13:13Candidate[unclear]

00:13:18FacultyAny other cardiomyopathy [unclear]? Is there a particular Doppler [unclear]?

00:13:47Candidate[unclear] there is no reversal.

00:13:55FacultyIs the patient in failure?

00:13:58CandidateThe IVC is dilated, 2 centimetres, and collapsing 50%.

00:14:06FacultyWhat will be the estimated RA pressure in this patient?

00:14:14Candidate[unclear] RA pressure will be 10.

00:14:21FacultyCollapsing 50%, 2 centimetres. Okay. What do you expect of MRI?

00:14:27CandidateOne is to quantify the scar burden, which is important for primary prevention of sudden cardiac death. Secondly, to rule out RCM; other physiology can be ruled out by MRI. The pericardium also can be evaluated, and the dynamic obstruction can also be further evaluated.

00:14:51FacultyBasically, CMR is for two things: one is diagnosis, second is prognosis, risk. What are HCM mimics? HCM mimics? Other causes of hypertrophy. What are the conditions?

00:15:16CandidateFabry disease, hypertension, AS, severe AS.

00:15:21FacultyOkay.

00:15:21CandidateNoonan syndrome.

00:15:28FacultyThis slide: how does this slide [look]? It shows a very particular characteristic. If you see, on the right side, there is nulling of the myocardium before the [unclear]; the reverse of the [unclear]. That means you still have myocardium [unclear] before the [unclear]. [unclear] that's what is described in the literature. So, the patient presented to us 4 months back. But on this MRI, you can see that the blood pool [unclear], the myocardium was dark, and [unclear] still had no contrast. [unclear]

00:16:44What about the...?

00:17:10CandidateScintigraphy. Bone scintigraphy.

00:17:23UnclearBoth.

00:17:44FacultyIn hemochromatosis, what type of scanning will you use? MR scanning; what is that called?

00:17:52CandidateT2 star.

00:17:52FacultyNow, which other organ will be black?

00:17:52CandidateLiver.

00:17:55FacultyLiver and heart will be black. Okay. Are they amyloid now?

00:18:09UnclearI think...

00:18:11FacultyManagement?

00:18:24CandidateTafamidis is not available in India. Or you have silencers [unclear].

00:18:42FacultyYou have to also differentiate whether it is wild type or genetic. Thank you. Thank you so much.

00:19:00We'll go ahead with the case presentation and then we'll...

08

Day 1 · 17-Oct-2026 · 14:44 hrs · 1 h 13 min

Mitral Stenosis Case Discussion

  • Mitral stenosis
  • Rheumatic heart disease
  • Mixed aortic valve disease
  • JVP and abdominojugular test
  • Echocardiography
  • Balloon mitral valvotomy
  • Rheumatic fever prophylaxis

In Day 1 Long Case 3, a candidate presented a woman with rheumatic multivalvular heart disease. She had undergone three balloon mitral valvotomies and now had recurrent exertional dyspnea, palpitations and pedal edema. The candidate's clinical diagnosis was severe mitral restenosis with moderate aortic stenosis, moderate aortic regurgitation, pulmonary venous hypertension, normal LV function and sinus rhythm. The examiners questioned the order of the history, the JVP and abdominojugular test, the apical impulse in mitral stenosis, peripheral signs of AR, murmur pitch, and the ECG, chest X-ray and echocardiogram (including low-gradient severe MS). They then discussed BMV versus double valve replacement and secondary prophylaxis of rheumatic fever, and concluded that the case had been presented well.

Case
Adult woman (age unclear in the recording); three balloon mitral valvotomies over 6 years from age 35 (last in 2013), then intramuscular and later oral prophylaxis, and later lost to follow-up; dyspnea on exertion for 4 years, worse for 3 months (NYHA class III); palpitations for 2-3 months; pedal edema for 2 months.
Diagnosis discussed
Rheumatic heart disease: severe mitral restenosis (2D mitral valve area 0.7, low gradient), moderate aortic stenosis and moderate aortic regurgitation (mild to moderate by pressure half-time), moderate pulmonary venous hypertension, normal LV function, sinus rhythm; suitable for BMV on echo, with reassessment of the aortic valve after the procedure.

Teaching points

  1. Present the history as one continuous story: the symptoms before the first balloon dilatation, then the procedures, then the current illness. Do not open with the past history.
  2. In the exam, quote a textbook (e.g. Abrams) as your source, not 'my teacher said'.
  3. If the JVP is not visible above the clavicle with the patient sitting, say that the mean JVP is not elevated. Do not work it out from an assumed 5 cm from the RA to the sternal angle. To see the waveforms, lower the patient until the top of the column shows in the neck.
  4. For the abdominojugular test, place the patient at the angle where the upper level of the JVP is just visible, not flat supine. Pressure can be applied anywhere on the abdomen, because the aim is to raise intra-abdominal pressure.
  5. The 'tapping apex' of mitral stenosis is a palpable S1, not the perpendicular thrust of a normal apical impulse, because the LV lies posteriorly and the RV in front. Do not call the two the same.
  6. In combined MS and AR, a pulse pressure above 40 with a diastolic pressure below 60 means the AR is not masked. A pulse pressure below 40 with a diastolic pressure above 60 suggests the MS is masking it. No cardiomegaly and a non-heaving apex point to MS as the dominant lesion.
  7. Describe murmurs by pitch, not frequency: low below 150, medium 150-300, high above 300. The mid-diastolic murmur of MS is low-pitched and is hard for recording stethoscopes to capture.
  8. Always report the mitral gradient with the heart rate. Severe MS with a low gradient (small 2D valve area, mean gradient about 7) is now common in older patients coming for BMV.
  9. Comment on the subvalvular apparatus only in a view that shows the leaflet tips down to the papillary muscles. Pressure half-time cannot be relied on for AR severity when MS is present, and severity should never rest on a single parameter.
  10. TEE is mandatory before BMV to exclude LA or appendage clot, with a possible exception for pregnant patients in sinus rhythm. A successful BMV raises the valve area by 50% or to more than 1.5 cm² without MR increasing by more than 2 grades.
Edited transcript 456 paragraphs · 8,605 words

00:00:03CandidateThe informant is the patient herself; she is reliable. Chief complaints: dyspnea on exertion for the past 4 years, increased over the past 3 months; palpitations for the past 3 months; pedal edema for the past 2 months. Since the past history is significant, I would like to describe it first.

00:00:19FacultyNo, tell me the symptoms again, please.

00:00:23CandidateShortness of breath for 4 years, more since 3 months; palpitations for 3 months; pedal edema for 2 months. The past history of the patient is significant, and I would like to describe it first. At 35 years of age, the patient was admitted with...

00:00:42FacultyYou are going back to the past history?

00:00:45CandidateYes, sir.

00:00:48FacultyYou don't have to go from past to present like that. You can start from the beginning, what she had, and continue till the present time. That also can be done.

00:00:52CandidateAt 35 years of age, the patient was admitted with dyspnea and underwent a balloon dilatation procedure [unclear]. She later underwent two more such procedures over a span of 6 years; the last procedure was in 2013. After this she was asymptomatic, but was advised to take an intramuscular injection every 21 days, which she took for 4 years. Later, due to local site pain, it was switched over to oral medication. She was followed up for 5 years after the procedure and was later lost to follow-up.

00:01:27For the past 4 years she has complained of dyspnea. Initially she was able to do all household activities but became dyspneic on exertion. For the past 3 months she has been dyspneic during household activities and on climbing one flight of stairs, progressing from NYHA class I to class III. The dyspnea increases on lying down and is associated with cough. She also complains of palpitations for the past 2 months, which occur during exertion and are not associated with giddiness, blurring of vision or loss of consciousness. The palpitations are regular in nature.

00:02:07She also complains of pedal edema, which decreased with medication. For the above complaints she visited an outside hospital 2 months ago, where she was evaluated, told that she would need surgery, and referred to this institute. There is no history of chest pain, loss of consciousness, abdominal distension, hemoptysis or any focal neurological deficit. There is no history of sore throat or joint pain in childhood.

00:02:36Obstetric history: P2 L1. She has a 22-year-old daughter; her 18-year-old son died 4 years ago in an accident. Both pregnancies were full-term normal vaginal deliveries, and the pregnancy and postpartum periods were uneventful. Family history is not significant. Summarising the case of a [unclear]-year-old...

00:02:58FacultyHold on, hold on. See, good, you started from the beginning, but before the balloon dilatation we want to know what symptoms she had at the time they opted for balloon dilatation, because that will give us an idea. You can even start with whether there was any rheumatic fever; you said there is no rheumatic fever. That is the way you can present in the exam, because in the exam you won't have time, especially if you are the fourth candidate presenting. So start with what happened before the balloon dilatation, then come to the balloon dilatation and whatever came after, because these are all related.

00:03:41I think it is not a separate history. I specifically asked how many years she had the disease process. It probably started as mitral stenosis and she underwent balloon valvotomy; from whatever you described there is no other possibility in this. So it is a continuum. As sir said, start from the initial symptom before the balloon and present from there. That will be better.

00:04:07CandidateShe had only dyspnea, sir.

00:04:07FacultyBut for how many years did she have dyspnea before the procedure?

00:04:11CandidateShe is not able to recall, sir, and she is not able to recall the exact year of the procedures either. She speaks Tamil and there was some language difficulty, sir.

00:04:19FacultyWere both done here?

00:04:19CandidateYes, previously done here only.

00:04:27FacultyThere was no PND history?

00:04:27CandidateNo, sir. Orthopnea is there, on lying down. No PND.

00:04:32FacultyWhat is the importance of having orthopnea? Which is the worse symptom?

00:04:37CandidateOrthopnea is worse. Immediately on becoming recumbent there is increased preload from the venous system, which cannot be accommodated by the heart. So orthopnea is more severe than PND.

00:04:53FacultyWith the palpitations you mentioned some associated history. What all did you say?

00:04:56CandidateI said there is no history of giddiness, blurring of vision or loss of consciousness.

00:05:04FacultyAny other history you will ask? Post-palpitation diuresis: in which condition will you get it? In supraventricular tachycardia?

00:05:13CandidateIn SVT the patient can have diuresis because of release of ANP from the atria. There can be diuresis after SVT, sir.

00:05:21FacultyOkay. Can you tell me the hemodynamic sequence? What is she currently having?

00:05:27CandidateShe has increased pulmonary capillary pressure...

00:05:33FacultyFor the last 4 years. The history is the problem.

00:05:33CandidateYes. She has predominantly increased LA pressure, and dyspnea because of increased LA pressure and pulmonary capillary pressure. Along with this she has palpitations, which are exertional. It looks like volume overload, so I am suspecting an additional regurgitant lesion which can cause this palpitation in MS. Even in MS, AF can be a cause of palpitation, but the palpitation she described is regular and on exertion. So I would like to keep a regurgitant lesion, aortic regurgitation, as one of my possibilities. My first differential would be MS with MR or AR, and the second would be pure MS with AF. For the palpitations, I asked her to tap them out; she was not able to, but she said they are regular.

00:06:25FacultySo which is more likely, MR or AR?

00:06:31CandidateMore likely MR, sir.

00:06:31FacultyIf after the BMV she was totally asymptomatic, why are you considering MR in this?

00:06:40CandidateIt could have progressed after BMV. She could have had grade 1 or grade 2 MR, which would have progressed over the years.

00:06:49FacultyAnd is that likely? Severe MS was opened up, with no MR at that point. More likely it can be aortic regurgitation.

00:06:52CandidateYes.

00:07:02FacultyWas there fatigue?

00:07:02CandidateShe describes dyspnea and fatigue together, sir. The pedal edema is because of RV failure, because of pulmonary hypertension.

00:07:16FacultyMS causing pulmonary hypertension, followed by pedal edema. Can it persist due to right-sided valve disease like TR?

00:07:22CandidateYes, sir, TR. If it is rheumatic, TS and TR can be there, which can cause pedal edema.

00:07:32FacultyWhen there is TS [unclear], dyspnea will not be there.

00:07:34CandidateYes, dyspnea will decrease.

00:07:41FacultyBut once TS sets in, right heart failure features will go up, but the output from the right side will decrease. Dyspnea will decrease, but fatigue will [unclear] with organic tricuspid disease. They purchase relief of dyspnea at the price of fatigue. That's what it is: breathlessness reduces, fatigue increases, right heart failure features go up.

00:08:15Okay, so with this history, what are the likely possibilities?

00:08:18CandidateLikely she has acquired valvular heart disease, rheumatic multivalvular disease. Initially she had RHD with MS and BMV was done. Now she is having mitral restenosis and AR.

00:08:34FacultyShe underwent BMV three times.

00:08:41CandidateSo I am saying it is mitral restenosis and AR, with PH and TR.

00:08:46FacultySo which one will you consider as the first possibility?

00:08:51CandidateThe first possibility is restenosis, sir: severe mitral disease with AR.

00:08:57FacultyBut you said MR was one of the first possibilities you thought of initially.

00:09:01CandidateI reconsidered when you said that post-BMV, in the acute phase, you may have MR, but it won't progress after that. In the multiple case series also, the MR did not progress over long-term follow-up.

00:09:16FacultySuppose the last BMV produced MR, and it was, say, moderate or mild. Can it progress?

00:09:26CandidateLess likely, sir.

00:09:29FacultyIt is unlikely, but if the patient [unclear: possibly 'is not on secondary prophylaxis'], the level of MR can go up, it can go on to the right heart, and as you say she can develop pedal edema. It can happen that way.

00:09:45What are the mechanisms of pulmonary hypertension in mitral stenosis?

00:09:51CandidateFirst, because of increased LA pressure: backward, passive pressure transmission. Second, reactive pulmonary vasoconstriction; over time there can be pulmonary vascular obliteration, and PVOD also can develop. Third, structural changes. These are the three reasons.

00:10:13FacultyWhen you do a BMV for severe MS with severe PH, among these mechanisms producing PH, what all will come down, and over what time period? What happens on table, after the procedure?

00:10:27CandidateThe LA pressure and pulmonary capillary pressure will decrease, sir. The LA-to-LV gradient also will decrease, the area will increase, and over time the PVR will eventually come down.

00:10:40FacultyYou said there are three components. The passive component will come down immediately, if it is a good BMV and there is no MR.

00:10:44CandidateYes, sir.

00:10:48FacultyThen what happens to the reactive component?

00:10:50CandidateThe reactive component also will come down over time.

00:10:52FacultySome will come down immediately, but it will take some time; people say it will come down further up to 6 months or one year. What happens to the structural damage that has already occurred? That will persist, or may actually progress. It will relatively persist and will not come down.

00:11:06What is the transpulmonary gradient?

00:11:12CandidateThe transpulmonary gradient is the difference between the mean pulmonary artery pressure and the left atrial pressure.

00:11:19FacultyHow much is normal?

00:11:19Unclear[Numbers unclear.] The mean transpulmonary gradient, not the diastolic gradient...

00:11:34FacultySo what happens in post-capillary, pre-capillary and combined PH? How do you know it is post-capillary PH?

00:11:39CandidateBy the pulmonary capillary wedge pressure and by measuring pulmonary vascular resistance, you can find out whether it is pre-capillary or post-capillary. In pre-capillary PH there will be an increase in the transpulmonary gradient and in the pulmonary vascular resistance; in pre-capillary the transpulmonary gradient will remain high, ma'am, and in post-capillary it will decrease.

00:12:07In post-capillary PH there is a rise in LA pressure and pulmonary capillary wedge pressure, so the transpulmonary gradient will be the same, normal. In pre-capillary the transpulmonary gradient will increase. In post-capillary the diastolic gradient increases, but the transpulmonary gradient remains almost the same.

00:12:34Unclear[unclear] Sir is not asking about after the procedure, but normally: how to differentiate pre-capillary from post-capillary PH?

00:12:42CandidateIn pre-capillary PH, the mean transpulmonary gradient will be increased.

00:12:47FacultyIn pre-capillary, correct. The transpulmonary gradient will be increased. Something else?

00:12:58What is 'second stenosis'?

00:12:58CandidateBecause of reactive pulmonary vasoconstriction there will be an increase in pulmonary hypertension.

00:13:06FacultyWhat happens? What pathology happens?

00:13:12CandidatePulmonary reactive constriction: pulmonary artery constriction.

00:13:19FacultyMain pulmonary artery, [unclear], or what? At which level?

00:13:27UnclearAt the level of the arterioles, the pre-arterioles.

00:13:35FacultyWhat is the hypothesis?

00:13:41CandidateWood's hypothesis.

00:13:41FacultyWhat is the [unclear] of Wood's hypothesis? It is one of the mechanisms described: the 'second stenosis'. What is second stenosis?

00:14:08CandidateExamination: a [unclear]-year-old female, oriented to time, place and person. Height 158 cm, weight 62 kg, BMI 24.8. Pulse 84 beats per minute, regular, normal volume, normal character; no radio-radial or radio-femoral delay; all peripheral pulses felt.

00:14:26FacultyWhat is the pulse rate?

00:14:26Candidate84, sir. Regular.

00:14:33Blood pressure: right upper limb 130/60 mmHg, left upper limb 132/64; lower limb systolic blood pressure 140. Saturation 99% in all four limbs. Afebrile. JVP is 2 cm above the sternal angle, with normal waveforms and normal respiratory variation.

00:14:56Faculty2 cm above the sternal angle?

00:14:56CandidateNo, sir, total 5 plus 2, 7 cm.

00:15:04FacultyYou saw the JVP in the sitting position or in which position?

00:15:08CandidateAt 45 degrees, sir. In the sitting position the JVP was not visible.

00:15:14FacultySo it is normal, not elevated. 2 is normal, up to 3. Revise the JVP. Tell the JVP again.

00:15:19CandidateYes, sir, JVP is 2 cm above the sternal angle.

00:15:25FacultyJVP elevated or not elevated?

00:15:25CandidateNot elevated, sir.

00:15:28FacultyOkay. In the sitting position it is not visible, so the JVP mean pressure is not elevated: in the sitting position you are not seeing it above the clavicle.

00:15:39How do you measure the JVP if the wave is above, near the angle of the mandible?

00:15:44CandidateIf it goes above the angle of the mandible in the sitting position, you can raise the hand. What is it called...

00:15:54FacultyWhose manoeuvre is it called? Okay, no need of the name.

00:15:54UnclearGaertner's.

00:16:00CandidateIdentify a basilic vein or some vein in the arm, lift the arm, and then measure the vertical distance.

00:16:07FacultyCan you make the patient stand, or sit with the legs dangling, if you are not seeing the upper level?

00:16:11CandidateYes.

00:16:14FacultyYou can do that. But this is enough: patient in the sitting position, not visible above the clavicle, so the JVP is normal. That's what it is. So what do you think is the mean venous pressure in this patient?

00:16:29Candidate7 cm of water. So it will be equal to around...

00:16:32FacultyWhy do you want water? How do you say 7 cm? You didn't see anything above the clavicle. Then how are you calculating?

00:16:39CandidateAt [unclear] degrees it was 2 cm from the sternal angle, so 2 plus 5 is 7, just adding the RA-to-sternal-angle distance.

00:16:48FacultyOh, at 45 degrees you used it. How did you measure RA to the sternal angle as 5 cm?

00:16:52CandidateAssuming.

00:16:54FacultyRA to sternal angle is 5 cm, which is not true in everyone, but assuming it to be fixed, from there it is 2 cm, so a total of 7 cm...

00:17:02Candidate...of water, which will be equal to 5 to 6.

00:17:05FacultyWhy do you want to bring water here? Where did you get water from?

00:17:09CandidateWater for blood, sir. Blood.

00:17:14FacultyThere is a conversion factor for that also. What I am saying is, in the exam, don't get caught on the JVP like this by quoting the sternal angle. Just say that in the sitting position I could not see the JVP, so the mean pressure is normal.

00:17:31CandidateIn that case, do the waveforms have to be seen or not?

00:17:34FacultyYes. You can say that at 45 degrees you saw the waveforms. The mean JVP is not elevated, which you have already mentioned, and then the waveforms. You can't say 'I have not seen the waveform in the sitting position.' You will have to put the patient down, make it appear in the neck and observe the waveform. You have to put the patient at an appropriate angle so that it becomes manifest in the neck.

00:17:58Also the abdominojugular reflux. How will you elicit it?

00:18:05CandidateWe should ask the patient to breathe normally...

00:18:05FacultyIn what position will you put the patient?

00:18:09CandidateSupine position at 45 degrees.

00:18:12FacultySupine position, correct?

00:18:12CandidateSupine, with the neck elevated at 45 degrees: lying down, neck at 45 degrees. Relax the abdomen; you can fold the legs to relax the rectus abdominis.

00:18:21FacultyIs the supine position correct or not? First, why do you want to fold the legs? What will happen?

00:18:27CandidateThe rectus abdominis will relax, so that when you press, they won't voluntarily guard.

00:18:30FacultyYou will increase the preload. No.

00:18:35Let me make it clear to everybody. Don't put the patient in the supine position while you are trying to do the abdominojugular test. Put the patient at an angle where the upper level is just seen. As you keep on decreasing the angle, at one particular point you will be able to see the upper level of the JVP, the mean pressure. Keep the patient at that particular point and then give the compression of the abdomen. There is a particular angle at which you have to keep the patient to make the upper level of the JVP appear.

00:19:04Where will you give the pressure?

00:19:08CandidateRight upper quadrant or centre; it can be given over the entire abdomen, sir. If the patient has a tender hypochondrium we avoid it; otherwise it can be given over the right hypochondrium or the centre of the abdomen.

00:19:20FacultyOur idea is to increase the abdominal pressure. You can give it anywhere; anywhere is fine. Okay, now how long will you give it, and what is the result?

00:19:28CandidateResponse: 30 seconds [unclear]. Any elevation, if it persists for less than 3 seconds, is normal.

00:19:33Faculty3 seconds?

00:19:38Candidate3 cycles.

00:19:38Faculty3 cycles of what?

00:19:42CandidateCardiac cycles.

00:19:42FacultyWhat is the length of each cardiac cycle?

00:19:45Candidate800 milliseconds, depending on the heart rate.

00:19:45FacultyNo, that's why: it depends on the compression you give, not on the cardiac cycle. Which book are you referring to? What's your reference for this? This question will always be asked in the examination. Speak from the books. Don't say 'my teacher taught'; he will not come to your rescue there. 'Told in our clinics' counts for nothing. You always have to quote from books. So which book is your reference?

00:20:16CandidateJonathan Abrams. [unclear] three cycles, he said.

00:20:26FacultyNow, what is the physiological basis of this abdominojugular reflux on compression?

00:20:28CandidateOn compression of the abdomen there is increased venous return to the right ventricle. A normal ventricle will be able to handle the increase in volume. If there is [unclear] in the ventricle or any impending RV failure, the ventricle won't be able to accommodate the extra volume, and this will manifest as a rise in the JVP.

00:20:46FacultyThat is the point. The extra volume coming to the RA will not be handled by the system, so the mean pressure will go up. That is the mechanism. Okay, go ahead.

00:20:59CandidateNo pallor, icterus, cyanosis, clubbing or lymphadenopathy. No peripheral signs of acute rheumatic fever. Pistol-shot sound over the femoral artery and Duroziez's murmur are present; these are peripheral signs of AR. The diastolic pressure was around 60.

00:21:13FacultyBut you said the pulse is normal, of normal character, and then you got a pistol-shot sound?

00:21:23CandidateWith the pulse, yes sir, normal character.

00:21:25FacultyYour volume is normal, but your BP is 130/60. The pulse pressure is 70; the pulse pressure is wide. And one more discrepancy: your lower limb blood pressure is only 140.

00:21:40Candidate140 approximately. Severe MS could mask the Hill sign. The discrepancy could be masked by the [unclear] stenosis, underestimating [unclear].

00:21:56FacultyWhen you have a combined lesion, it depends upon the severity. If the pulse pressure is more than 40 and the diastolic pressure is less than 60, then AR is not masked; AR is likely to be dominant. If the pulse pressure is less than 40 and the diastolic pressure is more than 60, it is likely that MS is masking it.

00:22:16Candidate[unclear] 64, sir. BP [unclear] 64, sir. I thought I was speaking into the mic.

00:22:29FacultySo that is 64 [unclear]. Okay, pulses, okay.

00:22:46Cardiovascular system: inspection and palpation. [unclear] You can't have pistol-shot sounds and Duroziez's murmur with [unclear] normal. They are among the sensitive signs. These are the only three signs of AR. What are the three signs?

00:23:06UnclearPeripheral signs: [unclear], and pistol-shot sound, or Traube's sign.

00:23:06FacultyThat's all it is. The others are all just for the sake of enumerating.

00:23:27What BP apparatus are you using?

00:23:33CandidateMercury sphygmomanometer.

00:23:38FacultyBut currently we don't have mercury manometers; now they are banned.

00:23:43UnclearIt was there here.

00:23:43FacultyNo, it is not available in most places. So muffling and so on, we are not able to make out. Okay, what is the mechanism of the usual Omron? How do they assess the blood pressure? What is the method called?

00:24:12CandidateOscillometric.

00:24:12FacultyHow do they derive the pressures?

00:24:16CandidateOnly the mean pressure can be derived, sir; the rest is calculated.

00:24:19FacultyThe mean is derived, and from that the systolic and diastolic are derived. Okay, so that is the problem. Okay.

00:24:28CandidateInspection and palpation: no visible pulsations over the precordium. The apex is localised to the 5th intercostal space in the midclavicular line; it is tapping type.

00:24:37FacultyIn the midclavicular line and tapping type? You are not feeling the apex at all?

00:24:49CandidateIt's best felt there. The apex is of normal character, sorry. Normal apex.

00:24:59FacultyNormal apex? No. What is the duration? What is it here? In your patient, is it a normal apical character, or tapping?

00:25:09CandidateNormal, sir: not hyperdynamic or heaving. It is normal. No cardiomegaly, no abnormal [unclear], with respect to both site and character of the apex.

00:25:26FacultyI think we need a little clarification here. What is a normal apical impulse and what is a tapping apical impulse? Are they both the same?

00:25:37UnclearYes. No.

00:25:40FacultyBoth are the same? Tapping and this one are both the same? No. Anyone? What is a normal apical impulse?

00:25:53UnclearThe lowermost, outermost, perpendicular thrust, confined to one intercostal space, medial to the midclavicular line.

00:25:58FacultySo these are the various components: it should be a perpendicular thrust, and it should last less than one-third of systole, less than 50% of systole. This is normal. Do you really get the lift in a tapping apical impulse in mitral stenosis? The LV has gone down.

00:26:20CandidateSir, only the palpable S1. The first heart sound is perceived as the apical impulse.

00:26:24FacultyYou can localise the sound and say that the apex could be here. So you don't get that perpendicular thrust, because the LV has gone down and the RV is in front.

00:26:35CandidateThat should be corrected, sir.

00:26:35FacultyCorrect. There is a difference between a tapping type of apical impulse and a normal one. This is one of the commonest mistakes I am seeing students of today make, because they are not exposed to many cases of mitral stenosis now. But this is a very common case. Go through all this very clearly, in detail; know about the various studies of rheumatic fever and the basics of mitral stenosis.

00:27:02Okay, so you got a normal or tapping apex. Hemodynamically, which among the lesions is ruled out?

00:27:12CandidateSevere AR is out. MS is the most dominant lesion here. AR might be associated, but MS is more dominant.

00:27:16FacultyDue to two reasons. What are the two reasons?

00:27:20CandidateThere is no cardiomegaly, and the apex is of [normal] character.

00:27:24FacultyOkay, go ahead.

00:27:26CandidatePalpable second heart sound; systolic thrill in the right second intercostal space.

00:27:34FacultySystolic, right second intercostal space? Okay.

00:27:43CandidatePercussion: the left second intercostal space is dull, the right heart border is retrosternal, and the left heart border corresponds to the apex. Auscultation: S1 is loud; S2 is narrowly split with a loud P2; no additional sounds; three murmurs.

00:28:06FacultyNo, wait. Just summarise the findings so far.

00:28:11CandidateLoud S1, narrowly split S2 with loud P2...

00:28:11FacultyNo, starting from the blood pressure.

00:28:13CandidateJVP is not elevated. Sinus rhythm. Wide pulse pressure with negative Hill sign [unclear]. No cardiomegaly; the apex is in the normal position, with a normal apical impulse. There is a palpable P2 and a thrill in the right second intercostal space. S1 is loud and S2 is narrowly split with a loud P2.

00:28:37FacultyFrom this, what is your possibility? You said thrill in the right second intercostal space: is it systolic or diastolic?

00:28:51CandidateSystolic thrill.

00:28:51FacultyOkay. From this, what do you suppose, before going to the murmurs?

00:28:56CandidateSignificant MS is there, sir, causing the loud P2, with a normal apex and normal cardiac size. And AR is there, with a flow murmur causing the thrill.

00:29:10FacultyCan a flow murmur cause a thrill in the aortic area? Even severe AR can cause a thrill, but you said severe AR is not there. But a thrill is there. Which thrill is it?

00:29:19CandidateThrill in the aortic area, sir, probably because of AS.

00:29:25FacultyHe has committed with the systolic thrill: probably because of AS.

00:29:34CandidateSince AR is only moderate, I am thinking there will be associated AS also in this case. That's why I want to keep AS and AR with severe MS as my diagnosis at this point.

00:29:49FacultySo AR and AS are also there. So what is the severity?

00:29:49CandidateAS is moderate, sir; AS and AR both are moderate, because the apex is not heaving type, the pulse [unclear] is not there, and the systolic BP is 130, so there is no decapitation. If AR were there with severe AS, there would have been systolic decapitation; that also is not there. But the thrill is there, so there is a functional obstruction to aortic outflow. So moderate AS, moderate AR and severe MS is what I would keep at this point.

00:30:24FacultyOkay, now go to the murmurs. Is the murmur conducted to the carotids?

00:30:24CandidateYes, sir. Coming to the murmurs.

00:30:35A grade 2/4 low-frequency, rough, rumbling mid-diastolic murmur heard shortly after A2...

00:30:41I told: S1 loud, S2 narrowly split with loud P2, no additional sounds.

00:31:05FacultyS1 is loud, you said. So what do you expect?

00:31:09CandidateS1 loud means the MS is more significant, and the valve is pliable, not calcified. The opening snap is not there.

00:31:24FacultyYou were expecting an opening snap?

00:31:24CandidateMaybe it is absent because of the post-PMV status.

00:31:28FacultyWhat happens to the opening snap in this, with AR?

00:31:28CandidateBecause of the increase in LVEDP, the opening snap can be decreased in intensity and can be absent also. The A2-OS interval can decrease.

00:31:47FacultyWill the A2-OS interval decrease, or...? The LVEDP increases, so the opening will be [unclear: possibly 'delayed'].

00:32:04CandidateMurmurs: a grade 2/4, low-frequency, rough, rumbling mid-diastolic murmur, heard shortly after A2 and of long duration, best heard with the bell of the stethoscope in the left lateral position with breath held in expiration, with presystolic accentuation.

00:32:21A grade 3/6 high-frequency, blowing, decrescendo early diastolic murmur, heard in less than 50% of diastole, best heard in the left second intercostal space with the patient bending forward and breath held in expiration. A harsh, rough, grade 4/6 crescendo-decrescendo ejection systolic murmur with early systolic peaking, heard in the right second intercostal space and radiating to both carotids and the apex. Three murmurs are there.

00:32:59There is no murmur of MR. Only the AS murmur is conducted to the apex, sir.

00:33:12Final diagnosis: acquired valvular heart disease of rheumatic etiology, with severe MS, moderate AR and moderate AS, with evidence of moderate pulmonary venous hypertension. No signs of infective endocarditis.

00:33:32FacultyWhat is the evidence of PVH in this patient?

00:33:39CandidateIn the history, she has recurrent dyspnea, and P2 is loud. These are the two main things. No signs of active acute rheumatic fever, with normal LV function, in sinus rhythm, and currently in NYHA class II.

00:34:03FacultyOkay, why do you say normal LV function?

00:34:03CandidateThe apex is normal. MS won't cause LV dysfunction so early. If AS and AR caused LV dysfunction, there would be a sustained apex, and the blood pressure is 130.

00:34:19FacultyCorrect. Okay, you say severe MS. How much LA pressure do you think there is here?

00:34:27CandidateArbitrarily, sir, above 20. Above 20 it is severe MS.

00:34:31FacultyAbove 20? Then are you hearing any crepitations?

00:34:39CandidateBut it will get adapted. In long-standing MS the pulmonary venous lymphatics will improve, and the patient is in the hospital, so diuretics will have been administered. That will mask it.

00:34:50FacultyOkay. No TR?

00:34:57CandidateNo TR.

00:35:01FacultyOr was it there, with the pedal edema she had complained of?

00:35:01CandidateThere is no pedal edema now, sir. She said it was there up to the mid-knee.

00:35:09FacultyWhich manoeuvre will you do to bring out TR, if any?

00:35:14CandidateInspiration can increase it; or leg raising, passive leg raising, can bring out TR.

00:35:23FacultyWhat is that sign called?

00:35:26CandidateCarvallo's sign, with inspiration, sir: it increases with inspiration.

00:35:31FacultyOkay. So: rheumatic heart disease, severe MS, moderate AR, moderate AS, moderate PH, normal LV function, not in heart failure.

00:35:49Okay, just one point I wanted to...

00:35:49CandidateNo, sir, the BP is 130. That's why moderate AR, not severe.

00:35:58FacultyJust one clarification for everybody; all the students are here. While describing a murmur, should we speak of pitch or should we speak of frequency? In the books it is low-pitched, medium-pitched and high-pitched, but you kept on saying frequency. Pitch is what you are hearing; frequency is what you are recording and assessing on an instrument. So confine yourself to the standard. What is the relation between pitch and the murmur normally?

00:36:35CandidateBlowing will be high pitch, harsh will be medium pitch, and low, rough will be low pitch.

00:36:45FacultyWhat about flow? Which will be low?

00:36:45CandidateIncreased flow means lower frequency, sir; increased gradient means higher. Gradient is directly proportional, and flow is inversely proportional, to the frequency or pitch.

00:36:56FacultyAortic stenosis?

00:37:01CandidateThe gradient is high, but, as in AR, the flow also is high. So it comes under medium.

00:37:09FacultyBut you say harsh. Do you mean high pitch or low pitch?

00:37:12CandidateIt is mixed; medium pitch.

00:37:14FacultyHarsh is mixed. What is low pitch, medium pitch and high pitch, frequency-wise?

00:37:26CandidateIt is given in [unclear]: less than 150, [unclear figures], 125 to 300, above 300.

00:37:37FacultySo you can remember it as: less than 150, 150 to 300, and above 300.

00:37:44The diastolic murmur of MS: you said frequency. What will its frequency be? Is it easy to record or difficult to record?

00:37:51CandidateLow frequency, sir. It is difficult to record.

00:37:54FacultyDifficult to record. Nowadays there is one [digital stethoscope, name unclear]. Have you seen that advertisement? You put it on and you get the ECG and the phono both at the same time. You will not get an MDM. You will get every other murmur except the MDM, because it is low frequency, low pitch. Okay, you proceed further.

00:38:22CandidateShe is symptomatic, functional class II right now, and she has palpitations. So I would like to confirm the palpitations and rule out paroxysmal AF in her, and go ahead with an ECG, echo and X-ray to characterise the lesions properly. In this case, if the mitral valve is still pliable and BMV is anatomically feasible, then, if the AS and AR are moderate, only BMV. If either the AS or the AR needs intervention, or BMV is not feasible, then she will have to go for DVR.

00:39:05FacultyThat we will discuss when you come to management. Okay.

00:39:13So what do you expect on the ECG?

00:39:13CandidateOn the ECG I would expect the MS findings to predominate. The rhythm will be sinus, because it is regular, and I would expect LA enlargement.

00:39:25FacultyAnd what about the axis?

00:39:31CandidateThe axis would be...

00:39:34FacultyThere are two reasons why the axis should be in a particular direction.

00:39:34CandidateSince AS and AR are both there, with both concentric and eccentric hypertrophy, I would say left axis deviation.

00:39:40FacultyYou said the dominant lesion is mitral stenosis, with PH. Mitral stenosis causing RVH and PH gives right axis deviation. That will determine which is the dominant lesion.

00:39:55Do we expect LVH in this patient?

00:39:55CandidateNo, sir, less likely, because MS is more predominant.

00:40:05FacultyWhat is the earliest ECG sign of MS?

00:40:14CandidateLA enlargement.

00:40:16FacultyCorrect. But before that? What about the P-wave axis?

00:40:24UnclearThe P-wave axis should be less than [unclear] deviation of P; P inverted in lead III. That is the earliest sign.

00:40:38FacultyOkay, take up the investigations.

00:40:43CandidateWe'll go to the investigations, sir.

00:40:47FacultyYou have exceeded the time, is it? Okay. Show the ECG.

00:41:30So you said you will go ahead with BMV if the aortic valve lesions are not that significant. Will there be a problem in doing the BMV?

00:41:42CandidateAfter BMV the output will increase. The MS might be masking both the AS and the AR. So we should be careful in assessing; we can't use the normal methods.

00:42:00FacultyHow do you assess AS severity in the presence of severe MS?

00:42:09CandidateThe valve area: the aortic valve area by planimetry, and the continuity equation would be better in this case. Other estimates, the Doppler gradients, will be affected by the severe MS and the low-flow condition. If there is a discrepancy between the flow and the area, then we have to approach it like low-flow, low-gradient AS.

00:42:36FacultyYou have done BMV, or assisted? How do you know from the LA pressure tracing whether your BMV is going to be successful or not?

00:42:47CandidateFrom the LA tracing, whether the results will be good or not, after...

00:42:53FacultyBefore. You have got the LA pressure tracing, not LA-LV, before doing the BMV, from the hemodynamic monitor. Okay, we'll come to that later.

00:43:07Candidate12-lead ECG with half standardisation, 25 by 5...

00:43:07FacultyVery good, half standardisation.

00:43:15CandidateRegular rhythm, heart rate of around 80 beats per minute. P wave...

00:43:23FacultyThis is standard, no? This is normal standard.

00:43:26Unclear25 by 5 is written below.

00:43:31FacultyNo, this is half standard. Okay, go ahead.

00:43:35CandidateRegular sinus rhythm. P wave: there is left atrial enlargement, according to the Morris index. Then the QRS axis is...

00:43:59FacultyMacruz index and Morris index you should know. Yes, okay, go ahead.

00:44:03UnclearThe P wave will be double this; that is half standardisation.

00:44:07FacultyBut is it really half standard? The standardisation box is there on the left, it's half standard, and at the bottom also it is written 5 mm per millivolt. Oh, 5 mm is written. Okay. It is written; that's right.

00:44:42Yes, okay. There is obvious left atrial enlargement, and the right atrium also is enlarged; biatrial enlargement is there. The axis is...

00:44:55CandidatePlus 40 degrees.

00:44:55UnclearThen 40, yes. aVL is [unclear]... 15 to 30... [unclear] 55, but towards the positive side, around 15.

00:45:22CandidateThen there is LVH also, sir. Comparing V2 and V6, according to the Sokolow-Lyon index, LVH is there.

00:45:29FacultyAnd you want to consider the severity of the aortic valve disease?

00:45:37CandidateYes.

00:45:41FacultyBut the BP, the pulse, everything is against it. So by ECG, LVH is there. Okay. But is it a pressure overload or a volume overload?

00:45:54CandidateThere's no Q wave; this is pressure overload.

00:45:57FacultyBut the T is not inverted.

00:45:57CandidateT is not inverted. There is no strain.

00:46:13FacultyOkay, I don't think we can get anything more. It is sinus rhythm with no [unclear], no right axis deviation, no RVH; so it is sinus rhythm with only some signs of LA enlargement. Okay, next: X-ray.

00:46:31When was this taken? Describe this X-ray.

00:46:35CandidateChest X-ray, PA view, overexposed, with rotation to the right side.

00:46:40FacultyAP view, taken when she was in failure in hospital. First describe the lung fields.

00:46:44CandidateIn the lung fields there is a bat-wing appearance: grade 3 pulmonary venous hypertension, pulmonary edema. The CT ratio, although it is an AP film, is around 0.65.

00:47:10The right atrial border extends only two intercostal spaces; there is no obvious right atrial enlargement... It's two and a half intercostal spaces, so right atrial enlargement is there. Left atrial appendage: LA enlargement is there. Splaying of the carina is not seen; the bronchus is not clearly visible. There is no double density. Both RA and LA enlargement are there, and cardiomegaly of LV type is there, with pulmonary edema, grade 3 PVH.

00:47:51FacultyAny other X-rays from when the patient was not that sick?

00:48:13Okay, yes, this is much better. This is much better. This is PA view; this is also overexposed. What are the situations in which this patient can present with the previous X-ray picture?

00:48:25CandidateAF, severe anemia; AF is the most common condition.

00:48:32FacultyOkay.

00:48:36CandidateIn this patient, what is the date of the X-ray?

00:48:42FacultyThe 14th; recent only.

00:48:42CandidateOkay. The cardiothoracic ratio is 0.65. There is cardiomegaly of LV type, right atrial...

00:48:53FacultyNo, I don't think it is 0.6. LV type... Stop going down to the [unclear].

00:49:04CandidateRight atrial enlargement is there, and straightening of the left heart border. Coming to the lung fields, grade 1 cephalisation is there: grade 1 pulmonary venous hypertension.

00:49:15FacultyIs there LAE or not? Is there LAE?

00:49:22CandidateThere is straightening of the left heart border, but the carina... and the double density is not clearly seen.

00:49:26FacultyDouble density is not very clear.

00:49:37Please explain: so the aorta is dilated?

00:49:42CandidateThe descending aorta.

00:49:47FacultyWhy are you seeing the descending aorta there? Okay, fine.

00:49:59Okay, any calcification you will look for in this patient, with a very long-standing history of mitral stenosis?

00:50:07CandidateCalcification in the mitral area; the left atrial wall also can be calcified in very old patients with long-standing mitral stenosis.

00:50:17FacultyCan some calcification occur in the lung fields in very chronic mitral stenosis, with chronic pulmonary venous hypertension? What will happen? What is that called? It is rare only, very rare.

00:50:36CandidatePulmonary hemosiderosis can occur.

00:50:36FacultyOkay.

00:50:45Okay, from the ECG, what is your [unclear]?

00:50:49CandidateYes, I would like to evaluate the AS. Maybe the severe MS was masking the AS severity in my case, but the apex was still not heaving type.

00:50:57FacultyOkay. The position of the apical impulse and its character is the most important determinant.

00:51:01CandidateYes. In both AS and MS it would have been the same position. But the thrill was there in the right second intercostal space; that's why I kept AR, AS and MS.

00:51:16FacultyOkay, go to the echo.

00:51:20CandidateTransthoracic echo, parasternal long-axis view. There is concentric LVH; the AML is...

00:51:27FacultyHow will you know whether your BMV is going to be successful or not from this view?

00:51:34CandidateThe pliability: the doming and pliability of the valve can be assessed in this view.

00:51:46FacultySo first of all, in diastole, the separation between the two tips of the anterior and posterior leaflets [unclear]. What is the normal, or the value below which it is considered severe mitral stenosis?

00:52:01Candidate5 mm [unclear].

00:52:07Unclear[unclear figures: '0.5, 0.7, 0.8'].

00:52:07FacultyYes, okay. Read this echo.

00:52:16What's this first one? No, okay, read this echo. Which chambers are enlarged?

00:52:25He went to concentric LVH; that was the first thing he was telling. The most important thing here is the dilated LA, and the aortic valve is affected.

00:52:33CandidateYes. There is doming of the AML and restricted movement of the PML. Small, spotty calcification at the tip of the PML.

00:52:50FacultyWhile you are trying to explain, don't go to the concentric LVH here. The main pathology has to be explained first, rather than going to concentric LVH. What about the RV? Is it dilated? Because you are considering TR.

00:53:04CandidateYes, sir. I would have to measure it, but it looks dilated.

00:53:09FacultyThe RV is not that dilated. But RV function definitely is normal; it looks normal only. Okay, go to the next one.

00:53:20CandidateColour Doppler across the mitral and aortic valves. There is mild subvalvular disease, mild to moderate...

00:53:33FacultySevere subvalvular disease? No. One more important thing: you are planning to do some intervention. Are you happy seeing this view? By the way, I will not comment on the subvalvular apparatus in this view; I am hardly seeing it. You have to see the leaflet, from the tip of the leaflet to the tip of the papillary muscles, the papillary muscles and the ventricle; then I will comment on the subvalvular apparatus. You need the information on all this before you can comment. Do not comment on it here.

00:54:09The most important thing here is the long jet of AR, crossing the tip of the AML and going right up into the ventricle. You have to open it up; then you have to see the LVOT properly and take the width. And there is no mitral regurgitation; that is the one that matters when you are planning BMV. The valve is not that calcific, the AML is still doming, there is reduced leaflet separation, and MR is not there, in this view at least. Okay.

00:54:46For the AR jet, is the width important, or is the length more important?

00:54:52CandidateThe width: the width-to-LVOT ratio is more important.

00:54:52FacultyHow much ratio?

00:54:52Candidate65%. More than 65% is severe AR.

00:55:00And there is concentric LVH. Parasternal short-axis view: concentric LVH; there is commissural fusion, bicommissural fusion, with thickening of the mitral leaflets and calcification. There is no dense calcification of the mitral valve; some specks of calcification are there in the AML. The commissures are free of calcification, and both commissures are fused. This looks suitable for BMV.

00:55:30FacultySuitable for BMV.

00:55:30CandidateI would like to confirm that there is no MR [unclear] and no clot in the other images.

00:55:40FacultyOkay, forward. Which is more reliable for the mitral valve: Doppler, or planimetry?

00:55:45CandidatePlanimetry. Short axis at the papillary muscles: LV function is normal.

00:56:01FacultyOkay, forward.

00:56:16Yes, what are you seeing?

00:56:16CandidateThis is the short-axis view at the aortic valve. The leaflets appear slightly thickened.

00:56:26FacultyIs it restricted? You said aortic stenosis. You should see the opening, not the closure.

00:56:35CandidateThe aortic valve area is decreased. There is no calcification of the aortic valve [unclear].

00:56:40FacultyWhat other important structure are you seeing? You are planning a procedure, and that will help.

00:56:48CandidateThe left atrium and appendage are seen; there is no clot.

00:56:52FacultyYes, the appendage is very clearly seen; it is free of any clot. Okay. The aortic valve is not grossly thickened, but it is thickened, with restricted opening. Okay, what is that structure? The other white structure you are seeing?

00:57:08UnclearSmall... okay.

00:57:13FacultyYou are planning balloon mitral valvotomy again. Would you like to do a transesophageal echo or not, as she is in sinus rhythm, in this case?

00:57:23CandidateTEE, to rule out clot.

00:57:26Faculty[unclear] is not able to see the image properly. It is mandatory to do a TEE before, except probably in pregnant patients undergoing BMV in sinus rhythm, where you can probably avoid it. Otherwise it is mandatory to do a transesophageal echo to rule out clot. And we are doing it now for the second or third time.

00:57:46CandidateYes, and she had a history of palpitations, and we don't know whether she had paroxysmal AF, especially with this [unclear].

00:57:56FacultyThe small structure, the small white structure... Left, [unclear]. Yes, go ahead. Okay.

00:58:13Apical four-chamber. Yes, go ahead.

00:58:20CandidateApical four-chamber view: LA enlargement and concentric LVH. Mitral valve: there is thickening of the anterior leaflet and restricted posterior leaflet motion. Subvalvular disease is moderate: moderate subvalvular thickening. I would have to see the colour Doppler.

00:58:43FacultyThe LVH is not very gross. Borderline. Yes, okay, go ahead.

00:58:52CandidateSevere... There is increased turbulence in systole in the subvalvular area, and the AR also [unclear]; this is not focused completely.

00:59:05FacultyOkay. Show the Doppler, the mitral Doppler.

00:59:18CandidateContinuous-wave Doppler across the mitral valve: mean gradient of around [unclear].

00:59:23FacultyYou have reported the mitral valve gradient. What important thing is missing? It could be calculated, but it has not been. What is it? V max, V mean, everything is written, but one thing is not written.

00:59:38CandidatePressure half-time.

00:59:42FacultyNo. See, the mitral valve gradient always depends upon the heart rate. You have to mention the heart rate. Okay. Something is written. Okay, 69. Okay, here it is.

01:00:09CandidateSir, the mitral valve gradient is not that high.

01:00:09FacultyYes. What is the orifice area?

01:00:19CandidateThe 2D valve area was not done.

01:00:19FacultyNo, it must have been done.

01:00:23UnclearThe measured view was not that one.

01:00:28FacultyWhat does it say? 0.7. Okay.

01:00:36What is low-flow, low-gradient mitral stenosis?

01:00:39CandidateIn cases like this patient, with a low heart rate, the stenosis is severe, but because of decreased flow the gradient is low, only 7 in this condition. On exercise we can again assess for symptoms, murmur and gradient.

01:00:55FacultyAgreed. There is an entity called low-gradient MS; there are a lot of series on that. Nowadays, when we do BMV in our hospital, the patients are all above 60. The young patients with very pliable valves, that era is over. Now they all have low gradients with a severely reduced 2D valve area.

01:01:22What is the severity of AR?

01:01:22CandidateAR is moderate in this: the jet is occupying less than 50% of the LVOT. To quantify it, I would like to see the pressure half-time and flow reversal.

01:01:41FacultyOkay, they have given you the pressure half-time.

01:01:47Candidate430. It is moderate only; less than 200 is severe.

01:01:51FacultyAround that it is mild only; mild to moderate.

01:01:58Okay, so what is this?

01:02:02CandidateThis is the AS Doppler: around 32. Since it is low flow and the cardiac output is low... 4 metres [unclear].

01:02:08FacultyHow can it be that, sir? How do you know from this tracing that it is not flow-related but organic aortic stenosis?

01:02:17CandidateIt could be due to the AR flow. The shape of the envelope...

01:02:22FacultySo, if it is [unclear]-shaped and peaking in the early part of systole, it is probably not that severe; but if it peaks late [unclear]... Clinically also you will get a slow-rising, late-peaking murmur. So it is like an open envelope and a closed envelope, as we call it.

01:02:55Do you think the AS is severe or not severe in this case?

01:02:59CandidateNot severe. The murmur is grade 4/6, but it is early peaking, so flow could also be contributing, and the mean gradient is only 32 [unclear: '30, 32']. The AR can increase the flow. So it comes under moderate only: less than 40.

01:03:14FacultyOkay, so what is your final diagnosis after all this?

01:03:24There's a question on the group: can he use the pressure half-time for AR when MS is there? Somebody asked on the group: is it valid?

01:03:31UnclearNo, it cannot be used [unclear].

01:03:35FacultyI think it cannot be relied on. Can pressure half-time be relied on for AR severity when MS is there? No, it is difficult. MS is there, so we can't use it; you couldn't rely on that. Also, you can't depend on one parameter. You should not decide on a single parameter.

01:03:55Okay, so what is the final diagnosis? I think our time is going.

01:03:55CandidateSevere MS, moderate AS, moderate AR, normal LV function, in sinus rhythm, with moderate pulmonary venous hypertension.

01:04:10FacultyOkay, what will you do for this patient?

01:04:10CandidateI would consider BMV for her symptoms, but there is a risk that the [unclear] can become significant after BMV. We should reassess the patient.

01:04:26FacultyOtherwise what will you do? If you are not considering BMV, what is the other option?

01:04:34CandidateDVR, sir.

01:04:34FacultyWhat is the mortality of DVR?

01:04:39CandidateAround 9 to 10%.

01:04:39FacultyOkay. What is the longevity of a patient who is coming for DVR? I don't know: 50 years, this socio-economic background, 10 years, 20 years? More than 60% mortality after DVR; high mortality on follow-up.

01:05:02On the LA pressure tracing, when you see it before BMV: if you see a prominent c wave, just as you see on the right side, it means your balloon [unclear]. The presence of the c wave tells you that the descent of the base of the mitral valve is quite good; hence it will open well. That's what you feel. There are other parameters also: DE amplitude more than 18 by M-mode, and many other parameters.

01:05:31Okay, this patient is going home after a BMV; you have done a successful BMV. What is a successful BMV?

01:05:36CandidateAfter BMV the valve area should increase by 50%. Valve area 0.7 and a gradient of [unclear]... An area increase of 50%, or more than 1.5 cm², without any increase in mitral regurgitation of more than 2 grades.

01:05:53FacultyOkay, and this patient is going home after BMV. What is your prescription?

01:06:00CandidateFor heart rate, a beta-blocker after BMV.

01:06:00FacultyBeta-blocker [unclear]. Second option: there are other drugs given for rate control in mitral stenosis other than beta-blockers.

01:06:08CandidateCalcium channel blocker.

01:06:11FacultyCalcium channel blocker. Any other drug tried in India? There are so many Indian studies.

01:06:15CandidateIvabradine.

01:06:18FacultyIvabradine. There are two or three Indian series; all of you should know them.

01:06:23Okay, beta-blocker. Then, not for this case, but I will just ask you for aortic stenosis: what is the value of the dimensionless index in the assessment of severity?

01:06:31Candidate0.25. If it is less than 0.25, it is severe AS.

01:06:35FacultyOf course, it will not be that here.

01:06:40Okay, what are the drugs, you said?

01:06:40CandidateBeta-blocker; then, since she has pulmonary venous hypertension, I would prefer diuretics also; then, if sinus rhythm... if AF, then [unclear].

01:06:51FacultyNo, these two... We don't give prophylaxis?

01:06:55CandidateProphylaxis, considered lifelong.

01:06:59FacultyWhich is the best prophylaxis: intramuscular, or is oral better? What is the event rate? How much will you give?

01:07:08CandidateLess than 27 kg...

01:07:08FacultyNo, she is an adult. You said BMI 24.

01:07:12Candidate1.2 million units every third week, sir; every 21 days.

01:07:16FacultyOkay. Suppose it is not available; then the next best? It is not available, and in Kerala nobody is giving that. Then oral penicillin. What are the two preparations available, and which is better?

01:07:34CandidatePenicillin V and penicillin G. Penicillin V is preferred: 250 mg BD [unclear: '500 mg BD'].

01:07:40Unclear[unclear] for chronic prophylaxis.

01:07:45Candidate400 mg BD, sir.

01:07:45Faculty400 mg BD is penicillin [unclear]... TID? No, that is why it is called BD. Then why are you giving it BD? The name itself is printed [unclear]. Then why are you giving it BD?

01:08:01CandidateSir, you said you give 400 mg BD for prophylaxis; the other is for treatment.

01:08:04FacultyTreatment, okay. If that is not available, then?

01:08:09CandidateAzithromycin, erythromycin.

01:08:09FacultyNo, penicillin: there are two preparations. Penicillin G can be given. What is the dose? Which is available?

01:08:18Unclear[unclear brand name] is the one which is available. Now it is called Pen[unclear], 250 BD.

01:08:24FacultyPenicillin is not available, or she is allergic to penicillin. What else?

01:08:31CandidateNext, azithromycin is not [unclear]. Sulfadiazine is recommended, [unclear: possibly 'one gram'].

01:08:42FacultyOkay, I will... thank you.

01:08:45But what are the two or three recent trials in RF secondary prophylaxis that you named?

01:08:50CandidateRecently, in 2022, the GOAL trial compared prophylaxis in subclinical carditis. The recurrence rate of rheumatic fever was 8% in those who did not receive any prophylaxis and 0.8% in those who received it. In both arms the regression was the same; it didn't change. The regression was the same, but the recurrence was 8% versus 0.8%. The [unclear] trial compared IM with oral, sir; that study has yet to be published.

01:09:22FacultyPublished. And what's the alternative hypothesis of rheumatic fever? Have you read that?

01:09:30CandidateThe alternative hypothesis: besides molecular mimicry, the older alternative hypothesis is that it is inflammatory, not just an autoimmune reaction. There is an article which [unclear].

01:09:43FacultyWhat is the newer advance in chronic prophylaxis?

01:09:47CandidateVaccines...

01:09:47FacultyVaccines are being developed, but not that: penicillin prophylaxis. What is depot penicillin?

01:09:52CandidateThere are some penicillin preparations being tried, once in 3 months; you can give one for up to 6 months. It is given as a depot injection.

01:10:02FacultyWhat is the role of colchicine?

01:10:09CandidateIf rheumatic pericardial involvement is there, then you can...

01:10:09FacultyNo, in rheumatic heart disease. Any study done from any centre? An Indian centre?

01:10:21CandidateA trial from GB Pant [unclear]; it came in JACC last year, in all RHD.

01:10:28FacultyYou said azithromycin. Any RCTs done on azithromycin in rheumatic fever?

01:10:36CandidateNot that I know.

01:10:36FacultyWe have done an RCT on azithromycin once weekly, but it was a failure. It was a negative trial; we have published it in the Indian Heart Journal. [unclear] two patients out of [unclear] had recurrence of throat infection, not rheumatic fever. That was a failure, right?

01:10:54Okay, but your assessment: I think he has said it very well. It is a simple case, no doubt, but in a simple case people always falter, and it is a little difficult in the exam. But you have answered very well. Very good. Your [unclear] also is very good; very good and confident. I think this is the way you should present. Good presentation. Come on, give him a big hand.

01:11:21CandidateThank you, sir.

01:11:21FacultyThanks.

01:11:21CandidateThank you, sir. I thank all the teachers for this.

01:11:26FacultyI am really sorry, sir, we are going to make you talk again. Can you just continue the OSCE? Sorry for this. And all of you will have to answer now, so that he talks less. We will fix the laptop. The next presenter will be presenting after the tea break; he is here. The presenter of the last case is also around. She is here, right? She is there.

01:12:21They will not get a break, sir, but they'll talk more this time. I'm really sorry for this.

09

Day 1 · 17-Oct-2026 · 15:57 hrs · 38 min

Cardiology OSCE and Imaging Spotters Session 2

  • OSCE technique
  • Chest X-ray
  • Coronary angiography and OCT
  • Endomyocardial fibrosis
  • Cardiac catheterisation and oximetry
  • Congenitally corrected TGA
  • Hypertrophic cardiomyopathy
  • Arrhythmia and antiarrhythmic toxicity

The second OSCE and imaging-spotter session of Day 1 continued the format of the first, with candidates describing chest X-rays, coronary and ventricular angiograms, OCT, echocardiograms, oximetry data and an ECG strip while the examiner questioned, corrected and expanded on each finding. Stations covered unilateral pulmonary oedema, the meniscus sign of acute coronary occlusion, a ball-valve left atrial thrombus, a bioprosthetic pulmonary valve, an old epicardial pacing lead, coarctation of the aorta, recurrent endomyocardial fibrosis, the PDA balloon occlusion test, oximetry in congenitally corrected TGA, the JOMIVA balloon, a bidirectional Glenn shunt, Doppler pitfalls in obstructive HCM and an automatic tachycardia unmasked by adenosine. The examiner also advised on exam conduct, discussed theories of EMF aetiology, and closed with a question on flecainide toxicity before the tea break.

Teaching points

  1. Unilateral (usually right-sided) pulmonary oedema should prompt consideration of acute severe MR with an eccentric jet directed into one set of pulmonary veins.
  2. Contrast staining at an occlusion with contrast outlining both sides of the thrombus (meniscus sign) indicates acute coronary occlusion, unlike the tapering stenosis of a chronic total occlusion.
  3. A ball-valve thrombus is classically associated with severe mitral stenosis; when the mitral valve opens well with a dilated atrium, atrial fibrillation is the likely substrate, and the symptom is postural variation of dyspnoea.
  4. On the chest X-ray, keep describing systematically (situs, heart size, prosthetic material); silence prompts the examiner to ask more questions.
  5. Epicardial leads placed in childhood are a clue to prior congenital heart surgery; acceptable implant thresholds are slightly higher than endocardial (1.5-2 V accepted), impedance is similar and battery drain is greater.
  6. A near-normal-looking chest X-ray should prompt a search for coarctation: figure-of-3 sign, rib notching, and the reverse-3 (E) sign on barium swallow.
  7. An obliterated LV apex with a clenched-fist appearance on ventriculography indicates endomyocardial fibrosis; diastolic MR occurs when LV end-diastolic pressure is high.
  8. A balloon occlusion test of a PDA in pulmonary hypertension assesses how much the pulmonary artery pressure falls, to judge reversibility and operability; balloon sizing is no longer done for PFO or ASD.
  9. Normal venous saturation is 65-75% and left-sided saturation 95-100%; in congenitally corrected TGA the LA connects to the RV and aorta, the RA to the LV and pulmonary artery, and the aorta is L-posed with pulsation at the left upper sternal border.
  10. In obstructive HCM, do not trace the MR envelope as the LVOT gradient; the true LVOT signal is the dagger-shaped one. For flecainide toxicity give hypertonic sodium bicarbonate and 20% intravenous lipid emulsion; adenosine should not be given.
Edited transcript 137 paragraphs · 3,662 words

00:00:03FacultyBack. That's possible; there could have been a migration. We'll start from the middle; that's safer.

00:01:32Is the chest X-ray showing? Okay. That mic has a light, so I can see in the dark also.

00:01:49CandidateNon-homogeneous opacities in the right upper zone, the right lower zone and the left mid zone. There is straightening of the left heart border.

00:02:16FacultySo obviously there are significant shadows on the right side, not on the left side.

00:02:20CandidateYes, sir.

00:02:20FacultyOkay, so what is it? It is a rare thing, but it can happen. You have just seen one X-ray with bilateral shadows, the patient we just discussed. This patient has right more than left; it is a unilateral pulmonary oedema. So what is the commonest condition?

00:02:57CandidatePulmonary vein stenosis.

00:02:57FacultyOkay. But the most common condition is acute severe MR with an eccentric jet which goes to the pulmonary veins of one side, producing pulmonary oedema mostly on the right side. That is the most common condition. There are other conditions you can read about, where the oedema is in one abnormal lung or where one lung is spared. So if there is right-sided oedema, think of acute MR. That is the one we have to think of.

00:03:35These two are from the same patient, taken within a few seconds of each other. Go on describing.

00:03:44CandidateAngiogram showing a proximal RCA occlusion.

00:03:44FacultyVery good. Are you seeing something here? And what do you see in here?

00:04:02CandidateThere is staining in the second angiogram.

00:04:02FacultyOkay, so what does it indicate? Do you see any particular appearance here?

00:04:18CandidateChronic. CTO.

00:04:21FacultyCTO? Why should it stain? Staining indicates what? Staining indicates a recent thrombus, where the contrast gets in and stains it. So what is this appearance called, where the contrast goes to both sides of the thrombus? What is that sign called?

00:04:50The faculty are answering, but this is called the meniscus sign. Okay, meniscus sign. Can you see it if you look closely? There is a thrombus, and on both sides of the thrombus there is contrast. So this is indicative of an acute occlusion of a coronary artery. You can see that the stain is there at the point where the meniscus is. So this is the meniscus; you must have learned in physics what a meniscus is. This is different from a chronic occlusion, where mostly it will be a tapering type of stenosis.

00:05:29Can the next person read this? The OCT.

00:05:37CandidateCalcification.

00:05:45FacultySame patient. This is the same patient's OCT. At this point, you see what is there inside? This is the same patient after the angioplasty, one of our patients done recently. See that; what is that? Is it a red thrombus or a white thrombus? Which one produces a shadow? Okay. Next.

00:06:17Who is having the mic? Sorry, somehow it is not playing continuously.

00:06:33CandidateSir, parasternal long-axis view showing a hypermobile structure in the atrium, going into the inlet and coming back, going into the LV and then back.

00:06:58FacultyIt is not going into the LV, no? Repeat. Where is it getting obstructed?

00:07:13CandidateIt is obstructing the mitral valve.

00:07:17FacultySo what is that called?

00:07:22CandidateBall-valve thrombus.

00:07:22FacultyBall-valve thrombus, okay. So what is the most common condition? But what about the mitral valve here; what is the aetiology?

00:07:39CandidateRheumatic, sir.

00:07:39FacultyRheumatic? You have seen rheumatic valves; is it like this? There is no rheumatic involvement here. The mitral valve looks okay; it is opening well. The mitral leaflet separation is around 20 millimetres, and the atrium is dilated. Most likely it is atrial fibrillation. So this is a ball-valve thrombus which is producing obstruction. What will be the symptom in this patient?

00:08:04CandidatePostural variation of dyspnoea, due to obstruction of the mitral valve.

00:08:04FacultyOkay. Usually the most common association of a ball-valve thrombus is severe mitral stenosis with thrombus formation. But here the mitral valve opens well, and most likely it is atrial fibrillation. I don't know exactly what it is, but it is a ball-valve thrombus. All these slides were made with AI [unclear].

00:08:41Next. Can the next person have the mic? Chest X-ray PA view. Where is the person? Okay.

00:09:02No, start by speaking about the bones, the cardiac size, the situs. If you see all those things, you can go on describing. If there is silence, that will prompt the examiner to ask more questions. You go on describing the normal things so that he stays engaged.

00:09:26CandidateDilated RPA, sir.

00:09:29FacultyOkay. Any prosthetic material you are seeing there?

00:09:32CandidateYes, sir. Sternal sutures are there.

00:09:38FacultySternal sutures are there; okay, great. It is a postoperative patient. What else are you seeing here?

00:09:49CandidateThis is probably in the pulmonary position.

00:09:52FacultyPulmonary position; what is there? What all things can be there? It is a pulmonary valve; the valve had some problem. What type of valve is it? Is it a prosthetic, a bioprosthetic?

00:10:22CandidateBioprosthetic.

00:10:22FacultyVery good. So it is a pulmonary valve replacement with a bioprosthetic valve. The reasons are different. So how will you identify that this is the pulmonary position? In the previous case we discussed the line; that time when I drew the line, it was not coming accurately, but you can see that this is the line, in the AP view and the lateral view. In the AP view, draw a line from the cardiophrenic angle to just below the pulmonary bay. You can see the [unclear] valves will be above that, and the atrioventricular valves will be below that. In the lateral view, you draw the line from the anterior-most point [unclear] to the carina. Then you will get the same representation. These were created using AI.

00:11:38Who is having the mic? Go ahead.

00:11:38CandidateChest X-ray PA view showing an ICD with—

00:11:51FacultyWhy do you say ICD? How will you differentiate between an ICD lead and a pacing lead, the coils? Anybody else? We saw an ICD lead in the morning, no? Okay, this is a pacemaker lead. Where is it pacing? Many of you have done or assisted pacemaker implants, no? Is it in a normal position or is it abnormal?

00:12:38CandidateNormal position.

00:12:38FacultyWhat else are you seeing? There are two dots seen here, and something coming below and going like this. What is that? That is an epicardial pacemaker which was put earlier; the patient might have had a congenital heart disease, and at that time an epicardial pacemaker was put, and now the patient has grown up. An epicardial pacemaker is done when the child is very small, when you cannot put a transvenous lead for many reasons. So this must be an epicardial lead placed over the RV.

00:13:17Okay, so are the thresholds the same, endocardial versus epicardial? There are some mild differences. For an endocardial lead, an acceptable implant threshold is less than 1.5 volts; for epicardial we usually accept slightly higher, 1.5 to 2. The impedance is almost the same. The battery drain is more with epicardial leads, because we need a higher output. All those points you should know. Okay, next one.

00:13:51Who is having the mic? Go on. If somebody knows it, don't give the clue.

00:14:14CandidateCoarctation of the aorta.

00:14:14FacultyVery good. But you should not go and tell the diagnosis straight away, because you may be wrong. So how will you describe this X-ray? When you see a normal-looking X-ray without much of a problem, always think of coarctation. Okay, so what are the signs you see here?

00:14:35CandidateFigure-of-3 sign and rib notching.

00:14:35FacultyYes, where will you see it? I discussed this in the morning case, no? You should know why you see it in ribs 3 to 8, what the situations are where you get unilateral rib notching, and why it is seen in the upper ribs. I think that candidate was discussing all those things correctly. So these are the figure-of-3 sign and the E sign. The E sign is seen on the barium swallow, and the figure-of-3 sign is what you have seen here: the two bulges of the pre-stenotic dilatation and the post-stenotic dilatation, with the coarctation segment between. Rib notching of ribs 3 to 8 and all we have already discussed.

00:15:25Who is having the mic? Go on describing.

00:15:30CandidateThis is an angiogram with a pigtail in the left ventricle.

00:15:30FacultyOkay, which view is it?

00:15:36CandidateStandard RAO view. Contrast is injected and the LV is filled, and it is ejected into the aorta.

00:15:51FacultyAgreed. But you have to mention the pathology also, in between. Don't distract the examiner with so many normal findings; in between, you have to say the pathology.

00:16:12CandidateThere is a prosthetic ring.

00:16:12FacultyVery good. In which position?

00:16:19CandidateMitral position.

00:16:19FacultyOkay, agreed. What was it done for? There is a clue in the angiogram itself. If you know where I am coming from, you will give the answer.

00:16:42AudienceChitra valve?

00:16:46FacultyNo, not a Chitra valve. It is not a Chitra valve; it is a mechanical valve. No, it is not a ring. We are coming out with a ring, but that will take one more year.

00:17:03What is happening to the LV? Is it a normal LV or something abnormal? What is happening to the LV apex? The LV apex is obliterated, no? It is like a clenched-fist appearance. So it is EMF.

00:17:21But what is the ring for, then? It is a recurrence of EMF. Initially a repair was done: an LV endocardiectomy was done and a mitral ring was put. Subsequently the patient again developed symptoms and had a recurrence of EMF, which is rare, but it has happened. And what is the other catheter? There is another catheter there, no? And EMF is common in Kerala.

00:17:53There is one more finding; if you state that finding, you will get an extra mark. If you just say MR is there, you will not get any mark, probably a negative one. But what type of MR is it? MR usually happens in systole, but here it is diastolic. Diastolic MR happens when the LV end-diastolic pressure is high, but probably it can also happen due to the ectopics. So it is diastolic MR, and the other catheter is in the PA; from the RV it has gone to the PA. So it is endomyocardial fibrosis, which you can identify by the obliterated LV apex and the post-repair situation.

00:18:47AudienceTapioca.

00:18:50FacultyTapioca; we don't eat tapioca now. See, I will tell you the reason, to wake you up. Lord Parashurama went to Kerala, threw his axe into the sea, the sea receded and Kerala was born; God's own country, it is called. The beaches of Kerala have thorium and cerium, and this gets deposited in the heart. This was found at the Sri Chitra Institute, and they didn't realise it until the Germans started taking the sand from the Kerala beaches. I think Cochin now has a BARC centre, the Bhabha Atomic Research Centre; that sand is full of radioactive material. Am I correct? Thorium is actually the future of India. A lot of thorium is there; we don't have uranium resources, so we are developing thorium-based atomic energy, and I think our future will be on thorium, which is very much abundant in the Kerala sand.

00:19:52That is one of the propositions for the development of endomyocardial fibrosis in the particular area where the thorium sand is, the Chavara area, etcetera. And there are other theories also: the tapioca theory; cassava and banana consumption was proposed; protein allergy and malnutrition were proposed. And there is a belt in the tropical region. In Mozambique it is very common: when they screened the population, they could identify EMF in around 20% of the population. That is one of the largest series of EMF seen. But there is a change in the pattern of EMF. There are a lot of studies on EMF, probably from our institution; go through them. Another place where EMF is found is a place in Jammu and Kashmir [unclear]; it is a pocket. That is also because of thorium, and because of the wars, you know, all the radioactive material. Even in the Mahabharata, I think, they used radioactive material. That's okay.

00:20:54This is one investigation done, and based on that, some therapeutic intervention is done. What is that? One test is done, a haemodynamic evaluation is being done on this screen, and subsequently a procedure is done. What is being done in both? Who is having the mic? It is simple only. First identify this. What is this?

00:21:34CandidateDevice closure.

00:21:34FacultyDevice closure of what? It is a PDA device closure. You can see this is done across the tracheal shadow; this is an ADO I device. And what is being done before that?

00:21:54CandidateBalloon sizing.

00:21:54FacultyNot balloon sizing. Balloon sizing we don't do now; balloon sizing is not done even for PFOs or ASDs anymore. This is done because the patient had PH: we occluded the PDA and saw how much drop in the pulmonary artery pressure there is. This is a balloon occlusion test for assessing the reversibility of pulmonary hypertension, how much of it is contributed by the shunt. So this is a balloon occlusion test for assessing the operability of a PDA.

00:22:34We will give a little time for this one. Who is having the mic?

00:22:34CandidateYes, sir.

00:22:40FacultyGo on assessing the saturations and the pressures. Don't give clues; you can have your own assessment. And if somebody is willing to answer, I will give the mic to him. How will you go about it, given these saturations? Is the SVC saturation normal? What are the normal venous saturations? Very simple: 65 to 75 is the normal venous saturation, and 95 to 100 is the left-sided saturation. These should be very simple things: 65 to 75, and 95 to 100. So this is between 65 and 75; 72 in the SVC, and the SVC and RA are normal. Okay, then what is happening in the RV?

00:23:31CandidateRV step-up. There is an RV step-up, 98.

00:23:36FacultyThen what is happening in the PA?

00:23:48CandidateStep-down.

00:23:51FacultyOkay. Is the PA corresponding to the SVC and RA? Okay, come back to the LA saturation.

00:24:10CandidateThe LA saturation is normal.

00:24:14LA, RV, aorta... CTGA.

00:24:23FacultyThe LA is connected to what? The LV saturation is normal, the LA saturation is normal, and the SVC, IVC and RA saturations are normal. So then what has happened?

00:24:31CandidateCTGA, sir.

00:24:31FacultyNo, you describe what has happened. The LA is connected to what?

00:24:36CandidateThe LA is connected to the RV, and the aorta is connected to the RV, and the LV is connected to the PA.

00:24:53FacultyAnd what about the pressures?

00:24:58CandidateRV and aortic pressures are the same, with the diastolic step-up [unclear] in the PA.

00:25:13FacultySo is it a TGA?

00:25:19CandidateCorrected TGA, sir.

00:25:19FacultyYes, corrected TGA. Correct. Okay, then I will go to the next one.

00:25:33I think some of you must have assisted in this procedure, since it is still done in some hospitals; this device is available. What intervention is being done? Where is the position of the valve, which we just discussed in the last case? What is this balloon called? It was developed by an Indian; we are all proud of it.

00:26:05This is the JOMIVA balloon, the Joseph mitral valvotomy balloon, developed by Dr. George Joseph from CMC Vellore. This is an over-the-wire balloon. You can see a sheath here; the sheath comes up to probably the IVC-RA junction, and the balloon is tracked over the wire. You can see the wire, and this is the balloon, which is dilated. So this is called the JOMIVA balloon, an over-the-wire balloon.

00:26:50Who is having the mic? Please go ahead.

00:27:01CandidateLV angiogram.

00:27:13FacultyGo on describing.

00:27:16CandidateThe catheter is coming from the aorta and going to a ventricle.

00:27:25FacultyWhat is the morphology of the ventricle? Normal LV morphology, or is it something else?

00:27:33CandidateIt is a highly trabeculated ventricle.

00:27:33FacultyOkay. And what is the position? Do you see the normal aorta like this? When the aorta is connected to the more trabeculated ventricle, it is called?

00:27:58CandidateCCTGA.

00:27:58FacultySo what is the position of the aorta in that called? How will you identify it clinically?

00:28:07CandidateIt is called an L-posed aorta; you will have pulsations at the left upper sternal border.

00:28:11FacultyOkay. So this is how a normal aorta looks, and this is how an L-posed aorta looks, and this is how the aorta-PA relation and all are seen. Do you understand? Okay, I will run it again for you, so you can see. So, an L-posed aorta in a CCTGA. Okay, next. Tell me when to stop.

00:29:08Where is the catheter coming from? You can speak something.

00:29:12CandidateJugular.

00:29:17FacultyJugular, okay; jugular to SVC, agreed. Then what is it filling?

00:29:27CandidateThe pulmonary artery. It is filling the pulmonary artery.

00:29:31FacultySo it is a postoperative patient; you can see the sternal wires also. So what surgery was done? I think many of you might not have been exposed to paediatric patients. What is this operation done for univentricular hearts? This is a bidirectional Glenn. This is the first stage of a TCPC. Initially we connect the SVC to the pulmonary artery; subsequently, when we reassess the patient after some time regarding suitability for completion of a TCPC, we connect the IVC to the pulmonary artery. That is the total cavopulmonary connection. We'll have one more.

00:30:27Don't take photographs; you will not remember. Just listen to this. Well, you can take photographs. No, don't take photographs—but it did not help. Okay, you can take them.

00:30:44Don't tell the diagnosis; you will not benefit. Just discuss what it is.

00:30:53CandidateFirst, it looks like a colour Doppler across the aortic valve.

00:30:56FacultyWhat is it?

00:31:00CandidateColour Doppler across the LVOT. There are two waveforms which I can see. The earlier waveform is faint, and the later part of the waveform is dagger-shaped. And on top of that I can see chamber hypertrophy, seen in the M-mode as well as in the 2D frozen image.

00:31:19FacultyThe chambers look small, very good; very hypertrophic. Okay, so these are features of hypertrophic cardiomyopathy. What is the gradient?

00:31:30CandidateIt is a severe obstructive HCM.

00:31:36FacultyWhat is the speed? What is the gradient?

00:31:40CandidateThis is 4; this is 6. 6 means 6 times 6 times 4 is...

00:31:51FacultyBut I am saying you are wrong. I am saying that you are integrating the MR as well as the HCM. Very good. So the fainter one is the MR, which you are picking up. The other one, the true gradient, is the dagger-shaped one, and that is around 3 only. So it is around 36, a moderate level of obstruction.

00:32:15CandidateFluttering of the—

00:32:15FacultyWhat are you seeing here? What is this? It is the SAM. What is the grade of the SAM? You should know the gradings of SAM: how much of systole the valve stays touching the septum, less than 30%, 30% to 50%, more than 50%, like that.

00:32:37CandidateThere are two things here. First of all, the HOCM gradient is not so much, so that suggests the SAM is mild. Also, if the SAM is moderate, it will cause—

00:32:51FacultyNo, the SAM is significant. The SAM is significant: you see that for most of systole it is touching the septum. The SAM is significant; the gradient may not be directly related to the SAM. Okay, one more and we will stop.

00:33:16He is speaking there more. You are picking up the MR; that is the larger jet. That is what I told you. The fainter one is the MR, and that is why I wanted to show you; that is the point.

00:33:35Okay, what is being done here? Something is done to find out something, and something is confirmed. You do it routinely in the ward. Who is having the mic? The mic has been given away. No, you have had your chance; give it to somebody else. Everybody should participate. You have already done one. Okay, next person.

00:34:26Who is having the mic? Please. Play it. What is there initially in the first top strip? What is there initially?

00:34:46CandidateTachycardia.

00:34:46FacultyTachycardia. When describing a tachycardia: is it narrow QRS or broad QRS? Narrow complex. What is the approximate rate? You should at least say this. Go on describing something. If you have difficulty, give it to the next person. I thought it was not that difficult a one.

00:35:48What drug is given here?

00:35:48CandidateAdenosine.

00:35:48FacultySo what will adenosine do?

00:35:52CandidateIt will produce AV block.

00:35:52FacultySo is it terminating the tachycardia? It is coming back now. So what is the origin? Is it a re-entry mechanism or an automatic mechanism?

00:36:18CandidateIt is an automatic mechanism.

00:36:18FacultyOkay, so that is a simple thing. We will stop at this point and go for tea. I will ask you one related question. Flecainide is now being used; everybody has started using flecainide. What will you give for flecainide toxicity? Not ordinary sodium bicarbonate: hypertonic sodium bicarbonate, and one more drug. You give a lipid infusion, ILE it is called, intravenous lipid emulsion 20%. These are the things, because somebody gave adenosine for flecainide toxicity, which is not to be given.

00:37:05SpeakerThank you so much, sir. It was a wonderful session. On behalf of all the students, I extend our thanks to our faculty member, who has travelled all the way and has taken two hours of absolutely phenomenal OSCEs. Thank you so much, sir. We will continue tomorrow; we will have one more OSCE session with him tomorrow.

00:37:22We will now break for tea. In the same sequence, the students will have it on the left side and the faculty on the right, and we will join back within 10 to 15 minutes, because we have two more really good cases to go. Two candidates will present the next two cases. Thank you, sir. I request our staff outside to help with the tea. We need to come back in 10 to 15 minutes maximum, please.

10

Day 1 · 17-Oct-2026 · 16:54 hrs · 55 min

Lutembacher Syndrome Case Discussion

  • Lutembacher syndrome
  • Atrial septal defect
  • Mitral stenosis
  • Right heart failure
  • JVP and precordial examination
  • ECG in RVH
  • Chest X-ray
  • PTMC and ASD closure

A DM/DrNB candidate presented a long case of a 35-year-old man from Assam with long-standing exertional palpitations and progressive right heart failure, and offered a clinical diagnosis of a large ASD with a small restrictive VSD, moderate-to-severe TR, severe PAH and atrial fibrillation. The examiners questioned the history analysis, JVP, apex, thrill and murmurs, and steered the candidate towards mitral valve disease with ASD; the chest X-ray (massive MPA, RPA and LPA dilatation) and echocardiogram (large ASD with a thickened, doming mitral valve, laminar transmitral flow, no VSD or TR) established Lutembacher syndrome. Management discussion covered surgical versus transcatheter options, tricuspid intervention thresholds and the technical difficulty of PTMC in this setting.

Case
35-year-old man from Assam, small-scale business and farming, lower socioeconomic status; exertional palpitations since childhood, exertional dyspnea and fatigue since 2023 (NYHA III from April 2026), pedal edema and ascites since April 2026, one episode of hemoptysis in 2024; preterm birth; in atrial fibrillation (pulse 55/min), grade 2 clubbing, SpO2 95–96%.
Diagnosis discussed
Lutembacher syndrome: large ASD with left-to-right shunt and mitral stenosis (thickened mitral valve, restricted PML, doming AML), dilated RV and RVOT with paradoxical septal motion, in atrial fibrillation with right heart failure. The candidate's clinical diagnosis (large ASD + small restrictive VSD, moderate-to-severe TR, severe PAH) was revised; echo showed no VSD and no TR.

Teaching points

  1. Right heart failure can develop in ASD without pulmonary hypertension, from RV volume overload alone.
  2. Whenever ASD findings occur with severe PH or early RV failure at a young age, bring in mitral valve disease (Lutembacher syndrome).
  3. Clinical rule: ASD with a systolic thrill in the pulmonary area and a loud P2 suggests mitral disease with ASD; a soft P2 suggests ASD with pulmonary stenosis.
  4. Infective endocarditis is rare in ASD (low-gradient shunt); fever is present in about 90% of endocarditis, and its absence argues against it.
  5. Present the JVP under four headings: elevation, waveform, respiratory variation and abdominojugular reflux; a brisk y descent excludes significant tricuspid stenosis.
  6. Constrictive pericarditis and restrictive cardiomyopathy should be included up front in the differential of right heart failure in India.
  7. In atrial fibrillation S1 should vary in intensity; uniform S1 suggests complete heart block or a slow ventricular rate (e.g. digoxin).
  8. In the absence of RBBB, a qR pattern in V1 suggests suprasystemic RV pressure; these patterns are rough correlations only.
  9. Massive dilatation of the MPA, RPA and LPA on X-ray suggests Lutembacher syndrome or tetralogy with absent pulmonary valve.
  10. In Lutembacher syndrome the ASD decompresses the LA, so mitral flow may be laminar; any transmitral gradient in the presence of an ASD is significant. PTMC is difficult because the LV is small and the balloon tends to fall back into the LA.
Edited transcript 281 paragraphs · 5,499 words

00:00:27FacultyShall we start? Put it down.

00:00:38CandidateGood evening, everyone. The patient is a 35-year-old man, a resident of Assam, educated up to 12th standard; his occupation is small-scale business and farming, and he is of lower socioeconomic status. The informant is the patient himself. He presented with chief complaints of exertional shortness of breath and easy fatigability since 2023, and abdominal distension and pedal edema since April 2026.

00:01:10He was apparently normal, doing his farm activities without any discomfort, before 2023, after which he started to develop shortness of breath on farming activities, which is functional class II breathlessness, associated with easy fatigability. He remained in functional class II till April 2026, when his shortness of breath and fatigue worsened to functional class III, and he had limitation even while going out for groceries. Along with that, he developed progressive pedal edema, associated with progressive ascites.

00:01:57He consulted at a local government medical college hospital in Assam, where he was told he had a heart condition and was started on a few medications. His symptoms were only partially relieved. He then went to a tertiary centre, where he was evaluated and told he had a hole in the heart present since birth, which was very high risk for surgery, and hence he was put on medicines. He was on two medicines, of which he discontinued one after one and a half months and continued the other. After discontinuing that one medicine, he again developed progressive ascites and progressive pedal edema.

00:02:48When he came to the Sathya Sai hospital, on further probing, he complained of exertional palpitations in the form of increased precordial activity, which he himself had observed almost since childhood. He was also told by others that he had increased precordial activity, especially after intense activity or playing football, which he used to play in childhood; it used to be relieved after about 5 minutes of rest.

00:03:30On further enquiry, he also reported an episode of hemoptysis in 2024, for which he was admitted for 2 days in a local hospital and evaluated for tuberculosis, which was negative. There is no history of syncope, presyncope or angina, no history of orthopnea or PND, and no history suggestive of acute rheumatic fever in the past.

00:04:00Coming to the birth history...

00:04:00FacultyIs there any other important history? In the past history, is there any other significant history? We want to save time and discuss. Is there any other important history?

00:04:23CandidateNothing else, sir. That's all.

00:04:27FacultyOkay. So from your history, he has a hole in the heart diagnosed in early childhood?

00:04:36CandidateNo, sir, he was diagnosed only in April 2026. He used to have palpitations before, but he did not consult anyone; he thought it was a normal thing. He did not consult anyone for the exertional palpitations, which he perceived as increased precordial activity.

00:04:53FacultySo his symptoms appeared in 2023.

00:04:58CandidateYes, sir. His shortness of breath and fatigue started in 2023 and stayed stationary till April 2026.

00:05:05FacultyWorsened to functional class III; he has shortness of breath, pedal edema, ascites, and now palpitations.

00:05:11CandidateNo, sir, he has had exertional palpitations since childhood, and fatigue and shortness of breath since 2023, which worsened to functional class III in April 2026. And then, for the first time, he also developed progressive pedal edema and progressive ascites, only in April 2026.

00:05:30FacultyOkay. If there is no other important history, tell us your analysis and diagnosis.

00:05:37CandidateHistory analysis and diagnosis: based on the history, it seems to be a pre-tricuspid shunt, now with PAH, sir.

00:05:55FacultyWhy not other differentials?

00:05:55CandidateSir, he is 35 years old, so either a PDA or a VSD would have Eisenmengerized early, or presented with severe PAH early, in the first or second decade. Also, exertional palpitations are associated with a large ASD.

00:06:21FacultyOkay. Can you describe in detail the abdominal distension and pedal edema — the sequence, and the response to treatment? Which one disappeared first?

00:06:29CandidateYes, sir. In April 2026 he first developed pedal edema, initially up to the level of the ankles, which gradually progressed to the level of the knees. Simultaneously he developed abdominal distension, not associated with jaundice, abdominal pain or fever. After starting medicines at the local government medical college, he had increased frequency of urination, after which his pedal edema was significantly reduced, but the abdominal distension continued to be there; even though it reduced, it persisted. Then, after one to one and a half months, he stopped those medications, and the pedal edema and ascites progressively returned.

00:07:30FacultyOn what basis do you think the patient has developed PH? How do you say PH?

00:07:36CandidateSir, initially he had exertional palpitations, shortness of breath and fatigue.

00:07:40FacultyI know; from all those symptoms, probably a pre-tricuspid shunt, an ASD — that's fine. Why do you think of PH now?

00:07:45CandidateSir, now he has developed features of right heart failure. Probably now, along with the volume overload, there is pressure overload.

00:07:57FacultyListen — without PH, can a patient with ASD develop failure? Without PH?

00:08:05CandidateWithout PH, sir, he can have either arrhythmias or right heart failure.

00:08:05FacultyCan right heart failure develop without PH or not? Yes — without PH, an ASD patient can develop right heart failure.

00:08:20[Calls on a participant.]

00:08:22AudienceSir, there can be isolated RV cardiomyopathy.

00:08:26FacultyRV cardiomyopathy is different, and the age is different.

00:08:32CandidateYes, sir. He can have failure even without PAH, due to a large ASD with volume overload; he can have RV failure even without PAH.

00:08:43FacultyIf the patient has some mitral stenosis or MR with the ASD?

00:08:48CandidateYes, sir. With MS with ASD, or MR with ASD, the volume overload is more significant, so they can develop PH early, with early RV failure.

00:09:03FacultySo do you think a patient with ASD and MS will live long enough without getting operated [unclear] to develop ascites and pedal edema? Think of the natural history. And the second thing is, it will not be inoperable.

00:09:24CandidateYes, sir, unless he is...

00:09:29FacultyWhy not a small PDA and some other condition causing right heart failure?

00:09:40CandidateSmall PDA along with ASD, sir?

00:09:40FacultySmall VSD with heart failure, not ASD. Small PDA, small VSD, and some other pathology.

00:09:49CandidateYes, sir, it can be there, but a small PDA wouldn't cause any significant hemodynamic consequences.

00:09:59FacultySo do you have to give stress to the hemoptysis or not? He has hemoptysis.

00:10:04CandidateYes, sir, hemoptysis — that's one point which I can consider positive for pulmonary hypertension.

00:10:16FacultyThe presence of hemoptysis can substantiate PAH. So what differentials would you think of when your patient presents in right heart failure, apart from [unclear]?

00:10:28CandidateArrhythmia, sir. And structurally, Ebstein's can be there along with an ASD, sir, with or without... There can be idiopathic pulmonary hypertension along with ASD, sir; and he is from Assam, so in hill areas they can develop pulmonary artery hypertension. Also, I was going to the birth history, sir: he was a preterm baby, so there can be lung malformations or lung conditions which can predispose him to develop PAH early, and RV failure.

00:11:11FacultyIs it constrictive pericarditis or restrictive cardiomyopathy?

00:11:15CandidateYes, sir. Constrictive pericarditis and restrictive cardiomyopathy also can be there.

00:11:29FacultyTuberculosis and constrictive pericarditis — is it possible?

00:11:37CandidateConstrictive pericarditis I would not keep as a first differential, sir, because there are no supportive findings in the past history: no history of TB, and no history of any malignancy or radiation in the past.

00:11:48FacultyHow will you explain that? How many patients with constrictive pericarditis give a history of radiation here? How many such patients have you seen in this country, with constrictive pericarditis in India [unclear]?

00:12:06He has gross right heart failure, no? Yes. A history of right heart failure, hemoptysis, a recently diagnosed hole in the heart, and a childhood history of repetitive exertional palpitations — this is the only history. So your first diagnosis is ASD with [unclear], with right heart failure.

00:12:25CandidateYes, sir, possible.

00:12:25FacultyAnd in addition, you may think of ASD with mitral disease — possible?

00:12:30CandidateYes, sir, and PAH — like probably a primum ASD with a mitral valve cleft, or with MR, or MS — Lutembacher's.

00:12:48FacultyAny chance of rheumatic heart disease with right heart failure?

00:12:54CandidatePossible, sir. Even without a proper history of acute rheumatic fever, there could be development of MS with right heart failure.

00:13:05FacultyDo you think your patient has left heart failure symptoms?

00:13:12CandidateNo, sir, he did not complain of any PND episodes, which are very specific for left heart disease, so that was not there.

00:13:23FacultyOkay. Anything from the floor, from the analysis of the history?

00:13:41CandidateI'll continue from the birth history, sir. So he was a...

00:13:41FacultyHistory is over. Examination.

00:13:51CandidateGeneral physical examination: the patient was examined in sitting and supine positions and was comfortable; conscious, coherent and oriented. Height 168 cm, weight 58 kg, BMI 20.5 kg/m². Afebrile; no pallor, no icterus and no cyanosis. Grade 2 clubbing was present, and there was no pedal edema. Pulse 55 per minute, irregular.

00:14:19FacultyNo cyanosis, but clubbing is there?

00:14:19CandidateClubbing grade 2, sir. No edema, sir.

00:14:30Pulse 55 beats per minute, irregularly irregular, of normal volume and normal character; no radio-radial or radio-femoral delay, and all peripheral pulses were well felt and equal. Blood pressure 125/70 mmHg in both upper limbs and 124 mmHg systolic in both legs. JVP column elevated just 1 cm above the sternal angle, with absent a wave, prominent CV waves and a prominent y descent. Respiratory rate 18 per minute, abdominothoracic. Saturations were 95–96% in all four limbs, and there were no peripheral signs of infective endocarditis.

00:15:14FacultyWhat are the peripheral signs of endocarditis? You say there are no signs of infective endocarditis, but clubbing is there. Can you enumerate them?

00:15:29CandidateSo I looked for splinter hemorrhages, Janeway lesions and Osler's nodes, sir, and I did not do a fundus examination.

00:15:39FacultyIs there a need to mention this? We are examiners — in the exam, do you need to actually mention that there are no peripheral signs of infective endocarditis? Their sensitivity is very low, and they are not very specific either.

00:15:59What do you think — in your case, what do they represent? Usually we don't comment on this. "There are no features of endocarditis" — why do you mention this? Are you thinking about it?

00:16:22CandidateYes, sir. With a congenital heart disease, probably a shunt, there is a risk of infective endocarditis, which may have precipitated the decompensation into heart failure. So I wanted to look for signs of infective endocarditis.

00:16:40FacultyThe patient has a hole in the heart. Where do you get endocarditis? You are thinking of ASD — how often do you get endocarditis in ASD?

00:16:50CandidateIt is not as common.

00:16:50FacultyASD is almost immune. You don't get endocarditis. Why?

00:16:54CandidateBecause the pressure gradient between the left atrium and the right atrium is low, the shear stress is not enough to cause endothelial damage; it is a low-risk predisposing factor.

00:17:09FacultyNo — most importantly, the most common clinical presentation is fever, in 90% of cases, which is not there here. No fever, nothing. So why do you think of it?

00:17:26Can you describe your JVP again?

00:17:29CandidateThe JVP column was elevated just 1 cm above the sternal angle, with absent a wave, prominent CV waves and a prominent y descent.

00:17:38FacultyThat's it? You have to present the JVP under four headings.

00:17:45CandidateIt was elevated 1 cm above the...

00:17:49FacultyFirst, elevation. Then the pulsations — absent a wave, prominent CV wave. Third is respiration; you didn't mention that. Fourth is the abdomen.

00:17:57CandidateNormal respiratory variation. I did not perform the hepatojugular reflux.

00:18:02FacultyWhy didn't you perform it — because it is elevated?

00:18:06CandidateIt is elevated in the sitting position.

00:18:13FacultyYou said irregularly irregular pulse. Is there something else you wanted to add?

00:18:18CandidateSir, the apex–pulse deficit was less than 10, sir; it was around 6.

00:18:22FacultySo tell me, what are the conditions that give a sharp y descent?

00:18:29CandidateSharp y descent — constrictive pericarditis can have a sharp y descent.

00:18:40FacultyAny other condition?

00:18:48CandidateSevere TR, with prominent CV waves and a prominent y descent.

00:18:53FacultyIsolated severe TR with moderate TS?

00:18:53CandidateYes, sir.

00:18:53FacultyIsolated severe TR, okay — then without TS. [unclear]

00:19:14CandidateRVMI.

00:19:23No, sir.

00:19:32FacultyBroadbent sign — what is that?

00:19:32CandidateBroadbent sign is the inward drawing of the intercostal spaces — pericardial.

00:19:47FacultySo he has a sharp y descent, and the respiratory variation of the JVP is normal. What do you think I am aiming at? Which disease can you exclude?

00:20:06CandidateSignificant tricuspid stenosis can be excluded, because of the y descent.

00:20:06FacultyYes, a brisk y descent is there. Okay.

00:20:22[unclear] pedal edema, there is ascites.

00:20:22CandidateConstrictive pericarditis is ruled out, sir.

00:20:27FacultyAnd mostly the history may rule it out.

00:20:35Okay, go ahead then. Good.

00:20:43CandidateCardiovascular system examination. Inspection and palpation: the chest is normal in shape and symmetry. The apical impulse is in the 7th intercostal space, 1 cm lateral to the midclavicular line, and it is a diffuse and sustained apex. There is a grade 3 left parasternal heave and a systolic thrill in the left 4th intercostal space. There are systolic epigastric impulses touching the tip of the finger, and there is a palpable second heart sound in the...

00:21:16FacultyWhat is that — the epigastric impulse? Due to what?

00:21:22CandidateIt is the RV, sir. The epigastric impulses are due to the RV, sir.

00:21:30FacultyRight ventricular impulse. Okay.

00:21:39CandidateThe apex is RV type, ma'am; it is diffuse.

00:21:39FacultyYou said it is in the 6th–7th space, down and out — 7th space — diffuse, sustained, forceful?

00:21:55Sustained means continuous. Is it sustained, or forceful and sustained?

00:21:59CandidateIt is forceful and sustained, sir.

00:22:03FacultyForceful, sustained. Okay.

00:22:09CandidateAnd there is a palpable second heart sound in the left second intercostal space; no scars or sinuses. Percussion: the left second intercostal space is dull; the left heart border corresponds to the apex; the right heart border is retrosternal; liver dullness is present on the right and gastric tympany on the left.

00:22:36FacultyComing to auscultation — before auscultation, what is your diagnosis? A probable diagnosis and the hemodynamics? You have plenty of positive findings. There is an RV type of apex, which you are saying is down and out, and it is sustained. Why do you say RV type of apex?

00:23:04Generally, if it is down and out, it is a left ventricular apex, with pressure overload — that is what I am thinking.

00:23:13CandidateYes, sir, but it is a diffuse type of apex. Diffuse means there is LV dysfunction, or there could be volume overload.

00:23:22FacultyVolume overload can give a diffuse apex. Diffuse means more than one intercostal space — is it more than 5 cm in radius? So that could be LV volume overload or LV dysfunction. Where do you say RV?

00:23:39CandidateSir, it was continuous with the left parasternal heave, by the inching method. It was continuous with the heave.

00:23:53Faculty[unclear] It has gone down and out to the 7th space. Usually it is taught that the RV will dilate in the same plane, and the LV will go downwards.

00:24:07What is the retraction — lateral retraction or medial retraction?

00:24:10CandidateIt is medial retraction, sir.

00:24:15FacultyMedial retraction — so that means LV type. Medial retraction happens with the LV, because of the LV twisting like this.

00:24:26CandidateSo I would want to examine again for the retractions. I will check again.

00:24:37FacultySo biventricular enlargement is fine — accept it, after the 7th space, down and out, and forceful sustained. Okay. [unclear]

00:25:01CandidateI am not aware, sir.

00:25:16FacultyOkay, then fine. If you think RV — why do you think RV?

00:25:24CandidateYes, sir, there's an RV heave, sir. There is a thrill, 4 by 6, in the left parasternal area, 4th intercostal space, and there are epigastric RV impulses.

00:25:36FacultyTell me then, what is the diagnosis? And you have prominent CV waves, and no change with respiration — you said that about the JVP? No change. That is a very important point I have told you here; you have to explain it. No change with respiration.

00:25:59CandidateSo it is combined volume and pressure overload of the RV, sir, based on the inspectory and palpatory findings.

00:26:05FacultyWhat are your hemodynamics? Probable diagnosis?

00:26:28What is the cause of the systolic thrill here? You say the sound is not palpable?

00:26:33CandidateSir, P2 is palpable.

00:26:39FacultyOkay, so a loud P2 is there, PH is there; you get a systolic murmur there. You understood?

00:26:43CandidateYes, sir. But I couldn't find any systolic murmur in the second space.

00:26:56FacultyWhat is it due to?

00:26:59CandidateSir, [unclear] the systolic thrill in the 3rd–4th intercostal space — the differentials are restrictive VSD or DCRV.

00:27:10FacultyOkay, you think in that way?

00:27:10CandidateYes, sir.

00:27:19Faculty[unclear] Right ventricle, no? DCRV — you get it? P2 loud — you get it? But how can you say that [unclear]? Why did you decide we can't narrow it down to DCRV? Auscultation.

00:27:44CandidateAuscultation: the first heart sound is normal; the second heart sound is wide fixed split, with A2 normal and P2 loud; no additional heart sounds were heard. Murmur: there is a pansystolic murmur in the left 3rd and 4th intercostal spaces, grade 5 by 6, [unclear] mixed frequency, best heard with the diaphragm of the stethoscope, with no change on standing up.

00:28:15FacultyStanding up — did you do the manoeuvre only to decrease the murmur? With standing, is the murmur decreasing?

00:28:23CandidateNo change, sir. No change.

00:28:33And there is another pansystolic murmur at the apex, which is grade 3 by 6, soft, blowing and high-pitched, which increases with inspiration and is best heard with the diaphragm.

00:28:49FacultyThis murmur increases with inspiration? The apical murmur increases with inspiration?

00:28:53CandidateYes, sir.

00:28:59FacultyFinish. Any gallop — S3, S4?

00:28:59CandidateNo click, no S3, no S4.

00:29:05FacultySo you got a second sound that is widely split, with P2 loud. You got a pansystolic murmur in two places, one at the left parasternal area and one at the apex.

00:29:08CandidateYes, sir, two different murmurs.

00:29:13FacultyAnd there is no change with respiration?

00:29:19CandidateThe pansystolic murmur at the apex increased with inspiration.

00:29:19FacultyOkay, tell us.

00:29:31CandidateOther systems: respiratory — bilateral normal vesicular breath sounds were heard all over the lung fields. Gastrointestinal — soft, non-tender.

00:29:41FacultyThat's okay, fine. No other findings? Abdomen — ascites?

00:29:46CandidateNo ascites, sir; clinically nothing.

00:29:51Faculty[unclear] Liver is tender, actually? Did he have hepatic pulsations? You said you felt epigastric pulsations — were they hepatic? When we saw the abdomen, from his discussion, he had hepatic pulsations.

00:30:20CandidateI didn't look for it.

00:30:29FacultyTell me the diagnosis.

00:30:35CandidateDiagnosis: situs solitus, levocardia, acyanotic congenital heart disease — a pre-tricuspid shunt with a large ASD, probably along with a post-tricuspid shunt, a small restrictive VSD — associated with moderate to severe tricuspid regurgitation, with severe PAH; the patient is in AF and in heart failure.

00:31:05FacultySo ASD, TR, PH, heart failure. Is that clear? VSD?

00:31:18CandidateVSD, sir.

00:31:21FacultyThe full diagnosis.

00:31:23CandidateSitus solitus, levocardia, acyanotic congenital heart disease: a pre-tricuspid shunt, a large ASD, with a post-tricuspid shunt, a restrictive VSD, sir, with moderate to severe TR and severe PAH.

00:31:43FacultyIs the shunt left to right or right to left?

00:31:47CandidateSorry, sir. The shunt is still left to right, sir.

00:31:54FacultyWhat grade?

00:31:54CandidateQp/Qs more than 1.5, sir.

00:31:54FacultyWhat is the evidence?

00:32:03CandidateSir, it is causing RV volume and pressure overload; it is significant enough to cause significant RV dilatation, volume overload, and PH.

00:32:12FacultyHow do you know clinically that the patient has an ASD with a shunt of more than 2:1? How do you know clinically that the patient has a significant-shunt ASD?

00:32:25CandidateYes, sir. He will have a flow murmur across the tricuspid valve and a flow murmur across the pulmonary valve — a systolic murmur.

00:32:35FacultyHere, what is happening?

00:32:35CandidateNone of those could I appreciate, sir.

00:32:41FacultyThen why do you say the patient has a left-to-right shunt? And what is the cause of clubbing here?

00:32:49CandidateSir, clubbing I cannot explain with the current cardiac condition; probably idiopathic or familial. And because of the loud murmur in the 4th intercostal space, grade 5 by 6, I was not able to appreciate any tricuspid [flow murmur].

00:33:09FacultyFor ASD — cardiomegaly; you think of ASD because the second sound is wide fixed split?

00:33:14CandidateYes, sir, wide fixed split.

00:33:18FacultyAnd he has a systolic thrill in the pulmonary area, or a little below, in the 3rd space. ASD, cardiomegaly, and a systolic thrill in the pulmonary area, 3rd space — what is your diagnosis?

00:33:31CandidatePulmonary stenosis, or severe PAH also can be...

00:33:35FacultyPulmonary stenosis can't give a loud P2. P2 is loud. A systolic thrill means increased flow across the RVOT.

00:33:42CandidateYes, sir.

00:33:42FacultySo increased flow across the RVOT is due to some other factor.

00:33:57CandidateLarge VSD...

00:33:57FacultyLarge VSD, or something else is increasing the flow. There is some obligatory mechanism also. So think of mitral disease.

00:34:08CandidateCleft mitral leaflet, or MS.

00:34:16FacultySo you understand. And second, you are saying there is no change in the jugular venous pressure with respiration. You can explain that by right ventricular failure — possible.

00:34:29CandidateSevere RV failure, yes, sir. He had a history of pedal edema, so right heart failure; that's why I am not getting the respiratory variation of the JVP.

00:34:46FacultyAnd you are getting the same TR murmur at the apex, because the RV is forming the apex. The TR murmur is also heard at the apex.

00:34:51CandidateYes, sir.

00:34:58FacultyAnd because he has right heart failure, the TR murmur is not increasing with inspiration; you can explain it in this way. I don't know what the actual findings or diagnosis are, but from your presentation, you could have done it like this.

00:35:22We need to bring in mitral valve disease to explain all these things. This is what we are trying to tell you.

00:35:27CandidateYes, sir.

00:35:34FacultyX-ray. While the X-ray is being loaded: what is the impact of atrial fibrillation on your heart sounds?

00:35:47CandidateThey worsen, sir...

00:35:47FacultyThe heart sounds — because you categorically said S1 is normal and S2 is wide fixed split.

00:35:57CandidateS1 should be variable, sir — variable in intensity.

00:36:02FacultyIntensity. [unclear] In your case it doesn't vary — or in atrial fibrillation in general does it not vary? [unclear]

00:36:26CandidateSir, I mean to say the split won't change, sir, but the intensity of S1 will vary.

00:36:35FacultyAtrial fibrillation, but the intensity is uniform — what do you diagnose? In atrial fibrillation, S1 happens because of ventricular contraction; but the intensity is uniform. Any other condition?

00:36:58CandidateComplete heart block.

00:37:03FacultyComplete heart block, or a slow ventricular rate. What is the heart rate of your patient?

00:37:07Candidate55, sir. It is inappropriately on the lower side.

00:37:10FacultyYes, maybe he is on digoxin or something.

00:37:23Please put up the ECG.

00:37:41CandidateThis is a 12-lead ECG at normal standardization, with absent P waves and an irregularly irregular rhythm, suggestive of atrial fibrillation; an axis of around 110 to 120 degrees; RBBB morphology, with features of RV strain in the form of ST depression and T inversion in V1 to V3.

00:38:14FacultyThat would be the reciprocal changes of RBBB, actually. How do you say RV strain?

00:38:20CandidateYes, sir.

00:38:29It shows atrial fibrillation and features of RVH, in the form of right axis deviation, right bundle branch block, and R in V1 more than 7 mm, suggestive of RV hypertrophy.

00:38:44FacultyNot R in V1 of 7 mm — that is in the absence of RBBB. In the presence of incomplete RBBB, more than what? More than 10; with complete RBBB, more than 15 [unclear].

00:39:06How do you diagnose right atrial enlargement in atrial fibrillation on the ECG?

00:39:20CandidateAF itself is one evidence of atrial enlargement, sir, and for right versus left atrium, [unclear]. A Q in V1 — a qR pattern in V1, sir — suggestive of suprasystemic...

00:39:38FacultyNo, not pulmonary pressure; he is asking how you know, in the presence of atrial fibrillation, that the patient has right atrial enlargement. Okay — if a q is there in V1, then that is one of them.

00:39:53So you are correct: in the absence of RBBB, if you get a qR pattern in V1, you can take it as suprasystemic RV pressure; an R [unclear] pattern, systemic; and an rS pattern, subsystemic. First of all, these are rough correlations.

00:40:18CandidateThere is notching in the S wave, ma'am — the crochetage sign — suggestive of RV strain and RV hypertrophy.

00:40:31FacultySo this is RVH — a pressure-hypertrophy disease, yes. Okay, then atrial fibrillation. X-ray.

00:40:46CandidateX-ray [PA] view, with the trachea central and normal bony prominences. There is gross cardiomegaly, with dilatation of the main pulmonary artery.

00:41:06FacultyNo — present the X-ray systematically. It is a PA view; situs; then the CT ratio; the contour of the left heart border; then come to the right side — right atrium, SVC, aortic knuckle, pulmonary artery — like this. Then the pulmonary vasculature, and the lung parenchyma, and the bones.

00:41:42CandidateX-ray PA view, sir: trachea central, situs solitus and levocardia. There is evidence of right atrial enlargement, in the form of it occupying more than 3 intercostal spaces; a left aortic arch; and dilatation of the main pulmonary artery, in the form of obliteration of the pulmonary bay. There is straightening of the left heart border; the apex I am not able to make out, sir.

00:42:25FacultyThat is what you know. What is that segment below the pulmonary artery?

00:42:30CandidateLeft atrial appendage, sir.

00:42:34FacultyNo, not here. In this case, what do you think?

00:42:43CandidateRVOT enlargement — enlarged RV outflow tract.

00:42:54FacultyFine. So what do you think from the ECG and X-ray, before you go to echo? You have dilatation of the MPA, RPA and LPA — massive dilatation of the MPA, RPA and LPA. What are the conditions on X-ray?

00:43:17CandidateOne could be Lutembacher syndrome; the second is...

00:43:26FacultyWhere you get dilatation of the MPA, RPA and LPA: tetralogy with absent pulmonary valve. So these are the two conditions where you get massive dilatation. So it could be Lutembacher.

00:43:43So from the ECG, the X-ray and the clinical findings, what do you perceive? Tell us the diagnosis, then go to echo.

00:43:49CandidateYes, sir: ASD with MS, probably MR — mitral disease.

00:44:00FacultyYes, mitral disease, probably MS or MR. Let us see.

00:44:14And RV dysfunction, because you are saying the JVP does not [vary with respiration].

00:44:18CandidateThe JVP, sir — dropping with respiration, or could it be on both the right and left side during inspiration? [unclear]

00:44:27This parasternal long-axis view shows a dilated left atrium, a thickened mitral valve with restricted movement of the PML and doming of the AML. LV size is normal, but LV function seems decreased.

00:44:48Faculty[unclear] The patient has severe MS — that is fine. Is the LV dilated or small? The RV is dilated; the RVOT is dilated. On Doppler, only trace MR; the aortic valve is normal. Go to the other view. Next.

00:45:32CandidateSir, the septum is D-shaped in both systole and diastole, sir, and its movement is paradoxical — paradoxical septal motion.

00:45:45FacultyM-mode, kindly, please. This is classical paradoxical septal motion: the posterior wall is going up, and the septum is coming down.

00:45:48CandidateYes, sir.

00:45:48FacultySo nicely recorded.

00:46:08CandidateApical 4-chamber view showing both atria dilated, a normal-sized left ventricle and a dilated right ventricle with normal RV function. On colour interrogation there is dropout in the interatrial septum, with a large ASD, and colour confirms the presence of the ASD with a left-to-right shunt and increased...

00:46:41FacultyOkay — increased what?

00:46:41CandidateIncreased turbulence across the mitral valve, sir.

00:46:52FacultySo is there actually turbulence across the mitral valve? [unclear] There is no turbulence; there is laminar flow. Why? How do you explain that, in spite of severe MS, there is no turbulent flow?

00:47:20So remember: any gradient across the mitral valve in the presence of an ASD is significant. Simultaneously take the LA pressure, the RA pressure and the LV pressure; any gradient — even a one-mm gradient — you can't ignore, if taken properly, in the presence of an ASD.

00:47:44So there is laminar flow because of the large ASD, [unclear] all the blood going to the left ventricle. So the RV is hugely dilated; you are getting the RV apex in the 7th intercostal space because of that. And you don't get any TR there, nor any MR.

00:48:04CandidateNo MR, sir.

00:48:04FacultyThe RVOT murmur — because the RV is forming the apex, all events are heard better at the apex also. The RVOT murmur is heard at the apex also; the same murmur throughout the precordium is what you are hearing.

00:48:11CandidateYes, sir, a single murmur.

00:48:19Sir, but I thought the quality of the murmur at the apex was different, sir. I thought it was soft, blowing.

00:48:22Faculty[unclear] There is no TR. And you said there is some small VSD — there is no VSD. So the thrill is because of the large flow — huge flow.

00:48:41CandidateI did not expect a flow murmur to have a thrill.

00:48:44FacultyRemember that: when you are thinking of ASD clinically and you get a thrill in the pulmonary area, think of mitral disease with ASD. That is the clinical rule. If P2 is loud [think of mitral disease]; if P2 is soft, think of ASD with pulmonary stenosis.

00:49:05Okay, so what is your plan next? In modern times, what is iatrogenic Lutembacher? Lutembacher has an MS-dominant type and an ASD-dominant type. There is one iatrogenic Lutembacher, which occurs only after something has been done. What is it?

00:49:36No.

00:49:38CandidatePost ASD closure?

00:49:42Faculty[unclear] Septal puncture in a case of mitral stenosis.

00:49:58Okay, so what do you do for this case? Management. Here we are not getting a TR jet. Can you assess the pulmonary pressure by echo?

00:50:17CandidateYes, sir, we can trace a PR jet if at all it is there. If there is PR, then we can get the pulmonary pressure.

00:50:28FacultyThere is no PR now — then? [unclear] Do you know pulmonary acceleration time?

00:50:41CandidateYes, sir, pulmonary acceleration time can be used.

00:50:50FacultySo what is your plan for this case?

00:50:58CandidateSo repair — mitral valve replacement with closure of the ASD.

00:51:08FacultyYou want to replace the mitral valve, or...? [unclear] If the valve is suitable for repair?

00:51:17CandidateYes — repair with ASD closure. OMC: open mitral commissurotomy, and then ASD closure.

00:51:29FacultyDoes the tricuspid valve need to be addressed here?

00:51:33CandidateNo need. The tricuspid valve need not be addressed.

00:51:40FacultyIs there any indication — what are the indications for tricuspid valve intervention in ASD with TR? ASD with MS, or ASD only.

00:51:52CandidateIf there is significant annular dilatation of more than...

00:51:52FacultyHow much? 40 mm. Not for everybody — there is body surface area.

00:52:01CandidateIt could be by body surface area. I don't remember.

00:52:07Faculty21 mm per square metre. And intraoperative measurements which can tell you that this patient requires TV repair?

00:52:15CandidateIntraoperative findings, sir — I'm not [sure].

00:52:15FacultyIntraoperatively, a TV [annulus] of more than 70 mm. Or, dilate the valve and put a device — what is your opinion?

00:52:24CandidateSorry, sir — dilate the valve by balloon and put a device: PTMC plus ASD device closure, considering the rims are adequate.

00:52:34FacultyIs it an easy one or a difficult one? Which one is easy — ASD [closure] or PTMC?

00:52:41CandidateSir, with a large ASD there is no need for a transseptal puncture; we can directly take the balloon, right?

00:52:46FacultyYes, if the rims are adequate we can take it. But with the balloon it is difficult to go into the mitral valve — very difficult to enter the LV every time. Is PTMC easy in this subset?

00:53:05CandidateIt's difficult, sir.

00:53:05FacultyBut where do you find it difficult?

00:53:14CandidateWhen crossing into the LA — because of significant shunting at the LA level, the LV is small; and the balloon [unclear], the balloon is pushed back into the LA.

00:53:26FacultyDo you know what reverse loop entry is — reverse loop entry of the wire? After you have done a transseptal puncture, there are multiple ways of entering the LV using the PTMC balloon. One of the methods is the reverse loop.

00:53:46CandidateYes, sir, but I am not very aware of it.

00:53:50FacultyWe will give a summary.

00:53:54Nice presentation. Probably you were a bit biased by the "hole in the heart" and went for VSD and other things. So one learning point from this presentation: whenever you have ASD findings in the background of severe PH at such a young age, bring in mitral disease. You presented the differential diagnosis for right heart failure relatively well, which includes this one plus Lutembacher, which is high on the cards. Constrictive pericarditis and RCMP should also be included up front as differentials, but yes, you can rule them out with further examination. Thanks.

00:54:33Thank you, doctor. Thank you, teachers, for the excellent discussion. We will squeeze in one last case; I request the examiners for the next case to come up. This is the last case for the day. We'll keep it to 45 minutes, please.

11

Day 1 · 17-Oct-2026 · 17:59 hrs · 47 min

Tetralogy of Fallot Case Discussion

  • Tetralogy of Fallot
  • Cyanotic congenital heart disease
  • Hyperviscosity
  • Single second heart sound
  • ECG and chest X-ray in TOF
  • Echocardiography
  • Surgical planning
  • Exam technique

This recording starts partway through Short Case 2, after the history: an 18-year-old male with cyanotic congenital heart disease, presented by a DM/DrNB candidate as tetralogy of Fallot. Examiners and floor participants questioned the candidate on CHD epidemiology, complications of cyanosis and hyperviscosity, embryology and syndromic associations, and then on examination findings, especially the JVP, parasternal pulsations and the single second heart sound. The ECG, chest X-ray (described as near-normal) and echocardiogram (large VSD with aortic override, bidirectional shunt, hypoplastic pulmonary valve and annulus, valvular and infundibular RVOT gradient) were reviewed. Management discussion covered pulmonary artery indices, transannular patch, restrictive RV physiology, post-repair arrhythmia and ECG, and palliative options. The examiners closed with advice on exam conduct.

Case
18-year-old male with cyanotic congenital heart disease and no prior procedure; recurrent frontal headaches relieved by medication, no seizures; becomes intensely cyanotic after a warm-water bath; central cyanosis and clubbing in all four limbs, SpO2 80% in upper and lower limbs, conjunctival congestion, pulse 70/min regular, JVP not elevated.
Diagnosis discussed
Tetralogy of Fallot with a large VSD, bidirectional shunt and hypoplastic pulmonary valve/annulus (valvular and infundibular RVOT obstruction).

Teaching points

  1. The commonly quoted incidence of congenital heart disease is about 8 per 1,000 live births, excluding bicuspid aortic valve; neonatal echo screening that counts small VSDs gives higher figures.
  2. Brain abscess in cyanotic heart disease is linked to paradoxical embolism across the right-to-left shunt, and is more often of dental than otitic origin.
  3. Hyperviscosity symptoms include headache, tinnitus, irritability, loss of concentration and mucosal bleeding; arthropathy in cyanotic patients is more likely uric-acid related.
  4. When measuring saturations, use two oximeters (upper and lower limb) and then swap them to exclude device error.
  5. In TOF the JVP is usually normal despite a systemic-pressure RV, because the VSD decompresses the RV and the RV has been at systemic pressure since birth.
  6. Whenever you call S2 single, be ready to classify the causes: only A2 audible, only P2 audible, or both components fused (e.g. VSD).
  7. In TOF, P2 is inaudible because the pulmonary valve is thickened and immobile and PA pressure is low; murmur intensity is inversely related to stenosis severity, and the murmur disappears during a spell.
  8. In TOF the PA pressure stays low (examiner: usually below 20 mmHg systolic); a warm bath worsens cyanosis by lowering SVR, which is the opposite of squatting.
  9. A right aortic arch occurs in about 25% of TOF; arch side is defined by which bronchus the arch crosses, not tracheal indentation alone. Severe PS with an intact septum does not cause oligemia unless the RV fails.
  10. Before repair, assess PA size (McGoon ratio >1.5 favourable, Nakata index) by CT or cath. After repair, expect RBBB and loss of the abrupt V1–V2 transition, and watch for junctional ectopic tachycardia (treated with cooling and electrolyte correction). If repair is not possible, RVOT or branch PA stenting are options. In the exam, give complete answers and do not be defensive.
Edited transcript 329 paragraphs · 4,669 words

00:00:01Candidate1.2 per thousand live births.

00:00:05FacultyNo. It's a very constant figure; it has not come down at all.

00:00:09CandidateI'll check, sir.

00:00:11FacultyAnybody?

00:00:13Audience8 per thousand live births.

00:00:15FacultyExcluding?

00:00:18AudienceBicuspid aortic valve.

00:00:21FacultyThere are some studies which have shown up to 50 per thousand, because a lot of echoes are being done in neonates; if you count small VSDs, it may go up to that. But generally the figure quoted in most books is 8 per thousand. What is the most common cyanotic congenital heart disease?

00:00:41AudienceTGA.

00:00:44FacultyUsually, when do TOF patients develop cyanosis?

00:00:49CandidateAfter six months to one year of age they develop cyanosis.

00:00:58FacultyDid you ask for any history of seizures or headache?

00:01:02CandidateComplaints of recurrent headaches are there, sir, in the frontal region, subsiding with medication. No history of seizures, no history of [other] symptoms.

00:01:11FacultyOkay. Why seizures?

00:01:16CandidateHyperviscosity in cyanotic congenital heart disease can cause problems.

00:01:22FacultyWhat else? What else?

00:01:26CandidateBrain abscess, causing...

00:01:26FacultyWhy is brain abscess common after two years, and CVA below two years?

00:01:35CandidateBrain abscess — the organism is from otitis, more common in school-going age.

00:01:43FacultyOtitis?

00:01:45CandidateOtitis media — so connected to ear infection, leading to...

00:01:45FacultyIt can occur, but it's more common with dentition — with the teeth.

00:01:59Why is it more common in cyanotic heart disease and not so much in acyanotic?

00:02:06CandidateHyperviscosity, [unclear].

00:02:15FacultyNothing else? Specifically for cyanotic disease: paradoxical embolism, right? Something from the right side can go to the left side when there's a right-to-left shunt. Okay, all right. What is your differential diagnosis? What other complications can occur in a cyanotic heart disease? Brain abscess is one, already discussed.

00:02:48CVA; you said brain abscess. Anything else can occur over time, in someone like this, 18 years of age?

00:02:56CandidateVein thrombosis [unclear].

00:03:00FacultyVein thrombosis? What is the manifestation of hyperviscosity syndrome? What does it mean — hyperviscosity syndrome?

00:03:10CandidatePolycythemia causing thrombosis, peripheral vascular disease, and hyperuricemia.

00:03:21FacultyWhat does the patient complain of? What does the patient complain of?

00:03:24CandidateRecurrent headaches.

00:03:26FacultyThen?

00:03:26CandidatePeripheral ulcers and peripheral vascular disease. Dactylitis.

00:03:33FacultyWhat? Dactylitis? What is that, dactylitis?

00:03:37CandidateI don't know. Small joint involvement.

00:03:42FacultyDue to what?

00:03:45CandidateIf there is joint involvement — occlusion of the arteries.

00:03:50FacultyCould be that, but more likely uric acid arthropathy.

00:03:54CandidateSplenomegaly.

00:03:55FacultyUric acid increases, no.

00:03:57CandidateUric acid increases — hyperuricemia. Gouty features.

00:04:02FacultyWhat are the other common hyperviscosity symptoms? You mentioned headache.

00:04:12CandidatePeripheral venous disease.

00:04:14FacultyOkay.

00:04:15CandidateThen arthritis, hyperuricemia.

00:04:18FacultyNo, repeating what's already been said doesn't help much.

00:04:21CandidateSplenomegaly.

00:04:22FacultyIs that a hyperviscosity thing? [unclear] Tinnitus, headache, irritability, loss of concentration — these are the features of hyperviscosity syndrome. Anything mucosal?

00:04:37CandidateMucosal bleeding.

00:04:40FacultyOkay, so you still haven't given us the diagnosis.

00:04:44CandidateCyanotic congenital heart disease, sir, with decreased pulmonary blood flow. It could be VSD-PS physiology.

00:04:54FacultyOkay. What are the VSD-PS physiologies you're considering here?

00:04:58CandidateTOF, then DORV with VSD-PS, or TGA with VSD-PS.

00:05:11FacultyTGA with VSD-PS — when will they become cyanotic?

00:05:14CandidateThey become cyanotic very early, immediately after birth. In this condition that is not there, and he is maintaining without any procedure till now. So most probably TOF, or DORV with VSD-PS.

00:05:31FacultyOkay. Most probably tetralogy. What is the monology of Stensen?

00:05:40CandidateMonology: anterior cephalad deviation of the conal septum.

00:05:46FacultyStensen — why is it called the monology of Stensen? Anybody? Anybody? No, no — I am asking about Stensen. Who is Stensen? Monology of Stensen — where did the name Stensen come from? Who described it?

00:06:09AudienceNiels Stensen.

00:06:25FacultyThe names I mentioned — same person. What is trilogy?

00:06:32CandidateThere won't be [unclear] overriding.

00:06:40FacultyTrilogy?

00:06:41CandidateTrilogy, pentalogy — pentalogy is with ASD, sir: ASD, VSD, overriding, with PS.

00:06:50FacultyTrilogy, anybody?

00:06:55AudienceSevere pulmonary stenosis, RVH, and a right-to-left shunt at the atrial level, either due to a stretched foramen ovale or an ASD.

00:07:05FacultyASD. What is the second heart field?

00:07:08CandidateThe second heart field, during development, is responsible for the RV outflow tract.

00:07:18FacultyFrom where does it come? Normal development comes from where, and the second heart field comes from where?

00:07:30CandidateSplanchnic mesoderm.

00:07:31FacultyYes, that is splanchnic mesoderm, which becomes the heart. But for the second heart field?

00:07:38CandidateSomatic mesoderm.

00:07:40FacultyNo, it comes from the pharyngeal pouches. It comes from the pharyngeal pouches — the second heart field. That contributes, as you said, to outflow tract development.

00:07:51CandidateRight.

00:07:52FacultyWhat are the syndromic tetralogies?

00:07:57CandidateSyndromic: CATCH-22 defect, DiGeorge syndrome, Turner's, [unclear], Williams syndrome, Alagille syndrome.

00:08:10FacultyHave you heard of Poland syndrome? What is that? Do you know what it is?

00:08:15CandidateI'm unable to recall. Not sure.

00:08:17Faculty[unclear] What is Poland's?

00:08:21AudienceAbsent pectoralis major.

00:08:39CandidateThe patient is conscious, coherent and cooperative. There is cyanosis and clubbing of all limbs. Blood pressure... pulse rate is 70 per minute, regular, normal in rhythm, volume and character.

00:08:54FacultyFor cyanosis, you have to say whether it is uniform, or lower limbs only, or all four limbs.

00:08:59CandidateAll four limbs, uniform cyanosis, and the lips also — central cyanosis.

00:09:04FacultyCentral cyanosis? And uniform?

00:09:07CandidateYes.

00:09:07FacultyCan you check the saturation?

00:09:08CandidateSaturation is 80% in both upper and lower limbs, sir.

00:09:13FacultyAnything in the eyes?

00:09:14CandidateThere is conjunctival congestion in the eyes.

00:09:19FacultyIt's not so important for this case, but when you take saturations, especially if there is PH at all, take two oximeters, one for the upper limb and one for the lower limb. Measure, then reverse the oximeters, so that technical error due to the oximeter is avoided. That's what you are supposed to do.

00:10:00CandidateIn the sitting position the JVP was not visible; the JVP is not elevated. At 45 degrees there is a normal a wave greater than v wave, with normal descents, and no signs of...

00:10:10FacultyNormally, which is greater, a or v?

00:10:16Candidatea greater than v, with x and y descents.

00:10:22FacultyOkay. And is there any difference in the LA? In the LA pressure tracing, which wave is more prominent?

00:10:33Candidatev greater than...

00:10:33FacultyDo you know why?

00:10:41CandidateYes. This wave is more prominent and...

00:10:46FacultyJust repeat from the beginning.

00:10:51CandidateThe RA is a more compliant chamber compared to the LA. The LA has a posterior [position]... less compliant.

00:11:02FacultyThe LA is less compliant. [unclear] So here the JVP is normal, not elevated. The right ventricle, according to you, is at systemic pressure. If your diagnosis is TOF, what is the RV pressure?

00:11:23CandidateIt will be the same as the systemic pressure, sir.

00:11:26FacultyAnd why isn't the JVP abnormal? You have pulmonary stenosis with the RV at systemic pressure. You would expect something abnormal in the JVP, and probably even the JVP to be elevated. Why doesn't it happen here?

00:11:46CandidateRV function is normal, and maybe there is an ASD.

00:11:53FacultyCome on, somebody — I'm sure. Give a mic to someone. Why?

00:12:01AudienceThe VSD decompresses.

00:12:05FacultyAnd this RV is accustomed to systemic pressure from birth — normal, isn't it? So that generally doesn't happen. Okay, so the JVP is normal. Can you have a prominent a wave?

00:12:18CandidateNo.

00:12:19FacultyAdult TOF... or RV failure?

00:12:24CandidateWhen there is RV failure, there can be elevation of the JVP in adult TOF.

00:12:28FacultyBut why would it happen? Why should it happen, if it didn't happen at this age, or a little later? Why should it happen? What will you consider? What else?

00:12:42CandidateTOF with a restrictive VSD can also have an elevated JVP.

00:12:46FacultyIn TOF, do you have a restrictive VSD?

00:12:48CandidateA [unclear] variant of TOF can have a restrictive VSD.

00:12:52FacultyWhen can it become restrictive? Can it happen?

00:12:56CandidateWhen there's adherence of the septal tricuspid leaflet.

00:13:00FacultyWhat are the other conditions in which you may get [an elevated JVP]?

00:13:03CandidateRestrictive...

00:13:05FacultyNo.

00:13:06Candidate[unclear] If there is hypertension, or associated other valve lesions like AR... AR, or collaterals, or PDA.

00:13:26FacultyOkay. So continue.

00:13:31CandidatePrecordium: on inspection, the chest is bilaterally symmetrical, with no engorged veins or scars. On inspection and palpation there are left parasternal pulsations, and the apex is parasternal, in the left 5th intercostal space, 1.5 to 2 cm medial [to the midclavicular line]. It is diffuse, in continuity with the parasternal pulsations.

00:13:58FacultyRV type of apex? So is a parasternal heave there?

00:14:03CandidateNo heave, sir. Only pulsations.

00:14:06FacultyPulsations — that means visible pulsations, nothing palpable?

00:14:09CandidateNot sustained. Only grade 1.

00:14:14FacultySo if it's not sustained, it's not [a heave]. When do you say... I asked, are there any parasternal pulsations?

00:14:22CandidateParasternal pulsations are there on palpation. Pulsations are there, but it's not a heave.

00:14:28FacultyNot a heave. Okay.

00:14:34CandidateAnd the apex is in the fifth [intercostal space], medial to the midclavicular line, in continuity with the parasternal pulsations, diffuse in character — an RV type of apex.

00:14:46FacultyWhat is the difference between a parasternal pulsation and a heave, and what is the significance?

00:14:52CandidateParasternal pulsation and heave: a heave is sustained for more than two-thirds of the cycle.

00:15:01FacultySo do you know some conditions where you get these two different findings — at least one or two?

00:15:07CandidateWhen there is pressure overload with an intact IVS, where there cannot be any decompression.

00:15:18FacultySo pressure overload of the right ventricle versus volume overload of the right ventricle. And is there yet another condition where you can get a parasternal lift?

00:15:28CandidatePH can have...

00:15:31FacultyThat is pressure overload. [unclear] You don't know what I mentioned? Come on. Anyone?

00:15:42Audience[unclear] Don't know. Pulmonary venous...

00:15:49FacultyNo, no. LA pulsation. In severe MR, the ventricle empties into the LA — LA pulsation. The LA is the most posterior chamber, no? It pushes the heart forward. The most anterior chamber is the RV; the most posterior is the LA. That's where you get a late systolic parasternal lift. Okay. Continue.

00:16:17CandidatePercussion: liver dullness is on the right and gastric tympany on the left. The right heart border is parasternal and the left heart border corresponds to the apex. Auscultation: the first heart sound is normal.

00:16:29FacultyYou didn't mention the second space — the dullness.

00:16:32CandidateSecond space — no dullness.

00:16:36FacultyAny palpable sound or anything?

00:16:39CandidateThe second heart sound could not be appreciated [on palpation].

00:16:41FacultyOkay.

00:16:44CandidateAuscultation: the first heart sound is normal. The second heart sound is single, loud, probably A2. No S3, no S4, no clicks. There is a grade [unclear] ejection systolic murmur in the left third–fourth intercostal space; it is a harsh ejection systolic murmur, prolonged, late peaking, with no radiation to the carotids, and increasing with inspiration.

00:17:06FacultyAnd what?

00:17:06CandidateIt is getting conducted all over the chest.

00:17:11FacultyIncreasing?

00:17:12CandidateWith inspiration.

00:17:17FacultyOkay, so — ejection systolic murmur. As I said earlier, when you say single second sound, you must say what the causes of a single second sound are.

00:17:29CandidateI am thinking in terms of PS, sir. So this second heart sound is A2.

00:17:33FacultySo in PS, is the second heart sound single?

00:17:43CandidateWe appreciate it as single.

00:17:46FacultyWhy is P2 not audible? You said PS — P2 not audible, A2 audible. Why, in PS, is P2 not audible?

00:18:02CandidateSevere PS...

00:18:03FacultyNo, why not?

00:18:08CandidateIncreased flow across the aorta, so A2 is... We appreciate it as a single heart sound.

00:18:16FacultyYou are appreciating it, but why is there no P2 here? What will happen to the splitting in pulmonary stenosis — isolated pulmonary stenosis?

00:18:28CandidateDelayed P2.

00:18:30FacultySo it's heard; it's delayed; it's not single. So here, why is it single just because of PS?

00:18:39CandidateBecause all the blood flow is shunted across to the aorta, and aortic flow increases, so A2...

00:18:46FacultyAll the flow? There is some flow [to the pulmonary artery], no?

00:18:54Yes — even in severe isolated pulmonary stenosis, usually it's not single; but it may be a wide split that is difficult to appreciate, and it'll be quite soft.

00:19:07CandidateIt is soft.

00:19:07FacultyYes. So, as I said, you should be careful when you say single. I agree with you — single.

00:19:12AudienceIt has been described, sir, in tetralogy of Fallot: an A2–P2 interval of 120 milliseconds has been recorded.

00:19:19FacultyA maximum A2–P2 interval of 120 milliseconds it can go to.

00:19:24P2 is not audible for many reasons. First of all, lack of mobility: if the valve is mobile, P2 will be audible even though severe PS is there. The pulmonary valve in tetralogy of Fallot is rudimentary, very thin — I mean, it is not mobile. So first, it is not mobile. Second, flow: P2 occurs at the [unclear] level of pressure, which is very low. So the movement is slow and the pressure is low, so P2 is inaudible. P2 is delayed because the RV infundibulum takes time to relax: the RV pressure is equal to the LV pressure, so during RV systole the RV infundibulum spasms, and it takes time to relax; so P2 is delayed. So P2 is not audible in tetralogy of Fallot because of the low pressure in the pulmonary artery; second, the valve is very thick and immobile.

00:20:31There is mild Fallot, severe Fallot and moderate Fallot. What is the RV systolic pressure in these, and what is the pulmonary artery pressure in these?

00:20:46CandidateIn severe, it can be systemic or suprasystemic pressure.

00:20:52FacultyIn TOF? The RV pressure becomes suprasystemic in TOF?

00:20:57CandidateIt will be equal, sir. LV and RV pressures will be equal.

00:21:01FacultyRegardless of the type. Pulmonary artery pressure?

00:21:04CandidateIf there is PS, the pulmonary artery pressure should remain low.

00:21:08FacultyIn?

00:21:09CandidateSevere PS.

00:21:11FacultyIn mild... I mean, we are talking about TOF. Mild, moderate — what happens? The mild form of TOF — what is the pulmonary artery pressure when you do a cath in tetralogy of Fallot?

00:21:28CandidateIn severe PS, the pulmonary artery pressure remains normal; it won't increase. In mild PS, if the effective flow to the pulmonary circulation is increased, then there can be an increase in pulmonary flow.

00:21:40FacultyNo, that is not valid. In Fallot it is regardless of this. It will remain at how much systolic? Usually 8 to 10 systolic — that is the pressure in Fallot. Less than 20, maybe. Less than 20.

00:21:54Wait. This patient gives one nice history. He says whenever he takes a warm-water bath, he becomes intensely cyanotic. Why?

00:22:04CandidatePeripheral vasodilatation, causing a decrease in systemic vascular resistance, so increasing flow to the aorta and decreasing flow across the PA, causing more cyanosis.

00:22:17FacultyOkay. It's the opposite of squatting, right?

00:22:21CandidateYes.

00:22:21FacultyYou know how squatting helps? It increases the systemic vascular resistance.

00:22:25So when you come with this single second heart sound and say that it is so, then you will be asked — classify it into three different scenarios. It will be single because you are hearing only the aortic component — there is only an aortic component; it will be single because of the pulmonary component only; or it will be single because both of them are fused — superimposed. Superimposed in what condition?

00:23:01AudienceVSD.

00:23:04FacultySuperimposed — VSD. So try to classify it. Even if you don't classify it, when the examiner asks you, you'll know which ones to mention. You have to keep this in mind whenever you say the second heart sound is single; you can be sure you will get this question: causes of a single second heart sound.

00:23:33Sir asked about mild, moderate and severe. What will happen to the findings in these cases? Mild, moderate, severe. We say it is severe PS and a systemic RV — what happens to the findings?

00:23:54CandidateCyanosis.

00:23:56FacultyOkay — no, the precordial findings. Now, you have a child; you have examined the child, and now the child is having a spell.

00:24:05CandidateThe murmur disappears in a child having a spell, because of severe [obstruction]; there is no flow across the valve to produce a murmur.

00:24:11FacultySo, unlike in intact ventricular septum, the loudness of the murmur is inversely proportional to the severity of the stenosis. What else decides the intensity of the murmur? One is the flow. Anything else? Discuss.

00:24:35Coming to what you mentioned: the murmur is harsh in quality, and you said late peaking. How can you explain a delayed-peaking murmur?

00:24:48CandidateDelayed peaking — increased severity?

00:24:51FacultyNo. What is it? You told us the murmur was [unclear] and late peaking. Is it possible in tetralogy?

00:25:02CandidateNo.

00:25:04FacultyThe RV has got two outlets [unclear]. So the murmur cannot be prolonged. A short murmur — severe Fallot gives a short murmur, a very short murmur. So it cannot be a long, delayed murmur.

00:25:38Let's go on. What investigation do you want? What do you expect?

00:25:46CandidateRVH with early transition, or RA enlargement; right axis deviation.

00:25:55FacultyOne question, can I ask? See, you've got the RV pressure equal [to the LV]. So why do you get an RV type of apex here? Why should it be an RV type of apex? The pressures are equal, no — 120 and 120. You should have a biventricular apex. Why should it be an RV apex?

00:26:26CandidateOverriding of the...

00:26:28AudienceThe LV is underfilled.

00:26:30FacultyUnderfilled LV. That's why you are not getting q waves in V5–V6.

00:26:50Yes, go ahead.

00:26:53CandidateHalf-standardization ECG showing a heart rate of 60 to 70 per minute, with the axis — right axis deviation...

00:27:16FacultyHow much is the axis? Is the axis important?

00:27:20CandidateYes, sir. If it is extreme axis deviation or in the second quadrant — classical TOF or DORV. In this, it is in the second quadrant only, sir, around [unclear] degrees.

00:27:38FacultyOkay.

00:27:41CandidateThere is RVH, and from V1 to V2 — V1 is R and V2 is negative — so early transition.

00:28:00FacultyIs it a classical TOF [unclear]?

00:28:00CandidateIt fits into right axis deviation and RVH, sir.

00:28:09FacultyBut early transition should be in V2–V3? It's there, no? V2. From V1 to V2 — look, that's a very tall R wave. [unclear] Is it in favour of TOF or not?

00:28:23CandidateYes, sir. Yes, ma'am, it is in favour of TOF.

00:28:29FacultyWhy is it important to know the frontal-plane QRS vector in tetralogy?

00:28:36CandidateThe axis, sir?

00:28:38FacultyNo, the frontal-plane QRS loop. Do you know about that? Clockwise loop or counterclockwise loop?

00:28:50CandidateDORV will have a counterclockwise loop, sir. Classical TOF will have a clockwise loop.

00:28:57FacultyCan classical TOF have a counterclockwise loop? Nowadays it's not too important, because vectorcardiography is not used much, but...

00:29:17CandidateYes, sir — AVCD with VSD-PS.

00:29:24FacultyCan we have the X-ray?

00:29:33CandidateChest X-ray PA view showing situs solitus — the fundic gas bubble is on the left and the liver is on the right — levocardia, and the pulmonary vasculature...

00:29:49FacultyHey, don't — sir has just said how to go about an X-ray, no? You don't jump to the pulmonary vasculature. Is there cardiomegaly?

00:29:57CandidateNo cardiomegaly.

00:29:59FacultyThen you describe the borders, chamber enlargement.

00:30:04CandidateComing from the right: RA enlargement can be seen, occupying three intercostal spaces, and the LA border — prominent aortic knuckle.

00:30:17FacultyLA? LA where?

00:30:19CandidateNo, no — the left side, the left heart border. The left heart border looks normal, with a prominent aortic knuckle.

00:30:28FacultyIs it a classical X-ray — classical of TOF? Is it?

00:30:33CandidateNo, sir. An upturned RV apex I am not able to make out clearly.

00:30:38FacultyActually, if I had not known the diagnosis, I would have written "normal X-ray". Oligemia is also not there.

00:30:45CandidateNo.

00:30:49FacultySo you said the apex is to the left and the fundic gas is to the left. Anything else you want to mention? [unclear] Prominent aortic... The aortic arch. A prominent aortic knuckle — is it right or left? Shouldn't you try and see if it's a right aortic arch or a left aortic arch?

00:31:20CandidateBy the indentation on the trachea — whether it is on the right or left — we can tell whether it is a right or left aortic arch. Here I am unable to make it out. Maybe left; I am not able to make it out.

00:31:31FacultyHow often do you get a right aortic arch?

00:31:33CandidateIt is common in TOF, sir.

00:31:35FacultyHow often? What percent? Is it two percent, five percent, fifty percent, a hundred percent? Anybody?

00:31:46Audience[unclear]

00:31:48FacultyHow much?

00:31:51Audience25 percent.

00:31:52Faculty25 percent. In TOF it is 25. Where is it commonest?

00:31:59AudienceTruncus, TOF — right arch. Pulmonary atresia — VSD with pulmonary atresia [unclear].

00:32:06FacultyPulmonary atresia. So remember that the arch is not decided just by the indentation of the trachea; it is decided by which bronchus it loops over — the right or the left bronchus.

00:32:16What is the clinical finding in a right aortic arch? What clinical finding — what am I asking?

00:32:31CandidateAortic pulsations on the left...

00:32:31FacultyYou have to percuss; sometimes inspect also; but by percussing, you will get the dull note on the right.

00:32:48Now you come to the lungs. Do you have anything to say?

00:32:51CandidateNormal vasculature. No oligemia, sir.

00:32:57FacultyWhat about severe PS with intact ventricular septum? Do you get oligemic or normal [lung fields]? Intact IVS... Anyone? Or as a differential...

00:33:17AudienceIsolated pulmonary stenosis — there should not be any oligemia.

00:33:21FacultyNo, you don't get oligemia even there, because the entire cardiac output still has to go through the lungs, right? So unless there's some shunting...

00:33:29AudienceUnless the RV fails.

00:33:30FacultyOr it fails. So even in severe PS there is no oligemia. Okay, so this doesn't seem to help much. Let's go to the echo.

00:33:43What is the incidence of bicuspid pulmonary valve?

00:33:49CandidateI will check.

00:33:54Echo showing a parasternal long-axis view of a large VSD with overriding of the aorta, with...

00:34:04FacultyWhen do you say overriding?

00:34:09CandidateMore than 50% overriding.

00:34:13Unclear[inaudible]

00:34:39FacultyNo continuity? Is it continuous or discontinuous?

00:34:42CandidateDiscontinuous.

00:34:44FacultyHere — aortic–mitral continuity is there or not?

00:34:48CandidateNo, not there.

00:34:51FacultyIf it is there, what is it continuous with? The AML is continuous with what? It is continuous, no?

00:34:59CandidateAortic valve. It is continuous.

00:35:02FacultyContinuous with what? Continuous with what?

00:35:06CandidateIt is continuous — the mitral is continuous with the aortic valve.

00:35:10FacultyYes. Which cusp of it?

00:35:13CandidateNCC.

00:35:15FacultyOkay. The aortic valve hinge point and the mitral AML. When do you say restrictive VSD or non-restrictive VSD, echo-wise? Do you know?

00:35:30CandidateThe gradient across the VSD.

00:35:33FacultyOkay, that's on Doppler. But without that, just by looking at the size, is there any criterion like that? Okay, go to the next one, please.

00:35:50CandidateDoppler of the same, showing the VSD with a bidirectional shunt, with no AR and no gradient across the aorta. Colour Doppler of the parasternal long axis showing bidirectional flow across the VSD, with no AR, no AS, and normal mitral flow.

00:36:13FacultyWhat is that round shadow below the left atrium?

00:36:20CandidateThe descending thoracic aorta.

00:36:24FacultyYes, next, please.

00:36:32CandidateShort-axis view showing the VSD — LA, RA, VSD, aorta in the centre — and the pulmonary valve, very hypoplastic. Here it is.

00:37:20Hypoplastic PA.

00:37:23FacultyThe PA is here, but how do you know the pulmonary valve exists, or is it atretic?

00:37:28CandidateOpening of the valve — opening and closing. Flow is not made out clearly, sir.

00:37:36FacultyFlow across the valve. So thick, you know?

00:37:40CandidateYes. Thick, and the movement is very little. Thickened valve.

00:37:44FacultyBut remember, if there is a PR jet, there will be a valve. See, when you see that here...

00:37:49CandidateThere is PR, yes, sir.

00:37:50FacultyYes. That means there is a [valve]. Okay.

00:37:59The gradient across... Analyze these spectral Doppler signals. So this is the gradient — analyze that.

00:38:10CandidateThis is the gradient across the pulmonary valve...

00:38:10FacultyHuh? Pulmonary valve — where are you getting this?

00:38:18CandidateI guess... It is the gradient across the RVOT, sir. This is the RVOT gradient — more than four, so...

00:38:25FacultyNo, what is the shape? Why is the shape like this?

00:38:28CandidateValvular and infundibular — here is one, and this is one.

00:38:48Four-chamber view showing normal mitral and tricuspid [valves].

00:39:23FacultyWhat do you want to do about this case? What is your plan for this case?

00:39:28CandidateSo this is TOF with a hypoplastic pulmonary annulus and a large VSD. We can go for corrective surgery.

00:39:42FacultyBut you have to see the pulmonary artery sizes, no?

00:39:45CandidateYes, sir. We can do either a CT or a cath angiogram to see the pulmonary arteries and the presence of any collaterals. And then — McGoon ratio and Nakata index. The McGoon ratio is RPA plus LPA divided by the DTA. If it is greater than 2, it is good; greater than 1.5 is favourable; less than 1.5 is less favourable for repair — biventricular repair.

00:40:16FacultyAre you interested in knowing his hemoglobin and PCV?

00:40:22CandidateYes; polycythemia can be there, hyperviscosity, because he has been cyanotic for 18 years.

00:40:27FacultyWould you consider phlebotomy at this point? Or, in other words, what are the indications?

00:40:40CandidateSymptomatic, with CVAs, or...

00:40:44FacultyAnyone? Current indications for phlebotomy in cyanotic heart disease — current indications. That's important. Can you stand up and repeat?

00:41:22[Answer inaudible.] We have to do an iron profile also — iron profile. You have to have hyperviscosity [symptoms].

00:41:28Suppose the Nakata and these indices are telling you they are normal. So does this patient require a TAP?

00:41:37CandidateHe might require a transannular patch.

00:41:39FacultyTAP means what?

00:41:41CandidateTransannular patch. It is a very narrow area — a very hypoplastic PA — so he might require it.

00:41:49FacultySupposing the Nakata index and this index are not suitable for ICR — in this case, what do you want to do? What is the age of the patient?

00:41:59Candidate18, sir.

00:42:04FacultyNot suitable — what do you want to do? What is restrictive RV physiology? What is restrictive about it?

00:42:13CandidateThe VSD is restrictive, sir.

00:42:15FacultyNo, no, no — the RV.

00:42:16CandidateOh — restrictive RV physiology is where, in the immediate post-op period after TOF repair, the patient requires more volume and requires inotropes, because there is antegrade pulmonary flow in diastole in the PA. That is how we diagnose restrictive physiology. This can eventually be protective over the long term, to prevent RV dysfunction.

00:42:43FacultyWhat is the dreaded arrhythmia after TOF repair?

00:42:51CandidateVentricular and atrial.

00:42:55FacultyThose can be treated quickly also. Ventricular and atrial — what have you left out?

00:43:00CandidateJunctional.

00:43:03FacultyIn the immediate post-op period you get what you call non-paroxysmal junctional ectopic tachycardia. How do you treat it?

00:43:10CandidateFirst by cooling, and correction of dyselectrolytemia.

00:43:21FacultyWhat do you expect on the ECG after surgical repair? The same ECG, or some change?

00:43:29Candidate[unclear] After surgery, the sudden change was there...

00:43:41FacultyNo, no — what happens to the ECG?

00:43:43AudienceRBBB.

00:43:45FacultyRight. First of all, that sudden change from V1 to V2 — that sudden change of the QRS, the early transition — will disappear. And one more thing is RBBB — very common.

00:43:59I mean, if we ask the question, "If nothing can be done — nothing is possible — then what?" That they will ask you. [unclear] Because the surgeon doesn't want to operate, because the indices are not good — then what else? What are the options? Any interventions?

00:44:25CandidateRVOT stenting or branch PA stenting — RVOT stenting to relieve the RVOT [obstruction].

00:44:43FacultyI think you presented quite well. Defensive.

00:44:52CandidateDefensive, sir.

00:44:53FacultyActually, as an examiner, you don't want students to be defensive. This is not an MD or an MBBS exam; you are in a post-doctoral training programme, so don't be defensive. Talk like a consultant. Yes, that is the most important thing. You must be brave, and you must stand by what you said.

00:45:11When I initially became an examiner, there were others with me. One candidate answered everything very well — but why did he fail? He was very defensive. For one answer, three leading questions were required.

00:45:29It's conservative — usually it's five. Four or five questions we have to ask to get one answer. No, they don't want that in DM. But that's not the case with you; we are talking in general. Give the complete answer. Don't swallow words. Don't expect us to ask a follow-up question. Just try to give a complete answer. And TOF is the most common, in case you get it in the exam.

00:46:06Thank you, doctor. Thank you, teachers. Help her out. And thank you all for having a full house till 6.30 in the evening. We start at 8.30 tomorrow — another four really, really tough cases tomorrow, but very interesting cases. [The next day's presenters were announced.]

Day 2 Sunday, 18-Oct-2026

Aspire, Aim, Achieve!

12

Day 2 · 18-Oct-2026 · 08:42 hrs · 1 h 07 min

Hypertrophic Cardiomyopathy Case Discussion

  • Hypertrophic cardiomyopathy
  • LV outflow tract obstruction
  • History taking
  • Dynamic auscultation
  • Apical impulse
  • Echocardiography
  • Sudden cardiac death risk
  • Septal reduction therapy

A candidate presented the long case of a young man from West Bengal with exertional breathlessness, exertional chest pain and palpitations, and an examination showing a bifid pulse, a double apical impulse, an S4 and a dynamic ejection systolic murmur with a second apical systolic murmur. The faculty questioned the characterisation of angina and palpitations, the ranking of causes of LV outflow obstruction at this age, the mechanism of the double and triple apical impulse, dynamic auscultation and the timing of the MR murmur in HOCM. The discussion then covered the ECG, chest X-ray, echocardiography (systolic anterior motion, phenotypes, LA strain), sudden cardiac death risk markers including a signal-averaged ECG study, cardiac MRI, and the choice between surgical myectomy and alcohol septal ablation. Large parts of the recording were not captured by the transcription, including the last twelve minutes.

Case
25-year-old man (first stated as 24) from West Bengal, agriculturist; exertional breathlessness and exertional chest pain for 4 years, palpitations, fatigue and occasional giddiness for 2 years; no syncope; no family history of sudden cardiac death.
Diagnosis discussed
Hypertrophic cardiomyopathy with dynamic LV outflow tract obstruction (HOCM), systolic anterior motion of the mitral valve and mitral regurgitation; NYHA class II with normal LV function.

Teaching points

  1. The minimum features to call chest pain angina are a retrosternal site, a constricting, heavy or squeezing quality, aggravation by exertion and relief by rest; radiation is not required.
  2. From the history alone, palpitations should be characterised as arrhythmic or non-arrhythmic; not all arrhythmias are paroxysmal.
  3. When presenting the history, describe what the patient could do earlier, what he later could not do and what happens now, rather than labelling a functional class at the outset; the Canadian (CCS) classification is specific for angina.
  4. In a young adult with LV outflow obstruction, list HCM, valvular AS (bicuspid), subaortic membrane and rheumatic disease in order of expected prevalence at that age; premature atherosclerosis and coronary anomalies cannot be excluded outright.
  5. The normal RV (about 25 mmHg systolic) receives coronary flow in both systole and diastole; when RV pressure rises it acquires an LV-type coronary flow pattern it is not made for, which underlies RV angina.
  6. When describing a double apical impulse, state whether both components are systolic or one is presystolic (palpable S4); the triple ripple is very specific for obstructive hypertrophic cardiomyopathy.
  7. Dynamic auscultation is the window to diagnosis in HOCM: use stand-squat-stand and the strain phase (phase II) of the Valsalva manoeuvre, and the examiner should stand with the patient.
  8. In HOCM the LV ejects, the outflow obstructs and the MR follows, so the classical MR murmur is mid-systolic; it can be pansystolic when there is a primary abnormality of the mitral apparatus.
  9. The LVOT gradient is not a categorical risk marker for sudden death, but very high gradients are high risk; apical aneurysm, LV dysfunction, LA size, LGE over 15%, LVEF below 50% and septal thickness above 30 mm were cited as high-risk features.
  10. Surgical myectomy is preferred when there is associated mitral valve disease, mid-cavity obstruction or an unsuitable septal artery; the heart-block risk of alcohol septal ablation is about 2% in contemporary series, lower than when 3-4 ml of alcohol was used.
Edited transcript 285 paragraphs · 4,704 words

00:00:03CandidateMy patient is a 24-year-old male hailing from West Bengal. He studied up to BA and is an agriculturist by occupation. The informants are the patient himself and his father, and they are reliable.

00:00:23Coming to the chief complaints, he presented with exertional breathlessness and exertional chest pain since four years, and palpitations and fatigue since two years.

00:00:46History of presenting illness: the patient was apparently all right four years back. Until then he used to work on the farm for one to two hours continuously without any difficulty, including lifting heavy weights. Over the last four years he has had exertional breathlessness, which is insidious in onset and gradually progressive. Earlier it was functional class I breathlessness, occurring on working for more than three to four hours on the farm or on lifting heavy weights, but over the last two years it has progressed to functional class II: breathlessness while working on the farm for even half an hour, relieved by taking rest. There is no history of PND or orthopnea.

00:01:38He also complains of exertional chest pain since four years, which is retrosternal. He describes it as a sensation of heaviness; it is aggravated on exertion and sometimes after meals, and relieved by rest. Over the last two years it has progressed from functional class I to functional class II.

00:01:59He also complains of palpitations since two years, which are regular, gradual in onset and offset, and relieved by rest. There is no history of post-palpitation diuresis. He also complains of occasional giddiness, especially with the palpitations. There is no history of syncope or presyncope. He also complains of fatigue, functional class II, over two years.

00:02:28Coming to the negative history: no bilateral lower limb edema, abdominal distension, facial puffiness or decreased urine output; no hoarseness of voice or difficulty in swallowing; no fever with sore throat, multiple joint pains, or fever with rashes; no monthly IM injections; no recurrent respiratory tract infections in childhood; no hemoptysis or limb claudication; and no prolonged fever requiring IV antibiotics.

00:02:57Coming to the past history: for the above symptoms he visited a local doctor one year ago and underwent Holter monitoring, which was reported to be normal, and he was put on medications which he takes twice daily. Despite taking those medications the symptoms persist. There is no history of diabetes, hypertension, tuberculosis or airway disorders, and no surgery in the past.

00:03:30Family history: no cardiac disease in the family, no sudden cardiac death and no premature CAD. Personal history: he takes a vegetarian diet, appetite and sleep are normal, bowel and bladder habits are regular and normal, and he denies addictions.

00:03:49FacultyOkay, the history is over? I have a few points to be clarified. What is the age?

00:03:55Candidate25 years.

00:03:56Faculty25?

00:03:57CandidateYes sir, 25 years.

00:04:02FacultyYou said there is exertional breathlessness and exertional chest pain. After your analysis, are these two different things or the same thing? Can the breathlessness and the chest pain, both exertional, be due to the same pathology? He is telling you he feels difficulty in breathing, and he is clearly describing chest pain. Is that angina or non-anginal pain? It looks like typical angina, but he is only 25 years old. What in the history points towards angina, and what points to non-anginal pain?

00:04:50CandidateFirst is the site of the pain, sir. In typical angina it will be retrosternal, the character will be squeezing or constricting, and it radiates to the left arm, shoulder, back or jaw. It is aggravated on exertion and relieved by rest or sublingual nitrates.

00:05:11FacultySo you are very sure it is anginal pain?

00:05:14CandidateBut there is no radiation of pain, sir.

00:05:15FacultyYou are very sure it is anginal pain, is it?

00:05:19CandidateAll the features are such, but there is no radiation of pain.

00:05:23FacultyRadiation, you are saying? That may not be needed. What is the minimum needed to say angina? What are the minimum features to call chest pain angina?

00:05:33CandidateFor angina, the site is typically retrosternal; the quality is constricting, heaviness or squeezing; and it typically aggravates on exertion and is relieved by rest. Then it is typical angina.

00:05:57FacultyThe second point is palpitations. Is it a chief complaint or not?

00:06:02CandidateIt is a chief complaint.

00:06:02FacultyIt is a chief complaint. Then you have to elaborate further. From the history itself we should be able to tell at least whether the palpitations are arrhythmic or non-arrhythmic. How did he describe them, and what is your interpretation?

00:06:21CandidateIn the case of arrhythmic palpitations, the onset and offset will be paroxysmal. It will be regular...

00:06:25FacultyNot all arrhythmias are paroxysmal.

00:06:28CandidateAnd it will last for minutes.

00:06:30FacultyHow did you come to the conclusion that it may be arrhythmogenic?

00:06:37CandidateIf arrhythmogenic, it will be non-exertional, sir, and it will sometimes be associated with giddiness.

00:06:44FacultyPostural variation? Any relief with maneuvers like inducing vomiting or pressing the eyeball?

00:06:52CandidateYes, sir.

00:06:53FacultyOr massaging the... There is?

00:06:57CandidateNo, sir. He did not give [unclear].

00:06:59FacultyAnd you said giddiness and syncope, both?

00:07:03CandidateIt is not syncope. No syncope, sir. He reports giddiness occasionally, not always.

00:07:10FacultyNo grey-outs or...

00:07:11CandidateNo blackouts.

00:07:13FacultyThen you said he had similar symptoms one year back?

00:07:17CandidateNo, sir.

00:07:17FacultySimilar symptoms one year back?

00:07:19CandidateNo, sir. He has been having symptoms for four years. Over the last two years they have progressed, and they are associated with palpitations and fatigue.

00:07:26FacultyOkay. So when you are presenting the history of presenting illness, you are trying to give the functional class. It is a good habit not to label it as class I, class II, class III in the beginning itself. Better to describe some activities which he was able to do initially, which he was later unable to do, and what is happening at present.

00:07:52And did you use the Canadian classification or NYHA?

00:07:55CandidateI used NYHA.

00:07:57FacultyWhy? You said chest pain is there.

00:07:59CandidateI thought I would use... [unclear]

00:08:01FacultyWhich would you prefer? Are both the same or different? What is the difference?

00:08:08CandidateIt incorporates [unclear]. It incorporates postprandial angina. It is specifically for angina, sir.

00:08:23FacultyAt the end of the history, what is your working diagnosis? [inaudible]

00:08:34CandidateYes sir, postprandial sometimes; sometimes it is associated with meals.

00:08:44FacultyAre the palpitations exertional, or...?

00:08:46CandidateThey are exertional.

00:08:47FacultyAnd regular or irregular?

00:08:48CandidateRegular, sir.

00:08:49FacultyInsidious onset?

00:08:50CandidateInsidious onset, [unclear].

00:08:54FacultyCan you analyse this: what do you think this is? Valvular, congenital, myocardial or coronary vascular?

00:09:05CandidateSir, at this stage I would like to first consider the possibility of a congenital lesion. It could be a subaortic membrane.

00:09:15FacultyStraight away, huh? Why not muscular HCM?

00:09:19CandidateHCM can present the same way.

00:09:22FacultyHCM can present like this. Why not valvular obstruction? Why subaortic membrane?

00:09:28CandidateThat is also what I was about to say.

00:09:30FacultyWhat is more likely?

00:09:33CandidateValvular. Considering his age, I would like to consider it, especially in India.

00:09:40FacultyWhy not a structurally normal heart with atherosclerotic ischemic heart disease? Is the disease common or uncommon at this age?

00:09:49CandidateAt this age, uncommon, sir.

00:09:51FacultyStill you have to entertain it? In India?

00:09:55CandidateIn India, without risk factors...

00:09:57FacultyHow badly will you entertain it?

00:09:58CandidateSorry, sir?

00:09:59FacultyHow early will you entertain atherosclerotic coronary artery disease?

00:10:03CandidateTen years earlier compared to...

00:10:07FacultySo 20 years, 25 years is too early?

00:10:10CandidateYes.

00:10:11FacultyBut still you cannot rule it out?

00:10:12CandidateYou cannot rule it out.

00:10:13FacultyWhat are the causes of premature atherosclerosis?

00:10:18CandidatePremature... familial hypercholesterolemia.

00:10:27FacultyWhat else? Coronary anomalies?

00:10:31CandidateCoronary anomalies, with an interarterial course.

00:10:39FacultySo your differential diagnosis is aortic valve stenosis?

00:10:45CandidateYes, sir.

00:10:46FacultyHCM?

00:10:47CandidateYes, sir.

00:10:48FacultyPremature atherosclerotic or non-atherosclerotic obstructive coronary disease? What else?

00:10:55CandidateSir, I would like to consider [unclear] and others. [inaudible] Pulmonary artery hypertension.

00:11:30FacultyPulmonary artery hypertension. That is right-sided. Pulmonary artery hypertension, then?

00:11:34CandidateThen you can get it in MS, because in mitral stenosis... it is pretty uncommon, but it can be there.

00:11:47FacultyDo you get angina in AR?

00:11:49Candidate[unclear], yes, in AR.

00:11:50FacultyDo you get it in other right-sided lesions?

00:11:53CandidateRight-sided lesions? PS. Yes, it is unlikely; a late manifestation.

00:12:00FacultyPS and Eisenmenger can have angina.

00:12:03CandidateYes sir.

00:12:03FacultySo right-sided lesions can also produce angina. So what is the difference between RV and LV angina in terms of pathophysiology?

00:12:12CandidatePathophysiology... because of back-pressure transmission.

00:12:15FacultyThis is very important for cardiologists to understand. Generally, what is the normal systolic pressure in the RV?

00:12:21Candidate25 systolic.

00:12:22FacultySo with about 25 systolic, the RV receives blood flow in both systole and diastole, unlike the LV. But in situations where the RV pressure increases, the RV also develops an LV type of coronary flow. It is not used to that; it is not made for that. That is where the problem happens. RV angina has a slightly different pathophysiology.

00:12:44One important thing: when all four are possible, that is, subaortic membrane, HOCM and valvular AS...

00:12:56CandidateRheumatic heart disease.

00:12:57FacultyRheumatic heart disease. So these are the four possibilities. When you are up against this, you have to go by the expected prevalence, the expected incidence, at that age. At that age, what will be your order of listing in a 35-year-old [unclear]?

00:13:10CandidateI would like to first consider hypertrophic cardiomyopathy. Next would be valvular heart disease.

00:13:23FacultyMore common than rheumatic [unclear]... generally in the fourth decade. So both may be equal, depending on where he is coming from. Both [unclear] with subaortic membrane. But you started off with subaortic membrane first.

00:13:37Why would hypertrophic cardiomyopathy produce regular, insidious-onset, exertional palpitations?

00:13:46CandidateBecause of ventricular arrhythmias, VT.

00:13:49FacultyRegular every time, insidious onset? A ventricular arrhythmia would be regular and insidious in onset? It can be sinus [unclear]. By your history, are these arrhythmic palpitations or volume-overload palpitations?

00:14:03CandidateIt looks like volume overload.

00:14:04FacultySo why would hypertrophic cardiomyopathy per se cause volume overload?

00:14:10CandidateBecause of associated MR.

00:14:35FacultySo palpitation in this case is [unclear]. Palpitation is awareness of the heartbeat: a change in rate, rhythm or force of contraction. In hypertrophy the force of contraction is more, and that can also cause palpitation.

00:14:49CandidateI would like to consider a combination of stenosis and regurgitation also in the list.

00:14:58FacultyGo with [unclear].

00:15:01CandidateMS, yes. If we consider a bicuspid aortic valve, there could be significant AR as well.

00:15:07FacultyHow is it going to be multivalvular? [unclear]

00:15:18CandidateIt is possible, considering this: a bicuspid aortic valve with AR, or MS and MR, is a possibility.

00:15:29FacultyOK, go to the physical examination. One small diversion: what is the receptor for angina?

00:15:35CandidateVanilloid receptor.

00:15:36FacultyWhat is this vanilloid receptor?

00:15:42CandidateThe question? I couldn't get it.

00:15:44FacultyThere was a Nobel Prize, no? Two years back, for vanilloid. Not for angina. But something to do with what rhythm? Circadian rhythm? Anyway, that was a diversion before you go to the physical examination.

00:15:59CandidateYes, physical examination. The patient was examined in the sitting and standing positions. He is moderately built and moderately nourished, conscious, cooperative and well oriented to time, place and person. Height is 171 cm, weight 71 kg, BMI 24.3 kg/m². The upper segment to lower segment ratio is 0.9. There are no peripheral signs of infective endocarditis, no peripheral signs of AR and no Marfanoid features.

00:16:34Coming to the vitals: pulse is 80 beats per minute, regular, jerky, with a rapidly rising, bifid character, non-collapsing; all peripheral pulses are well felt; there is no radio-radial or radio-femoral delay and no carotid bruit. BP in the right upper limb is 116/76 and in the left upper limb 112/70; bilateral lower limb systolic blood pressure is 122. Saturation is 98% on room air in all four limbs. There is no pallor, icterus, cyanosis, clubbing, lymphadenopathy or bilateral lower limb edema. The JVP is not seen in the sitting position; at 45 degrees it shows a normal waveform with normal respiratory variation, and the abdominojugular reflux is absent.

00:17:28On inspection and palpation, the chest is bilaterally symmetrical. The apex beat is seen and felt in the left fifth intercostal space in the mid-clavicular line; it is heaving in type, [unclear], and I could feel a double impulse. There is no palpable thrill.

00:17:51FacultyYou could feel a double impulse, meaning what? Systole, diastole?

00:17:55CandidateIn systole, sir.

00:17:59FacultyDouble apical impulse?

00:18:01CandidateDouble apical impulse. There is no thrill, no palpable S2, no parasternal heave, and no dilated veins or scars. However, there is a suprasternal pulsation. That's it.

00:18:14FacultyYou got a double apical impulse?

00:18:16CandidateIt is systolic.

00:18:18FacultyYou got a double apical impulse?

00:18:19CandidateYes, sir.

00:18:20FacultyAre you sure? What is a double apical impulse?

00:18:24CandidateSir, in HOCM we can get a double or triple apical impulse.

00:18:32FacultyWhy double?

00:18:35CandidateThe first one is because of LV contraction.

00:18:38FacultySecond one?

00:18:39CandidateThe second one is because of S4.

00:18:41Faculty[unclear]

00:18:46UnclearSir, you are right.

00:18:55FacultyWhat is the explanation for the second systolic impulse?

00:19:00CandidateSir, once ventricular contraction occurs, there will be SAM because of the Venturi effect. After that there will again be ventricular contraction. That produces the second impulse.

00:19:08FacultyThe apical impulse is the opposite of how the blood is ejected. Blood is ejected into the aorta, and the opposite movement happens at the apex. So when ejection is happening in two [unclear], possibly the apex is also moving twice in systole. Then what is the triple apical impulse?

00:19:26CandidateSir, the third one is because of atrial contraction. That is S4.

00:19:31FacultyS4. You can have a palpable S4 as well. So when you are describing a double apical impulse, you had better be clear whether it is one in systole and one in diastole, or both in systole.

00:19:43CandidateS4 and S1... S4 and the apical impulse. Yes, it is S4 and the apical impulse.

00:19:48FacultyThe triple ripple is very specific for obstructive cardiomyopathy. Very specific.

00:19:55CandidateComing to percussion: the left heart border corresponds to the apex. The right heart border is retrosternal. The left second intercostal space is resonant. Stomach tympany is on the left side, and hepatic dullness is at the right fifth intercostal space in the mid-clavicular line. Coming to auscultation: S1 is of normal intensity, S2 is narrowly split, and there is an S4.

00:20:24FacultyS4 is there?

00:20:26CandidateYes sir.

00:20:32Coming to murmurs: there is a harsh, medium-pitched ejection systolic murmur of grade 3/6, best heard at the left third to fourth intercostal space, which does not radiate to the carotids; it increases on standing and decreases on squatting. There is another high-pitched, blowing, mid-to-late systolic murmur of grade 2/6, best heard [site unclear], which is conducted to the axilla.

00:21:02FacultyWhat is late systolic? Early, pansystolic?

00:21:07CandidateYes sir, it is a late systolic murmur.

00:21:16FacultyNarrow split. You did not mention the intensity.

00:21:21CandidateIntensity? It is prominent.

00:21:25FacultyI mean, A2 is of normal intensity; you are interested in P2, no?

00:21:31CandidateP2 is normal.

00:21:33FacultyNormal. Only two murmurs we have?

00:21:42CandidateYes sir.

00:21:45FacultyOkay, complete. Other systems?

00:21:52CandidateRespiratory system: bilateral [unclear].

00:22:00FacultyDynamic auscultation: tell it clearly. Actually, your speech has no clarity. Dynamic auscultation is the window for diagnosis in this case, so you should tell it very clearly.

00:22:17CandidateThe murmur increases on standing and decreases on squatting. Since I could hear it predominantly in the standing position, I did not [unclear], but I made him squat, which decreased the intensity.

00:22:37FacultyDo Valsalva.

00:22:40CandidateI didn't, ma'am.

00:22:42FacultyWhat happened?

00:22:42CandidateIt increases the intensity of the murmur.

00:22:48FacultyWhich phase?

00:22:50CandidateStrain phase.

00:22:52FacultyStrain phase. Yes, the second phase.

00:23:08Yes. When you are doing the maneuver, it is called stand-squat-stand. Those three steps have to be done; only then are you adjusting the preload to the extent that you produce [unclear]. What will happen if you combine handgrip with it?

00:23:28CandidateI can [unclear]...

00:23:32UnclearSir, ask him to lie down and do passive leg raising.

00:23:36FacultyAnd you should also do it along with the patient: you should also stand.

00:23:55This is a common problem that every student has. What is the typical apical MR murmur in HOCM? I think you are all the MCQ generation, so I give you choices: is it a mid-to-late systolic murmur, [unclear], or a mid-systolic murmur?

00:24:13CandidateIt is a mid-to-late systolic murmur.

00:24:15FacultyYou have all done echo. When these questions are asked, think about what happens on echo. Does the MR come from the start, or does the LVOT obstruction start first and then the MR starts?

00:24:28CandidateOnly after the LVOT obstruction.

00:24:30FacultyAll of you have done echoes. So the sequence is that the LV ejects, obstructs and then ejects [unclear]. Then this cannot be a pansystolic murmur, and it cannot be a late systolic murmur; it has to be like a typical ejection systolic murmur, but not a classical one. Having said that, if there is a structural cause of MR, since some patients have an abnormal mitral valve apparatus or primary valvular MR, then it can be pansystolic. So both are possible. The most common, classical one is mid-systolic.

00:25:10CandidateMid-systolic.

00:25:16FacultyThe other one you said is ejection systolic.

00:25:18CandidateYes sir.

00:25:19FacultyBut the obstruction occurs a little later. Do you think it is mid-systolic or ejection?

00:25:28CandidateLate systolic; mid or late systolic.

00:25:33FacultyI am talking about the murmur, the ejection systolic murmur.

00:25:39What sir is trying to say is: with a bicuspid aortic valve, the murmur starts from the click. This is not exactly like that. It starts slightly delayed; that is why he is asking. But still it will [unclear], and there is nothing like late systolic; it is meant to be [unclear] systolic.

00:26:03That is the effect, right? Not in the [unclear]. You can get a murmur during the early part of systole because the LV ejects very fast; 80% is ejected early, and even with a normal valve that can cause a little murmur.

00:26:25HOCM is a very commonly kept case in the exam. Most of you rely on [unclear] for differentiation, and we all know how good [unclear] are. What are the other ways to differentiate fixed obstruction from HOCM? Many of these points you have not enumerated; that is what I am asking you today.

00:26:46CandidateWe will start with the pulse, sir. In the case of AS, the pulse will be [unclear].

00:26:50FacultyYou described a very good rapid [unclear].

00:26:52CandidateYes. It will be [unclear] pulse in AS, sir.

00:26:57FacultyOkay.

00:26:58CandidateNext, in AS the murmur will be noted in the right second intercostal space; generally in HOCM it is [unclear] in the aortic area. [inaudible] The triple impulse is characteristic of HOCM, sir. [inaudible]

00:27:46[inaudible] ... would be characteristic, in NYHA class II with normal LV function.

00:27:57FacultyWhat are the close differential diagnoses? One question. [inaudible] The presentation is adult heart disease only. It is because the genetic... [inaudible]

00:30:01So, let's continue. LA pressure is not related to [unclear]. What is the mechanism of S4?

00:30:13CandidateS4 is because of LA contraction.

00:30:15FacultyIt will be? It does not [unclear].

00:30:19CandidateBecause of [unclear]. [inaudible]

00:31:20Faculty[unclear] The basic approach is that there is LV outflow obstruction, and the discussion is about the level: valvar, subvalvar or supravalvar. Supravalvar is out of the question here. Between valvar AS and HCM, there are strong pointers for HCM here, like the double impulse and the typical dynamic changes in the murmur, strongly in favour. There is not much differential diagnosis. So what investigation do you want to do? You want to see the ECG?

00:33:18Candidate[inaudible] ... enlargement [inaudible] to help the diagnosis. There is LA enlargement, and LVH with strain. [unclear]

00:34:16FacultyWhat are the other ECG presentations? Other ECG features of HCM?

00:34:26CandidateIt can present with [unclear] VPCs. Pseudo-infarct pattern.

00:34:35FacultyPseudo-infarct. Apical HCM: how does it present?

00:34:39CandidateDeep, symmetrical T-wave inversions in the lateral precordial leads.

00:34:45FacultyThe high-risk factors: how will you assess the risk based on the clinical presentation and ECG?

00:34:58CandidateHistory of syncope [unclear]; [unclear] history of sudden [inaudible].

00:35:38This is a chest X-ray [unclear].

00:35:46FacultyHow does the [unclear]?

00:35:50CandidateThe left heart border is [unclear]. The right heart border is normal. There is no RA enlargement. [unclear], which is normal.

00:36:13FacultyIt may not be helpful, actually. The X-ray will not give many diagnostic clues, except when a calcific aortic valve is there. Otherwise it is usually not [unclear] heart. Pulmonary blood flow will not be affected, and the aorta will not be very prominent.

00:36:54It goes with your diagnosis. A little cephalization is there. If cephalization is there, what is the LA mean pressure? [inaudible]

00:37:21Echo: can you show the echo, please?

00:37:29CandidateThis is a transthoracic grayscale image showing significant LVH involving both the interventricular septum and [unclear]; the LA looks dilated. There is [unclear]; this is systolic anterior motion of the mitral leaflet. [unclear] there is no subaortic membrane.

00:38:03FacultyYes, M-mode is there. Anything more than that? Systolic anterior motion of just the mitral leaflet? Go back to the previous one. You did not describe the pattern of hypertrophy. How is it different from the usual hypertrophy that you see in hypertensive LVH? What are you seeing here? What is the special appearance described in the diagnosis that you are considering?

00:38:35CandidateSpeckled appearance.

00:38:37FacultyOkay. Then what is happening to the chordae in the LVOT? Along with the leaflet, they are also being drawn forward.

00:38:50CandidateYes sir. [unclear] motion of the chordae in the LVOT.

00:38:58FacultyOkay. [unclear] motion of the chordae. [unclear]

00:39:43CandidateThis is showing septal hypertrophy as well as posterior wall hypertrophy. There is systolic anterior motion of the mitral leaflet. [inaudible]

00:40:21FacultyAn important thing to watch [inaudible] ... scallop, perhaps [unclear].

00:40:41CandidateThis is a short-axis view at the papillary muscle level; there is hypertrophy of the papillary muscles as well. [inaudible] And there is [unclear] doming of the AML. It looks dilated.

00:41:32FacultyYou describe it as doming of the AML? Why did you use the word doming? Which one is it? I don't think anything is doming. This is not a situation where you would use that term. It is not doming. [unclear] Systolic anterior motion is seen here.

00:41:57CandidateYes, sir.

00:42:01FacultyComment on the echogenicity of the IVS.

00:42:05CandidateThe IVS looks hypertrophic.

00:42:07FacultyHypertrophic. Echogenic?

00:42:10CandidateHyperechogenic.

00:42:11FacultyHyperechogenic. So what would be the [inaudible]? If you take an M-mode across the aortic valve, what will you find? In this case, what do you expect? [inaudible]

00:43:12What are the various morphological phenotypes of HCM? In other words, is the hypertrophy uniform like this in all cases, or different?

00:43:33CandidateWe can get apical HCM.

00:43:35FacultyApical is one variant. What else?

00:43:37CandidateThen we can get mid-[unclear].

00:43:48FacultySo you should be able to do the phenotyping on a good echo too, right? Comment on the MR.

00:43:56CandidateThere is significant [inaudible]. Sorry, sir?

00:44:30FacultyNormally it is with the mitral valve apparatus; that is what sir is saying. It is a part of the [inaudible].

00:44:45CandidateThis is a [inaudible] showing [inaudible] across [inaudible].

00:46:24Apical, the apical HCM variant.

00:46:27FacultyIs gradient a... If not apical HCM per se, what has to be there along with apical HCM to make it high risk?

00:46:34CandidateSorry, sir? Apical aneurysm.

00:46:42FacultyApical aneurysm. What else? Look at the HCM SCD score: what are the other echocardiographic parameters included? Is gradient a high-risk feature?

00:46:52CandidateNo, sir.

00:46:54FacultyYes, no or maybe? What is the answer?

00:46:58CandidateNo, sir.

00:46:59FacultyNo? The answer is possibly not a categorical no. Some series have shown the gradient to be a high-risk feature; some say it is not. So it is possibly a maybe. We don't know exactly whether...

00:47:13There is no linear relation, but very high gradients definitely should be a risk factor. It may not be a big differentiator between, say, 30 and 60, but if it is extremely high, it is a high-risk feature.

00:47:34And one more high-risk feature which we are not looking at most of the time: LA [unclear]. And LV dysfunction, obviously. If there is obvious LV dysfunction, that patient is at very high risk.

00:47:48CandidateYes, sir.

00:47:53FacultyOn the electrocardiogram, I think a colleague here has done some analysis identifying a high-risk feature. You can just tell us that, for the benefit of others.

00:48:13So actually we used an SAECG algorithm. Just as an SAECG works, if there is more fluctuation in the last 60 milliseconds, like the late potentials in post-infarction VT when we do an ablation, the same thing has been validated. If the last 60 milliseconds are taken and blown up by ultra-high-frequency ECG analysis, that is a strong predictor, which we found in our study.

00:48:39The signal-averaged ECG.

00:48:41Signal-averaged. The last 60 milliseconds.

00:48:43Usually the QRS will be a little wider in those situations. Will the QRS be a little wide in that situation? Is the QRS width prolonged?

00:48:53No, not the QRS. Even with a normal QRS width of less than 120 milliseconds, the fluctuations in the last 60 cannot be seen on the normal ECG. Ultra-high frequency picks them up, and they are supposed to be the late predictors of [unclear] which can lead to [unclear].

00:49:11What are these images?

00:49:16CandidateThis echo is showing LA strain: the reservoir strain is 20 percent, the conduit 12 and the contractile 6 percent.

00:49:41FacultyWhy is this done? What is the answer?

00:49:48CandidateFor any diastolic dysfunction; to quantify the diastolic dysfunction.

00:50:00FacultyHas an MRI been done in this case?

00:50:01CandidateNot now.

00:50:02FacultyWhy should an MRI be done? Will you do [unclear]?

00:50:06CandidateWe will do it, sir. It is first to diagnose and to prognosticate, sir.

00:50:11FacultyBut how do you prognosticate on MRI?

00:50:14CandidateFirst, see if there is any LGE: the scar burden of the myocardium. If the scar burden is more than 15%, it is high risk. If there is an LV apical aneurysm, that is a high-risk feature. LVEF less than 50% is again a high-risk feature. More than that, interventricular septum more than 30 mm.

00:50:36FacultyYes, but all this information you will get from echo also.

00:50:39CandidateYes.

00:50:41FacultyAnything beyond that, beyond LGE? The phenotype can be better defined; morphological phenotyping is more precise on MRI. And [unclear] whether it is structurally abnormal or not is better seen on MRI. And scar burden.

00:51:07CandidateYes.

00:51:09FacultyHow will you manage this case?

00:51:13CandidateThe patient is [inaudible]. Relieve his symptoms by giving [inaudible]. I advise him to avoid any dehydration, to increase the preload. The purpose is to decrease the heart rate as well as the preload [as heard], because of the [unclear]. So the murmur intensity comes down and symptomatically he feels better.

00:51:44FacultyYes. With a very high LVOT gradient, do you have any interventional or surgical plan for this?

00:51:51CandidateIf the patient is symptomatic in spite of beta-blockers, then we can go for septal reduction therapies.

00:51:58FacultyOkay. [unclear] By the echo. It is useful. Tell us something about septal ablation. Which is better, and what are the outcomes?

00:52:25CandidateSurgical myectomy is better than alcohol septal ablation. If the patient is unable to undergo surgery because of high mortality, then the patient can undergo alcohol septal ablation, but the patient has a high risk of developing CHB.

00:52:46FacultyWhat is the risk? You are talking like a [unclear], not like a cardiologist.

00:52:50CandidateThere will be around a 10% risk.

00:52:52FacultyWhich era are you talking about? That was when we were injecting, say, 3 ml or 4 ml of alcohol. Now the risk has come down; it is not 5 to 10%. Look at the contemporary series: around 2%. What are the ways to choose between the two for a patient? You have to choose for the patient. One you said: [unclear]. What are the other things that help you choose?

00:53:21Is there associated mitral valve disease, significant primary MR? Then, is there a mid-ventricular [unclear] obstruction?

00:53:32CandidateI would like to consider that.

00:53:34FacultyWith mid-cavity obstruction, the outcome of alcohol ablation is not so good, though there are some cases [unclear]. Then the other important thing: anything in the ECG? Obviously there are anatomical [unclear] issues: if the septal artery is not of a good size, then also you cannot do it. But apart from that, is there anything on the ECG that will help you decide? How do you choose with pre-existing RBBB?

00:54:08CandidateThe patient has pre-existing RBBB...

00:54:11FacultySimply, [unclear] RBBB develops after [unclear]. A patient with RBBB should not have this done, and the opposite applies for surgery [unclear].

00:54:21Do you do a coronary angiogram before deciding on surgical myectomy?

00:54:28CandidateCoronary angiogram? For surgical myectomy, we would like to do a coronary angiogram.

00:54:44FacultyWhat is the mechanism of angina in HCM?

00:54:50CandidateCapillary density will be decreased in HCM, sir, because it is inappropriate [unclear]. Then there will be myocardial bridging. [inaudible]

13

Day 2 · 18-Oct-2026 · 09:49 hrs · 56 min

Dextrocardia and Cyanotic Congenital Heart Disease

  • Dextrocardia
  • Cyanotic congenital heart disease
  • Double-outlet right ventricle
  • Segmental approach
  • Squatting physiology
  • Newborn pulse-oximetry screening
  • Fontan and single-ventricle pathway
  • Tetralogy of Fallot after repair

A candidate presented the short case of a 13-year-old girl with situs solitus dextrocardia and cyanotic congenital heart disease (saturation 58%, grade 3 clubbing, a grade 5/6 systolic murmur at the right second intercostal space), in whom heart disease was suspected at 12 days of life and surgery was declined at two and a half years. The faculty used the case to discuss newborn pulse-oximetry screening, why a child may be declared inoperable, the physiology of squatting, the significance of a loud murmur with severe cyanosis, and the differential diagnosis of lesions associated with dextrocardia. The chest X-ray, ECG and echocardiogram were reviewed using a segmental approach, and the discussion settled on DORV with VSD and pulmonary stenosis. It then covered VSD routability, the single-ventricle pathway and Fontan timing, root-translocation operations, and late problems and PVR indications after tetralogy repair.

Case
13-year-old girl; heart disease suspected at 12 days of life; at 2½ years told she had cyanosis, a right-sided heart and an inoperable condition; dyspnea on routine activities; walking delayed beyond 2 years of age; no cyanotic spells; premenarchal.
Diagnosis discussed
Situs solitus, dextrocardia, double-outlet right ventricle with VSD and pulmonary stenosis (AV discordance was considered on echo but judged doubtful; the echo report described a doubly committed VSD).

Teaching points

  1. Summarise a congenital heart disease history as a timeline: when heart disease was first suspected, when the child was evaluated by a cardiologist, and what the family was told (here: suspected at 12 days, inoperable and heart on the right side at 2½ years).
  2. Pulse-oximetry screening of newborns is now recommended by the IAP and the national government and is done by neonatologists and PHCs; the hyperoxia test is no longer considered useful. Upper- and lower-limb oximetry shows differential cyanosis in duct-dependent lower-body circulation.
  3. A child may be declared inoperable because of Eisenmenger physiology, unsuitable anatomy (absent or non-confluent pulmonary arteries where unifocalisation is not possible), or unsuitable physiology (pulmonary flow too high for banding at that age, or established ventricular dysfunction).
  4. Squatting raises systemic vascular resistance by kinking the femoral arteries, reducing the right-to-left shunt, and reduces the return of highly desaturated blood from the lower limbs and splanchnic bed. Older children may show squatting equivalents rather than squatting.
  5. A very loud murmur with severe cyanosis means there is good flow across the stenotic area. If such a patient is blue, think of complex congenital heart disease, or a murmur arising elsewhere (AV-valve regurgitation, restrictive VSD), rather than simple tetralogy.
  6. Report echocardiography by the segmental approach: situs, atrial identity (trace the IVC to the right atrium), AV connection (concordance or discordance), ventricular morphology, great arteries, then VSD location. In DORV, VSD position (subaortic, subpulmonary, doubly committed or non-committed) determines routability and the surgical plan.
  7. A routable VSD allows a biventricular, tetralogy-like repair. A non-routable VSD means the single-ventricle pathway, with a pre-Fontan catheterisation for PA anatomy, PA pressures, LVEDP and collaterals. 3D-printed models from CT or MRI are increasingly used to judge routability.
  8. In a 13-year-old, a primary Fontan is preferred over Glenn-then-Fontan: after about 6-7 years of age only about 30% of venous return comes from the upper body, so a Glenn would improve saturation little.
  9. Candidates should know the names and principles of the Nikaido, REV and Rastelli operations.
  10. After tetralogy repair, watch for PR-driven RV dysfunction and arrhythmia or sudden death, residual lesions, and aortopathy. Per ACC 2020, asymptomatic moderate or greater PR is a class 2 indication for PVR when two criteria are met (RVEDV more than twice LVEDV, RVESV index above 80, reduced RVEF or LVEF, or declining exercise tolerance).
Edited transcript 279 paragraphs · 5,538 words

00:01:35CandidateThere is no [unclear] of the child. Although the child does not exert much, she has dyspnea during all her routine activities. There is no history of recurrent respiratory infections; no fever, headache, vertigo or blurring of vision; no history of seizures or [unclear]. There is no history of a suck-rest-suck cycle in infancy, and no history of any paroxysmal palpitations.

00:02:18The developmental milestones were achieved normally except walking, which happened only after two years of age. Family history: there is no family history of any heart disease. Personal history: appetite, bowel and bladder habits and sleep are normal. She has not yet attained menarche.

00:02:43FacultyYes, [unclear]. Are you in adult cardiology or...?

00:02:50CandidateAdult.

00:02:57FacultySo how will you get [unclear], or know? Do you always do it in the [unclear]? Whether it is closing or not?

00:03:28CandidateAbsence of a continuous murmur.

00:03:41FacultyAbsence of a continuous murmur. In [unclear], it is very difficult to hear the continuous murmur if it is a duct-dependent circulation.

00:03:50CandidateSir, I think [inaudible].

00:04:00FacultyFor this you need two oximeters, one on the hand and one on the foot. What happens? What happens when the PDA starts to close? What does the PDA do in the newborn, soon after birth?

00:04:17CandidateThe PDA helps the circulation of blood to the lower part of the body.

00:04:20FacultySo what will happen?

00:04:22CandidateLower-limb saturations will...

00:04:24FacultySo it will be like differential cyanosis: the lower-limb saturation will be less and the upper-limb saturation will be normal. As the PDA starts closing, the lower-limb saturation increases and comes up. Whether that is favourable or not, we don't know, but it is one of the methods to find out.

00:04:43So, in continuation of what sir is asking: what is the current protocol for screening a newborn? All newborns are screened in India. What is the current protocol, and what is being done? What is a pass, and what is a fail, in that protocol? All of you read about the useless hyperoxia test and all that; those were not useful. But currently the IAP, and the national government too, recommend pulse-oximetry screening. So what is the current recommendation? Read about it; that is very important. All neonatologists are doing it now, and all PHCs have also started doing it. So at least we should know, because some of these babies will be coming to you for echo screening.

00:05:25Okay. Summarize. The second thing is, of course, when you assess heart failure in a newborn... not in the newborn, sorry, in the child, in infants, which classification will you use? Is that right?

00:05:40CandidateRoss classification.

00:05:43FacultyRoss score and Ross classification: both are there. The Ross classification is like the NYHA classification, and the Ross score grades heart rate and the other parameters by age into different scores. That is used in heart failure studies in children. Okay. Anyway, you are in adult cardiology, so I won't press further. So, again, summarize your history.

00:06:06CandidateYes sir. A 13-year-old female child with a history of cyanosis noted since two and a half years of age, without any cyanotic spells. I would like to think of...

00:06:18FacultySummarize first: what will be a full summary of this case? What has happened from birth? At what age did somebody pick up or suspect a heart disease?

00:06:32CandidateAt 12 days of life.

00:06:34FacultyThat is very important. At 12 days of life, how would the doctor have picked it up? He was possibly a pediatrician or a general doctor sitting somewhere in the periphery. So by what could he have picked it up?

00:06:48CandidateBased on auscultation.

00:06:49FacultyEither a murmur or cyanosis. These are the two possibilities. So which is more likely?

00:06:57CandidateCyanosis is more likely.

00:06:58FacultyCyanosis is more likely in cyanotic congenital heart disease. So that means visible cyanosis started at 12 days of life.

00:07:05CandidateHowever, the parents did not notice the cyanosis, and they were told about it when they first consulted a cardiologist at two and a half years of age. The cyanosis is non-progressive and not associated with any cyanotic spells. She is totally asymptomatic. Because of the cardiac condition, the parents restricted her [unclear] activities.

00:07:29FacultySo try to summarize in one sentence or so, so that everything falls into place. For example: a 13-year-old female child who was first suspected of heart disease on the 12th day of life; at 2½ years of age she again went for cardiac evaluation, was told she had cyanosis and that the condition was not operable, and was advised to continue medical management. It is not operable?

00:07:52CandidateYes.

00:07:54FacultyWhat are the possibilities, when somebody is told at, say, 2½ years of age that it is not operable?

00:07:59CandidateShe was also told that the heart is on the right side.

00:08:02FacultyRight side, okay. This should all come in the summary. Then what are the possibilities now?

00:08:08CandidateThe possibilities could be complex cyanotic congenital heart disease: TGA, VSD-PS or...

00:08:20FacultyNo. Which VSD-PS will you say cannot be operated, one that was diagnosed or suspected at 12 days of life? Keep it simple. One: is it a totally correctable lesion? Or is it an acyanotic congenital heart disease that has become Eisenmenger? That is one possibility. Or a cyanotic congenital heart disease that has become Eisenmenger? That is the other possibility. The third possibility is that the anatomy or the physiology is not suitable for single-ventricle correction or palliation. This is how you have to think.

00:09:00So, in that order, what are the possibilities? Can this be an acyanotic congenital heart disease that has become Eisenmenger?

00:09:06CandidateYes, sir.

00:09:07FacultyThat is the most common thing we encounter in adults. But can it be a possibility here?

00:09:11CandidateIt can be, sir, but there is no...

00:09:11FacultyIt cannot be, no? Somebody picked it up at 12 days of life, and becoming visibly cyanosed by two and a half years is uncommon in VSD, PDA or ASD. That is not common, so that is almost out. Then can this be a cyanotic congenital heart disease that has become Eisenmenger, meaning a TGA or a truncus or something like that, which has now become Eisenmenger?

00:09:36CandidateUnlikely, sir, because the child has survived till 13 years.

00:09:39FacultyWell, 13-year survival is not such a rare thing; some of them may survive till 13. That could be a possibility, but lower down. So what are the anatomical constraints to doing a single-ventricle palliation or a correction in congenital heart disease, where we will say no, the patient cannot be operated? [inaudible] Those are corrected nowadays.

00:10:07The most important thing is the pulmonary arteries: no pulmonary arteries, non-confluent PAs, nothing can be done about the arborisation, unifocalisation not possible. Those are the patients in whom they say no surgery is possible. What are the physiological reasons? In somebody on the single-ventricle pathway, what are the physiological or hemodynamic reasons to say inoperable? They have gone into Eisenmenger physiology. Or, even with a [unclear] physiology, if the flow is much more, you cannot do a band at two and a half years of age. Ventricular function also matters: as ma'am pointed out, importantly, significant ventricular dysfunction may already have set in.

00:10:58So what are the diseases that are more common in patients with dextrocardia?

00:11:03CandidateDextrocardia: [unclear]. VSD can be there.

00:11:13FacultySo [unclear] dextrocardia versus situs solitus dextrocardia: how are things different? In [unclear] dextrocardia, the diseases will mirror what we get here; that is, in situs inversus dextrocardia the diseases are nearly the same. Whereas in situs solitus dextrocardia, which diseases become more common?

00:11:41CandidateccTGA, then [unclear], and others. TOF can also be there, sir, tetralogy of Fallot. Complex lesions. VSD-PS also.

00:12:00FacultyYou didn't discuss squatting?

00:12:03CandidateThere was no episode of squatting, sir.

00:12:05FacultyA 13-year-old may not actually squat, so you have to look for squatting equivalents. What are the squatting equivalents?

00:12:10CandidateSquatting equivalents are crossing the legs, sir, lying down, and sitting with the legs [unclear].

00:12:19FacultySo how does squatting relieve cyanosis?

00:12:22CandidateWith squatting, first, kinking of the femoral arteries increases the systemic vascular resistance, which reduces the right-to-left shunting. Along with that, there is also reduced preload.

00:12:36FacultySo what preload?

00:12:37CandidateTo the right side.

00:12:39FacultyAny reduction in preload may actually be harmful for some of these patients. You clarify for squatting: which preload? Which part of the preload reduces? The venous return to the heart from which part of the body?

00:12:54CandidatePardon me?

00:12:55FacultyWhich segment? You said the venous return decreases.

00:13:00CandidateDecreases.

00:13:00FacultyFrom which part of the body?

00:13:02CandidateFrom the lower part of the body to the...

00:13:06FacultySo does squatting reduce venous return or increase it?

00:13:09CandidateReduces.

00:13:10FacultyBut in HOCM you say that squatting increases venous return and the murmur decreases. Here you are saying squatting reduces it. So you have to clarify which part of the venous return is reduced after the trapping of blood. In which parts of the body is the AV oxygen difference much greater? Which organ extracts more oxygen?

00:13:36CandidateThe brain extracts more oxygen. [unclear] the kidneys.

00:13:44FacultySo basically, it is mainly the splanchnic and lower-limb blood flow that is reduced; that blood is more deoxygenated. So it is the return of highly deoxygenated blood to the heart that is reduced.

00:14:07We are possibly dealing with dextrocardia with either pulmonary atresia or a truly complex congenital heart disease. Can this be Ebstein?

00:14:15CandidateEbstein? No sir, there is no history of heart failure in infancy or of neonatal cyanosis.

00:14:23FacultySo generally, what is the natural history of somebody becoming cyanotic with Ebstein after 12 days of life? What is the natural history of neonatal Ebstein?

00:14:33CandidateNeonatal Ebstein? They will go into heart failure, sir.

00:14:35FacultyThey do terribly. Generally the outcomes are very bad, even with surgery. Those are the really bad Ebsteins, so that is unlikely. Ebstein presenting within two and a half years is also not common. And generally Sathya Sai would have operated on an Ebstein by that time, with or without a Glenn, if that were the diagnosis.

00:15:06CandidateGoing to the general physical examination, sir. The child is conscious and cooperative. Height is 141 cm and weight is 26 kg. There is central cyanosis, with a saturation of 58% in all four limbs. There is grade 3 clubbing.

00:15:22Faculty58?

00:15:23Candidate58%. Grade 3 clubbing is noted in both upper and lower limbs. There is also conjunctival suffusion. No pallor, no lymphadenopathy and no edema. The pulse rate is 100 beats per minute, regular, of normal volume, with no radio-radial or radio-femoral delay. Blood pressure in the right upper limb is 88/56 mmHg and in the left 90/60 mmHg; the lower-limb systolic pressure is 100 mmHg. The JVP is not visible in the sitting position; lying at 30 degrees, it is 2 cm above the sternal angle, with normal waveforms, normal respiratory variation and a negative hepatojugular reflux. There are no signs suggestive of a congenital syndromic disorder, and no dysmorphic facies. Moving on to the cardiovascular system examination: inspection and palpation combined.

00:16:26FacultyOnce again, let me repeat for those who have joined: JVP, blood pressure and pulse are all part of the cardiovascular examination. So you don't have to say 'cardiovascular examination' again at this point.

00:16:40UnclearSay cardiac examination, sir?

00:16:41FacultyThe information we get from these is part of the cardiovascular examination. They are asking what to say: should we say cardiac examination? Yes, you have to say cardiac examination.

00:16:52CandidateCardiac examination, inspection and palpation: the chest is bilaterally symmetrical. The apex is felt in the right fifth intercostal space, half an inch medial to the mid-clavicular line, with lateral retraction. There is a systolic thrill in the right second intercostal space, which is also felt slightly in the left second intercostal space. There is a right parasternal heave. There are no other pulsations and no sinuses seen.

00:17:22FacultyWhat grade of parasternal heave?

00:17:25CandidateGrade 1 only, sir.

00:17:56[inaudible] ... with mid-to-late systolic peaking, heard in the right second intercostal space and radiating to the back in the interscapular area. No S3, no S4, no other murmurs.

00:18:13FacultyNo respiratory variation of the murmur?

00:18:15CandidateNo respiratory variation of the murmur. It is a grade 5/6 murmur, sir.

00:18:29FacultyThere is only one murmur?

00:18:30CandidateYes sir, there is only one murmur. It also radiates to the interscapular area at the back, sir.

00:18:43Other systems: respiratory system, bilateral normal vesicular breath sounds; per abdomen, soft, non-tender, no organomegaly; central nervous system, no focal neurological deficits.

00:18:57FacultySitus?

00:18:58CandidateSolitus.

00:19:03FacultyDiagnosis?

00:19:05CandidateSitus solitus, dextrocardia, cyanotic congenital heart disease with reduced pulmonary blood flow. I would like to think of two conditions, sir: VSD with pulmonary stenosis, or DORV, VSD with pulmonary stenosis.

00:19:17FacultyIt is better to say VSD-PS physiology.

00:19:20CandidateVSD-PS physiology.

00:19:20FacultyOr tetralogy-like physiology. Then what are the differential diagnoses you want to give under that?

00:19:24CandidateYes, sir. VSD-PS physiology: within that, VSD with PS, and DORV, VSD with PS, sir.

00:19:34FacultySo, DORV-VSD-PS.

00:19:37CandidateAnd VSD-PS, sir.

00:19:39FacultyAnd VSD-PS. Not ccTGA? You are not considering ccTGA?

00:19:46CandidateI could feel an RV heave, and there is no loud sound in the second intercostal space.

00:19:56FacultySo what is the characteristic finding in this case overall? It is a very loud murmur. What is the saturation?

00:20:04Candidate58%.

00:20:05FacultySo what is the problem?

00:20:06CandidateSir, the murmur is out of proportion to the cyanosis.

00:20:11FacultySo the murmur is out of proportion to the saturation. In what situations does that happen, and why?

00:20:17CandidateSir, if there is a shunt lesion without any infundibular obstruction, with only valvular stenosis, then that can cause this high-grade murmur with a much lower saturation.

00:20:34FacultySo primarily, what is the problem? This point is made repeatedly because there is a very loud murmur across a stenotic area. What is happening? The blood flow is very good. If the blood flow were very much reduced, you could not get a loud murmur. So the blood flow is good, but at the same time the patient is blue. Why is the patient blue? The blood flow is very good in a VSD-PS physiology.

00:21:01One other reason for such a finding is that the murmur is arising elsewhere: an MR murmur or AV-valve regurgitation murmur, or at the VSD itself, as can happen with a restrictive VSD, for example DORV with a restrictive VSD, which is a very rare condition. If the murmur is at the RVOT and the flow is very good, it can be pink tetralogy. But if the patient is blue, what does that mean? It is very likely that we are dealing with some complex congenital heart disease.

00:21:35So if it is DORV-VSD-PS, why did Sathya Sai refuse it? Was a cath done at that time before they declined surgery?

00:21:43CandidateThere is no history of any intervention. No cath or anything was done.

00:21:51FacultySo can this still be ccTGA, some form of ccTGA, even though you don't find the classical finding you mentioned? How sensitive or specific is that finding? [inaudible]

00:22:22They could have said that surgery is not needed right now, and the family could have interpreted that as surgery never being possible.

00:22:30CandidateSir, they said that surgery cannot be done. According to the mother, they said surgery cannot be done, so she should continue whatever medical management is possible.

00:22:42FacultyAt the age of two and a half years, or later?

00:22:44CandidateAt the age of two and a half years, when she first consulted a cardiologist.

00:22:49FacultySo can this be TGA-VSD-PS? She is very blue, relatively very cyanosed, and cyanosis was picked up at 12 days of life. But what is the problem with TGA having a loud murmur?

00:23:07CandidateTGA may also have a loud murmur, but the problem is that the PA is posterior in TGA, so the murmur is never so loud.

00:23:16FacultySo here, where is the site of maximal intensity of the murmur?

00:23:21CandidateSir, almost right...

00:23:23FacultyThe heart is on the right side?

00:23:25CandidateThe heart is on the right side. It is in the right second intercostal space, sir.

00:23:30FacultyIt is a little higher up here: the right second intercostal space, even extending into the suprasternal area. So you are keeping only DORV-VSD-PS and tetralogy as possibilities? VSD-PS is tetralogy only. So, situs solitus dextrocardia with tetralogy, or situs solitus dextrocardia with DORV-VSD-PS? In my opinion, you should also keep ccTGA-VSD-PS and TGA-VSD-PS as differential diagnoses lower down the order. Or can this be a single ventricle with PS, some form of single ventricle?

00:24:02CandidateSingle ventricle with PS? Yes sir, with RV dominance, of RV type...

00:24:10FacultyBut again, with single ventricle, dominance plays a role: if there is LV dominance you can put your money on it, but if it is RV-dominant or indeterminate you cannot be very sure, in single ventricle or complex congenital heart disease. So that could also be one of your differentials, since it is complex congenital heart disease and surgery has been refused.

00:24:35CandidateYes, sir.

00:25:12FacultyIn what way does the X-ray help?

00:25:15CandidateThe X-ray will help to determine the situs. This is a chest X-ray, PA view. The gas shadow is on the right, but on percussion the stomach tympany was on the left. The bronchus [unclear]; I am not able to see it.

00:26:07FacultyAre they the same, or is one opposite? What is happening? The bronchial situs: is it solitus, inversus or ambiguous?

00:26:18CandidateIt looks like...

00:26:19FacultyHow do you say it? The bronchial situs is...?

00:26:23CandidateIt appears to be solitus.

00:26:32FacultySolitus, he says. What do you say?

00:26:37UnclearThe right side is straighter.

00:26:40FacultyAfter the bifurcation, the right side... which is longer, normally? Normally the [unclear] one is longer; the ratio is usually more than 2:1, left to right.

00:27:18Yes, so?

00:27:20CandidateSir, here... coming to the... there is no pulmonary [unclear] seen. There is an RV-type apex.

00:27:35FacultySo what does the lung vasculature look like? Is pulmonary blood flow decreased?

00:27:45CandidateNo sir, it looks adequate.

00:27:47FacultyWhat are the shadows that you are seeing in the lower zone, the left lower zone? What do these shadows indicate? There are some shadows here also. Suppose you were in your MD and saw such an X-ray, with such a pattern everywhere: what would you diagnose?

00:28:18CandidateMiliary tuberculosis or something like that.

00:28:20FacultySo what is this pattern?

00:28:22CandidateReticulonodular pattern.

00:28:23FacultySo what does it indicate in cyanotic congenital heart disease?

00:28:26CandidateThe presence of collaterals.

00:28:28FacultyThis particular area may be supplied by collaterals. But having said that, tuberculosis is far more common in our country. Be careful.

00:28:42CandidateThis is a 12-lead ECG, normal standardisation, rate around 80 beats per minute. This is a corrected ECG, sir, because there is no global negativity in lead I; all the P waves and QRS complexes are upright.

00:29:11FacultyCorrected. [unclear] Upright. Corrected.

00:29:28CandidateaVR is negative and aVL is positive.

00:29:30FacultyWhat happens to the P wave in lead I in situs inversus?

00:29:36CandidateThe P wave in lead I will be negative. Here aVR is negative and aVL is positive, and there are T inversions in V1 to V3, suggesting right ventricular strain or a pressure-overloaded condition, with tall R waves in V2.

00:30:15FacultyOr is it a nearly similar pattern across V1 to V6?

00:30:20CandidateAll have the same pattern.

00:30:21FacultyIs it corrected, just taken on the right side, or is it the...?

00:30:26CandidateI think it is on the right side, but the R wave is still not progressing till V6; a deep S wave persists.

00:30:38FacultyYes, this area is better. What is this one? Similar, right?

00:30:55CandidateSame.

00:31:07FacultySo you see [unclear] here. This is different.

00:31:15CandidateReduction in the R wave in the precordial leads, sir.

00:31:18FacultyAlmost. This, I think, is before we [inaudible].

00:31:24CandidateRight-sided leads.

00:31:25FacultyThese are right-sided leads. Here V1 becomes V2 and V2 becomes V1.

00:31:47Let us not complicate it further. Nowadays we have stopped looking into the details of what happens in dextrocardia with DORV, AVSD and so on. Simply look at this: are there two ventricles of good size or not? These are the right-sided leads, V1 to V6. Are there two good-sized ventricles or not?

00:32:08CandidateNo sir, only the right is predominant. The R is not...

00:32:22FacultyIt is predominantly R. Otherwise, if you look at it, it is like a tetralogy ECG: a tall R, then early transition, and so on.

00:32:32CandidateCorrect.

00:32:33FacultySo possibly we are not dealing with a single ventricle. We are likely dealing with two ventricles. [inaudible] Lateral leads. [inaudible] That doesn't happen in simple tetralogy.

00:33:14CandidateYes, sir.

00:33:22FacultyAnd then the loop: is it a clockwise or a counterclockwise loop?

00:33:26CandidateThis is counterclockwise. aVL: a small Q is there. [unclear]

00:33:42FacultyCounterclockwise loop. So if this is the case, can this be simple PS with intact septum, with an ASD shunting right to left? You are getting T-wave inversions and a pressure-loaded ventricle right up to the apex. What is against that? You are getting such a loud murmur; that would also go in favour. What are the things against that diagnosis?

00:34:15So, PS with intact septum: suppose you think it is situs solitus dextrocardia with PS and intact septum. What is against that diagnosis? The ECG is consistent, but even on the ECG you would have got much taller R waves, very tall R waves, a tall RVH-like picture, and that is not there. So what else is clinically against it?

00:34:42CandidateOn the X-ray there is no cardiomegaly; there is no TR murmur; the JVP is normal; a parasternal heave is not there.

00:34:50FacultyYou should come out with all these points. So none of them favours that diagnosis either.

00:34:55Sir, actually one of the students asked on the group: is the looping valid when the heart is dextrocardic?

00:35:02We still use the same terminology. Yes, in dextrocardia it is fine, because we are looking at the frontal QRS axis.

00:35:28It is possible that we are dealing with a single ventricle. We will go to the echo.

00:35:48CandidateEcho, yes.

00:35:56FacultySo what is the situs on echo: ambiguous, solitus or inversus? [inaudible] Are they both on the same side of the spine?

00:36:32CandidateAlmost the same [unclear]. Anterior.

00:36:38FacultyWhere is the liver?

00:36:41CandidateBoth sides.

00:36:42FacultySo what is the situs? What is the reported situs?

00:36:50CandidateSolitus.

00:36:51FacultyOkay. Go on. Next.

00:37:16CandidateSubcostal view in dextrocardia: two atria and two ventricles. [inaudible] There is no AV valve regurgitation.

00:38:03FacultyYou have to go stepwise. Go back. Segmental approach; you have to be systematic. What is this? Situs solitus means what is this?

00:38:16CandidateSitus solitus dextrocardia.

00:38:19FacultyWhich atrium is this?

00:38:21CandidateRight atrium.

00:38:22FacultyAnd this is?

00:38:24CandidateLeft atrium, sir.

00:38:27FacultySo what is this ventricle, and that ventricle?

00:38:29CandidateThat will be the LV, and this is the RV, sir.

00:38:31FacultyNo, no. What is it morphologically? What does it look like?

00:38:34CandidateMorphologically... sorry sir, this is morphologically the LV.

00:38:40FacultyThis looks like a morphological LV, and this looks like an RV. There is some displacement of this valve also; there seems to be a septal attachment. Maybe we have to look for that in another view too. So what is there? This is the RA, no?

00:39:00CandidateRA.

00:39:00FacultyThis is connected to?

00:39:02CandidateLV.

00:39:02FacultyLV, possibly. So that means AV discordance is there. You have to report AV discordance in this view before going further.

00:39:10CandidateAV discordance is there.

00:39:11FacultyOkay, go on. Now come to the AV valves: there is no AV valve regurgitation. Okay, done. Then both ventricular functions seem all right, as far as we can see. Then go on to the interatrial septum and interventricular septum.

00:39:34Situs solitus is fine. Just come to the AV discordance; just show the AV discordance. Situs solitus, dextrocardia: that is fine.

00:40:01So that is AV discordance. How do you say that the first chamber is the right atrium?

00:40:10Candidate[unclear] Actually, we identify it by the SVC draining into it, or the IVC draining to...

00:40:20FacultyYes, so you trace the IVC. Most of the time it will lead to the right atrium. So that is the right atrium there, connected to a smoother ventricle with a valve that is a little lower down, and the left atrium is connected to a trabeculated ventricle.

00:40:48I think you should go back to your recordings; the recordings are reasonable. It can be very difficult to show live in such a complex patient, a 13-year-old. Go to your recordings.

00:41:09Here AV discordance is doubtful. It is not there.

00:41:13Candidate[unclear] Four-chamber view showing a dilated right atrium and right ventricle. No AV discordance.

00:41:55This is... there is no branching.

00:42:03FacultyNo branching. [inaudible] Previous. So the PA is on this side. Okay.

00:42:37Basically: situs solitus, dextrocardia, DORV, VSD, PS.

00:42:41CandidateYes.

00:42:45FacultySo what is the next question you have to answer? Where is the VSD? We have not seen the VSD until now.

00:43:11CandidateThis is a bit off-axis, showing the LA, LV and the VSD, sir. A large VSD, perimembranous, with...

00:43:24FacultyHow do you know it is perimembranous? Are you seeing the aorta when you see this?

00:43:32CandidateLarge VSD.

00:43:33FacultyA large VSD you are seeing, but are you able to see the aorta here? Which vessel is that? This possibly is the pulmonary artery, I don't know, and then the aorta comes. But we have to see it in other views. In DORV the VSD can be subaortic, subpulmonary, or an inlet VSD which is non-committed. So which is it? That is going to determine the plan, what we are going to do.

00:44:03CandidateIf it is an inlet VSD, I would like to see the status of the AV valve, whether there is any override or straddling.

00:44:10FacultyThat's right. Here you are seeing the VSD and you can see the tricuspid valve very nicely, but you are not seeing the aorta or the pulmonary artery overriding that VSD very clearly.

00:44:19CandidateYes.

00:44:22FacultyRoutability: is it routable or not?

00:44:25CandidateNot routable.

00:44:29FacultyThat may be a difficult question to answer from one view; we have to look at multiple views to be sure. So what did the echo report say? What is the VSD like on the echo report?

00:44:45CandidateDoubly committed VSD. So routable to the aorta.

00:44:52FacultyBecause it is not [unclear] either; classically, in the four-chamber view we were not able to see the VSD. [inaudible]

00:45:42UnclearIt looks like a remote VSD. Maybe, possibly, or something like that. It is below the [unclear].

00:45:59Faculty[unclear], what will you do for her? If the VSD is routable, what will you do? If the VSD is not routable, what will you do for her? Because sometimes it can be very confusing; even after echo, CT, MRI and cath, routability remains an issue. So what can be done for that? Suppose it is routable, what will you do? If it is not routable, what will you do?

00:46:31CandidateIf it is routable, then a biventricular repair can be done, sir. But here the VSD is very...

00:46:37FacultyWhether the VSD is routable, let them figure it out. But since I am asking: suppose it is routable, what surgery will the patient undergo?

00:46:46UnclearIt looks like a remote VSD.

00:46:48FacultyYes, a remote VSD. But still, possibly a Nikaido could be possible. They can [unclear] it there and then do the conduit to the RPA.

00:47:06So what is Nikaido? Let us come to that later. But a routable VSD means what surgery?

00:47:15CandidateIt is a sort of correction, like a tetralogy repair: the VSD is routed and the PS is corrected.

00:47:21FacultyAnd if the VSD is not routable?

00:47:23CandidateThen the single-ventricle pathway.

00:47:27FacultyWhat will you do for the single-ventricle pathway?

00:47:31CandidateWe will have to consider a Fontan.

00:47:32FacultyWill we do a cath or not?

00:47:34CandidateWe will do a cath.

00:47:35FacultyA cath for what purpose?

00:47:36CandidateWe will look at the PA anatomy, the PA pressures and the LVEDP.

00:47:42FacultyLVEDP is something you can get only from a cath. And then look at collaterals. These are the essential things you will do; that is all the information you need.

00:47:49CandidateYes sir.

00:47:50FacultySo then, will you do a direct Fontan, or a Glenn followed by a Fontan? A 13-year-old.

00:47:56CandidateIn a 13-year-old, a direct Fontan, sir.

00:47:58FacultyDirect Fontan. Why not a Glenn followed by a Fontan?

00:48:02CandidateSir, she is very blue, saturating 58. If the PAs are favourable and the IVC is also well developed, then you can go for a direct...

00:48:02FacultyWhat is the problem with doing a Glenn at this age, 13 years? As age increases, a smaller share of the blood flow goes to the brain. The upper-segment to lower-segment ratio reverses at around six years of age, so from roughly six or seven years onwards only about 30% of the blood comes from the upper body. If you divert only 30% into the lungs, you are unlikely to improve the saturation much further. So it is better to do a primary Fontan at this age.

00:48:48Should you do a fenestration when you do a primary Fontan? What is a fenestration? Why is it done?

00:48:58CandidateTo decongest, to relieve the pressure.

00:49:00FacultyAgain, there is limited evidence for that. Some people do it and some don't; if the anatomy is very good, they may not do a fenestration. But what is this Nikaido surgery? What is Nikaido? Anybody? At least at DM level, when you are going for an exam, you should know some of the commonly done surgeries, at least by name: REV, Nikaido, Rastelli. What is Rastelli?

00:49:38CandidateSir, Nikaido is a root translocation surgery. It is done in infants; you cannot do it in this patient.

00:49:43FacultyWhat happens in it? [inaudible] Basically, the aorta and PA are taken en bloc and put in front of the LV; then they make the VSD routable and put a conduit to the PA. There are various forms of root translocation surgery, and you should know about them: REV, Nikaido. What is Rastelli? Rastelli you should know. In which condition is Rastelli done?

00:50:23CandidateIt is done in TGA, VSD, PA.

00:50:25FacultyAs we move from pure clinical examination into applied knowledge, you should increase your knowledge on that side also. That is very important.

00:50:36So what are the problems of total correction later in life? Suppose this patient has been shown to be routable.

00:50:44Another emerging approach: nowadays, in difficult routability assessments, we do 3D printing, recreating 3D models from CT or MRI, and then assess operability and routability.

00:51:01So if the patient was routable, underwent total correction and comes back to you after five years, what problems can there be?

00:51:09CandidateThere could be LV dysfunction, sir.

00:51:11FacultyWhy LV dysfunction? Why? Is that the first thing you are worried about? Take simple post-tetralogy repair.

00:51:21CandidateAfter tetralogy repair, arrhythmia can develop, sir.

00:51:25FacultyWhat? Why? What leads to arrhythmia in them?

00:51:29CandidateSir, the right bundle branch block.

00:51:36FacultyWhat is the most common cause of arrhythmia in them? They are at risk of sudden cardiac death, due to what?

00:51:44CandidateIt is PR.

00:51:45FacultyPredominantly PR and RV dysfunction. That is what promotes it. So PR is a major issue.

00:51:49CandidateYes, sir.

00:51:50FacultySo then, what are the other issues? RV dysfunction can happen. Other than that...

00:51:55CandidateResidual lesions could be there: a residual VSD, or residual RVOT obstruction can be left.

00:52:00FacultyYes. There can be peripheral PS. All those are residual problems. Yesterday we discussed restrictive RV physiology. So what other important things should an adult cardiologist know about tetralogy repair? One is significant RV dysfunction, QRS widening and PR needing PVR. The second important thing is residual lesions. The other most important thing that you should all remember is aortopathy. Aortopathy is emerging as a very major issue for the future, so remember it. Aortopathy is part of what, actually? Is it syndromic or not?

00:52:40Two things are 100% in that: aortopathy and a bicuspid pulmonary valve.

00:52:46So what are the indications for PVR after tetralogy repair?

00:52:49CandidateThe indications for PVR are RV dysfunction, severe PR, QRS...

00:52:55FacultyNo. Should all severe PR be operated? Many of them will have severe, free PR; free PR will be there. What are the indications for surgery or intervention in them?

00:53:03CandidateSir, LV end-systolic indexed volume if it is more than... sorry, RV end-systolic indexed volume more than 150... indexed end-systolic volume more than 80, sorry, more than 80.

00:53:21FacultyAnd end-diastolic?

00:53:28CandidateEnd-diastolic more than 150, sir.

00:53:31FacultyHas anything changed here? Severe PR that is symptomatic, due either to right heart failure or arrhythmia, is one indication. For the asymptomatic patient, ACC 2020 now gives a class 2 indication for asymptomatic moderate or greater PR with two of the following. One is an RV end-diastolic volume more than two times the [unclear] end-diastolic volume. Initially there was a lot of confusion about 150, 160, 170, 180; people had the same data and everybody interpreted it differently. Now the latest guideline says two times the size of the LV volume. The RV end-systolic volume is 80 only. RVEF less than 46 [unclear], LVEF less than 50, or a progressive decrease in exercise tolerance. We need two of these.

00:54:20A very nice case, and you did it really well, so give them a big hand. A very complex case. And a hundred percent pass is assured, whatever you say in the exam, because everybody will be in a fix [unclear].

00:54:42What is the advantage of having situs inversus with dextrocardia in later life? Any advantage?

00:55:18CandidateI am not [unclear], sir.

00:55:20FacultyNo, no. There is the story of a well-known bandit who shot an inspector, and the inspector survived. Why? Because he had dextrocardia [unclear]: he was shot on the left side. So that is the advantage. So we end on a little humorous note. Thank you.

14

Day 2 · 18-Oct-2026 · 10:46 hrs · 39 min

Approach to Cyanotic Congenital Heart Disease

  • Cyanotic congenital heart disease
  • Tetralogy of Fallot
  • Eisenmenger syndrome
  • Bedside examination
  • ECG
  • Chest X-ray
  • CCTGA
  • Adult congenital heart disease

This lecture presented a structured clinical approach to cyanotic congenital heart disease, focusing on adults, where the main task is to distinguish tetralogy (TOF) physiology from Eisenmenger syndrome. The speaker covered history (onset and progression of cyanosis, spells, squatting, heart failure, arrhythmia, syncope), a nine-sign bedside examination, the three hemodynamic mechanisms of cyanosis, and chest X-ray and ECG clues that separate classical tetralogy from its mimics (PS with intact septum, pulmonary atresia, TOF with absent pulmonary valve, tricuspid atresia, DORV and CCTGA). The Eisenmenger section dealt with operability as a process, clinical presentations and how to tell VSD, PDA and ASD Eisenmenger apart. Ebstein's anomaly was skipped for lack of time. The talk ended with a list of reading for the exam (ACC/ESC guidelines, the adult Perloff text) and pregnancy outcomes in congenital heart disease.

Teaching points

  1. In an adult with cyanosis, the main question is whether this is TOF physiology or Eisenmenger syndrome. Together they account for roughly 90–95% of cyanotic congenital heart disease in adults.
  2. From the history, establish when the cyanosis started and how it progressed, not only whether there were spells or squatting.
  3. Cyanotic spells almost always mean tetralogy physiology. Indian series have reported squatting in about 3–10% of Eisenmenger patients, but spells do not occur in Eisenmenger.
  4. Classical tetralogy shows essentially nothing on the nine bedside signs (JVP, pulse, BP; apex, parasternal heave, palpable events; heart sounds, added sounds, murmurs): single S2, a soft ejection murmur inversely proportional to cyanosis, no cardiomegaly and little or no parasternal heave. Any additional finding should make you think of something other than tetralogy.
  5. An LV-type apex in cyanotic disease means the RV is 'eaten away' or useless, as in tricuspid atresia, single ventricle with PS, Ebstein's anomaly, or pulmonary atresia with intact septum. In TOF it can also appear with LV dysfunction, AR or large collaterals.
  6. A palpable or audible L-malposed aorta, AV valve regurgitation, complete heart block, or a mismatch between situs and cardiac position points to CCTGA.
  7. A murmur out of proportion to the cyanosis means the mechanism is admixture or transposition physiology, not simple step-down physiology.
  8. PS with intact septum is the opposite of tetralogy: prominent a wave, RV S4, cardiomegaly, parasternal heave, a late-peaking murmur proportional to severity, and a strain pattern on the ECG. Pulmonary atresia has no RVOT murmur but has continuous collateral or PDA murmurs.
  9. ECG patterns: RAD with RVH and early transition suggests TOF, DORV or TGA; LAD with LVH suggests tricuspid atresia with VSD and PS; LAD with RVH suggests AVSD with PS. A QRS axis beyond +150 or a counterclockwise loop favors DORV-VSD-PS.
  10. Operability in Eisenmenger is a process, not a single PVR cut-off. About half of adults present insidiously because their PVR never regressed after birth. Roughly 20–30% of deaths follow avoidable procedures, including pregnancy.
Edited transcript 61 paragraphs · 5,763 words

00:00:09SpeakerGood morning. One good thing about teaching these slides is that every three years the residents change totally. They come as first years and absorb some of the points; they come as second years and absorb some more; and by the time they come as third years they start absorbing at least 50–60% of the points. That is how difficult it is. For us it is easy, because we keep doing the same thing year after year.

00:00:35So what are the most common cyanotic congenital heart diseases at birth? TGA. That is one important thing all of us should understand if you look at the incidence of the various congenital heart diseases. Look at the incidence: it is 0.34 for TGA, 0.26 for hypoplastic left heart and 0.23 for tetralogy of Fallot. But look at the one-year survival — they are vastly different. That is why we never see them, and tetralogy becomes the most common [cyanotic] congenital heart disease beyond the first year of age.

00:01:19Cyanosis in adults: you can classify the defects like this. Common defects with expected survival are tetralogy and Eisenmenger syndrome. Uncommon defects with expected survival are Ebstein's anomaly, and PS with intact septum with an ASD or PFO shunting right to left — what we initially used to call trilogy of Fallot, but no longer; it is PS with intact septum. Then there are uncommon defects with uncommon adult survival. You will find all these conditions with unoperated survival in most of our large institutions. So how do you approach them? From history, examination, X-ray and ECG.

00:01:57So how do you approach an adult with cyanosis? The million-dollar question you are going to answer is whether this is TOF or Eisenmenger syndrome, because these two conditions — TOF physiology and the various forms of Eisenmenger — are going to cover roughly 90 to 95% of all cyanotic congenital heart disease in adults.

00:02:19So what are the ways to differentiate them from history? Anybody? We all know spells and squatting; these two things we have been taught. But the other important things you should know are the onset of cyanosis — when the cyanosis starts — and how the cyanosis is progressing. These are the important things you have to look at: cyanosis, spells and squatting.

00:02:44On the onset of cyanosis, there is a very good teaching on the causes of heart failure and at what age heart failure starts in cyanotic and acyanotic infants. This is the list. The critical point is that heart failure is uncommon in cyanotic congenital heart disease. So what are the conditions that can produce it? This is the list you should think of, with cyanosis and without cyanosis. In VSD and PDA, heart failure most of the time happens a few weeks later. But most of the time the other conditions — the valve lesions, the transposition physiologies and the obstructive conditions — are the ones that are going to produce heart failure. Some of them may be cyanotic, some may not.

00:03:36Taking this further, what are the causes and timing of onset of cyanosis? When cyanosis starts at birth or in the first week of life, what are the conditions? TGA, TAPVC, [unclear] and pulmonary atresia — these form the chunk. What is the typical story in HLHS that will help you understand and remember it? Most of the time these kids are discharged as normal, well babies, and they suddenly come back crashing at around the 8th or 10th day. That is a very classical story of HLHS when routine screening is not being done. Ebstein's adds up here. So TGA, pulmonary atresia, critical tetralogy (which behaves almost like pulmonary atresia), obstructed TAPVC, HLHS and Ebstein's form the whole group.

00:04:17Over time the same conditions remain, but the incidence of TGA goes away and TOF becomes more important. The balanced physiologies come up, and truncus. Beyond the third decade it is generally going to be tetralogy physiology — TOF, or CCTGA-VSD-PS — or Eisenmenger, and among Eisenmenger it is going to be ASD. With PS, oftentimes a single ventricle with balanced physiology can present pretty late in life; they remain balanced for a long time. But beyond the first decade itself it is generally tetralogy, because of its favorable longevity, and then you can have Eisenmenger, Ebstein's and the balanced physiologies.

00:04:58Moving on: what is the quantum and progression of cyanosis in classical tetralogy? Generally 25% are cyanotic at birth and 75% are cyanotic by one year of age. Why does cyanosis appear late? Generally because of the progressive increase in oxygen demand of the child, and the PS can be increasing. The hypoplastic annulus remains hypoplastic. The RVOT obstruction — the muscular obstruction — increases; and it is not only the dynamic muscular obstruction: the endothelium also becomes thickened and parchment-like, which adds a fixed component, while the dynamic component also increases over time. All these things keep happening. Another thing that is cited is the slow change from HbF to HbA, which is a better carrier of oxygen. But most of these kids have normal growth and weight gain; that is something you should remember.

00:05:55The other two important things, after the onset and progression of cyanosis, are squatting and cyanotic spells. Squatting we have already discussed. One important thing: various Indian series report that around 3 to 10% of patients with Eisenmenger also report squatting, because it is a way to increase the SVR; even in Eisenmenger the same physiology should work, to improve the saturation or prevent worsening saturation with exercise. These are the other squatting equivalents you can think of.

00:06:28Moving on to cyanotic spells: they occur from 6 months to 2 years of age, and may start from 2 months of age. The classical theory is that the infundibulum — the RVOT — becomes reactive and goes into spasm. But what we realize is that cyanotic spells are very well known and well described in pulmonary atresia also. That means RVOT spasm alone cannot explain the cyanotic spell. Various other theories have come up — paroxysmal hyperpnea, mechanoreceptors, the respiratory center. This one theory is very important, because it possibly explains why spells don't happen after 2 years of age, when myelination is fully complete.

00:07:16But another important reason spells don't happen after 2 years is that the majority of them die. People with severe tetralogy, if they are not operated and nothing is done, would mostly have died, or they would have learnt how to avoid the exertional activities that produce loss of consciousness; they start resting or squatting as they grow up. [unclear] So basically we are primarily looking at when the cyanosis started, when the patient was told to have heart disease, and how the cyanosis progressed over time. We will discuss tetralogy and the other conditions as we go along.

00:07:53The other important thing we want to differentiate from history is squatting and spells. Spells almost always mean tetralogy physiology, whereas squatting may happen in 3 to 10% of Eisenmenger; some Indian series report that. This is the essential knowledge you should have from history.

00:08:10There are some specific findings in history that will help you differentiate. Is there a history of heart failure? Cyanotic congenital heart disease with heart failure means either there is increased flow with cardiomegaly and heart failure, or ventricular systolic dysfunction and heart failure, or AV valve regurgitation and heart failure. Heart failure has to be because of one of these three.

00:08:40[Responding to an inaudible question] Did you mean squatting? No, sir — cyanotic spells don't happen in Eisenmenger, but squatting has been reported in Eisenmenger. That's what I said: some Indian series have reported a history of squatting relieving cyanosis in around 3 to 10%, but no spells in Eisenmenger.

00:08:59If the patient has failure to thrive, that definitely points to the increased-Qp situations like TGA and truncus, or you can have TOF with absent pulmonary valve; they are also known to have failure to thrive and a history of heart failure. Hemoptysis can occur in tetralogy and Eisenmenger. A history suggestive of tachycardia, such as palpitation, can occur in conditions that involve the AV junction and are likely to have pathways — Ebstein's, AV canal and CCTGA. Syncope could be because of PS [unclear]; Eisenmenger can also rarely have syncope. AV blocks — complete heart blocks — are known to be associated with AV canal, corrected TGA and heterotaxy syndrome.

00:09:50Cardiology examination — many of you feel it is very difficult. It is absolutely simple; it is stupid, actually, to that extent. There are three signs you have to focus on in the general examination: JVP, pulse and BP. Three things you have to focus on before you put your stethoscope: the apical impulse, parasternal heave and palpable events — thrills and palpable sounds. And three things you have to auscultate for: heart sounds, added sounds and murmurs. So you have just nine things to look for — [unclear] unlike the 12 cranial nerves. We just have to focus on nine things, and in many congenital heart diseases nothing is there.

00:10:33So what is the typical finding in tetralogy? A major problem in today's clinical cardiology, or clinical medicine, is that you people have stopped teaching your juniors. Many of us learned from our seniors; not only did our seniors teach us, we learned from them how to teach our juniors, and we kept on doing that. You should not stop. Catch hold of juniors and try to teach them — not for them, but for you.

00:10:58So what is the typical finding in tetralogy? Nothing in these nine signs. Nothing — you don't find anything. Even S2 is single, and you find a very soft murmur, which is a useless murmur in most tetralogy. The pulse is normal and the JVP is normal in most of them; in some adults the a wave may be prominent. BP is usually normal, but around 30 to 50% of adults can have an a wave, depending on the age at which they are studied. Normal cardiac size, no heart failure, mild or no parasternal heave. Why is there no parasternal heave? Because the RV is ejecting very freely into the aorta even though there is PS. A systolic thrill is uncommon; it can be there in pink tetralogy. S2 is single, and the ejection murmur is inversely proportional to cyanosis. Nothing is there — so if you see something, you think of something other than tetralogy.

00:11:58That is how you should look at it. What are the various other conditions with tetralogy physiology that you may encounter? DORV, tricuspid atresia, TGA, CCTGA, AV canal, single ventricle and heterotaxy. Our idea now is to differentiate classical tetralogy from these. Some are soft findings, and some are very hard findings where you can put your money and say, 'Boss, this is this.'

00:12:25One such finding is a classical LV apex. Why do we harp on the LV apex? Because these are predominantly right-sided diseases: most cyanotic congenital heart diseases with decreased Qp are right-sided heart diseases. So how come the LV is more prominent? The LV is prominent very rarely in cyanotic congenital heart disease, and that is why this is given so much importance. What are the reasons? It can be tetralogy physiology or other than tetralogy physiology. The fundamental thing is that the RV is eaten away by something, or the RV is useless, or very rarely the LV becomes suprasystemic, or the LV is in serious trouble. This is how you should think.

00:13:06So what are the conditions? In non-tetralogy physiology: Ebstein's and pulmonary atresia with intact septum — very simple, logical, nothing rocket science. In tetralogy physiology: tricuspid atresia with VSD and PS, single ventricle with PS, and very rarely DORV with restrictive VSD and PS. What is DORV with restrictive VSD and PS? Both great arteries arise from the RV, and the LV has only one outlet, the VSD, which is now getting restrictive. There is no override, nothing, so it behaves like an AS [unclear]. This is such a rare condition that someone who has been looking at adult congenital heart disease for 25 years would have seen roughly 10 cases in total. That is how rare it is, but for the sake of completeness you should know it.

00:13:51What are the other reasons for the LV to become more prominent in tetralogy? When there is LV dysfunction; when for some reason there is AR, or some other reason for the LV to become more dominant; or, say, large AP collaterals with over-shunting; or ventricular systolic dysfunction. In these situations the LV can also become more prominent in TOF, but never as much as the popping LV of tricuspid atresia.

00:14:20Then the pulsation of the L-malposed aorta — I think we discussed this. What is an L-malposed aorta? It is a left-sided anterior aorta. If I had one, it would be here. Many of you would have done cardiac catheterization in CCTGA; the L-malposed aorta will be here. So if, in a tetralogy, you hear a sound or feel a palpable pulsation here, you should start thinking of CCTGA. The other important thing in CCTGA is a discordance between the situs and the cardiac position. CCTGA is far more common in situs inversus with dextrocardia, situs solitus with levocardia — sorry. Whenever there is a discordance between the situs and the cardiac position, you will have more CCTGA.

00:15:09The other important thing is a murmur out of proportion to cyanosis. These are reasonably specific signs you can put your money on. Fundamentally, how can any cyanotic congenital heart disease be blue? There are three hemodynamic pathophysiologies. One is step-down physiology: oxygenation happens in the lung, the pulmonary vein is fully saturated, the LA is fully saturated, and somewhere along the line a right-to-left shunt adds in, pulling in blood, and there is a step-down. So the pulmonary vein at 99 at some point becomes 80, and the whole aorta becomes 80. That happens in either PS or PH physiology; it is the classical step-down physiology.

00:15:51The other important physiology is admixture physiology. The characteristic admixture physiology is TAPVC, where beyond the chamber of mixing every saturation is the same. The third is TGA physiology, transposition physiology, where the characteristic hallmark on hemodynamic oximetry is that the PA saturation is more than the aortic saturation.

00:16:16So what does it mean? As I discussed in the case also, if you get a murmur that is out of proportion, it has to be an outflow tract murmur, or very rarely a VSD murmur or an AV valve regurgitation murmur — we are not talking about those. If you find a murmur out of proportion to cyanosis, it means the flow there is very good and still the patient is cyanosed. That means it is not simple step-down physiology at work; there has to be something in addition — either admixture physiology or transposition physiology. In that previous case also, the PA was nearer to the LV, so it was almost like transposition physiology with unfavorable streaming. That is why excess flow was going, but relatively oxygenated flow was going into the PA and unoxygenated flow into the aorta, and the patient was very blue despite such a good, loud murmur and good flow into the pulmonary artery. That is the reason in DORV, TGA and some complex interplay, like the last case we discussed. These are the relatively specific ones you have to look for.

00:17:21The relatively less common ones that will be helpful: a murmur of AV valve regurgitation, which suggests CCTGA and AV canal. An early diastolic murmur is generally characteristic of absent pulmonary valve, but you can have TOF with AR, PDA with PR, and other causes of EDM. Complete heart block, as we said, is predominantly CCTGA; and with mesocardia or dextrocardia — as I told you, situs opposite to the cardiac position — it is always CCTGA. Cyanosis is generally far more in TGA and DORV, and may be comparatively less in a balanced single ventricle, where the flow is balanced and Qp:Qs is somewhere around one, and in CCTGA.

00:18:02Once you have differentiated that — you first start with tetralogy physiology; we have understood the classical findings in tetralogy and the characteristic findings in the other conditions with tetralogy physiology — there are three other conditions you have to remember at this stage. One is PS with intact septum, or the trilogy of Fallot: how do you differentiate it? The second is pulmonary atresia. The third is TOF with absent pulmonary valve. These are the three things to keep in mind when you are in trouble.

00:18:34In PS with intact septum, everything is the opposite of tetralogy. The a wave will be more prominent, there will be cardiomegaly and a parasternal impulse, S2 will depend on the pathology, and there can be an RV S3 — there must be an RV S4 in most patients. When the heart fails there is an S3, and TR and CV waves start appearing in the JVP; otherwise the a wave is prominent. The a wave and S4 occur in all severe PS, whereas when they start developing failure they will have S3, CV waves, cardiomegaly, parasternal heave and everything. The murmur is proportional to severity, it is usually a late-peaking murmur, and there can be a TR murmur. Everything is just the opposite of what you find in tetralogy.

00:19:15Then pulmonary atresia: it can be 10% of tetralogy, and the onset of cyanosis can be in young infants. One important thing, especially in younger infants and neonates: 20% can start as increased flow. But the most characteristic finding is that you don't get an RVOT murmur — obviously, there is pulmonary atresia. You do find continuous murmurs, generally because of MAPCAs or a PDA, mostly at the site of entry of the collaterals, generally right and left of the sternum or posteriorly, most commonly arising from the descending aorta. The RVOT murmur is not there, and adults with tetralogy and pulmonary atresia almost always have an aortic ejection click because of the dilated aorta.

00:19:53Some tips to remember: these are the various percentages you should know; these are the things to get you out of trouble. How often do you find a right-sided arch? What are the syndromes associated with tetralogy — CATCH 22? What are the postoperative issues, [unclear] and all those things? These are things you should all go and read about.

00:20:15So when do you get heart failure in tetralogy? [Pause] Most of the time none of you are able to tell all the causes. It's very simple. Remember all the regurgitant lesions and ventricular systolic dysfunction; these are commonly found — a very blue patient with ventricular dysfunction, and a restrictive VSD; those are the structural ones. Anemia is common in our country. They can have AR, PR, TR, IE. Ventricular dysfunction is a very common thing. Surgical shunts and collaterals — never say collaterals as your first thing. Arrhythmias, hypertension and aortic stenosis are the rare ones that complete the list.

00:20:59What are the cyanotic congenital heart diseases with a continuous murmur? Pulmonary atresia with VSD and TOF with collaterals; you can have a venous hum in TAPVC, pulmonary AV malformation, peripheral PS, surgically created shunts, and very rarely, at the aortic end, [unclear] atresia. You can again classify them by their various features and go on.

00:21:17So, typical tetralogy — what is this one? One of the things asked in the exam is: why do you get a boot-shaped heart in tetralogy? Anybody — why do you get a boot-shaped heart in tetralogy?

00:21:42AudienceThere are four parts. The toe of the boot is formed by the RV apex, upturned. The front part of the boot is formed by the narrow pulmonary bay. The RA [unclear] forms the back part, and dilated [unclear].

00:21:59SpeakerOkay, these are the three important reasons. Another important practical point: always look at whether there is increased or decreased Qp. At times there can be a discrepancy between the peripheral and the central flow. So in real life also, start putting your hand like this and look at the initial few X-rays; make it a habit. Then you will understand the confusion that happens: in the central area you may find more vascularity, while peripherally nothing is there. That is something you should practice.

00:22:28This is classical CCTGA, with the L-malposed aorta; you can see the epicardial pacemaker lying there. This is classical tricuspid atresia. This is classical TOF with absent pulmonary valve.

00:22:46So what is the typical ECG in tetralogy? Again, you don't teach your undergraduates or MD students. The three things you have to teach are right axis deviation, right ventricular hypertrophy and early transition. What is the definition of transition in the ECG? The appearance of the S wave is transition; early appearance of the S wave in V2 is early transition. So why do you get early transition in tetralogy?

00:23:18This is where you have to be smart and know the examiner — where he is from and what he wants. Most examiners are happy if you say that there is a [unclear] VSD lying under V2 and the posteriorly placed LV is being recorded, so you start getting an early transition. But the reality is that many of us who have worked in congenital heart disease, cyanotic and acyanotic, must have seen echoes of children who have a VSD exactly similar to a tetralogy VSD — an overriding VSD — but with no PS, and you don't get early transition there. So this we don't know. If the only reason were an overriding VSD with V2 over it — the same VSD, like a tetralogy VSD, is found in a lot of patients without PS, and you don't find early transition. We really don't know the reason; many of the reasons we don't know. If you think the examiner is far more evolved, you can talk like this. Otherwise, quickly say [unclear] VSD and stop.

00:24:24What else does it tell you? The depth of the S wave and the amplitude of the R wave in V1 [unclear] — this means the pulmonary blood flow is very good. These are the situations of pink tetralogy. TOF with absent pulmonary valve can have a tall R wave up to V1 [unclear]. Then the difference between PS with intact septum and tetralogy: in PS with intact septum, early or late transition can be there; TOF will never have a late transition. A strain pattern will be there in PS; generally in TOF there is no strain pattern. In PS there will be more peaked P waves; P waves are less peaked in TOF, especially in children.

00:24:56The other important thing is that you have to understand the various ECGs of these conditions. Because of lack of time I won't go into the details of each, but I will come to some other things. This is something where most of you get into trouble: what is looping — what is a counterclockwise loop and what is a clockwise loop, and where do you find them? Q waves in lead I and aVL indicate a counterclockwise loop of the initial QRS vector, commonly found in tricuspid atresia, endocardial cushion defects, some inlet VSDs and DORV. That is a take-home point.

00:25:31This is very classical, very simple. If you find LAD and LVH, the starting point is tricuspid atresia with VSD and PS. Single ventricle with PS can practically present with anything. RAD with RVH is the classical one we see in TOF, DORV and TGA; RAD with LVH is hypoplastic RV; and LAD with RVH is AVSD with PS. How do you diagnose CCTGA? The QRS axis generally helps in differentiation.

00:26:02Practically speaking, DORV-VSD-PS is not one entity, not one disease. DORV-VSD-PS with normally related great arteries and a subaortic VSD will be almost like tetralogy; you cannot differentiate it clinically, and even on echo only the proportion of override varies — the rest remains the same. The ECG may at times help: the QRS axis is more than +150 in DORV-VSD-PS, or they can at times have a counterclockwise loop. This is how the ECG can differentiate DORV-VSD-PS from classical tetralogy; the rest are the same. CCTGA has very specific ECG features: the axis, the loop, the blocks and the pathways that can be associated.

00:26:49Moving on quickly to Eisenmenger. I don't know why most examiners are still paranoid about Paul Wood's series — a very important historical series, but possibly of very little clinical relevance today. Still, you have to know it. These are some of the unfortunate stories we only have in India. This kid was seen at 2 years of age and now comes, around 15 years later, with this X-ray. The patient was sent for surgery after cardiac catheterization, but nothing was done. This is how things settle. This is what happens in Eisenmenger: the cardiac enlargement [unclear] disappears, the pulmonary blood flow reduces — there is nothing there in a VSD Eisenmenger. This is a very startling X-ray of the same patient that can teach you a lot.

00:27:35Eisenmenger is most commonly secondary to ventricular septal defect. At what age does Eisenmengerization start, or at what age does it become inoperable? Roughly 2 years; it can happen earlier. In which situations does it happen earlier? With some anatomical characteristics, like AV canal defect and truncus arteriosus — increased-Qp situations — and TGA with increased Qp, or with patient factors like Down syndrome; they may become Eisenmenger earlier.

00:28:08There are two important things: at what age they become inoperable, and at what age they present with Eisenmenger syndrome symptoms. These are two different things. With a large VSD left unoperated, the PVR goes on increasing and irreversible changes start happening. The Qp:Qs, which was around 3:1 to start with, goes down and down until at some point it becomes 1:1, where there is no cardiomegaly, no heart failure, and the patient is all right. But at some point it becomes 0.8:1; then reversal starts and the patient becomes symptomatic. You have to understand that in a typical VSD it is a process. Operability and inoperability are not one point; it is not that at a PVR of 8 they are operable and at 8.1 they are inoperable [figures partly unclear]. It doesn't work like that, but unfortunately that is how the questions are being asked. These are the important concepts you have to understand.

00:29:03So it is a process that gets established by around 1 to 2 years of age, except in ASD. Closure of the defect is detrimental. So never give them as a last chance — they should be operated; or, the other way around, never give them the benefit of the doubt if their operability is in question [unclear]. Median survival is roughly 30 to 40 years of age because, as you know, the prognosis of Eisenmenger is far better than that of people who have [idiopathic] PH. And remember one thing: roughly 20 to 30% of all deaths in Eisenmenger and PH happen because of some unwanted procedure, including pregnancy. That we have to avoid.

00:29:35I teach Eisenmenger as three particular syndromes. One is cyanosis since birth: the typical TGA-VSD-PH [unclear], DORV-VSD-PH with malposed vessels, AV canal, and various single ventricles with PH — they start with cyanosis very early in life; or truncus arteriosus may initially be acyanotic but rapidly becomes cyanotic and Eisenmenger. Most of them don't live to adulthood. The other is failure to thrive, then the classical settled phase and an asymptomatic adolescence. This is the characteristic course we all anticipate them to have, but it is found in only around 50% of adult patients coming with Eisenmenger. Half of them have an insidious presentation: they were never told they had heart disease, never had any increased-Qp finding, and now come with insidious onset of exercise limitation and onset of cyanosis at around 20 years of age. That is very characteristic.

00:30:26Can anybody tell me why that happens hemodynamically? This is because of non-regression of the elevated PVR. We all know the PVR is very high at birth; with a large VSD, in some of them the PVR never regresses or comes down. That means they never go through the increased-Qp phase in life, and then come back later as Eisenmenger.

00:30:51What are the key points in Eisenmenger? Cyanosis can be variable; generally they are not very blue. Most of the very blue Eisenmengers are gone; they become very blue towards the end. The JVP is prominent [unclear]; an a wave can be found in some of them, depending on the shunt. The heart is not enlarged, except in ASD. P2 is loud and palpable in two-thirds of patients. An ejection click can be found, there can be an EDM of PR, and S2 can be variable depending on the etiology.

00:31:20So, generally: mild cyanosis, absence of cardiomegaly and heart failure, minimal or no parasternal heave except in ASD, absence of significant shunt murmurs, and predominantly PH signs — a constant ejection click of PH, and a pulmonary regurgitation murmur may become audible. In general, these are the signs of PH that all of you should be aware of: palpable P2, palpable RV S3 and S4, palpable pulmonary artery pulsation, and [unclear] peripheral pruning. These are the auscultatory signs you can get in any condition with PH.

00:31:54If you find a TR murmur or a PR murmur, you should be able to differentiate whether it is high-pressure or low-pressure TR. This will be useful both in congenital heart disease and in adult heart disease. For example, if a patient has a loud EDM, it can be PDA with PH, or it can be TOF with absent pulmonary valve, with a soft ejection systolic murmur along with the EDM. The EDM and the quality of the second sound are going to differentiate whether it is TOF with absent pulmonary valve, PDA with PR, or VSD with AR. These are the differentials you are looking at.

00:32:29The murmur is generally pansystolic in one TR, whereas it is early systolic in the other; high pitch versus low pitch. This is how to differentiate high-pressure and low-pressure TR: predominantly the pitch — it is generally a longer, high-pitched murmur, versus a brief, decrescendo [unclear] murmur — and the accompanying signs of P2 will help. A prominent PR is generally found in PDA with PH, and the X-ray also helps. I will not go into the details, but these are the various Indian series on Eisenmenger you should be aware of; that is something very important.

00:33:01How do you differentiate between VSD, PDA and ASD Eisenmenger? Generally the usual age of Eisenmenger is slightly delayed in ASD. Differential cyanosis is found in roughly 50% of patients with PDA; why the remaining 50% don't have differential cyanosis, you should think about. Cardiomegaly is found in ASD. S2 is wide and fixed in ASD, whereas it is narrow or normal in PDA and single in VSD [audio: 'ASD']. Parasternal heave is found in ASD alone. TR is common in ASD, whereas PR is common in PDA. This is how you should differentiate among the Eisenmenger syndromes.

00:33:35Moving further, I won't be able to discuss Ebstein's in detail, because there is quite a lot to discuss and I have only 45 minutes, so I thought I would skip Ebstein's; you should go and read about it. What are the differential diagnoses of this classical Ebstein's X-ray? Pericardial effusion, and PS with TR — the predominantly right-sided heart diseases.

00:33:56I will end my talk with some other common things you will be asked in the exam and should know. All of you should read a few things because — I'm giving you one question out of your exam — adult congenital heart disease and rheumatic heart disease are going to be there for all of you. So you should read much more about them. The things you must read are the ACC and ESC guidelines — at least know most of the tables and the recommendation part of the ACC guidelines — and also the adult Perloff, with its important tables, so that you come across the common issues in adult congenital heart disease.

00:34:28What are the cardiac issues in adult congenital heart disease? Myocardial dysfunction due to hypoxia, delayed presentation, AV valve regurgitation, dilated aorta and aortic regurgitation, pulmonary collaterals, arrhythmias and infection. What are the non-cardiac issues? Almost all systems are affected — hematological, neurological; they can have hemoptysis, renal problems and arthropathy. There are other non-cardiac issues as well.

00:34:57Two important slides you should remember are about pregnancy outcomes in congenital heart disease. This is a very important slide. The fetal outcomes — elective abortion, incomplete pregnancy, miscarriages — are far worse in these [unclear]: Fontan and cyanotic congenital heart disease. Anybody saturating less than 85% to start with has a poor prognosis for fetal outcomes, and Fontan patients don't do well because the cardiac output is fixed; they cannot keep increasing their cardiac output as the pregnancy advances. What happens to the maternal outcomes? They are diametrically different. Maternal outcomes are very bad in Eisenmenger, all forms of PH and ventricular dysfunction. That is the predominant slide.

00:35:47The other thing all of you should know is the risk of recurrence in the fetus if the mother is affected, the father is affected, or a previous sibling is affected. This is easy and logical; go and read about it. There are some other things I have not covered, because I have not found them in adults. One thing that may be found rarely is a patient who presents like an ASD — cardiomegaly, split S2 — but is cyanosed: think of TAPVC. Everything looks like ASD, but the patient is cyanosed; generally that is TAPVC. The rest are uncommon; without PS they will all present like Eisenmenger. Similarly, obstructed TAPVC and HLHS are not found in adults, and some other things very rarely come in the examinations, like common atrium and unobstructed TAPVC.

00:36:40So I hope it is not rocket science. Keep it simple: just have a logical approach, and most of us will be able to come to a conclusion. It is so simple; nothing is there. Some other things you can read are these; you can go through them. Thank you.

15

Day 2 · 18-Oct-2026 · 11:44 hrs · 56 min

Recent Cardiology Guidelines and Clinical Trials

  • Clinical trials
  • Guidelines
  • Acute coronary syndrome
  • Dyslipidemia
  • Heart failure
  • Valvular heart disease
  • Atrial fibrillation
  • Pulmonary hypertension

This lecture reviewed cardiology guidelines and clinical trials from roughly the previous two years, aimed at exam candidates. It covered the fifth universal definition of MI, the 2025 ACS guideline (DAPT duration, LDL targets, intravascular imaging, complete revascularization), and trials on DAPT de-escalation, post-MI beta-blockers, colchicine, factor XIa inhibition, intravascular imaging-guided PCI and ORBITA-CTO. It also covered the CKM syndrome and PREVENT score, the new dyslipidemia guidelines and lipid trials, novel antihypertensive agents, GLP-1 agonists, and the new heart failure definition and therapy terminology, with a short comment from a heart failure specialist on the faculty. The lecture closed with heart failure, HCM, amyloid, atrial fibrillation, valvular, pulmonary hypertension, pulmonary embolism and AI trials.

Teaching points

  1. For a new guideline, read the first two or three pages (what is new) and the last two pages (summary).
  2. The fifth universal definition of MI simplifies classification into primary MI, secondary MI and procedure-related MI, and incorporates cardiac imaging into the work-up.
  3. 2025 ACS guideline: intravascular imaging is class 1 in high-risk or complex PCI; radial access is preferred; complete revascularization should be done at least during the index hospitalization; 12 months of DAPT is still recommended when bleeding risk is low.
  4. With high bleeding risk, aspirin can be stopped after 3 months but never before one month. When oral anticoagulation is required, clopidogrel is preferred over ticagrelor or prasugrel as the second agent.
  5. In ACS, add a non-statin agent if LDL is above 70, consider one if LDL is 55–69, and repeat the lipid panel 4–6 weeks after starting statins. EZ-PAVE showed LDL below 55 to be more beneficial than 55–70.
  6. The dyslipidemia guidelines replace the PCE with the PREVENT score, bring back LDL-C and non-HDL-C targets, and advise measuring Lp(a) once in a lifetime (above 50 is high risk). The first lipid profile is due at 9–11 years, or as early as 2 years if there is a family history of premature CVD.
  7. Heart failure: the mildly reduced EF category has been removed (below 50% is reduced, 50% or more is preserved). GDMT is now described as FMT, AMT and GDIT, and finerenone (FINEARTS-HF) has a class 1A recommendation.
  8. Cardiac myosin inhibitors help obstructive HCM (EXPLORER-HCM, VALOR-HCM, MAPLE-HCM), but ODYSSEY-HCM showed no benefit in non-obstructive HCM.
  9. ESC valve guideline: TAVI for tricuspid AS at 70 years or older regardless of surgical risk; a new class 2a indication for early intervention in asymptomatic severe high-gradient AS; earlier intervention for asymptomatic primary MR when AF, pulmonary hypertension or significant LA dilatation is present.
  10. ALONE-AF suggests that long-term anticoagulation is not routinely needed after successful AF ablation. CLOSURE-AF and CHAMPION-AF do not support routinely replacing medical therapy with LAA closure.
Edited transcript 65 paragraphs · 5,770 words

00:00:11Speaker[unclear] Welcome back. It is a very good exercise to look at the new developments, especially with respect to clinical trials and guidelines in recent years. Some of these topics come as theory questions. Some of you have already appeared for the theory examination and seen that trials are given a lot of importance, at least in one paper. Then guidelines and how they change: you will understand the dynamics of the thought process, how new developments are ultimately incorporated into guidelines. That will give a lot of insight into what is happening.

00:01:20I have taken two years as the cut-off for calling something recent. Over the last two years, these are the important guidelines. There are about two dozen guidelines, but I have highlighted the important ones in green. If you have time, go through them. At least the first two pages of each guideline tell you what is new compared with the previous guidelines, and the last page again summarizes everything in the document. So read the first two or three pages and the last two pages. That will give you an insight into why the new guidelines have come into practice. I will talk about some of the messages from these guidelines as I go through the lecture.

00:02:17All of us were very comfortable with the universal definition of MI since 2018, but the experts felt it was a little difficult to remember those classes, and they did not correspond well with the actual mechanism in all situations. The distinction between actual MI and myocardial injury is sometimes not so clear when you use a sensitive parameter like high-sensitivity troponin, and some conditions — coronary spasm, spontaneous dissection and coronary embolism — are not explained by the 4th definition. That is why they have introduced the 5th universal definition of MI, which is much simpler: there is primary MI, secondary MI and procedure-related MI. In this, cardiac imaging has been incorporated as an important part of the workup to reach a diagnosis. The 5th universal definition is accepted by the ESC, ACC, AHA and World Heart Federation.

00:03:30Coming to the ACS guidelines 2025, there are many changes, but the important ones are these. Imaging has been given class 1 status: in high-risk and complex PCI, coronary imaging is a class 1 recommendation. Radial access is of course the preferred approach wherever possible. Complete revascularization — if not on the day of primary PCI, at least during the index hospitalization — should be the accepted practice. Then DAPT: if the bleeding risk is low, 12 months of DAPT is still recommended, in spite of so many trials endorsing shorter DAPT. But in high bleeding risk you have to individualize and decide when to stop one of the two molecules.

00:04:36For the LDL target: if it is more than 70 in ACS, it is always advisable to add non-statin agents; if it is between 55 and 69, non-statin therapy is very reasonable. After starting statins, at least after 4 or 6 weeks, you should do one more lipid panel, so that you can decide whether what we are giving is adequate in reaching the targets. Then — this may not be very relevant — the use of Impella has been given a [2a; unclear] recommendation. Cardiac rehabilitation should start even before discharge; early starting of cardiac rehabilitation has also been highlighted in the 2025 guidelines.

00:05:37If you look at DAPT per se: all patients with low bleeding risk should be given 12 months of DAPT, and there is monotherapy, where aspirin can be taken out and ticagrelor given as monotherapy. In those with high bleeding risk, you can take out aspirin after 3 months, but never before one month. The trials say that stopping one of the molecules before one month is more dangerous. So after one month — preferably after the 3rd month — you can stop aspirin and continue ticagrelor alone, or clopidogrel, or prasugrel. But in those who require oral anticoagulation, the second molecule should be clopidogrel in preference to ticagrelor or prasugrel. These are the points in the 2025 guidelines.

00:06:35Coming to ACS trials, there are many. The red ones are the most important — every student should know them — and the green ones are also important; that is the gradation I have put. A similar gradation has been put for chronic coronary disease. I will just give the message of some of the important trials.

00:07:06The first issue is a shorter duration of DAPT and shifting to monotherapy, which I was talking about. There is a recent trial, SMART-CHOICE, published at ACC 2025: in high ischemic-risk patients after PCI, after a standard duration of DAPT, even clopidogrel monotherapy was seen to reduce events. We think clopidogrel is an inferior molecule after the publication of certain trials, but it is not so; this trial has proven that even clopidogrel monotherapy can be used after withdrawing aspirin. NEO-MINDSET is another trial, which looked particularly at stopping aspirin even before one month with new-generation drug-eluting stents, but found it more harmful if you stop before one month. So at least one month is the mandatory period for which DAPT should be continued.

00:08:15AudienceExcuse me, sir — in SMART-CHOICE, does 'after standard duration' mean after one year, or 3 months?

00:08:23SpeakerIn SMART-CHOICE it is 3 months — 3 months, yes.

00:08:30There is one more recent trial, at ESC 2025, in which a large number were included — the DUAL-ACS trial — comparing 3-month versus 12-month DAPT. There was not much difference. So it is now much more endorsed that 3 months may be adequate for DAPT with new-generation stents and the expertise that most operators have gained.

00:09:05Another issue is beta blockers: how long after acute myocardial infarction? For those with reduced ejection fraction — reduced LV function — there is no controversy. In those with preserved ejection fraction post-MI, beta-blocker use beyond one year is controversial. A number of trials have given various results. In 2024, REDUCE-AMI showed no benefit in continuing beyond one year if there is preserved ejection fraction, but the ABYSS trial showed that interrupting a well-tolerated beta blocker after one year has no additional benefit, so it had better be continued. This was followed by a few more trials last year, REBOOT and BETAMI-DANBLOCK. REBOOT is a neutral trial; BETAMI-DANBLOCK has shown that there is a benefit in stopping at the end of one year.

00:10:15The latest in this series of trials is SMART-DECISION, 2026. They took 2,500 patients and found that discontinuation of beta blockers is non-inferior to continuing them beyond one year in stable patients with preserved systolic function. This is again an important trial, because ABYSS gave a different view and this counters the conclusion of ABYSS. So SMART-DECISION has said that beyond one year it may not be necessary to continue beta blockers after MI if the ejection fraction is more than 50%.

00:11:02Then complete revascularization during primary PCI itself: what should be done for the non-culprit critical lesion? A number of trials are there — PRAMI, CvLPRIT, DANAMI — a series of trials, and the COMPLETE trial [year heard as 2009; unclear] firmly showed that, if not on the day of primary PCI, then before discharge, the other non-culprit lesions, if critical, should be tackled — at least before 45 days. Either you discharge and call the patient back, or do it in the index hospitalization, but usually within 45 days the non-culprit critical lesions should also be tackled to give complete revascularization.

00:11:53This is a recent trial, called [name unclear; heard as 'Air STEMI'], 2026, [ESC; unclear], done at multiple centers in Italy and Pakistan. For the non-culprit lesions, one group had functional angiography and the other conventional angiography. With functional angiography, the number of lesions undergoing PCI was smaller, and there was not much difference in the primary outcome or the other events. So it is a good idea to do functional angiography of the non-culprit vessel and do the complete revascularization based on that.

00:12:44[Responding to an inaudible audience question] No — whenever, within the index hospitalization. The index hospitalization may not mean the day of the primary PCI; it can be done then.

00:13:04Colchicine has also been tried in chronic CAD as well as ACS. The COLCOT trial showed significant improvement in acute coronary syndromes, but CLEAR SYNERGY, at TCT 2024, showed no significant reduction in MACE events in 7,000 patients with colchicine. Another meta-analysis this year has again shown no statistically significant reduction in MACE with colchicine. So colchicine has no place in our management of ACS.

00:13:47Apart from factor Xa inhibitors, we now have a group of factor XIa inhibitors, which act at a different step and are said to cause less bleeding while having a similar effect to the Xa agents. They have been studied in various conditions such as atrial fibrillation, and a few molecules have been introduced. This particular study, published at ACC 2026, is the LIBREXIA-ACS trial, where they studied milvexian 25 mg twice daily orally, but it did not show any reduction in CV death, MI or stroke; there was no increase in ICH or fatal bleeding. It is a negative trial, so the initial enthusiasm for factor XIa inhibitors is still pending; it is no longer [seen as] better.

00:14:52With respect to chronic coronary disease, a new term has been introduced: CKM syndrome. It is somewhat an extension of the more famous metabolic syndrome. Whereas metabolic syndrome concentrates more on the early stage, or risk-factor management, CKM syndrome encompasses all the stages: stage 0, with no risk factors; stage 1, metabolic risk factors; stage 2, metabolic risk factors and/or CKD; stage 3, subclinical CVD or subclinical heart failure; and stage 4, CVD — heart failure, AF, stroke, peripheral arterial disease — with or without CKD and renal failure. So this includes a larger spectrum. It has been introduced, and there is a JACC paper this year with certain take-home messages.

00:16:01CKM staging should be recommended for all youths and adults, so that we can even think of 30-year risk estimates. The PREVENT score was initially introduced as a 10-year risk score for ASCVD, but it has been extended to 10-year as well as 30-year risk estimates for ASCVD, heart failure and total CVD. This is an extension of that, and it is specifically recommended if the patient has pre-heart failure, MASLD or OSA, and particularly whenever the patient presents with ASCVD, overweight or obesity. That means the emphasis is now shifting from treating established disease to early, integrated management of metabolic, renal and cardiovascular risk throughout life. It is an expanded metabolic syndrome; the concept is very good.

00:17:14Then, on the management of CVD and chronic kidney disease — somewhat parallel to the CKM syndrome — the ESC talks mainly about using the urinary albumin–creatinine ratio as routine screening besides eGFR; albuminuria should be looked at, not just eGFR; and the use of finerenone. These are some of the important points.

00:17:46Then the FAME 3 five-year follow-up results have been announced. They again endorse that in three-vessel disease, FFR-guided PCI is not much different from CABG; there is no significant difference. That means CABG and FFR-guided PCI give somewhat equivalent cardiac events, but the PCI group had higher repeat revascularization, just like in other multivessel disease trials.

00:18:24They have particularly highlighted DKCRUSH-VIII, which took complex bifurcation lesions and studied IVUS-guided versus angiography-guided PCI; wherever IVUS was used, the results were better. Another trial is RENOVATE-COMPLEX-PCI, 2025. Here again, IVUS-guided PCI gave results closer to CABG results, whereas angiography-guided PCI did not give equivalent results. That means the use of IVUS, especially in left main bifurcation lesions and complex triple-vessel disease, is of much importance, and relying only on angiography may give inferior results.

00:19:20Similarly, IVUS-related trials — [names unclear; heard as 'IOS chip' and 'optimal chip'] — have also endorsed this, especially in unprotected left main. The OPTIMAL trial [unclear] has shown that IVUS-guided results were much better. In this particular trial, death, procedure-related events and overall safety events were similar whether you used IVUS or angiography-guided PCI.

00:19:51Then the PROCTOR trial is very important, because the conventional thinking is that in post-CABG patients presenting with angina again, tackling the native vessel is better. That is the usual teaching and practice. However, this trial has shown that tackling the SVG graft has better one-year clinical outcomes compared with PCI of the native vessel.

00:20:22Then ORBITA-CTO. Can anyone tell me what the first ORBITA trial is? Anyone? [Pause] Yes, it is a sham procedure. They do it as if they are doing PTCA in two patients: in one they actually put the stent after ballooning; in the other they put the wire, do not dilate with the balloon, and come out. It was a very controversial trial, but it showed that the benefit of some PCIs is because of a sham effect. Can anyone tell me one or two other sham procedures in cardiology? Anyone? [Audience answer inaudible] Okay, very good.

00:21:33This ORBITA trial is somewhat different — it is the CTO trial. They very selectively took CTOs with a J-CTO score of less than 3, based on these predictors: length more than 20, bend more than 45, calcification — all these factors are taken to arrive at the score — single-vessel CTO, symptomatic angina, and the operator should accept the case. By these criteria, they found that CTO PCI improved the Canadian class. That means CTO PCI is not just a placebo effect; angina improves by doing PCI for symptomatic CTO.

00:22:34Then the dyslipidemia guidelines. Before I talk — this is very important — can anyone tell me the new changes in the new dyslipidemia guidelines? Anyone? This must have been a seminar topic for so many students. Yes, anyone? [Audience answer inaudible] Very good. Very good, something about it.

00:23:16Here, for the first time, for risk scoring they have taken the PREVENT score, which replaces the PCE score used previously. Then LDL-C and non-HDL-C targets have come back. Previously there was a period when targets were not important: what mattered was whether the initial LDL was reduced by 50% or 25% — that was the target, not absolute targets. But here the targets have been reintroduced. Then emphasis is given on Lp(a) estimation at least once in a lifetime. What is the cut-off? Above 50 is called high risk. ApoB is also taken to indicate residual atherosclerotic risk. Coronary calcium is given much more importance in risk stratification. Then: lower LDL, earlier and longer; earlier introduction of non-statin therapy; and integration of lipid management into CKM, diabetes and CKD care. These are the important take-home messages from the recent dyslipidemia guidelines.

00:24:40On the PREVENT score — sorry for the slide — it is a web-based scoring system. You have to feed in sex, age, HDL, GFR, BMI, diabetes, current smoking or not, whether lipid-lowering medication is already being taken, antihypertensive medication, and optionally urinary albumin–creatinine ratio, HbA1c and zip code. From these they get the PREVENT score, both 10-year and 30-year, for heart failure and ASCVD separately if you want, or together as CVD. This is the score they discuss mostly in the dyslipidemia guidelines.

00:25:29This picture summarizes what they want to convey. One: screen earlier. How early? Maybe even at 2 years if there is a family history of premature CVD. If there is no such family history, 9 to 11 years is the age by which the first lipid profile has to be done. Then screen lipids again at the age of 19, and recheck every 5 years. Use the PREVENT score, aim for lower LDL and treat longer. That means the lifetime LDL burden has to be assessed early and treated effectively and continuously; the longer you treat and keep LDL at the recommended levels, the fewer the 30-year events. That is the idea of these guidelines. So even now we have to involve pediatricians and pediatric cardiologists in noting these points and practicing them.

00:26:45There are certain important trials in dyslipidemia. VESALIUS-CV is a very important trial, extensively discussed in the literature. They included people aged more than 50 years with no prior MI or stroke, but with high-risk diabetes or other features of atherosclerosis, and dyslipidemia on treatment with LDL more than 90, non-HDL more than 120, or ApoB more than 80. Such patients were given evolocumab as primary prevention. It is a different study because evolocumab was used for primary prevention in a high-risk group, to see whether it reduces MI and stroke rates. There was a very gross reduction of LDL levels, to the tune of the 50s and 45–50, and 3-point MACE came down significantly — a 31% relative reduction with evolocumab. Mortality was also reduced significantly. In summary, in high-risk primary-prevention patients without known significant atherosclerosis, the addition of the PCSK9 inhibitor evolocumab resulted in a very important decrease in events. This is an important development.

00:28:26Then there is another trial, CORE-TIMI [number unclear; heard as '7A and B'], on hypertriglyceridemia. The classical teaching is that LDL is the primary target, and the secondary targets have been non-HDL cholesterol, then triglycerides, then HDL. For high triglyceride levels there were previously no specific drugs as such, except fenofibrate and so on. But olezarsen is an APOC3-targeting antisense oligonucleotide. It significantly reduced triglycerides, and both ASCVD events and pancreatitis were reduced in this trial. So this is a new therapeutic agent with a lot of potential, and it may come up in a bigger way in the years to follow.

00:29:26CORALreef Lipids: here again an oral PCSK9 inhibitor, enlicitide, has been used, and in this trial there was a significant decrease of events; there was a change in the LDL and it has resulted in [an effect on] CV events as well [unclear]. Then there is the EZ-PAVE trial, published this year, which studied two targets — LDL less than 55 versus between 55 and 70 — for the first time. This is the direct demonstration that less than 55 is much more beneficial than a range of 55 to 70, so it is very important to remember this.

00:30:27For refractory hypertension, we now have a different group of antihypertensive drugs, aldosterone synthase inhibitors. They act here, reducing the production of aldosterone. Multiple trials have been coming up; BaxHTN is a recent one, which showed that in refractory hypertension it reduced systolic blood pressure consistently and significantly at 12 weeks.

00:31:02Then zilebesiran, tried in KARDIA-2 and KARDIA-3, a recent trial, where it is given subcutaneously, 300 or 600, once in 6 months. Anything given periodically in injectable form sounds something like a vaccine, just like your inclisiran. So it has a lot of potential for preventive strategies, and in refractory hypertension, if it works well, this will probably be a very welcome molecule in future.

00:31:45Then GLP-1 agonists — they are big, revolutionary drugs, drugs for the cardiologist more than for the diabetologist. Now there are many doctors who are taking these drugs, and many young women of marriageable age have been taking them even over the counter, without a doctor's prescription; it is a big commercial hit besides being a scientific advance. I don't have to tell you much about it, but the beauty of it is that you give a subcutaneous injection once a week, in incremental doses — after observation for one or two months you can go up in an incremental way — and there is very satisfactory weight reduction as well as CV events [benefit]. I think even some of the audience must already be on such drugs.

00:32:48The SOUL trial is an important trial that has given the evidence. There are oral preparations as well as injections, and the injections have had much more positive reports, but this trial has shown that oral semaglutide in type 2 diabetes reduced major events by about 14% compared with placebo.

00:33:07Coming to heart failure, there is a second universal definition. This universal definition of heart failure emphasizes the concept that we should look at heart failure as a clinical syndrome, not as a single-test diagnosis. Second, we should move beyond rigid LVEF cut-offs. These are very important, revolutionary concepts one should get: EF is a phenotype marker, not the definition of heart failure. Sir here is a heart failure expert; I think he can give appropriate comments on this.

00:33:53Now heart failure, like many other chronic diseases in cardiology, has been staged: stage A, at risk; stage B, pre-heart failure; stage C, symptomatic heart failure; stage D, advanced heart failure. The important change in the concepts and the way we describe them has to be understood. If you look at therapy, GDMT is now a household name among cardiologists, but it has been replaced by more precise treatment-strategy terminology: foundational medical therapy (FMT), additional medical therapy (AMT) and guideline-directed interventional therapy (GDIT). These are the abbreviations one should be familiar with. This chart shows what is recommended in the reduced ejection fraction group and what in the preserved ejection fraction group.

00:34:55Another important change is the removal of heart failure with mildly reduced ejection fraction. Life is easier now: less than 50% is reduced, more than 50% is preserved. We are in transition, so there will be some confusion. Your examiners also may not be fully aware, so they may ask old-type or new-type questions; you should know how to answer them. An important thing in these guidelines is the introduction of finerenone as an important molecule, because of its proven efficacy, with a class 1A recommendation. At this juncture I will request [a faculty colleague] to comment. Sir, any comments?

00:35:54FacultyBasically, there is no ejection-fraction-based category now; it is only below 50% or more than 50%. The 40 to 50% group — mildly reduced, or mid-range as we used to call it before — has been taken out, because all the therapies that work below 40 also work in the 40 to 50 range. And two therapies have been found to be class 1 in preserved ejection fraction. That is what it is going to tell. The other change is in the naming of the therapies: foundational medical therapy and additional medical therapy. You should know these three things — FMT, AMT and GDIT — instead of GDMT; GDMT comprises these three groups. Yes, this is the most important.

00:36:49SpeakerThank you, sir. There is one Indian study, an expert consensus on heart failure with preserved ejection fraction — a phenotypic approach. They identified important phenotypic differences between Indian and Western heart failure with preserved ejection fraction with respect to age, sex dominance, the basic etiology, association with diabetes and CKD, BMI relation and the use of biomarkers. These factors have been highlighted, and we should be alert to the Indian phenotype of heart failure with reduced or preserved ejection fraction.

00:37:46With respect to heart failure there are more than 50 trials, but I will concentrate on only three or four important ones. One is SUMMIT-HF: obesity with heart failure with preserved ejection fraction, using tirzepatide, which definitely showed reduced events in this important trial, published in 2024 and 2025. Then FINEARTS-HF is another landmark trial, where finerenone lowered the total risk of worsening heart failure events and death from cardiovascular causes compared with placebo in those with heart failure with mid-range and preserved ejection fraction. Before this trial there was hardly any drug specifically for heart failure with preserved ejection fraction, so this is an important molecule one should think of.

00:38:51The same thing was again discussed in recent trials and recent events, and much more conclusive remarks have been made. One: it will complement the current standard of care for heart failure with mid-range and preserved ejection fraction. It may improve the quality of life. It may increase hospital and patient costs, because it is available only under the brand name. These are the conclusions or comments on this trial.

00:39:29Then DIGIT-HF. Digoxin was widely used when we were students; then it was said to be a useless drug, and people stopped using digoxin except in a few with atrial fibrillation. Now there is a relook at digoxin. This trial has shown that treatment with digitoxin — actually digitoxin — lowered the combined risk of death from any cause or hospital admission for worsening heart failure in patients with chronic heart failure and reduced ejection fraction who received guideline-directed therapy. So this trial has given a revised relook at the role of digoxin. There is at least some subset where it may be of some use, especially if the primary cause is rheumatic heart disease with multivalve disease. There is one more study in RHD [name unclear; heard as 'Digitalis RHD'], a separate study, which has shown that those on digoxin do better.

00:40:47Then there is the emergence of several molecules, the cardiac myosin inhibitors; you must already be aware of them. They reduce the LVOT gradient, increase exercise capacity, improve symptoms, improve diastolic function and improve cardiac markers. There are mainly two molecules that have been widely tested, mavacamten and aficamten. Can any student tell me the trials associated with mavacamten?

00:41:22AudienceVALOR-HCM, EXPLORER-HCM. Aficamten — MAPLE-HCM, SEQUOIA-HCM.

00:41:29SpeakerVery good. MAPLE-HCM is an important phase 3 trial. It has shown that in symptomatic obstructive HCM patients, aficamten as monotherapy significantly improved peak oxygen uptake and reduced symptoms and LVOT gradients after Valsalva. This is a very important trial. The same has been done in younger adolescents and older children — SCOUT-HCM — and here also it has shown a positive benefit. The ODYSSEY trial is actually in the subset where there is no obstruction: in non-obstructive HCM, the same molecule has no benefit. This should be understood.

00:42:25Another important area where a lot of research is going on is amyloidosis. One latest trial is the CARDIO-TTRansform trial, which used eplontersen, a GalNAc-conjugated antisense oligonucleotide, and found improvement in various parameters; it is a positive trial. This is the largest trial to date using this molecule, so this may be another molecule of the future.

00:43:05Then this is of interest: SPIRRIT-HFpEF showed no clear benefit of spironolactone in heart failure with preserved ejection fraction and heart failure with mid-range ejection fraction. It is an underpowered trial, but because it is a common molecule I have included it. Another important heart failure trial is CASTLE-HTx: if somebody has heart failure and atrial fibrillation, catheter ablation of the atrial fibrillation will probably add to the benefit beyond GDMT. This is an important trial.

00:43:50Coming to atrial fibrillation trials, there are about 50 of them, but of late the focus is on left atrial appendage occlusion and its comparison with other groups. ALONE-AF is a trial that addresses whether, after successful atrial fibrillation ablation, there is any need for anticoagulation. It showed that there is no need for prolonged anticoagulation after successful AF ablation; it only increases the bleeding risk for the patient. So for the first time, an atrial fibrillation trial has shown that it need not be used routinely.

00:44:42Then the CHAMPION-AF trial: they took about 3,000 patients and compared the Watchman FLX device with NOACs. The 3-year results are out, and cardiovascular death and stroke are not much different between the two. So LA appendage closure may not give a much more significant difference compared with NOACs. CLOSURE-AF, again on LA appendage closure, showed a high risk of outcomes compared with the medical group. The conclusion of this trial is that though the procedure can be easily learnt and practiced, that does not mean it should be done in every case. Continuing medication and its side effects may not be enough reason to send patients for LA appendage closure, based on the evidence of this trial.

00:46:01Coming to the valvular heart disease guidelines: the ESC has given valvular heart disease guidelines in which the TAVI indications have been expanded. In those above 70 years with tricuspid aortic stenosis, irrespective of surgical risk, we should advise TAVI. Surgery remains important in younger patients, particularly because lifetime reintervention and bicuspid anatomy are important to consider. If somebody is asymptomatic with severe high-gradient AS, there is a new class 2a indication for early intervention.

00:46:36With respect to primary MR, earlier intervention has been recommended. It is a new class 1 indication in asymptomatic patients also, with preserved ejection fraction but with [heard as 'more than 3'] markers like atrial fibrillation, pulmonary hypertension and significant LA dilatation. So if somebody asks whether asymptomatic MR needs early surgical repair, you have to say that if markers like atrial fibrillation, pulmonary hypertension or significant LA dilatation are present, it is better to send them for surgical repair of the mitral valve [unclear: 'if they're symptomatic'].

00:47:23Secondary MR TEER has come a little to center stage. It is a class 1 indication in appropriately selected cases with ejection fraction less than 50%; it reduces hospitalizations due to heart failure and improves quality of life. Tricuspid regurgitation interventions are also coming in: more and more transcatheter tricuspid interventions are being introduced, especially in high-risk symptomatic severe TR.

00:47:54These are the important publications of the last two years: PARTNER 3 seven-year results, Evolut Low Risk five-year results, DAPA-TAVI and ALIGN-AR. Can any student say who this gentleman is? [Audience answers inaudible] Most of you are correct, but it is not clear. Alain Cribier — why is he famous? I had the good fortune of going to his lab, and he would cross any stenotic AS using a [unclear; heard as 'Swanes'] catheter in less than 30 seconds. I think some of our senior faculty would also have interacted with him; he used to come very often to India, to various centers. He was the first man to do pulmonary balloon valvotomy as well as to introduce TAVI.

00:48:55There are a number of TAVI devices available, and it is a subject by itself. After you qualify in DNB or DM, you need further training, as a fellowship or a certificate course, to become an expert in TAVI. There are self-expanding and balloon-expandable devices; there are specific devices for AR, like the JenaValve and J-Valve; and there are specific devices for bicuspid aortic valve or an abnormal root. All these variables decide which device you have to use.

00:49:40The PARTNER 3 low-risk seven-year results have shown that, compared with surgical replacement, with TAVR the survival at 1 year, 5 years and 10 years is equivalent. Mind you, this is a surgically low-risk group. The Evolut Low Risk five-year results have also shown similarity between the two groups, whether you do Evolut TAVR or subject them to surgery, in the low-risk group. So we have to take all this into consideration before actually deciding for our own patient.

00:50:25ALIGN-AR: previously, severe pure AR was a contraindication. Later they did some selective cases with a change in the valve design. Now it is feasible, and the JenaValve Trilogy THV is the only device with specific characteristics for this use, with high device success and low mortality. A number of trials are coming up with it. Then cerebral protection during TAVR: this is the Sentinel device for cerebral protection. [Trial name unclear; heard as 'Protect H2 H'] is a trial evaluating this device, and it was a very effective device. Then DAPA-TAVI: most severe AS patients also have severe LV dysfunction; with dapagliflozin the ultimate results are good, especially in the elderly.

00:51:25Then there are a number of percutaneous devices for MR and TR that have been studied, and there are important trials in miscellaneous conditions like pulmonary hypertension, pulmonary embolism and peripheral arterial disease. For want of time, I will just give the message from the important ones.

00:51:49Sotatercept is a new molecule that has come as an important and welcome molecule for primary pulmonary hypertension, after using your usual two-drug or three-drug therapy; in resistant cases this drug can be used. It is given subcutaneously once in 3 weeks. It is a costly drug: the monthly cost in India at present is about 3,00,000, but the clinical benefit has been documented and reported to be very encouraging. It is given as subcutaneous three-weekly injections. An expert in PH from Hyderabad says that even after the second injection the patient gives very good positive feedback of improvement in clinical symptoms. We have to observe further; the cost should come down further, and we don't know its long-term importance.

00:52:50There is a trial endorsing this, called ZENITH, and a similar trial, [name unclear; heard as 'Gardens'], which have endorsed it, and significant reduction has been reported with the use of sotatercept. An Indian algorithm has also been designed incorporating this molecule, by a group of about 8 to 10 authors, for managing PH.

00:53:19Then pulmonary embolism: they have increasingly defined the risk stratification and also the place for catheter-based therapies. Catheter-based device selection is especially based on availability and operator and staff expertise, and you have to look at the bleeding risk and evaluate the thrombus burden, anatomy and accessibility. There are a number of devices available. STORM-PE has shown the use of this particular device. It looks like a simple vacuum, but it is a very controlled vacuum, and the catheter is much more wide-bore; it is widely used in India now. This is another method of tackling thrombus in the pulmonary arteries. The HI-PEITHO trial [heard as 'Hifield'] — ultrasound-facilitated catheter-based fibrinolysis for acute pulmonary embolism — is again a positive trial. These are the new trials that are coming up, and we will hear more and more about them.

00:54:33Of late — the last one or two slides — AI is coming in a big way into cardiology practice as well. AI-ECG can predict future LV dysfunction, future arrhythmic events, and even the future presence of valvular [unclear] heart disease; the Apple Watch study and others are already well known and published. These two trials are related to AI; I will just briefly tell you about them. One is in the STEMI program: for STEMI activations, if the ECG is analyzed by an AI system, the true STEMI pick-up is much higher, you can avoid unnecessarily rushing the team for PCI, and false positivity is reduced by using AI to analyze the first-contact ECG. There are also trials of AI-based CT, which analyzes coronary plaque features and can predict which may be of higher risk; the plaque itself can be quantified better using AI. I think there are too many to study, but I have touched upon only the important ones. Best of luck.

16

Day 2 · 18-Oct-2026 · 12:47 hrs · 8 min

Cardiology OSCE Part 1 Pacing and Case Discussion

  • Conduction system pacing
  • Left bundle branch area pacing
  • Arrhythmia-induced cardiomyopathy
  • CTEPD
  • Pseudo-severe stenosis
  • CT coronary angiography
Video upload pending

This recorded segment of the first Day 2 OSCE session consists largely of faculty teaching. A faculty member compared His bundle pacing, CRT-P and left bundle branch area pacing, then discussed arrhythmia-induced cardiomyopathy and other emerging entities. A brief exchange followed on the limits of CT coronary angiography with heavy calcification and on distinguishing true from pseudo-severe stenosis by contractile reserve; the case itself is not captured intelligibly in the recording.

Teaching points

  1. His bundle pacing is out of favour because of pacing threshold problems and lead dislodgement.
  2. CRT-P paces from epicardium to endocardium and is non-physiological; left bundle branch area pacing is more physiological and, in the speaker's set-up, less expensive.
  3. Not only tachycardia but also bradycardia and pre-excitation alone can produce cardiomyopathy, which is why the term 'arrhythmia-induced cardiomyopathy' is replacing 'tachycardiomyopathy'.
  4. Bradycardia-induced cardiomyopathy and chronic thromboembolic pulmonary disease without PH (CTEPD) were highlighted as emerging, increasingly well-characterised entities.
  5. CT coronary angiography may be inaccurate in the presence of severe calcification.
  6. In pseudo-severe stenosis, the valve area and stroke output increase when contractile reserve is assessed.
Edited transcript 16 paragraphs · 415 words

00:00:04Candidate[unclear] conduction system pacing, or left bundle branch area pacing.

00:00:11FacultyYes.

00:00:17Now, His bundle pacing is out of favour because of the threshold and also dislodgement. So you either go for [unclear — possibly LBBAP] or CRT-P, but CRT-P is non-physiological. See, you are pacing from epicardium to endocardium, whereas left bundle branch area pacing is more physiological, and in our set-up it is also less expensive: in a dual-chamber pacemaker, the same leads [unclear].

00:00:51Yes, even if you want to do an ICD [unclear] also, you put a lead in the left bundle area and pace it, and put the RV lead, the ICD lead [unclear]. That also serves the purpose.

00:01:51One important thing: we all know that tachycardia can produce cardiomyopathy. Can bradycardia induce cardiomyopathy? Yes. What is the mechanism behind that? What is the mechanism behind tachycardia-induced cardiomyopathy? So, there are two possibilities. One is that the same disease process involves the myocardium as well as the conduction system. That is one possibility. Or can bradycardia [itself] induce cardiomyopathy? What is the emerging thing? What are the other ways in which arrhythmia can produce cardiomyopathy? You all understand tachycardiomyopathy very well now. What are the other ways? One is bradycardia; what else can produce cardiomyopathy?

00:02:26Pre-excitation alone can produce cardiomyopathy. That is why the term is being changed. What is the term for tachycardiomyopathy now? Arrhythmia-induced cardiomyopathy, so all three can produce it. So read about bradycardia-induced cardiomyopathy. That's an emerging disease.

00:02:46There are a few emerging diseases that have come up in the last [unclear] years. One is bradycardia-induced cardiomyopathy; one is [unclear] cardiomyopathy, which is coming up as a very distinct entity; and the other one is CTEPD, like CTEPH: chronic thromboembolic pulmonary disease without PH. They are getting very well characterised now.

00:05:05AudienceOne question, before going to the history: can you go for CT [unclear]?

00:05:14FacultyHis question is the same as your question.

00:05:19No, before doing [unclear], you do [unclear], right?

00:05:44But especially with severe calcification [unclear], if you do a CT coronary angiogram it may not be accurate, so you may miss [unclear].

00:06:05Yes, that we can do.

00:06:11No, that is only to rule out whether it is true or pseudo. It doesn't matter, true or pseudo. Suppose it is pseudo. Pseudo means what? What do you do for this case? Pseudo-severe. What are the causes of pseudo-severe?

00:06:44CandidateIn pseudo-severe, the area increases; the stroke output increases. There is reserve, contractile reserve.

00:07:06FacultyGood, very good.

00:07:34UnclearWhat time? [inaudible]

17

Day 2 · 18-Oct-2026 · 12:59 hrs · 32 min

Cardiology OSCE Part 2 Imaging and Hemodynamics

  • Balloon mitral valvotomy
  • Cath haemodynamics
  • FFR
  • Takotsubo cardiomyopathy
  • Coronary imaging and hardware
  • Chest X-ray spotters
  • Restrictive cardiomyopathy
Video upload pending

This OSCE session presented a sequence of imaging and haemodynamic spotters, including echocardiograms, ECG, LV angiography, OCT, cath-lab pressure tracings, coronary guidewires and chest X-rays, with candidates answering in turn and faculty correcting and expanding on each answer. Much of the discussion centred on complications of balloon mitral valvotomy (papillary muscle tear, acute severe MR, pericardial effusion after transseptal puncture, LA clot) and on interpretation of pressure tracings, including FFR pitfalls. The session also included a brief announcement of the institution's annual simulator-based Back to Basics programme.

Teaching points

  1. A papillary muscle tear after BMV may cause no significant MR when a fibrotic subvalvular apparatus holds the valve together.
  2. Do not call a narrow-QRS regular rhythm sinus rhythm without checking the P axis: a globally positive aVR and negative lead I with reverse R-wave progression suggests situs inversus dextrocardia.
  3. Takotsubo is said to recover in the reverse direction, so the apex may already have recovered on a delayed LV angiogram; 'happy heart syndrome' (Diagoras syndrome) is the variant triggered by positive emotion.
  4. After BMV, monitor blood pressure, heart rate and saturation for acute MR; a V wave more than 50% of systolic blood pressure warrants immediate referral.
  5. Pa in FFR comes from the guide-catheter tip, which can ventricularize and give a false value; measure with the guide disengaged and after adequate nitrate, and use IVUS for a suspected ostial lesion.
  6. CTO wires use a core-to-tip design for penetrating power, whereas workhorse wires use a shaping-ribbon design for flexibility.
  7. After a BMV, LVEDP may rise (long-standing severe MS with low output, or associated AR/MR), so an unchanged LA pressure does not necessarily mean an inadequate result.
  8. For pericardial effusion during BMV, retain the dilator or balloon in place, aspirate, and send for surgery if it reaccumulates; completing a fast BMV lowers LA pressure and reduces bleeding.
  9. Obtain a chest X-ray before discharge after pacemaker implantation to detect pneumothorax and lead displacement.
  10. Restrictive cardiomyopathies that commonly need a pacemaker are amyloidosis and sarcoidosis; desmin-related disease is another, and EMF only rarely does.
Edited transcript 171 paragraphs · 3,460 words

00:00:05FacultyThe natural material, what is it?

00:00:10CandidateLatex.

00:00:10FacultyLatex. Okay.

00:00:19And he is doing well after 6 years or so.

00:00:24No, he is doing well. He is okay now. I think we can do a valve-in-valve if he develops a problem, but he is a young boy, so probably we will replace it with a mechanical valve.

00:00:39This patient underwent a procedure the previous day and subsequently we found this, but the person who had done it was very much relieved, even though [unclear]. See this particular aspect. So what is the basic diagnosis? You can speak louder.

00:01:13CandidateMitral stenosis, because the PML is stationary, the valve is thickened and only the AML is moving.

00:01:16FacultyOkay. And what happened to the structure there in the background?

00:01:24CandidatePapillary muscle. Ruptured.

00:01:29FacultyThe papillary muscle has ruptured after the BMV. But is there mitral regurgitation? No. There is no mitral regurgitation, so it was an incidental finding the next day after BMV. Fortunately, why did that happen? Even though there was a papillary muscle tear, there was no significant MR because the whole subvalvular apparatus is fibrotic, and that is holding the valve together. Okay, next person.

00:02:02It is there, but it was okay probably. I don't remember the gradient, but it was a reasonable result.

00:02:10I think it is a partial tear. That is why it is holding in the same way. [unclear] is also there.

00:02:21Okay, next person. I have also not seen this; it is taken from a journal. So what is this? A case of heart failure, presenting with palpitations, presenting with bluish-grey skin discoloration of sun-exposed areas, and [improving] after withdrawal of that therapy. Anyone?

00:02:47Amiodarone. This is called blue man syndrome with amiodarone. I have seen only this picture of blue man syndrome.

00:02:56Before you leave: we have a programme called Back to Basics. I thought if I keep it for the last, we may not reach that slide, so I will show it at the beginning. We do Back to Basics every year. We have only 150 seats, so we will start registering from November 1st. It is all simulator-based training, and we have a wet lab also. All participants will be given a pig heart to dissect, and there will be a session, and all the interventional companies will bring their simulators, including TAVI, MitraClip, all those things. If somebody is interested, you can join. If you have a group for this, I will post it there.

00:03:44Next person.

00:03:47CandidateSir, is it sinus rhythm, narrow QRS?

00:03:50FacultyHow will you identify sinus rhythm? Don't jump into saying it is sinus rhythm on seeing a narrow QRS and a regular rhythm. How will you identify sinus rhythm?

00:04:11CandidateaVR globally positive, lead I globally negative, Sir.

00:04:22FacultyOkay, so what is it? You can say it only from the limb leads. What will you say?

00:04:33CandidateSitus inversus.

00:04:33FacultySitus inversus. And what about the chest leads?

00:04:43CandidateReverse progression from V1 to V6.

00:04:43FacultyOkay, so what is it then?

00:04:48CandidateDextrocardia, most likely situs inversus dextrocardia.

00:04:52FacultySo always look at V1 before just jumping to say it is sinus rhythm. In V1 the P wave will be inverted and the QRS will mostly be pointing negative.

00:05:13No, I agree it is sinus rhythm only. In that way it is sinus rhythm, but the sinus node is on the opposite side, that is all.

00:05:27Who has the mic? Yes, please.

00:05:31CandidateRAO view, LV angiogram.

00:05:39FacultyThis patient had significant chest pain and was admitted somewhere 2 weeks back, and the angiogram was done 2 weeks later. [unclear]

00:05:51CandidateThat will give the clue, Sir. The gender will give the clue.

00:05:55FacultyThat is why I didn't tell. There are 2 or 3 findings in this. So what are the segments you are seeing? This is the LV angiogram in RAO view. This is the anterobasal, this is the anterolateral, this is apical, this is diaphragmatic, and this is posterobasal. These are the segments of the LV in the RAO view. So which segments are abnormal? The apex is normal, normally contracting. The basal segments are already contracting. What about the anterolateral and the diaphragmatic segments? Say something: are they moving or not?

00:06:49CandidateDyskinesia.

00:06:51FacultyWhat are the wall motion abnormalities? Can you tell me? What is normal? What is normal contractility? There should be 30% systolic thickening; then it is called normal. Here it is not moving: it is hypokinesia of the anterolateral and the diaphragmatic segments. So what are the wall motion abnormalities? Normal, hypokinesia, akinesia, dyskinesia and aneurysm. These are the wall motion abnormalities.

00:07:22What has happened is that this patient had a stressful event 2 weeks back, and when we did this it was probably a recovering takotsubo. It is said that the recovery of takotsubo happens in the reverse direction; that is why the apex has recovered. The coronaries were normal. But one more finding is there that will give an extra mark. You can very clearly see diastolic MR; probably with the ectopic also, but there is significant MR in diastole. Okay, so what is happy heart syndrome? This one is due to negative emotions. What is the other called? What is the syndrome?

00:08:15Happy heart syndrome; there is a name for it: Diagoras syndrome. You can read about it, from the old Olympics, BC. Diagoras won an Olympic gold and his 2 sons also got Olympic gold. Then he was carried off by these 2 sons, he had a very high positive emotion, he collapsed and died. That is why it is called Diagoras syndrome. So that is positive emotion, and in this happy heart syndrome you will have the abnormal variants of takotsubo.

00:09:04Who has the mic?

00:09:04CandidateOCT images, Sir.

00:09:14FacultyOCT imaging showing what?

00:09:23CandidateFibrotic lesions with vasa vasorum.

00:09:28FacultyWhat is it? I will give you a clue. This patient had a lesion and underwent an interventional procedure.

00:09:42CandidateThis is neointimal hyperplasia.

00:09:42FacultyWhat is it? See here, what is there? He underwent stenting. I am giving another clue: bioresorbable vascular [scaffold]. What are the bioresorbable vascular scaffolds available? What was the thickness of the Absorb bioresorbable vascular scaffold?

00:10:09Candidate140 microns.

00:10:09FacultyOkay, so that is why this is seen. But how will you differentiate it from a normal metal stent?

00:10:19CandidateShadowing will not be there.

00:10:19FacultyShadowing is not there. It will get absorbed. What is the scaffold which is available now? The Indian bioresorbable vascular scaffold, MeRes. What is the thickness of that? What is the full name of the stent? MeRes100, so it is 100 microns.

00:10:40Okay, and then it seems like they have put in 2 stents and there is no overlap. So this here is possibly native disease, because no stent struts are seen.

00:10:51Correct. I think it may be 2 stents with no overlap. Correct.

00:11:01Okay, this patient underwent a procedure and this was the haemodynamic finding in the cath lab.

00:11:11CandidateTracing of left ventricle and left atrium.

00:11:14FacultyVery good.

00:11:18CandidateSinus rhythm.

00:11:22FacultyWhat is the left ventricular pressure? Is it normal?

00:11:27CandidateSlightly increased, 180.

00:11:27FacultyOkay, then what about the LA pressure? It is already written there. Which wave is that, A wave or V wave?

00:11:39CandidateV wave.

00:11:39FacultyWhy do you say it is the V wave? This is the P wave, so the A wave should come here. This must be the A wave and this is the V wave. What is the height of the V wave?

00:11:52Candidate100.

00:11:52FacultySo what might have happened?

00:11:55CandidateSevere MR might have happened.

00:11:55FacultySevere. What was the procedure done?

00:12:01CandidatePTMC. Balloon mitral valvotomy might have been done; severe MR.

00:12:05FacultyWhat will you do with this patient?

00:12:10CandidateWait for one week, then discharge.

00:12:14FacultySurgery? Should I immediately take the patient for surgery? A patient who has developed MR following the procedure: what are the things you will monitor in that patient?

00:12:21CandidateBlood pressure.

00:12:21FacultyVery good. One more.

00:12:31CandidatePulmonary edema.

00:12:31FacultyYes, for that I only want monitoring.

00:12:37CandidateSaturation.

00:12:37FacultyThese are the 3 things you should monitor. In a patient who has developed MR there will be tachycardia, there will be hypertension [unclear; possibly hypotension], there will be a fall in saturation. If any of these things are there, you should refer before that. And one more haemodynamic point: if the V wave is more than 50% of the systolic blood pressure, you have to refer the patient immediately.

00:13:01Sir, any comments?

00:13:01I think the question is why the LV pressure is so high, and what is the pattern in the LV pressure? What is it due to? There is no outflow obstruction, because it is a simple [BMV]. I don't know, but this was one of the patients; a V wave of more than 100 I have never seen. That is why it is very interesting. I don't know why it is like that, if this patient underwent mitral valve replacement. [unclear]

00:13:41That reflection will be there. Okay.

00:13:50You did a pacemaker, and the next day, while going for discharge, the patient showed this X-ray.

00:14:09No, don't shout, let him answer. You will get your chance.

00:14:15CandidatePneumothorax.

00:14:15FacultyPneumothorax. Very good. There is a pneumothorax. The patient was asymptomatic, didn't have any symptoms, but it was found on a routine X-ray: pneumothorax following a pacemaker. Next.

00:14:37For every pacemaker you take an X-ray before discharge. Sometimes this may worsen and the patient will come back.

00:14:46UnclearIt is less. It is less.

00:14:53FacultyAnyway, you have to do an X-ray before discharge for 2 things. What are the 2 things? One is this one, second is [unclear]. And third is the position of the lead; sometimes the lead may get displaced.

00:15:08Okay, next. This is an FFR tracing of the same patient.

00:15:15CandidateMaybe artifact; zeroing might not have been done.

00:15:15FacultyNo, zeroing was correct. Which is the true FFR value, 0.88 or 0.66?

00:15:24Candidate0.88, because the baseline 0.88 is correct.

00:15:37FacultyThe red is aortic and the green is Pd. Pa is the red and Pd is the green. That baseline [unclear].

00:15:59UnclearI'm saying 0.66 is correct.

00:16:07FacultyPa is obtained from where?

00:16:12CandidatePd is from the wire; Pa is from the tip of the guide catheter.

00:16:17FacultySo the tip of the guide catheter can go to which places, or what can it do?

00:16:22CandidateVentricularization.

00:16:27FacultyIt can ventricularize. Okay, so that is the importance of that. It has ventricularized and this has given a false value. And this is the normal aortic tracing you get. So always do 2 things. Measure the FFR after disengaging the guide; that is a recommendation. And always give adequate nitrate when you do the procedure, especially when you have an ostial plaque or lesion, or one is suspected. When you do a diagnostic, definitely you have to give nitro, and you have to disengage the guide and measure.

00:17:14When you have an ostial lesion, you have to go for IVUS. There is no question on that. If you have an ostial lesion suspected, you have to go for IVUS. Otherwise you will get values like this, because it may produce [unclear].

00:17:30Okay, who has the mic? These are 2 types of coronary wires. Which one is for CTO, and what is it called?

00:17:43CandidateThe second wire is for CTO.

00:17:43FacultyThis is for CTO. Why? What are the wire designs? You might have done, or at least assisted, so many PCIs. What are the 2 types of designs of the wire? Anyone else?

00:18:16This is a CTO wire because this is called a core-to-tip design. Only then will the core go up to the tip, and that is how it gets its penetrating power. This is called a shaping ribbon; this is the workhorse wire. All wires will have a ball at the tip, but here the ball is connected by a shaping ribbon, and this allows it to be a flexible wire. So this is a CTO wire because it is core-to-tip, and this is the shaping ribbon design. These are the 2 designs of coronary wires: core-to-tip and shaping ribbon. Okay, next.

00:19:03Who has the mic? Yes, take it.

00:19:18CandidateFigure of 8 cardiac silhouette.

00:19:23FacultyWhat about the lung fields?

00:19:23CandidateLung fields are plethoric.

00:19:27FacultySo what is the diagnosis?

00:19:30CandidateTAPVC.

00:19:30FacultyTAPVC. You have to tell where it is: infracardiac, cardiac?

00:19:39CandidateSupracardiac.

00:19:39FacultySupracardiac. And what is the figure of 8 formed of? What is here? What is here?

00:19:50CandidateVertical vein, and then innominate vein.

00:19:53FacultyThe vertical vein goes to the innominate vein, and the innominate vein is connected to?

00:20:00CandidateLikely to SVC, Sir.

00:20:00FacultyYes, so that is right: TAPVC.

00:20:05This patient underwent a procedure. The person who was doing it was happy as well as not that happy. Tell me why. Who has the mic? Go on describing.

00:20:17CandidateCath pressure tracing of LV and aorta.

00:20:23FacultyI will give you the clue. Go on describing. There is a pressure gradient across the LV. What is the LV pressure, 240 or 220? Okay. What is the aortic pressure? Around 100. So what is the gradient?

00:20:47Candidate140.

00:20:47Faculty140 gradient. Is it a dynamic obstruction, or a fixed obstruction with a slow-rising type?

00:20:50CandidateFixed obstruction.

00:20:54FacultySo what is it most likely? Aortic stenosis. What aortic stenosis?

00:20:58CandidateValvar aortic stenosis.

00:20:58FacultyFixed obstruction, most likely valvar aortic stenosis. And what might have been done? Now what is the gradient? Is there any significant gradient? It is the same patient.

00:21:18CandidateAround 20.

00:21:18FacultyAround 20. There is no significant gradient, very minimal gradient only. And what has happened from here to here? Why was the consultant happy?

00:21:27CandidateBecause there is no gradient.

00:21:31FacultyWhy was he a little bit sad?

00:21:31CandidateDiastolic BP is so low.

00:21:34FacultyDiastolic BP is so low. So what might have happened?

00:21:38CandidateAR.

00:21:38FacultySo what might have been the procedure? BAV. But if it was a TAVI, they would have tackled the paravalvular leak to some extent. Okay, and there is one more phenomenon here; somebody who can tell will get an extra mark. One more haemodynamic phenomenon which is seen here?

00:22:06Pressure recovery. You can see the pressure rising from here to there. That is called pressure recovery; read about the mechanism. What is AR index?

00:22:25Tell it for everyone's benefit; you are saying it in your mind. Go slowly, so that people who cannot understand as fast as you can follow. Speak up.

00:22:41CandidateLVEDP.

00:22:45FacultyWhat values are significant? Okay, next. Who has the mic?

00:22:59After this procedure the consultant was happy. So tell me all the waves. I will point out each of the waves; tell me which they are. What is this wave?

00:23:13CandidateA wave.

00:23:13FacultyWhy do you say A wave?

00:23:16CandidateJust following the P wave.

00:23:16FacultySo this is the P wave, so this is the A wave. What is this wave?

00:23:20CandidateC wave.

00:23:24FacultyThe C wave happens in which phase?

00:23:24CandidateVentricular filling [unclear].

00:23:30FacultyC wave, and this is the V wave. And what is the mean pressure approximately?

00:23:39CandidateAround 20.

00:23:39FacultyAround 20. And what is the LVEDP? How will you calculate the LVEDP? You know the whole [tracing] is there.

00:23:50CandidatePeak of R wave.

00:23:53FacultyYou drop a vertical line from the peak of the R wave; it falls somewhere here. So that is the LVEDP. The LVEDP is around 8 or 9, around 10. Okay. So there is a gradient of: LA mean is 20, LVEDP is around 10, a gradient of 10. So what is this point called? [unclear] point. Before that?

00:24:23UnclearThat is due to the A wave.

00:24:25FacultyOkay, what happened here, post procedure? In mitral stenosis, you can sometimes get a very prominent V wave even if there is no MR, due to the compliance of the LA. What happened here?

00:24:43CandidateIt has reduced post procedure.

00:24:43FacultyYes, it has reduced post procedure. The LVEDP remains the same, but the LA mean has come down to around 12, so a very minimal gradient is there. Yesterday it was said, what is the single most [important sign] when you see a good result? You get a very prominent C wave. Yesterday Sir, who has the largest experience of BMV, probably in the world, was saying this: the prominent C wave. Okay, next.

00:25:16So what are the predictors of such an LVEDP increase after BMV? Here it is a marginal rise from 8 to 12; sometimes it increases further. What are the predictors? Because you will be monitoring LA pressure, you will be mistaking it for not having done the procedure. Understand what I am saying? Most of the time you only monitor the LA pressure. The LA pressure doesn't come down; from 20 it remains 16 only. But the LVEDP has risen from 8 to 16. In what situations does it happen?

00:25:48When it is long-standing severe MS with reduced cardiac output, or when there is AR also; aortic valve disease also behaves the same way. In mitral stenosis the LV is underfilled because there is no flow. When sudden flow occurs, the LVEDP can go up; and when there is AR or MR also, the LVEDP can go up. Okay, next. Who has the mic?

00:26:23CandidateAP view, a pigtail in the pericardial space post transseptal puncture.

00:26:32FacultyWhat is this catheter? How many French is it? What French is a pigtail usually, 5 or 6? I say 5 or 6. How many times the size of this catheter is this other catheter?

00:26:58CandidateAround 2 to 3 times.

00:27:01FacultySo what is this catheter? What intervention was done, and what is this catheter? You have already seen it many times: this is a balloon, BMV catheter, Inoue or whatever. Okay, what has happened? Pericardial effusion, and somebody is aspirating. So what will you do? Will you take out the balloon?

00:27:21No, you shouldn't take it out. What will you do? You retain whatever you have, the dilator or the balloon, and make sure that the pericardium is aspirated and no further collection is there. Then you keep the wire there and remove the balloon, and if it reaccumulates, you push the catheter or dilator back and send the patient for surgery.

00:27:50Okay, and can anything else be done, for example if it is a stitch phenomenon? If there is a stitch phenomenon, what else can you do?

00:28:01I think Jayadeva has done a few cases, 5. People have put a device there, people have put glue there. At GB Pant they have put in glue to avoid surgery. They have put devices to close that stitch. What is stitch phenomenon? Everybody knows? There is a space in between, a pericardial recess. What happens is the needle exits from the RA into the pericardial space and then comes back into the LA again. So there is a gap there and the bleeding will continue.

00:28:35And if you find a small effusion, will you complete the BMV, or just send the patient for surgery? You complete the BMV, because when the LA pressure reduces, the bleeding also comes down. So try to finish off a fast BMV and then send the patient for surgery; then they need to close only the rent. You can also avoid an open-heart surgery if you get a good result.

00:29:06Simple; we saw it yesterday also.

00:29:12CandidateTransesophageal.

00:29:16FacultyWhen you see an LA clot, it need not always be transesophageal. You can see an LA clot on transthoracic or transesophageal echo. That is the point. Which view is this? High parasternal short axis. You will see this is the LA appendage, but here the clot is projecting beyond the LA appendage. What is this classification?

00:29:50This is the Manjunath classification; [unclear] it generated this good picture.

00:30:04Okay, then it is written: type [unclear], if it is very much restricted to the LA appendage, BMV is possible. And here it is written that even if it is in the LA, if you can direct the puncture from here to the valve, BMV can be done if you do it carefully. In the other types, BMV is contraindicated.

00:30:29Okay, I think probably this is the last one.

00:30:41CandidateLeads in the RA; it is a transthoracic echo. There is dilatation of the LA and RA. There are leads in the RA and RV chambers.

00:30:58FacultyWhat is the diagnosis? What is the contractility of the LV and RV?

00:31:04CandidateGood contractility, Sir.

00:31:04FacultyGood contractility. Then why are the LA and RA dilated?

00:31:07CandidateSo it is an RCM kind of picture. It could be a restrictive cardiomyopathy with bilateral atrial enlargement. I don't know the diagnosis, but... Maybe, Sir, I don't know.

00:31:36FacultySo, among the restrictive cardiomyopathies, which types need a pacemaker? This patient had a pacemaker. Mostly it is cardiac amyloidosis or sarcoid; these are the 2. Then desmin-related, familial HCM, all those; and rarely EMF requires a pacemaker. Even though we have done pacemakers for EMF, it is rare. So amyloid and sarcoid: you should remember restrictive cardiomyopathy going in for a pacemaker. Shall we stop? Okay, thank you.

18

Day 2 · 18-Oct-2026 · 14:15 hrs · 43 min

Pulmonary Atresia with VSD Case Discussion

  • Pulmonary atresia with VSD
  • MAPCAs
  • Natural history of VSD
  • Cyanotic congenital heart disease
  • Pediatric history taking
  • RV-PA conduits
  • Transcatheter pulmonary valves

A pediatric cardiology candidate presented a 15-year-old girl with feeding difficulty and recurrent respiratory infections in infancy, exertional fatigue and cyanosis from 12 years, and an episode of right heart failure 2 months earlier. The faculty used the history to discuss the meaning of fatigue in cyanotic heart disease, the natural history of VSD and pulmonary stenosis, and how to arrive at a unifying diagnosis; the examination, ECG and chest X-ray were then reviewed. The candidate's diagnosis of VSD with pulmonary atresia and MAPCA-dependent circulation was supported by the echo report, and the discussion closed with pre-operative imaging, surgical risks, conduit outcomes, transcatheter pulmonary valves and growth stents. The heart failure episode was acknowledged as not fully explained.

Case
15-year-old girl from West Bengal; feeding difficulty from 1 month and recurrent upper respiratory infections until 4 years; exertional fatigue and cyanosis (NYHA II) from 12 years; facial puffiness, pedal edema and deepening cyanosis 2 months ago; now NYHA III; SpO2 70% in all limbs; single S2, continuous murmur over the left back.
Diagnosis discussed
Situs solitus, levocardia, cyanotic congenital heart disease with reduced pulmonary blood flow: VSD with pulmonary atresia, MAPCA-dependent circulation suspected (echo: large conoventricular VSD with aortic override and moderate AR); CCTGA with VSD and pulmonary atresia kept as a differential.

Teaching points

  1. Include all recent cardinal symptoms, such as the right heart failure episode, in the presenting complaints, and state the presence or absence of spells and squatting in a cyanotic child.
  2. Fatigue reflects an inability to increase cardiac output to the body's needs; most cyanotic congenital heart diseases do not have reduced systemic flow, so check whether the patient's 'fatigue' actually means dyspnea.
  3. Most small VSDs close spontaneously; subpulmonary doubly committed, inlet and AV-canal-type VSDs generally do not close.
  4. Natural history pathways of a VSD include spontaneous reduction or closure (septal aneurysm, aortic cusp prolapse), AR, endocarditis, Eisenmenger syndrome and Gasul phenomenon; the last 2 can make a VSD patient cyanotic.
  5. A patient who has been offered surgery is unlikely to have Eisenmenger physiology; try to reach a single unifying diagnosis rather than a list of loosely fitting possibilities.
  6. Heart failure from MAPCAs is acceptable in infancy, not in an older child; about 60% of collaterals are said to become stenotic over time, which deepens cyanosis.
  7. PDA and MAPCAs can coexist but usually not on the same side; with non-confluent branch PAs, one lung may be PDA-supplied and the other MAPCA-supplied.
  8. CT defines PA confluence, size and MAPCA supply but not haemodynamics and may miss additional VSDs; cath gives MAPCA pressures, and a pulmonary vein wedge angiogram can show thread-like central PAs.
  9. After an RV-PA conduit, about half of patients need reintervention within 5 to 10 years for conduit stenosis or regurgitation; transcatheter valves such as Melody, Myval and Harmony can be placed in a failing conduit.
  10. Define the apex beat as the lowermost and outermost point and name a single intercostal space.
Edited transcript 183 paragraphs · 5,704 words

00:00:03Candidate[Chief complaints:] fatigue for the last 3 years and cyanosis for the last 3 years. Since the history started from her infancy, I would like to start from birth. My patient was born at term by LSCS for cephalopelvic disproportion at a hospital in West Bengal, with a birth weight of 2.3 kg. She cried immediately at birth and was by her mother's side immediately after birth. The mother was discharged from the hospital on day 7 because of her LSCS, the baby went home on day 7, and there were no neonatal issues.

00:00:38The mother noticed difficulty in feeding from one month of age onwards, which was intermittent and gradually resolved over the next 3 to 4 months, but it was not associated with any suck-rest-suck cycle, forehead sweating or poor weight gain. As per the mother, the patient started developing recurrent episodes of fever, cough and cold from 7 to 8 months of age, for which she consulted nearby and was given oral medication. Each episode would be relieved with oral medication over 5 to 7 days, requiring no hospitalisation, suggestive of URI-type infections. For the above complaints the patient was advised a cardiologist consultation at 1 year of age, but due to financial constraints she was never taken, as that would require travel to a city.

00:01:26These respiratory infections subsided after 4 years of age, and the patient remained fairly asymptomatic with normal activity as per the mother. At 12 years of age the patient started experiencing exertional fatigue, insidious in onset. It was initially noticed on climbing 2 flights of stairs when her classroom was shifted; she used to sit down and rest for a while, after which she would improve. This was quantified as NYHA class II. She was taken for consultation locally after 3 to 4 months of similar complaints; she was told to have desaturation on routine examination and was prescribed some oral medications for 3 to 4 months, and was advised a cardiologist consultation. But again, the patient was not taken for a cardiology consult. She remained in NYHA class II, restricted her physical activity to as minimal as possible, and they did not do any further follow-up.

00:02:32Two months back, now that she is 15 years old, the patient developed facial puffiness with pedal edema for 10 days, insidious in onset and gradually progressive, with worsening fatigue on exertion and deepening of cyanosis, for which she was hospitalised locally for 7 days. She initially received IV injections for 3 to 4 days, after which she was symptomatically better and her puffiness and pedal edema subsided. She was started on oral medications, discharged after 7 days, and advised to consult a cardiologist for further evaluation. For the consultation she was taken to a city one month later, where she underwent a cardiac evaluation, was told she had a complex heart disease, and was advised further evaluation at a higher centre. For the same, the patient's attenders brought her to Sathya Sai Hospital, and after evaluation here she was told she had a hole in the heart, with heart disease requiring surgery, and was admitted 2 days back for further evaluation.

00:03:41Currently she is on oral medication and remains in NYHA class III. There is no history of prolonged fever or joint pain; no history of syncope, presyncope, chest pain or dyspnea on exertion; no history of limb weakness, headache, blurring of vision, seizures, focal deficit or stroke-like episodes. The past history I have already covered. Medication: she is currently on oral medication, one tablet every day, 2 tablets. Recently she has been started on another tablet, 3 days back, for her skin lesions.

00:04:14She is the first-order child, born at term of a non-consanguineous marriage by LSCS, with no significant neonatal history. The maternal history was also insignificant, with an uneventful pregnancy. Family history: her father was an alcohol addict, and hence her parents separated when she was 11 months old. Her mother remarried when she was 7 years old, and she has another sibling who is 5 years old and asymptomatic. They live in a one-room pucca house as a family of 4 members: stepfather, mother and one sibling. The stepfather is a mechanic and has studied till 12th standard; the mother has studied till 10th standard and is a housewife. They belong to the lower socioeconomic class by the modified Kuppuswamy scale.

00:05:01Developmental history: as per her mother, she attained her developmental milestones at the appropriate age. She has average scholastic performance, but due to her illness she has been unable to attend school regularly in the past 2 months, due to worsening fatigue, and is unable to concentrate on studies, as per the patient. Immunisation: she has been immunised as per the national schedule till 5 years of age. Personal history: she has not attained menarche; normal bowel and bladder habits; no addictive habits; mixed diet.

00:05:40FacultyJust summarise the history.

00:05:48CandidateSo she is a 15-year-old female with feeding difficulty noticed from one month of age, which subsided after 3 months; a history of recurrent URI episodes in infancy lasting up to 5 years, during which she was advised a cardiology consultation but was not taken due to financial constraints. She remained fairly asymptomatic till 12 years of age, when she started experiencing exertional fatigue, NYHA class II, with cyanosis diagnosed at 12 years of age, and was advised cardiology evaluation; but due to financial constraints again there was no further evaluation. Two months back she was admitted with facial puffiness, pedal edema, worsening fatigue and deepening cyanosis, suggestive of right heart failure, after which she was advised a cardiology consultation. Recently she has been diagnosed to have a congenital heart disease for which she has been advised surgery, and she is currently admitted for further evaluation.

00:06:45FacultyWhen you presented the history, you said only fatigue and cyanosis, but you didn't include the recent right heart symptoms in the presenting complaints.

00:06:52CandidateIn the presenting complaints, as you mentioned, Sir.

00:06:56FacultyYou should present all the cardinal symptoms. What are the cardinal symptoms?

00:07:08CandidateSir, heart failure is a part of it.

00:07:12FacultyNo, what are the cardinal symptoms which you present? Like you said fatigue; palpitations, chest pain, angina, syncope, fatigue, dyspnea. Okay.

00:07:28So, are you a pediatrician or an adult cardiologist? Pediatrician? You can make it out from the history. It's a very good history. So the important thing is: what do you understand by fatigue? Why does a cardiac patient get fatigue? Basically they become tired after exertion. Why? What is the haemodynamic principle behind fatigue? You all understand dyspnea: dyspnea means increased LVEDP, increased pressures. So what is the haemodynamic correlate of fatigue? What is the haemodynamic abnormality which leads to fatigue? You said reduced cardiac output. What are the most common valve lesions producing fatigue?

00:08:08CandidateAortic stenosis. Pulmonary stenosis.

00:08:15FacultyLow output state, low cardiac output. Aortic regurgitation? Classically, out of the valve lesions, fatigue means mitral regurgitation. So do you think a mitral regurgitation patient has low cardiac output? What is the basic haemodynamic issue when a patient complains of fatigue: low cardiac output, or something else?

00:08:40Basically they are not able to increase it. Yes: the inability to increase the cardiac output according to the body's needs, that is fatigue. Most congenital cyanotic heart diseases do not have reduced systemic blood flow. That is why, when you say somebody has significant fatigue, you have to be really careful. The patient may say fatigue but could mean dyspnea; they will complain of it like fatigue. Be very careful about what word they use. It's not a common symptom of cyanotic heart disease; that is what you should be clear about.

00:09:10One more important thing. You told a lot of things in the history, but the words spell and squatting were missing. I thought you would immediately bring out that there was no history of spells or squatting, but you said an equivalent was present. You said she used to sit down while climbing 2 flights of stairs. Was it something like squatting?

00:09:32CandidateIt is, Sir.

00:09:32FacultySo these things will definitely help you, because your history is very vague in that way: whether it is increased Qp that turned into [unclear] physiology, or PAH physiology, or what, is not very clear. So you have to try to pick up the important findings to take you somewhere. So she had breathing difficulty at 1 month and subsequently feeding difficulty; what does that suggest?

00:09:58CandidateInitially, if there had been a significant history of a suck-rest-suck cycle or forehead sweating, that could have implied an increased pulmonary blood flow situation. Sometimes even pink TOF can have a presentation with heart failure in the initial few months; about 20% of pink TOF can present like this.

00:10:19FacultyNot TOF, I don't think so; predominantly pulmonary atresia can present like this. TOF presenting like heart failure is not 20%, definitely.

00:10:29CandidateBut we can have initial heart failure features which then subside over time with progressive RVOTO. Generally they start like a VSD, and later on they become like TOF with progressive RVOTO. The parents never noticed cyanosis in childhood. As per the mother, they never noticed cyanosis in childhood, and the child also never complained of anything till 12 years of age. Till 12 years her classroom was on the ground floor and first floor, so she never noticed that much fatigue; she used to play with her peers and do other activities. Only after 12 years of age did they start noticing it significantly. It was on less than ordinary activity, like just climbing 2 flights of stairs: she used to become fatigued and used to take rest after that.

00:11:14FacultySo from most of the things you have told, we can't differentiate whether she had failure to thrive or not, whether she had recurrent LRTI or not, because there has been no significant history. What is the definition of recurrent LRTI?

00:11:26CandidateMore than 2 episodes of pneumonia requiring hospitalisation or IV medications in a year would be significant.

00:11:40FacultyNo. The IAP has changed the definition.

00:11:50CandidateMore than 3 in a lifetime, or?

00:12:02FacultyUsually severe pneumonia would require hospitalisation. So this is recurrent LRTI, not recurrent severe pneumonia. Why do these patients develop recurrent respiratory infection?

00:12:10CandidateIncreased pulmonary blood flow leads to pulmonary congestion that would predispose these patients; also there would be reduced immunity that would predispose them.

00:12:25FacultyAt that time cyanosis was not noted. Nobody said that at one and a half years or 2 years the child was cyanotic. So suppose somebody gets increased-Qp-like symptoms; what can happen to that patient? What is the natural history of, say, a moderate VSD over time? What will happen?

00:12:46Initially, the most common thing in such a patient, a 6-month-old presenting with recurrent infection and failure to thrive, is going to be a moderate VSD more often than not. What is the natural history of a moderate VSD over time?

00:13:00CandidateLike a normal child, they could also have recurrent URIs as a normal child would. But in a VSD, over age it would start becoming more restrictive with the age of the patient. So one is reduction in the size of the VSD.

00:13:14FacultySo what proportion of VSDs reduce in size?

00:13:17CandidateSir, up to 80% of perimembranous ones, small, moderate or large.

00:13:20FacultyThis 80% you are telling is for small VSDs; the majority of small ones will close. What about moderate ones? What about large ones?

00:13:31CandidateThey usually reduce in size, 20%. Roughly around 10% of large ones may reduce in size and become smaller over time, but the majority of them don't close.

00:13:38FacultyThey don't close. But which are the VSDs that don't close at all?

00:13:43CandidateMultiple apical VSDs may not close.

00:13:47FacultyOkay, which ones? Large perimembranous VSDs may close, but proportion-wise it is very less. Which VSDs generally don't close? Subpulmonary, doubly committed VSDs don't close; inlet VSDs also don't close. Rarely an inlet muscular VSD may close, but inlet VSDs don't close. AV-canal-type VSDs don't close. But in some cases the relative VSD size becomes less because of [unclear]. The ATL [unclear].

00:14:25So one is reduction in the size of the VSD. What else will happen?

00:14:30CandidateSeptal aneurysm formation reducing the size of the VSD, then septal tissue. These are the various mechanisms: aortic cusp prolapse, septal aneurysm, tissue closure.

00:14:40FacultyWhat are the other natural history pathways of a VSD?

00:14:44CandidateMany patients might develop AR with the VSD. One is that the VSD becomes restrictive and starts developing AR, aortic cusp prolapse with AR.

00:14:53FacultyOkay, any other, apart from aortic regurgitation?

00:14:56CandidateTR may develop rarely; it can present like a Gerbode defect.

00:15:01FacultyOkay, what else? You discussed it just before: infective endocarditis. Eisenmenger is a far more common one, where a large VSD remains large and develops Eisenmenger physiology. The other one: Gasul phenomenon can happen. So out of these, which make the patient cyanotic? Gasul phenomenon and Eisenmenger. These are the 2 things that are possible if we start with a VSD as the starting point. If this is a VSD, the 2 things that can produce cyanosis over time are Gasul phenomenon or Eisenmengerisation. Those are the 2 possibilities: initially it started out like a pink physiology, and now it is manifesting as a cyanotic setting.

00:15:40Can this be a complex congenital heart disease to start with, per se? No?

00:15:44If it is not a simple VSD: an admixture physiology with good saturation, now Eisenmengerisation; or some single ventricle with PS or some other form. Initially the PS gradient may be lower, and over time the PS gradient can progressively increase, especially if it is infundibular narrowing; that is all well known. For example, you start seeing a patient with complex DORV, VSD, PS where the gradients initially are only 30 to 40, but over time the gradient keeps on increasing. That is one possibility.

00:16:12One more: could it be a trilogy, like ASD with progressive PS, now becoming cyanotic? Do you think that is right? Suppose somebody with PS develops significant symptoms at, say, one and a half years; what would the natural history have been?

00:16:26CandidateIt would have been earlier, far worse.

00:16:29FacultySome PS becoming so symptomatic at, say, 2 and a half years; such a course is not generally tenable. What happens to, for example, a mild PS you are following, a moderate PS, or a severe PS? What happens to mild PS? What is the natural history?

00:16:43CandidateUsually the majority of mild PS, around 40 to 60%, remain mild.

00:16:46FacultyCan they go down also?

00:16:46CandidateThey can, Sir.

00:16:51FacultyWhat is that called? What is vanishing PS?

00:16:56CandidateThere is an entity called vanishing PS: with growth, the PA dilates and the gradient comes down.

00:17:04FacultySo among these, what is the possibility? And one more thing: you started with something acyanotic, which had heart failure-like symptoms, then cyanosis set in, and now heart failure has also set in. So which one of them will produce heart failure also?

00:17:19CandidateTOF with pulmonary atresia with MAPCAs can have heart failure.

00:17:24FacultyBut MAPCAs causing cyanosis and heart failure don't go hand in hand. Generally, TOF with MAPCAs producing heart failure is in which age group? Early infancy. In the neonatal or infantile age group it is acceptable, not in a 10-year-old or older.

00:17:40CandidateEisenmenger can cause right heart failure.

00:17:40FacultyBut the patient has been called for surgery. That is one point that goes absolutely against Eisenmenger. On that basis you can throw away Eisenmenger. You are left with either a VSD which has developed Gasul, or a complex congenital heart disease where progressive increase [in obstruction] has happened. What do you want to put it as?

00:18:02CandidateI will go with VSD PS.

00:18:02FacultyWith VSD PS. So why heart failure in VSD PS? In VSD PS, the initial presentation would have been with heart failure and now progressive cyanosis, and right heart failure now. So it is very unlikely: a patient who started off with a VSD, developed Gasul phenomenon, and now has developed heart failure. That is almost unlikely, but then there has to be some complex congenital heart disease. Now, what has produced this heart failure?

00:18:31CandidateOne could be the deepening cyanosis itself, hypoxia causing ventricular dysfunction presenting as heart failure; or AVVR.

00:18:41FacultyAVVR, or associated arrhythmia; although there is no history of AVVR, that can also present. Although there are no symptoms of it. So even though everything looks very complicated, it is very simple: try to make it as simple as possible and try to come to some unifying thing, so that it is easy to connect the dots. Otherwise such a history is very difficult to connect.

00:19:09Before you go to 'the patient was examined in supine': finally, what is the diagnosis from the history?

00:19:15CandidateFrom the history, I would still keep a complex cyanotic congenital heart disease with reduced pulmonary blood flow, now presenting with right heart failure, with possibly [unclear].

00:19:31FacultyThat is one possibility. What are the other possibilities? We discussed a lot of other things; you can keep all of them as differentials. Would you think of Ebstein, with heart failure?

00:19:38CandidateSir, for Ebstein to present in heart failure at this age would be very unusual. It would present either later with heart failure, or initially with severe cyanosis. She is in the adolescent age group; that is very unlikely for her.

00:19:58FacultyOne more thing, just for teaching everybody: what causes recurrent LRTI in a patient with a VSD? What is the basic mechanism behind recurrent LRTI?

00:20:09CandidateThere is increased pulmonary blood flow.

00:20:09FacultyHow does that translate into recurrent LRTI?

00:20:13CandidateBecause of increased pulmonary blood flow there are dilated bronchial arteries; the bronchial arteries get dilated.

00:20:21FacultyWhere do the bronchial arteries arise from? From the aorta. So they can't get dilated. So what is getting dilated? What is happening? Can anybody answer this?

00:20:36Again, like many things, it is not very well understood why this happens, but some of the things are...

00:20:43AudienceMicro-atelectasis of the alveoli.

00:20:43FacultyYes, micro-atelectasis; that is what they say. Again, 4 or 5 theories are written, so you read about it.

00:20:59CandidateShe is conscious, oriented to time, place and person, thinly built and moderately nourished. Height is 150 centimetres, arm span is 149 centimetres, weight is 37 kg, with a BMI of 16.4. On examination there is no facial dysmorphism.

00:21:17FacultyBMI 15.4 or 16.4?

00:21:17Candidate16.4, Sir.

00:21:23There is conjunctival congestion, deep cyanosis and pandigital grade 3 clubbing; no lymphadenopathy or edema. Discoid hyperpigmented skin lesions are noted on both forearms, probably tinea infection, for which she was started on oral medication 2 days back. Temperature is normal on palpation. Pulse is 75 beats per minute, regular in rhythm, normal volume and character, no radio-radial or radio-femoral delay, and all peripheral pulses are well felt. Blood pressure in the right upper limb is 100/76, left upper limb 98/76, and both lower limbs 110 systolic. Respiratory rate is 18 per minute, abdominothoracic type. Saturation is 70% in all 4 limbs. JVP is normal, not elevated, in the sitting position at 30 degrees, with normal waveforms, and abdominojugular reflux is negative.

00:22:23Faculty[inaudible]

00:22:25CandidateNormal, ma'am.

00:22:29Cardiac examination, inspection and palpation: the trachea is central, the chest is bilaterally symmetrical, no precordial bulge. The apex beat is visible and confirmed at the left 4th and 5th intercostal space, diffuse, RV type of apex.

00:22:40FacultyIt cannot be 4th and 5th; you have to be specific. So what is the definition of the apex? All these questions will come. Yesterday we said it is the lowermost and outermost point. So we cannot have 4th and 5th. You have to say 5th.

00:22:58Where is it, in the 5th intercostal space?

00:22:58CandidateIn the midclavicular line.

00:23:02FacultyMidclavicular line. Character? Are you telling inspection only, or inspection and palpation combined?

00:23:09CandidateCombined. Diffuse RV type of apex with lateral retraction [unclear]. No parasternal heave, no palpable thrills or heart sounds, no visible scars, sinuses or engorged veins. On percussion, the left heart border corresponds to the apex and the right heart border is retrosternal. Liver dullness is percussed at the right 6th intercostal space, with a liver span of 7 centimetres. A normal tympanic note is noted on the left side. The left second intercostal space is resonant.

00:23:37Auscultation: S1 is normal, S2 is single with a loud A2, no S3 or S4. There is an ejection click well heard at the right second intercostal space. A non-phasic continuous murmur, grade 2/6, is heard at the back with the diaphragm of the stethoscope, with no respiratory variation, predominantly on the left side of the back. No other murmurs.

00:24:21FacultyWhy do you say it is A2?

00:24:25CandidateSir, it is best heard at the apex and [inaudible].

00:25:05FacultyYou have a continuous murmur on the left side of the back. So what does it suggest?

00:25:10CandidateMost probably it could be a stenotic MAPCA, Sir. In this patient, where there is an absent P2, it could be pulmonary atresia, where there is MAPCA-dependent circulation, and now the MAPCAs are becoming stenotic.

00:25:24FacultyWhat is more common, PDA or MAPCA?

00:25:28CandidateLeft-sided PDA. But a PDA murmur I would probably also have got in the anterior part, Sir, the left second intercostal space, and there was no murmur heard there. So I would say it is probably a MAPCA, Sir, which is becoming stenotic now.

00:25:46FacultyMAPCAs becoming stenotic is the reason for the worsening; that is what you say?

00:25:46CandidateYes, Sir, for the deepening of cyanosis.

00:25:56FacultySo suppose we now think of pulmonary atresia as the first diagnosis.

00:26:00CandidateThe history fits into the pulmonary atresia situation. With pulmonary atresia and MAPCAs, initially she should have presented with heart failure features, probably, which is not very significant in this patient. But over time about 60% of the collaterals are known to become stenotic, so that can present with deepening of cyanosis as the patient ages. So the history is overall consistent with VSD pulmonary atresia.

00:26:26FacultyBut generally, you said towards one and a half years the symptoms became worse; it generally happens in infancy, most probably. And what about heart failure? Why should the patient have heart failure 3 months back?

00:26:40CandidateI still feel that because of the deepening cyanosis, the significant hypoxia, or associated anemia, is causing the heart failure, for which she needs to be further evaluated, because her saturation is 70% overall, Sir; that is deep cyanosis.

00:26:56FacultySo these good-flowing MAPCAs initially: can they lead on to pulmonary hypertension?

00:26:59CandidateYes, Sir, segmental pulmonary hypertension can happen. That could still be a possibility in this patient, which would require further evaluation. She has been told she would require surgery, but she is admitted now for further evaluation. So maybe additional imaging or a cath study can be planned to look at the MAPCAs.

00:27:36Usually they have a vertical kind of ductus in pulmonary atresia, whereas in the PA-IVS kind we would have a regular ductus.

00:27:50Like from the arch, Sir: the undersurface of the arch, or it could also arise indirectly from another branch of the arch.

00:27:55FacultyIt depends on the arch also. In the case of a right arch, where will it arise?

00:28:02CandidateIf it is a right arch, this could be possible, Sir. If it is on the left side, it is still from the undersurface of the arch, or from the brachiocephalic, just below the origin of the brachiocephalic or left common carotid; not the common carotid, the subclavian. Left subclavian.

00:28:26FacultyCan MAPCAs and a PDA coexist in the same patient?

00:28:26CandidateUsually it is uncommon, but they can still coexist.

00:28:32FacultyBut usually they don't coexist on the same side. Usually it is the PDA on the left and MAPCAs on the right side.

00:28:40CandidateIf there are non-confluent branch PAs, which is a possibility in this patient, then there could be a possibility that one PA is supplied by the PDA and the other is supplied by a MAPCA.

00:28:50FacultyWhat are the types of MAPCAs?

00:28:53CandidateSir, embryologically, Rabinovitch has classified them as bronchial collaterals, direct and indirect. Direct MAPCAs are usually the earliest to appear; they appear at 3 to 4 [unclear] of gestation and they have a hilar anastomosis; they arise directly from the aorta to the pulmonary arteries. The bronchial ones are from the bronchial arteries; they usually appear at [unclear] of gestation and have an intrapulmonary anastomosis. The indirect ones are the last to appear in gestation, and they have an extrapulmonary anastomosis, from other branch arteries of the aorta.

00:29:38FacultySo tell us the final diagnosis.

00:29:38CandidateSitus solitus, levocardia, with cyanotic congenital heart disease with reduced pulmonary blood flow, most probably VSD pulmonary atresia with MAPCA-dependent circulation. As another differential I still kept CCTGA, VSD, pulmonary atresia, although the possibility is [low] because there is no left [upper border] aorta, but I still kept it as a possibility. In normal sinus rhythm, with no features of current heart failure or infective endocarditis, in NYHA class III, now admitted for further management.

00:30:14FacultyIs there any evidence of ventricular dysfunction in this patient? What evidence would you have looked for?

00:30:19CandidateIf a sustained apex is there, that could suggest there is dysfunction, or acute heart failure is also there. Clinical signs are actually not there currently. There is no S3, there is no cardiomegaly, no tachycardia or anything, and other murmurs are also not there.

00:30:39FacultyOkay. What is against pulmonary atresia with intact septum in this case?

00:30:42CandidateParasternal heave is not there, Sir. And the apex becomes LV type.

00:30:57Because the aorta is more anterior. [inaudible]

00:31:2112-lead ECG at half standardisation, with right axis deviation, axis around +120. Normal sinus rhythm. T-wave axis is normal.

00:31:45Faculty[unclear] in V1?

00:31:49CandidateRSR' pattern, incomplete RBBB, but there is a sudden transition in V2.

00:31:54FacultyFirst, is there RVH in V1?

00:31:54CandidateNo, Sir, there is no RVH feature in V1, Sir. RV forces are not there.

00:31:58FacultyYou start with RVH, then you look for early transition. What about the PR interval?

00:32:10CandidateThe PR interval is around 160 milliseconds, Sir.

00:32:10FacultyOkay, that is acceptable for this age.

00:32:19CandidateNo LV forces as such; [no] volume-overloaded LV.

00:32:22FacultySo are we dealing with some simple VSD here, or something more problematic?

00:32:25CandidateMore complex probably, Sir.

00:32:29FacultyYes. No features of RVH in V1. Your differential diagnosis was CCTGA: any features? No Q waves; septal Q waves in V1 and V2 are also not there.

00:32:54X-ray.

00:33:00CandidateChest X-ray PA view. Situs solitus, levocardia, with an LV type of apex. Absent pulmonary bay. Cardiac size: no cardiomegaly, CT ratio around 0.5. Concave pulmonary bay, which goes with pulmonary atresia. There is a significant ascending aortic dilatation shadow noted on the right side. Probably a left aortic arch; the aortic arch indentation is on the left side of the trachea.

00:33:44FacultyIs there any differential vascularity? That is what we are interested in.

00:33:49CandidateNo, Sir. As you said, it is possible, but it is not obvious in this one, Sir.

00:33:54FacultySo what are the other things you should look for in pulmonary atresia, once you know the diagnosis is pulmonary atresia? Generally you can find nodular findings. Another thing you should look for is differential vascularity; one cause can be Eisenmenger, another could be low flow. The other important thing is high origin of the pulmonary artery. What is known as the waterfall sign? What is the waterfall sign? In truncus, the RPA will appear to arise from the top. The same thing can happen here: suppose one is arising from the aorta, or from a big collateral, it can look like that. So all those things you should look for here. You are not seeing the central PA at all?

00:34:35CandidateNo, Sir. RPA and LPA are not seen. No obvious differential vascularity.

00:34:44RA [unclear] enlarged, Sir, right atrial enlargement.

00:34:53FacultyEverything fits, but her heart failure we are not able to explain. That is something we are not able to explain: why she developed heart failure.

00:35:04Okay, how will you further evaluate this patient? Anyway, you will do the echo. Maybe somebody can read out the echo report, because we are running out of time. How much time is left? Can somebody read out the echo report?

00:35:27Okay, you can see there is a large conoventricular VSD with aortic override, okay, mostly aorto-mitral continuity. There is moderate aortic regurgitation. Where is the AR going to?

00:35:40CandidateIt's directed towards the RV, Sir, most commonly.

00:35:50FacultySimple VSD pulmonary atresia.

00:35:56So what are the things you should look for?

00:35:56CandidateConfluent pulmonary arteries, and MAPCAs, whether they are communicating or non-communicating types of MAPCAs.

00:36:04FacultySo will you do a cath, or will you do a CT? Which one is preferred?

00:36:08CandidateSir, CT would give us information about all these details these days. It will also give us the confluence and the sizes of the confluence, and it can also tell us the total area of the MAPCAs. For unifocalisation: whether all segments are supplied by the MAPCAs, whether the MAPCAs are essential or non-essential, whether there is a dual supply or not; that is the information you can get. If we have large MAPCAs which are non-stenotic, then we can do an additional cath to look at the MAPCA pressures, to see if they are at aortic pressure.

00:36:40FacultyIs the coronary pattern important in this?

00:36:42CandidateYes, Sir, coronary, because an RV-to-PA conduit has to be put, Sir.

00:36:45FacultySo then it is not important. Whatever the coronary, they can put a conduit. If it is a membrane, [unclear] becomes important; they have to cut it.

00:36:51CandidateYes, Sir.

00:36:55FacultyAnyway, it is better to know the anatomy; there is no doubt about that. Which information is not given by CT? Out of the information that a surgeon needs for operating on this kid, what information will not be given by a CT? Especially haemodynamics are not given by CT. Okay, apart from haemodynamics? A simple one.

00:37:18CandidateAdditional VSDs might be missed on CT.

00:37:18FacultyThey are better seen on echo, or in the cath on the LV angiogram. And if we are not able to see the [central PAs] by CT also, not very clear, what other modality can you use to bring them out in the cath lab?

00:37:38CandidateSir, if we have a PDA, or if it is not seen...

00:37:41FacultyAortogram you have done, and the aortogram is also not showing it; CT is not showing it. There is some suspicion that there is a thread-like PA.

00:37:48CandidateA pulmonary vein wedge angiogram can be attempted, Sir, to see the [pulmonary arteries].

00:37:53FacultyPulmonary venous wedge angiogram. What are seagull pulmonary arteries?

00:38:01CandidateThese are the thin, narrow pulmonary arteries seen in pulmonary atresia.

00:38:01FacultyYes, on the angiogram you can see in some cases hypoplastic, very small, thin pulmonary arteries, looking like a seagull flying.

00:38:15What are the complication rates of VSD pulmonary atresia surgery?

00:38:19CandidateSir, usually, because these patients are cyanotic, there could be an increased risk of bleeding during surgery. Also, this child could have low cardiac output during surgery and in the post-op period, and sometimes there would be difficulty in localising the MAPCAs and in unifocalisation. There is a school of thought that they might prefer a staged procedure rather than a complete repair with unifocalisation in a single stage. These are a few complications.

00:38:46FacultySo, long-term issues: the patient has undergone a conduit repair. What are the long-term issues with the conduit?

00:38:55CandidateThere is significant PR, then significant RV dilatation, and that could lead to arrhythmia and RV dysfunction.

00:39:03FacultySo what is the event rate like? Suppose somebody has put in a conduit at 13 years of age; what is the event rate like? How is the event-free survival? Let's say you have to prognosticate this to the parents. Parents are going to ask, how is my kid going to be? So what is the event rate at 10 years or 5 years? What are the data on this?

00:39:20CandidateWith a conduit, 50% would require a reintervention.

00:39:22FacultyWhat percentage? 50% would require it in what time period?

00:39:24CandidateBy 5 to 10 years.

00:39:31FacultySo 50% at 10 years; a little high, but yes. And what happens with the conduit? It is a degenerated valve, degenerated, calcific. Many times we have seen PS and PR both can happen. What can you replace them with? Suppose there is conduit dysfunction, can you replace it with a valve?

00:39:50CandidateWe can try a transcatheter valve.

00:39:55FacultyWhich are the valves recommended for post-conduit repair?

00:40:01CandidateMelody.

00:40:01FacultyMelody is no longer marketed now; I think they have stopped marketing it. Melody was first started for valved conduits. Myval: we are also using Myval. And Harmony also has been tried; Harmony and all these valves can be placed in a conduit. What is the cost of a conduit? It is important. Are any conduits made here? Where do they get the conduit, actually?

00:40:36CandidateWe have a conduit bank, homografts taken from cadavers and prepared.

00:40:36FacultyNo, there is a conduit bank at Jayadeva. What about the importing cost?

00:40:48Since you are answering very well: what is a growth conduit or a growth valve? Is there anything the US FDA has approved recently, within one or 2 months? What do you understand by growth stent, growth valve, growth conduit? Something which can be redilated as the child grows. Are you aware of growth stents?

00:41:11CandidateYes, Sir.

00:41:11FacultyWhat are the stents? What stents are now available in India which can be dilated up to a certain number? What is the most happening thing in pediatrics now? Everywhere people are putting it in 4-month-olds. What is the name of the stent which is US FDA approved? Minima. What Minima? Okay.

00:41:43Sir, we could just continue with the next one. They are ready. I thought we would just squeeze in one more case after the next one. Thanks for the wonderful case. Can we have your case next? Thank you. I thank all the teachers on the dais. We will have the next congenital case, and try to squeeze one more case after that. I think she really did very well. A big hand; really very good. Thank you.

00:42:18The only thing is that the history was a little bit [long]; you have to edit it before presenting and put it in a very chronological order, so that the examiner will not get confused.

19

Day 2 · 18-Oct-2026 · 14:57 hrs · 48 min

VSD with Aortic Regurgitation and RSOV Differential

  • Ventricular septal defect
  • Aortic regurgitation
  • Ruptured sinus of Valsalva
  • Functional classification
  • Shunt quantification
  • Murmur analysis
  • Chest X-ray
  • Echo

A DM/DrNB candidate presented a long case of a 9-year-old boy with increased precordial activity since early infancy, exertional palpitations for 4 to 5 years and recent fatigue, admitted for surgery. The examiners pared the candidate's broad list of volume-overload differentials down to realistic possibilities using natural history, and used the history to discuss functional classification systems. After a clinical presentation of collapsing pulse, peripheral signs of aortic regurgitation, a left second-space systolic thrill and a long early diastolic murmur, the candidate revised the systolic murmur from ejection to pansystolic and settled on a VSD (clinically subpulmonic) with severe AR. Discussion then covered shunt quantification, the S3 in AR versus MR, the ECG, X-ray and echo, and the need to keep ruptured sinus of Valsalva (RSOV) as a differential, with echo showing a deformed sinus and a possible windsock.

Case
9-year-old boy, third child, son of a daily-wage labourer; increased precordial activity since early infancy, exertional palpitations 4–5 years (stated NYHA class 3), fatigue 5 months; on two medications (one to slow the heart rate, a diuretic) for 6 months; admitted for surgery.
Diagnosis discussed
Congenital acyanotic heart disease, situs solitus, levocardia, VSD (clinically subpulmonic) with severe aortic regurgitation, in sinus rhythm, not in heart failure; echo showed a VSD with AR and a deformed sinus with a possible small windsock/RSOV, so RSOV was kept as a differential.

Teaching points

  1. Infantile precordial activity in an acyanotic child is most commonly due to a VSD or PDA; use natural history to discard unlikely differentials (e.g. bicuspid aortic valve with AR or congenital MR presenting in infancy).
  2. A moderate PDA can remain moderate and present with volume-overload palpitations at 9 years without heart failure or Eisenmengerisation.
  3. Commit to one NYHA class; NYHA class is less reliable in children because they limit their own activity and inter-observer variability is higher.
  4. The CCS angina classification differs from NYHA in defining activity (blocks, flights of stairs), stating that strenuous activity produces angina in class I, and the later addition of CCS 0.
  5. A systolic thrill in the left second space is not explained by aortic stenosis; consider subpulmonic VSD, valvular or infundibular pulmonary stenosis, or increased pulmonary flow.
  6. A pansystolic murmur starts with S1 and occupies isovolumetric contraction; an ejection murmur starts after it, often with an ejection click.
  7. Subpulmonic VSD is more likely to develop AR, but because perimembranous VSD is commoner overall, a VSD with AR may still be perimembranous.
  8. Classical clinical shunt grading in VSD: LV S3 and an apical MDM together suggest Qp:Qs of about 2:1, one of them about 1.5:1, neither suggests a small VSD or a shunt reduced by pulmonary hypertension.
  9. S3 in AR indicates LV dysfunction; in MR it may reflect severe MR (increased flow across the mitral valve) without LV dysfunction.
  10. In any VSD with AR, especially with a superficial thrill or uncertain murmur timing, keep RSOV as a differential diagnosis; even after cath, CT and echo the distinction can be difficult.
Edited transcript 216 paragraphs · 5,438 words

00:00:04CandidateThe child was brought with complaints of increased precordial activity noticed since early infancy, palpitations, as told by the patient, for the last 4 to 5 years, and fatigue for the last 5 months. Since the complaints start from early infancy, I would like to present from birth.

00:00:33The child is the third of the siblings. He was spontaneously conceived, and the pregnancy was booked and immunised. Antenatally, there was no history of fever with rash and no history of gestational diabetes mellitus. There was no history of drug intake other than the ones prescribed by the gynaecologist. He was born by normal vaginal delivery in hospital, at a PHC, and after examination the baby was told to be normal and discharged on day 2.

00:01:05However, in early infancy, the mother noticed increased precordial activity, but it was not associated with suck–rest–suck cycles, growth retardation, intermittent feeding or bluish discoloration. Birth weight was 3.5 kg, and according to the mother he was growing well.

00:01:27FacultyA 3.5 kg birth weight, and they are coming from a village setting. What all things will you consider?

00:01:35CandidateGestational diabetes mellitus. But there is no history.

00:01:43FacultyNormally also 3.5 kg is common, without gestational diabetes. OK. Can it be transposition of the great arteries?

00:02:01Yes, go ahead.

00:02:01CandidateSince early infancy, the mother noticed increased precordial activity, and it has remained the same. Other than the increased precordial activity, the mother also reports that he gets excessively sweaty, even when the weather is relatively cold. But there are no other features suggestive of heart failure in early infancy. According to the parents, in early childhood his play, compared to his peers, was such that he would not get tired easily. There was no history of sweating [unclear].

00:02:46FacultySince the child is able to [unclear], sweating on exertion — you can consider [unclear] in this.

00:02:56CandidateYes, but the other history suggestive of heart failure is not there, like suck–rest–suck cycles and intermittent feeding. Those features are not there, but sweating is there.

00:03:12For the last 4 to 5 years, since the child has been able to speak, he complains of palpitations. He says they occur on walking around 200 metres, which comes to around class 2 to class 3. Once he gets palpitations, he sits for some time, and within some 5 minutes his heart rate becomes normal. The palpitations have always been associated with exertion and never sudden.

00:03:47For these initial complaints, he was shown to a local physician who, after examining the patient, said it was not related to any serious condition, and he was not told of any cardiac problem. There was no history of recurrent respiratory tract infection during that time.

00:04:06Six months back, he had an upper respiratory tract infection. During this episode he was shown to another doctor who, after examination, told them the child has congenital heart disease, and he was started on medications. According to the mother, one of the medications would make his heart a bit slower, and another medication was for increased urination. However, even after these medications the parents did not notice much improvement. Even now the patient is taking these medications after coming here, but still there is no improvement. Since there was no improvement, after one month of starting medication they went to the same doctor, who advised surgery at that time. He was told to come to Sathya Sai at that point, but because of personal reasons they came only now.

00:05:01FacultyIn which congenital diseases will diuretics be prescribed?

00:05:09CandidateVSD, post-tricuspid shunts — in these volume-overload situations. And AR. And ventricular dysfunction.

00:05:30One more thing: for the last 5 months, the mother also says the child has increased tiredness, which according to the child is more like fatigue rather than effort intolerance. He says it persists throughout the day.

00:05:50There is nothing suggestive of rheumatic heart disease in the form of joint swelling, rash, throat pain or subcutaneous swellings [unclear]. No history suggestive of recurrent LRTI episodes in childhood. There was no hospital admission other than this current admission. No history of syncope, presyncope, altered sensorium, seizures or abnormal behaviour. No history of fever. No history of change in urine colour.

00:06:23His development is normal, and he studies in the 4th standard. He is immunised till 5 years of age [unclear].

00:06:34Family history: he is born of a non-consanguineous marriage. The other two siblings are healthy; they do not have any history of congenital heart disease, and there is no history of sudden cardiac death or of syncope in the family. Social history: they live in a kutcha house, and there is overcrowding. The father is a daily-wage labourer and the mother is a housewife.

00:07:02To summarise: a 9-year-old child who was noticed to have increased precordial activity since early infancy, brought with palpitations for the last 4 to 5 years and fatigue for the last one month, who has been diagnosed as congenital heart disease and is currently admitted for surgery.

00:07:18FacultyWhat are the possibilities you think of?

00:07:22CandidateSir, with this condition I thought of a volume-overload condition, specifically regurgitant valvular lesions. The differential diagnoses are: forms of ostium primum ASD with MR; bicuspid aortic valve with AR; congenital mitral valve abnormalities; subaortic membrane with AR; VSD with secondary AR; Ebstein anomaly; or corrected TGA with [unclear].

00:07:59FacultySir, in all this, some of them are more likely than others. The purpose of giving this is to see whether you understand the natural history. It is not a problem if you don't list every diagnosis; that is not needed. You have to tell me — for example, with a bicuspid aortic valve, why would the patient have had problems in infancy? So keep to what is more likely. Suppose these are the characteristic findings: the patient has palpitations, and the patient had an infantile history. What are the more likely possibilities for an infantile history? Suppose somebody starts with precordial activity in infancy, with acyanotic heart disease — what possibilities come to your mind? Keep it simple. Don't trick yourself. You can't trick the examiners; they have seen this and heard this for 25 years now. We also tried to [unclear] examiners — it is not possible. So keep it simple. With an infantile history, what are the possibilities? Forms of endocardial cushion defect, yes; simple VSD or PDA. That is the most common. Infantile precordial activity is commonly VSD or PDA.

00:09:13CandidateCan ASD have infantile [precordial] activity, Sir? I felt that because the child had symptoms since infancy and till now does not report symptoms suggestive of Eisenmengerisation —

00:09:22FacultyA PDA can remain, suppose, moderate. A PDA that started off with some failure can have palpitations at 9 years; that is not a problem. It does not have to present with heart failure, and it does not have to present with Eisenmengerisation. A PDA can remain a PDA. A moderate PDA to start with can remain moderate; that is not a big deal.

00:09:45So suppose ASD with MR. What is against ASD with MR? An MR which is good enough to produce volume overload, palpitations and fatigue — if it is associated with an ASD, what will you find? What will happen to the shunt?

00:10:04CandidateThe shunt will increase.

00:10:04FacultySo the patient will present with heart failure — right heart failure. So that is gone. Bicuspid aortic valve with AR: why should the patient have problems in infancy? If the patient has problems in infancy, what is the natural history? What is going to happen if the patient is not operated in infancy? The one who presents in early infancy — that is not possible. How many bicuspid aortic valves have you seen come with AR in infancy? None. So that is also not possible. You said congenital MR. What is the natural history of somebody presenting in infancy?

00:10:44CandidateThey tend to do poorly.

00:10:44FacultyTerrible. Their prognosis is very bad if you don't operate on them, especially when somebody has become so symptomatic. So that is also gone. Now take it all back and give us two or three realistic possibilities.

00:11:04Can this be a simple VSD? A moderate VSD to start with. He had a moderate VSD; now what are the possibilities? It reduces in size, or Eisenmengerisation would have occurred. No — then the patient would have become blue. Why would there be volume-overload palpitations?

00:11:23CandidateAR, secondary.

00:11:23FacultyAnd some doctor has evaluated him, and he might have missed a major [unclear], which is a very prominent murmur you would have picked up. Okay, that is okay. Then what about other possibilities — can this be a simple PDA?

00:11:38CandidateYes, quite possible.

00:11:43FacultyIt can be a simple PDA in a 9-year-old, coming with volume-overload palpitations and starting to have symptoms of increased Qp.

00:11:51Another thing: in the history you said class 2, class 3. I cannot accept that from a DM student — class 2 and also class 3. Was he class 2 or class 3?

00:12:01CandidateClass 3 now.

00:12:04FacultySo that is something that is not affordable. What are the problems of the NYHA classification in children?

00:12:11CandidateFirst of all, it is objective [subjective], and second, they tend to limit their activity.

00:12:20FacultyAnd possibly there are some studies that say that in children the inter-observer variability in functional class is far higher compared to adults, because a lot of other symptoms come in. What are the other classifications that we talked about in the last class? That is okay — NYHA and the Canadian classification we talked about last class. But what other classifications do you know of apart from NYHA?

00:12:46CandidateThe WHO functional classification, which is for pulmonary hypertension.

00:12:51FacultyWhat is the difference between WHO and NYHA?

00:12:51CandidateIn WHO, syncope is there; in NYHA it is not.

00:12:59FacultySo what is put in and what is taken out? Syncope is put in. It is not that difficult — palpitation [is taken out]. What other classifications do you know of?

00:13:18AudienceThe Specific Activity Scale.

00:13:18FacultySpecific Activity Scale. Anything for AF that has been proposed recently?

00:13:25AudienceYes — the European EHRA classification for AF.

00:13:38FacultySo read about that; functional classifications, all of you should be aware of. And the Canadian — what is one block, all those things — somebody may ask you in the morning. Somebody may ask: what is the difference between the Canadian classification and the NYHA classification in terms of chest pain? Not in this patient, otherwise. The Canadian is specific for what?

00:14:04CandidateAngina.

00:14:04FacultySo what is the difference between Canadian and NYHA for angina, for chest pain? Anybody?

00:14:20Why am I asking all this? I don't intend to ask you all this, but you mentioned a specific activity, and based on that specific activity you said it is class 2 or class 3. In other classification systems — both the Specific Activity Scale and the Canadian classification — the activity is clearly defined.

00:14:36AudienceIn the Canadian Cardiovascular Society classification, they have specifically defined the activity in the form of either blocks or flights of stairs. One block is around 100 metres, and 8 to 12 [steps, unclear] is considered as one flight of stairs.

00:14:48FacultyOK, that is one important difference. Any other difference? Strenuous activity, in Canadian class 1. When we say NYHA class 1, ordinary physical activity does not produce anything, but we don't define whether strenuous activity produces symptoms. In CCS class 1, they have defined that strenuous activity produces angina. Is there another important difference? Is there anything like CCS 0? This was not there in the original CCS; it has been added later, so there is something called CCS 0. Some of the textbooks also write that. So these are the three important differences.

00:15:17Like dyspnea — any other scale? There is a [American, unclear] Thoracic Society scale. What is Borg's dyspnea scale, the rating of perceived exertion? These things you should read. Okay, yes, go ahead.

00:15:40CandidateExamination. The child was examined in sitting, supine and standing positions. He is comfortable at rest, thinly built and nourished [unclear]. Pulse rate is 98 per minute, collapsing, regular. No radio-radial or radio-femoral delay. All pulses are well felt and bounding. BP in the upper limb is 100 systolic, and diastolic is zero; muffling starts at 40. Lower-limb BP is 150. Respiratory rate is 16 per minute, abdominothoracic. SpO2 is 98 to 99 % in all four limbs. Temperature: afebrile. JVP is normal in waveform and pressure. Pallor is present; no icterus, cyanosis or clubbing. JVP is normal.

00:16:27FacultyWhat is the JVP? You said normal.

00:16:30CandidateNormal is up to 5 [cm] from the sternal angle, measured — yes, Sir, with a scale. It is not well visible; not visible, actually.

00:16:46FacultyYou can say the JVP is not elevated; that is the safest thing. Otherwise they will ask you, and you have two scales you may not have.

00:16:57CandidateAnthropometry: weight is 19 kg, height is 122 centimetres; weight for age is at the 3rd centile, height for age at the 3rd to 10th centile, and BMI at the 3rd centile. Upper segment is 61 centimetres, lower segment is 61 centimetres, and the upper-segment to lower-segment ratio is 1:1.

00:17:16Head-to-foot examination: no facial dysmorphism. Dental caries are present. No cleft lip or palate. Dancing carotids and carotid shudder are present. A collapsing pulse is there. Pistol-shot sounds over the femoral artery are present. No other features of aortic regurgitation or infective endocarditis. Signs of Marfan syndrome — thumb sign, wrist sign, [unclear] and pes planus — are absent.

00:17:46Systemic examination: inspection and palpation. Systemic — precordial —

00:17:51FacultyIt is better to say pulse, BP and so on, and then say "precordial examination". That will be better, because pulse and BP are included under the cardiovascular examination, so don't say it again.

00:18:05CandidateThe apical impulse is felt and seen at the left 7th intercostal space, one centimetre lateral to the midclavicular line. It is an LV-type, hyperdynamic apex. There is a systolic thrill at the left second to third intercostal space. Carotid shudder and dancing carotids are present. No other pulsations.

00:18:29Percussion: liver dullness is at the right 6th intercostal space, one centimetre lateral to the midclavicular line. Traube's space is resonant on the left. The left heart border corresponds to the apex; the right heart border corresponds to the right parasternal line. The left second intercostal space is resonant.

00:18:46Auscultation: S1 is normal. In S2, A2 is soft and P2 is normal. There is no click, no snap, no S3 or S4. There is no apico-carotid delay. A grade 4, late-peaking ejection systolic murmur is heard at the left second to third intercostal space. It is best heard sitting and leaning forward with breath held in expiration. It radiates to the neck, and on Valsalva the murmur is decreasing.

00:19:35FacultyThis child is 9 years old — how easy was it to do the Valsalva?

00:19:44CandidateIt was difficult, sir, but he was able to do it. After two or three explanations he was doing it.

00:19:51A grade 3 early diastolic murmur is heard at the left second intercostal space, with a decrescendo pattern. The murmur is more than half of diastole, and is best [unclear].

00:19:59FacultyAny other manoeuvre that you did, Valsalva being the difficult one?

00:20:03CandidateOther manoeuvres, Sir: I did isometric handgrip and squatting. For the AR murmur, with isometric handgrip and squatting it is increasing in intensity, but I could not appreciate the change in the AS murmur. Basically I wanted to rule out an AS murmur. It was decreasing on Valsalva, but for the AR murmur I couldn't appreciate that change.

00:20:46FacultySecond to third. Left second, you said?

00:20:51CandidateYes, it is. The early diastolic murmur is there.

00:21:02UnclearRight second intercostal space — both are on the left. Yes, it is radiating to the carotid.

00:21:32FacultyStill, complete your diagnosis first. You said — sorry — you said the thrill is in the left second space?

00:21:36CandidateYes, sir.

00:21:40FacultySo how will aortic stenosis produce a thrill in the left second space? The murmur can be heard on the left side or the right side — that is acceptable — but a left second space thrill? Do you really think it is [AS]?

00:21:51CandidateYes, it can be.

00:21:54FacultyDo you want to change anything?

00:21:58CandidateNow, it can be [unclear]. There is no other murmur. Other systems show normal findings.

00:22:16FacultyDiagnosis. Summarise the findings and the diagnosis.

00:22:23CandidatePallor is present. Dancing carotids are present, a collapsing pulse, and Hill sign is present — which are peripheral signs of aortic regurgitation [unclear]. Low diastolic BP. Cardiomegaly is there, a left second intercostal space thrill is there, a systolic murmur is there, and an early diastolic murmur is present in the left second intercostal space.

00:22:46FacultyA long early diastolic murmur?

00:22:46CandidateYes, Sir, it is more than half of diastole.

00:22:54Diagnosis: congenital acyanotic heart disease, situs solitus, levocardia, ventricular septal defect with severe AR.

00:23:04FacultyDid you change it, or is this your original diagnosis? Then what murmur do you want to describe? Do you want to change your murmur before you come to the diagnosis? Do you want to change or not change?

00:23:19CandidateI want to tell you —

00:23:22FacultySo what is the murmur that you want to change it to?

00:23:22CandidateThe systolic murmur — a pansystolic murmur.

00:23:26FacultySo what is the difference between an ejection systolic murmur and a pansystolic murmur?

00:23:33CandidateA pansystolic murmur will be of the same intensity throughout. An ejection systolic murmur will be increasing and then decreasing.

00:23:39FacultyAnything else? Timing.

00:23:44CandidateA pansystolic murmur starts with S1 and is throughout systole, but an ejection systolic murmur is mid-systolic.

00:23:52FacultyWhere does it start? What is the period in which a pansystolic murmur will be heard and an ejection systolic murmur will not be heard?

00:24:01CandidateThe isovolumetric contraction time.

00:24:04FacultySuppose there is a sound with which an ejection systolic murmur has to start — what is the sound?

00:24:08CandidateAn ejection click. The click is not there.

00:24:16FacultyGo on. So now complete the diagnosis: ACHD, VSD with AR. What VSD?

00:24:26CandidateMost likely it is a subpulmonic VSD.

00:24:26FacultyWhy are you clinically saying it is subpulmonic?

00:24:31CandidateBecause the murmur is heard at the left second intercostal space, so it has to be either subpulmonic or doubly committed.

00:24:40FacultyAnd perimembranous VSDs also develop AR. Which of the two develops more AR?

00:24:49CandidateIf the patient has AR, I would suspect it more likely to be a perimembranous VSD, because that is more common in total, but a subpulmonic VSD is more likely to develop AR.

00:25:05FacultyIt is like the 20 % plaque versus the 80 % plaque — which is likely to produce MI. The same thing here.

00:25:14Then after the shunt, you tell us the magnitude of the shunt. You have written VSD with AR — complete the diagnosis.

00:25:18CandidateIt is a large VSD.

00:25:22FacultySo you have come out with your diagnosis: ACHD, VSD with AR, subpulmonary VSD. Complete your full diagnosis.

00:25:32CandidateIn sinus rhythm, in congestive cardiac failure, no evidence of pulmonary arterial hypertension, no pulmonary hypertension, no infective endocarditis, [unclear] — no, not in heart failure.

00:25:47FacultyYou said CHF and then no CHF.

00:25:52CandidateHe has NYHA class 3 symptoms.

00:25:52FacultyHe has NYHA class 3 — that is different. But does he have congestive heart failure or not?

00:26:02CandidateNo.

00:26:02FacultyWhy do you say this [is a large VSD]?

00:26:05CandidateSevere AR and a significant shunt.

00:26:12FacultyFirst, what is the meaning of a significant shunt? We don't know what the grade of the shunt is — more than 2:1 or 3:1? And how do you clinically make it out? For the sake of everybody learning, leave the AR alone — just a simple VSD. How do you quantify the shunt?

00:26:35CandidateRestrictive, non-restrictive or moderately restrictive. If the LV and RV pressures are the same, it is an unrestrictive VSD. If the LV pressure is higher than the RV —

00:26:41FacultyThat is one thing, restrictive or non-restrictive. But regarding the shunt, you have to quantify the shunt. So how do you clinically quantify the shunt?

00:26:56CandidateA large shunt — early-onset symptoms will be there, failure —

00:26:57FacultyClinical findings-wise. A very simple example: a patient has a significant pansystolic murmur; a good pansystolic murmur is there. Now this patient can have a 1:1 shunt, a 1.5:1 shunt, a 2:1 shunt. How do you make it out?

00:27:21CandidateIf it is a pansystolic murmur, it is not large.

00:27:27FacultyThat's okay. But what is the shunt? This can be a small VSD with less shunt, or a moderate VSD with a reasonable shunt.

00:27:36CandidateSir, if we leave the AR alone, it is very simple: you have to look at cardiomegaly, LV S3 and the MDM.

00:27:39FacultySo how do you make out whether it is 2:1 or 1.5:1? What is the classical teaching? Nobody has checked all this and produced a P value or a comparison, but the classical teaching is: if you find both of them, S3 and an MDM at the apex, it is 2:1. If you find one of them, it is 1.5:1. If you find none of them, either there is significant PH and the shunt is reduced, or it is a small VSD.

00:28:09So now come back. Why is there severe AR? Why are you saying it is severe clinically?

00:28:14CandidateFirst of all, the [unclear] is 50, actually, and the diastolic BP is very low. Peripheral signs are there.

00:28:27FacultyIs that enough? Does it help in making it severe?

00:28:34CandidateDiastolic BP less than 50. Peripheral signs of AR are always —

00:28:42FacultyIf your diastolic pressure is coming to zero, do you think the patient has LV dysfunction? Sir, the diastolic pressure is coming to zero — do you think that there is LV dysfunction there?

00:28:57CandidateNo. If the patient has LV dysfunction, they will be dyspneic, and the diastolic pressure will be increased; the LVEDP will be increased.

00:29:12FacultyApart from the ones that you told, what are the other features of severe AR in this patient?

00:29:19CandidateHuge cardiomegaly.

00:29:19FacultySo cardiomegaly, and a very strong, important factor — the duration of the murmur, the long murmur. Which are the ones that are not there in this patient that you would expect?

00:29:31CandidateS3. Austin Flint.

00:29:36FacultyAustin Flint is not there. What does the S3 tell you in MR, and what does the S3 tell you in AR? This is another classic question for everybody, so those who don't know should know. That is the reason why I am asking.

00:29:56CandidateBoth are because of increased diastolic flow across the mitral valve.

00:30:01FacultyDoes it tell you whether LV systolic dysfunction is there or not?

00:30:04CandidateIn AR, if S3 is there, there is LV dysfunction. In MR it may not be because of LV dysfunction, because it indicates severe MR, but it may not be [LV dysfunction].

00:30:12FacultyWhy? Once you understand why, with this basic knowledge there is no confusion.

00:30:23CandidateIt can be because of the flow itself. Excess flow is happening across the mitral valve.

00:30:29FacultySo why do you get a collapsing pulse in AR?

00:30:33CandidateBecause of the diastolic run-off.

00:30:33FacultyIs the pulse a systolic event or a diastolic event? The pulse is systolic, so the diastolic run-off is happening in diastole. The peripheral run-off is happening in diastole; the pulse you are feeling in systole.

00:30:55CandidateIncreased pulse pressure will be there.

00:30:59FacultyAnybody? So it accommodates the increased cardiac output in systole itself. Otherwise, if the vessel remains rigid, the pressure will hit the roof. Obviously, the thing has to come down.

00:31:23And what are the causes of a systolic thrill in the second space? It is a very specific thing; very few conditions can produce it. What are the conditions that produce a systolic thrill in the left second space? What you have seen now is the subpulmonic VSD. Okay — what else?

00:31:38CandidateThen it can be pulmonary stenosis — valvular, then infundibular.

00:31:42FacultyYes, you can rarely find it slightly below. Which technique will help you rule it out? [unclear] can help there. Then, any other condition in which the pulmonary valve is normal but flow is increased?

00:32:04CandidateASD; mainly ASD with MR.

00:32:11FacultyOkay, we have 13 minutes; we will go to the [investigations]. So you have very severe AR and a significant shunt — basically a VSD. Does it happen like that? When VSDs develop severe AR like this, with the apex in the 7th space, will they still retain a large flow, a large shunt? What is the natural history?

00:32:40CandidateDoes AR severity correlate with the shunt? No. Only if it is a moderate-sized VSD can AR develop. If it is a large VSD — by the time severe AR develops, most of the time it is a small VSD that remains.

00:32:52FacultyYou must have done a lot of echoes by now. Yes — on echo, there's not a large [shunt] that will be going.

00:33:06CandidateECG at half standard: 12-lead ECG at half standard. Normal sinus rhythm; heart rate is around 100 to 110. The QRS axis is around 60 degrees. In V5 and V6 there are deep Q waves suggestive of volume overload.

00:33:51FacultyWhat about V1? Yes, half standard. He told me V1 has some R [unclear]. In a 9-year-old child, is this okay, or is there some evidence of RV — pulmonary hypertension or something — which can happen in a 9-year-old?

00:34:17Can VSD with AR have some RVOT obstruction? A VSD by itself can have RVOT obstruction. In VSD with AR also, the prolapse becomes so much that it can produce RVOT obstruction.

00:34:37Unclear[inaudible]

00:35:07FacultyOkay, get the X-ray. What is the phenomenon? What is the ECG like now?

00:35:23So, at full standard — Katz–Wachtel. What is the Katz–Wachtel phenomenon?

00:35:26CandidateIn the precordial leads between V3 and V4, both the R wave and the S wave will be of almost the same amplitude. If you add them, it should be more than 45 [unclear] mm.

00:35:46FacultyOkay, excellent.

00:35:54More like AR or more like shunt? Chest X-ray PA view. No — answer the question.

00:35:58CandidateSir, the question is more about the cardiomegaly.

00:36:01FacultyWhy we are asking all this is: there is huge cardiomegaly. Is it all because of AR, or all because of increased flow — LV volume overload? So from the X-ray, what is the first impression? Is it AR, or is it LV volume overload because of the VSD?

00:36:13CandidateI think there is hardly any increased flow.

00:36:21FacultySo what are the increased-flow signs that you look for on the X-ray?

00:36:26CandidateIncreased pulmonary vascularity.

00:36:26FacultySo what do you look for?

00:36:33CandidateEnd-on vessels; we have to look for them. The pulmonary arteries will be dilated, and end-on vessels will be there.

00:36:36FacultySo the pulmonary artery segment will be dilated — both the MPA segment and the LPA that you are able to see there — and then the RDPA will be dilated, apart from the end-on vessels. So, chest X-ray PA view: what are end-on vessels, and why are they end-on? What is the reason?

00:36:56CandidateIt is a cross-section, when we look from the front.

00:37:00FacultyCan you show some here?

00:37:08CandidateThey are not very prominent, but at least one or two are seen.

00:37:15FacultyNo — pull it down. This, probably. No, you are not seeing anything there. Not classical. Okay.

00:37:32CandidateX-ray PA view: situs solitus, levocardia. Cardiomegaly is there; the CT ratio is around 0.7. RA is dilated —

00:37:46FacultyRA is hardly dilated. I don't know whether the RA is dilated.

00:37:53CandidateLV apex is there.

00:38:01FacultyLV apex. And do you expect RA dilatation in this patient?

00:38:01CandidateNo.

00:38:08Faculty[unclear] — no. Do you expect [unclear]? Unless there is some [unclear] you want to bring in all your findings. [unclear] is there. Okay, discuss it later. Okay.

00:38:30CandidateThe CT ratio is around 0.7, LV apex. Pulmonary vascularity looks normal.

00:38:41FacultyI thought you said dilated? How much?

00:38:53CandidateNormal.

00:38:55FacultyOkay. Can somebody read out the echo report — the LV dimensions? Can somebody read the report?

00:39:25So in a VSD with AR, what Sir is suggesting is that RSOV should always be a differential. RSOV should be a differential diagnosis in any patient with VSD and AR whose symptoms started very early in life, in childhood. Can a patient with VSD later develop RSOV? No — it is always there. More than 50 % of RSOVs have a VSD.

00:39:50UnclearBut the prognosis is very bad in RSOV. He would not survive this.

00:39:55FacultyNo, the prognosis is not very bad if he develops it — say, a 2-year history; in the 2 years he has developed RSOV. But what are the chances of a 9-year-old developing RSOV? That is where you have to argue. But Sir is pointing out that with any systolic or diastolic murmur and a very superficial thrill, always keep RSOV as a differential diagnosis. That's what Sir is saying. In this child, I would not keep it. Sir has kept the mic.

00:40:31So you can afford not to keep a differential diagnosis, provided [unclear] the examiners. It's good to listen to people and then accept; you can keep a differential diagnosis. Nobody will trouble you if you keep a differential. I am not sure whether this is a systolic, diastolic or continuous murmur; such a loud murmur is there. It's always a good habit to keep a differential diagnosis. Suppose it is an RSOV into the RVOT — the murmur will still be at the same place. So you should keep a differential, and it is always better to agree with the examiner.

00:41:17CandidateThis is a 2D echo on the left side of the screen: a parasternal long-axis view 2D echo with a large subaortic VSD with a bidirectional shunt.

00:41:43FacultyOr is it something else?

00:41:46UnclearAR also I am seeing. AR is the one which we are seeing.

00:42:00FacultyIs the LV dilated?

00:42:00CandidateYes, the LV is dilated.

00:42:00FacultyYou should tell all those things.

00:42:07CandidateParasternal short-axis view 2D echo at the level of the mitral valve: the LV looks dilated, and function looks good. There is no regional wall motion abnormality. Parasternal short-axis view at the level of the aortic valve: it looks like a trileaflet aortic valve. There is a VSD.

00:42:31FacultyWhat is happening to the sinus? The sinus is dilated, right? What is happening to the sinus? Deformed — so that is Sir's point.

00:43:00This is showing some AR, and this you won't be able to quantify.

00:43:16CandidateColour Doppler across the aortic valve in the parasternal short-axis view: there is a VSD and aortic regurgitation.

00:43:34FacultyWhich sinus? RSOV occurs most commonly through which sinus — which sinus is involved? RSOV to the RV; the most commonly affected is the right sinus.

00:43:51Listen. But still — what is the Doppler like? Is it a continuous signal?

00:44:06UnclearI think it must be. This place looks like [unclear].

00:44:17CandidateIs it systolic or diastolic, Sir? Because it is confusing, Sir.

00:44:28FacultyAt times, even after cath, CT and echo, there is confusion whether it is a VSD or an RSOV. That kind of confusion always happens, so you cannot be rigid; you have to be flexible.

00:44:50Okay, what will you do?

00:44:56CandidateI will send this patient for surgery, for VSD closure and aortic valve [repair]. In this patient I will ask them to attempt a repair, which is actually technically difficult.

00:45:20FacultyMassive, massive deformation. Yes, there is a huge difference. There seems to be something like an RSOV. I think there is a windsock, but through the windsock there is not much flow. Maybe [unclear] — a small RSOV with VSD and AR.

00:45:46Here it looks like a windsock, and it's going into the RV. A windsock — but I don't know whether it has ruptured; there is nothing [no flow seen]. And you can see some RVOT obstruction also; you can see some [unclear].

00:46:01Unclear[unclear] Just below the proximal pulmonary valve [unclear].

00:46:28FacultyRSOV is what type of shunt?

00:46:34CandidateIt depends upon where it ruptures — whether it ruptures into the RA or the RV.

00:46:38FacultyWhat are the different types of shunt?

00:46:38CandidateBoth of them — pre-tricuspid and post-tricuspid.

00:46:43FacultyIf it ruptures into — that is the question you have to understand. What is the question? What is obligatory? What is an obligatory shunt? Anybody?

00:46:57AudienceIt happens both in systole and diastole.

00:47:07FacultyIt doesn't depend on —

00:47:07AudienceIt doesn't depend on the PVR.

00:47:11FacultyWhat are the examples of obligatory shunts? It does not depend on PVR. Yes — and another example, PAPVC.

00:47:23There is a small problem here: sometimes we think of the English term "obligatory". In the English sense, in TAPVC the right-to-left shunting at the ASD is obligatory. That is not what we are discussing here.

00:47:41Sir, I think give him a big hand for changing half way; the whole diagnosis has changed. I think he initially wrote [unclear].

20

Day 2 · 18-Oct-2026 · 15:48 hrs · 38 min

Bicuspid Aortic Valve Stenosis and Regurgitation

  • Bicuspid aortic valve
  • Aortic stenosis
  • Aortic regurgitation
  • Balloon aortic valvotomy
  • TAVR vs SAVR
  • Aortopathy
  • Echo

A DM/DrNB candidate presented a 57-year-old man with exertional dyspnea for 15 years, exertional fatigue for 5 years, exertional angina for 3 years and recent PND, who had undergone a balloon procedure via the right groin at the institute 10 years earlier. The candidate initially assumed a balloon mitral valvotomy and offered rheumatic mitral differentials, but the examination showed a bisferiens pulse, ejection click, palpable S4, a right second-space thrill with a late-peaking ejection systolic murmur and a short early diastolic murmur, leading to a diagnosis of bicuspid aortic valve with severe AS and moderate AR. The examiners pointed out the discordance with the assumed mitral procedure and discussed the limited role of balloon aortic valvotomy in adults, temporary pacing in decompensated AR, ECG and X-ray findings, and surgical versus transcatheter valve replacement in a 40-year-old. Echo showed severe AS (Vmax 4.4 m/s, mean gradient 52) with aortic root measurements; the recording ends with the session's close.

Case
57-year-old man from West Bengal, auto-rickshaw driver, studied to 10th standard; exertional dyspnea 15 years, exertional fatigue 5 years, exertional angina 3 years, PND; balloon procedure via right groin at the institute 10 years earlier.
Diagnosis discussed
Congenital heart disease: bicuspid aortic valve with severe aortic stenosis and moderate aortic regurgitation, in sinus rhythm, normal LV function, no infective endocarditis, status post balloon aortic valvotomy (the earlier balloon procedure judged to have been aortic, not mitral); dilated ascending aorta.

Teaching points

  1. Causes of deterioration in a stable valvular patient include restenosis or progression, a new valve lesion, arrhythmia, ventricular dysfunction, coronary artery disease, hypertension, mechanical complications such as chordal rupture, anaemia and infective endocarditis.
  2. Ensure the history and the clinical findings are concordant: a prior 'balloon' procedure with purely aortic findings points to a balloon aortic valvotomy rather than a mitral valvotomy.
  3. Do not quote guideline rules without a reference; the examiners rejected the claim that rheumatic prophylaxis is not given after 40 years.
  4. Describe the pulse character decisively — either collapsing or bisferiens.
  5. A palpable/audible LV S4 argues against severe mitral stenosis and atrial fibrillation.
  6. Grade AR clinically by murmur duration: an early diastolic murmur occupying more than 50 % of diastole is long (severe); less is short.
  7. The Austin Flint murmur is a functional mitral stenosis murmur due to AR restricting mitral opening; the diastolic murmur of acute rheumatic fever is the Carey Coombs murmur.
  8. Balloon aortic valvotomy in adults is a palliative procedure, not the treatment of choice for severe AS at 40 years.
  9. AR worsens with bradycardia; in a sick patient with severe AR and a heart rate of 50 awaiting AVR, temporary (dual-chamber) pacing to increase the rate can bridge to surgery.
  10. Plan lifetime management of aortic valve disease: TAVR valves are bioprosthetic, so a 40-year-old should be offered surgery; the age threshold quoted was about 70 (USA), 65 (Europe) and about 60 in India.
Edited transcript 200 paragraphs · 4,084 words

00:00:05CandidateGood afternoon, teachers. Here is a 57-year-old male patient.

00:00:13UnclearYes, sir.

00:00:18CandidateA 57-year-old male hailing from West Bengal. He has studied till 10th standard. He is an auto-rickshaw driver by occupation, belonging to the upper middle class. The informants are himself and his son. He came with chief complaints of dyspnea on exertion since 15 years, exertional fatigue since 5 years, and angina on exertion since 3 years.

00:00:53History of presenting illness. The patient was apparently all right 15 years back. Then he started to notice dyspnea on exertion, mostly on climbing more than 3 to 4 flights of stairs in his hometown near his house, and it gradually progressed over a period of at least 5 years, so that he was not able to climb even one flight of stairs. For this he was shown at a local hospital, where he was told that he had a heart disease and needed to go to a higher centre for further management. For this the patient came to our hospital 10 years back, where a groin procedure was done — a right-sided groin procedure — and he himself says he had undergone a balloon surgery.

00:01:43After that, the patient gives a history of reduction in symptoms, and he was going on with his daily activities without much symptoms. But again, the patient gives a history of progression of dyspnea on exertion during daily activities. He also gives a history of getting up at night due to breathlessness, which made him get up from bed and gasp for air. Initially it usually subsided, but in recent times this dyspnea has been occurring frequently, he says, Sir.

00:02:19FacultySo 15 years ago he first developed breathlessness, came here, got a balloon procedure done 10 years back, and now that same dyspnea has progressed — since how long?

00:02:30CandidatePresently also he is in functional class 3, Sir.

00:02:34FacultyNot that — duration. Presently, since how long?

00:02:38Candidate10 years, Sir. Over 10 years it has progressed, Sir — after the balloon surgery, 10 years, Sir. Before that, 5 years.

00:02:45FacultyHow old is he?

00:02:49CandidateHe is 57 years old, ma'am.

00:02:53FacultySo this time, after the procedure, he has been symptomatic for 10 years.

00:02:53CandidateYes, sir.

00:02:59The patient also gives a history of exertional fatigue since 5 years. Initially he was able to do all daily activities without much symptoms; now he gives a history of getting fatigued even while doing daily activities. He also gives a history of angina on exertion, which used to last for a few minutes after lifting heavy weights in his house; it has gradually progressed, and it used to be relieved on taking rest. This symptom he has had for the last 3 years.

00:03:42No history of palpitations, no history of syncope or giddiness, no history of fever or joint pains, or of taking any IM injections in the past. No history of loss of consciousness. He gave a history of PND, Sir. No history of orthopnea.

00:04:04Past history: not a known case of diabetes mellitus, hypertension, thyroid illness, or cerebrovascular accident in the past. Family history: there is no family history of sudden cardiac death or of any cardiac disease in the family members. Personal history: the patient has a mixed diet, appetite is normal, sleep is disturbed in the form of PND, bowel and bladder habits are normal and regular, and he denies any addictions.

00:04:42Treatment history: the patient is currently on two types of medication. One medication he takes in the morning and another in the afternoon, he told me, Sir. I deliberately asked whether his frequency of micturition has increased since taking these medications; he denies that.

00:05:03Shall I summarise, Sir?

00:05:03FacultyInterpretation — what are we [thinking]?

00:05:08CandidateYes, sir. The patient is giving a history —

00:05:08FacultyNo, don't repeat.

00:05:08CandidateYes, sir. I am sorry.

00:05:13FacultyGive a haemodynamic explanation of the whole natural history.

00:05:13CandidateYes, sir. The patient might have left-sided heart failure symptoms. I am thinking of valvular heart disease, since for the same heart disease he might have undergone a balloon surgery — probably mitral stenosis — and the patient was asymptomatic for a period of time. Then the symptoms gradually progressed. Along with that, he has had newer symptoms such as [unclear] and angina, Sir. So I am thinking of additional valvular diseases, like the development of regurgitant disease also, Sir. Along with that there is angina also.

00:05:56FacultySo most likely, at the age of 40 or 45, he had symptoms suggestive of left-sided valvular heart disease, for which he underwent a balloon procedure; there was relief, and over 10 years he gradually deteriorated. That's what you're telling?

00:06:06CandidateYes, sir.

00:06:11FacultySo what are the causes of deterioration in any known valvular heart disease?

00:06:17CandidateWhat are the causes of deterioration, Sir? One is the development of infective endocarditis, but he is not giving any history suggestive of it.

00:06:26FacultyNo — it is a slow process in this case; gradual, not in a short time.

00:06:26CandidateYes. Newer valvular lesions, such as regurgitant lesions — that means the dilated valve might again be getting restenosed over the years.

00:06:36FacultyYes, possible. Development of a new lesion is a possibility. Development of additional arrhythmias is a possibility. Development of ventricular dysfunction is a possibility. Development of coronary artery disease or hypertension is possible. These are the factors we assess.

00:06:58CandidateYes, sir.

00:06:58FacultyYou tell — actually, what else is possible?

00:07:03CandidateDevelopment of coronary artery disease I am also considering, sir, because of his age and because it is a recent symptom, sir, which might have progressed his symptoms; and a newer valvular lesion I am also considering, sir.

00:07:19FacultyPossible or not?

00:07:19CandidatePossible, Sir.

00:07:22FacultySo, in valvular disease, if one valve was moderately affected, it could have progressed. There can be new mechanical complications, like mitral valve chordal rupture and all that. Additional mechanical complications are also possible, acutely. Development of anaemia is a possibility. All these are causes of deterioration in a relatively stable patient. Okay, go ahead.

00:07:53In the past, was there any history suggestive of rheumatic fever?

00:07:55CandidateHe is not giving those histories, Sir. I have asked about joint pain, Sir. But he didn't give such histories, and there is no history of taking injections.

00:08:06No, Sir, he is not telling, Sir, right from the beginning. He is taking oral medication, he told me, Sir — oral medication twice a day and once —

00:08:13FacultyNo — after the procedure, was he advised any rheumatic prophylaxis?

00:08:16CandidateHe is not telling of injections, Sir. He is taking medication orally, he told me, Sir.

00:08:24FacultyNo — at least, was he advised? He was advised two types of medications. At the age of 40, some balloon dilatation was done. So which will be more likely — mitral, aortic or pulmonary?

00:08:37CandidateI want to think of mitral, Sir.

00:08:37FacultyMitral you want to put first. So at the age of 40, when the balloon mitral valvotomy, BMV, was done — at discharge, was he advised any prophylaxis?

00:08:55CandidateI asked, Sir: "Are you taking any injections or anything like that?" But he denied it, Sir.

00:09:00FacultyWhat is the standard recommendation? Suppose somebody has rheumatic mitral disease — even if he comes for the first time at 40 years, what is the recommendation?

00:09:12CandidateWe need to continue rheumatic prophylaxis for at least 10 years, but usually above 40 years we don't recommend it, Sir. If the patient is less than 40 years, then we should continue till 40 years, or 5 years at least.

00:09:26FacultyCan you give the reference for this, please? There is no recommendation like 40 years. What is your reference?

00:09:35CandidateFor this particular sentence — I always speak from books.

00:09:35FacultyYes, okay. Please verify this. This is not correct. Okay, then next — differentials.

00:09:53He has been saying that after 40 years you don't give rheumatic prophylaxis by any chance. Is it coarctation? Is it a possibility that a coarctation dilatation is being mistaken for a valve [dilatation]?

00:10:07CandidateHe is not giving a history of hypertension. But I didn't consider it.

00:10:07FacultyDo you want to add something?

00:11:12UnclearSir — autoimmunity. Sir told that autoimmunity plays a role as the precipitating factor in the [unclear].

00:11:49Sir, HLA typing — patients with the HLA-DR group of genes are more susceptible to rheumatic fever if they are exposed to certain strains.

00:12:11FacultyOK, we will get back to the case. So you think it was a successful PBMV?

00:12:23CandidateThe procedure was successful; the patient told us his symptoms had reduced.

00:12:28FacultyWhat is the natural history of a balloon-dilated mitral valve?

00:12:38CandidateIf it was a successful balloon mitral valvotomy, then at least for the next [few years] the rate of progression of the valve [disease] is not as much as the —

00:12:48FacultyAre there any studies on that?

00:12:54CandidateI don't understand.

00:12:57FacultyRestenosis rate after BMV — at 5 years. There are studies after OMV, and even PBMV comparisons. There are studies.

00:13:16CandidateOkay, Sir, I'll do it.

00:13:21FacultyOK, go ahead. We have just 15 [minutes] — differential diagnosis.

00:13:25CandidateSir, I want to consider chronic valvular heart disease of rheumatic origin: mitral stenosis with mitral regurgitation; or mitral stenosis with aortic regurgitation; or mitral stenosis with mitral regurgitation with associated aortic stenosis, especially with the angina. I also want to consider cardiomyopathy, Sir — HOCM — as my differential, Sir, because at that time he might have undergone a PTSMA procedure, which might have progressed now, with associated mitral regurgitation along with the cardiomyopathy.

00:14:00FacultyOf them, which is the first possibility?

00:14:05CandidateMS with MR I want to consider, Sir — MS with progression of the disease, or restenosis. Restenosis with mitral regurgitation I want to consider as the first differential, Sir.

00:14:20Physical examination. General examination: the patient is moderately built and moderately nourished; height 155, weight 54, BMI 21.6 kg per metre square. Pulse rate 89 beats per minute, regular, high volume, with bisferiens quality. No radio-radial delay, no radio-femoral delay; all peripheral pulses are well felt, Sir. Hill sign was positive, with 30 to 40 mmHg of difference between lower-limb and upper-limb systolic BP, Sir.

00:14:58BP: right upper limb 140/70; left upper limb 142/78; both lower limbs 178 and 176 mmHg, I got, Sir. A 36 mmHg difference. Respiratory rate 16 cycles per minute, abdominothoracic type. SpO2 of 98 % in all limbs, Sir. No pallor, no icterus, no cyanosis, no lymphadenopathy, no signs of infective endocarditis, sir. The patient doesn't have prominent carotid pulsations or other signs of aortic regurgitation.

00:15:39FacultyWhat is the diastolic?

00:15:39CandidateI got 70 mmHg, ma'am.

00:15:45Faculty140/70, and you said Hill sign is positive?

00:15:45CandidateYes, Sir. 140 systolic with 176, so a 36 difference I got, Sir. But I couldn't find any peripheral signs of aortic regurgitation.

00:15:57FacultyYou expect, with a diastolic of 70, more than [unclear]. The character of the pulse is bisferiens?

00:16:05CandidateThe character is high-volume bisferiens, yes, Sir.

00:16:11FacultyNot collapsing?

00:16:11CandidateNo, Sir — non-collapsing nature of the pulse. I didn't get a proper water-hammer kind of pulse.

00:16:20FacultyNo — you have to tell me either collapsing or bisferiens. Either one you have to tell me.

00:16:25CandidateYes, sir. No pallor, no icterus, no cyanosis, clubbing or lymphadenopathy, no pedal oedema. JVP is not elevated in the sitting posture at 45-degree angulation, with normal waveforms and normal respiratory variation; negative hepatojugular reflux.

00:16:49Inspection and palpation, Sir: the chest is bilaterally symmetrical. The apex is located in the 5th intercostal space, 0.5 centimetres lateral to the midclavicular line, heaving in type, with medial retraction. A thrill is present in the right second intercostal space. No parasternal heave or epigastric pulsation; no scars or sinuses. I could see suprasternal pulsation, with a palpable S4 also.

00:17:22FacultyS4?

00:17:25CandidateS4, yes — LV S4.

00:17:25FacultyWhat does it rule out?

00:17:37CandidateMS.

00:17:38FacultyMS — severe MS. Not AF?

00:17:45CandidateSir, the rhythm is regular, Sir.

00:17:45FacultyWill S4 rule out AF also?

00:17:55CandidatePercussion: the left heart border corresponds to the apex; the right heart border is retrosternal. Traube's space is tympanic on the left. Hepatic dullness is percussed in the right 5th intercostal space in the midclavicular line.

00:18:15Auscultation: S1 is normal. S2, with the A2 component prominent, with a narrow split. An ejection click was heard, and S4 was present, Sir.

00:18:34FacultyMurmurs? Ejection click and S4 — you have not told [unclear].

00:18:34CandidateS4 is present, and an ejection click is present — aortic.

00:18:47Coming to murmurs: there is a harsh, medium-pitched ejection systolic murmur of grade 4/6 in the right second intercostal space, radiating to both carotids and also radiating to the apex. There is a rumbling decrescendo murmur — sorry, Sir, there is a decrescendo murmur of grade 3/4: an early diastolic murmur of grade 3/4, which is of short duration, and it is heard in the left 3rd intercostal space.

00:19:24FacultyShort duration — short duration, but 3/4.

00:19:36CandidateLate-peaking, Sir. Yes, Sir.

00:19:48Other systems: respiratory system — bilateral air entry present, no added sounds. Per abdomen: soft, non-tender. Central nervous system: no focal neurological deficit noted. Final diagnosis: congenital heart disease, bicuspid aortic valve —

00:20:03FacultyJust a minute before that. Did you look for any other findings, like apico-carotid delay?

00:20:08CandidateSir, I tried to check in this patient, Sir, but I couldn't —

00:20:12FacultyBut you didn't mention it at all. Is it there or is it not there?

00:20:21CandidateI couldn't appreciate it, Sir. I tried to check for it.

00:20:21FacultyOkay. So you mean congenital heart disease?

00:20:27CandidateYes, sir, because of the click.

00:20:27FacultyAnyway, you just mention it — complete it first.

00:20:34CandidateCongenital heart disease: bicuspid aortic valve with severe AS and moderate AR, in sinus rhythm, in NYHA functional class 2, with normal LV function, with no signs of infective endocarditis, [and] post-PBMV status —

00:20:53FacultyBut it was — I think it was aortic. No, it's BAV — balloon aortic valvotomy. You commented that BMV was done.

00:20:59CandidateBalloon. He told me "balloon", Sir, but he didn't specify which valve. He has not told, so I assumed it might be mitral because of the symptoms. Dyspnea is the main symptom he gave, so I thought it was mitral.

00:21:20FacultyOkay. Why do you say it is severe AS? What are the hard points in the clinical exam?

00:21:27CandidateThe patient has a prominent A2, with S4 and a late-peaking murmur, and a narrow split, Sir — narrow split.

00:21:41FacultyWhat — loud A2 or soft? Normal A2, or soft?

00:21:41CandidateA2 was increased in intensity.

00:21:46FacultyLoud A2, yes. [unclear] will not tell you [unclear].

00:21:56CandidateA2 is preserved, Sir. A2 is preserved, Sir. A thrill is there, Sir.

00:22:01FacultyA thrill is there, and it was a late-peaking systolic murmur, and there was an S4. You said a palpable S4 is also there.

00:22:10CandidateThat's why I was thinking of severe AS. The apex is a left-ventricular-type, heaving apex, Sir. Yes, Sir — in the 5th intercostal space I got it, Sir.

00:22:24FacultyThat is the contradictory one I got.

00:22:35Quantify the AR here. How much AR is there?

00:22:35CandidateI want to consider it as moderate, Sir, because the murmur was of short duration, but it was significant, 3/4.

00:22:46FacultySee, we only have whether it is up to 50 % of diastole or beyond that — less than 50 % or more. Clinically, that is the assessment we have to do. If it is beyond 50 %, it is long; otherwise, short.

00:23:02CandidateOkay. I felt it was less than 50 % of diastole.

00:23:06FacultySo here you have aortic valve disease with AS and AR. So clinically, how do you decide whether AS is dominant or AR is dominant?

00:23:13CandidateHow to decide, Sir: the patient will have a pulse of low volume and late-peaking character — a pulsus parvus et tardus kind of pulse — and on palpation he will have a heaving apex, and he will have a thrill in the right second intercostal space, and he will have a late-peaking systolic murmur. That is suggestive of significant, severe AS. But if the patient has significant AR, then the patient will have a high-volume, collapsing kind of pulse, with Hill sign and other peripheral signs of aortic regurgitation, and the apex will be down and out; it will be a hyperdynamic type, and the patient will have an S3; and on auscultation he will have an early diastolic murmur of more than 50 % of diastolic duration.

00:24:13FacultySo you feel severe AS and moderate AR?

00:24:13CandidateYes, sir. LV function normal, sir.

00:24:24FacultyNormal. And mitral valve disease?

00:24:27CandidateMitral valve disease is not there on auscultation. I didn't get any opening snap.

00:24:31FacultyNot there. Okay, fine. What is the Austin Flint murmur?

00:24:37CandidateSir, the Austin Flint murmur is the diastolic murmur we get during acute rheumatic fever —

00:24:47FacultyAustin Flint. Austin.

00:24:47CandidateOh, sorry — think and talk. Sorry. The Austin Flint murmur is the [mid-]diastolic murmur we get because of the aortic regurgitation: there will be restriction to the mitral valve opening, which can give rise to it. It is called functional mitral stenosis.

00:25:17Faculty[The murmur] you were explaining in acute heart failure — acute rheumatic fever — is Carey Coombs.

00:25:26What do you think is odd about your history and final clinical examination?

00:25:31CandidateSir, the patient came with dyspnea, Sir —

00:25:31FacultyNot that. At 40 years he had undergone a balloon dilatation —

00:25:35CandidateAt the age of 42 years.

00:25:40FacultyAnd you are saying you first thought it may be a mitral balloon dilatation, but what we found on clinical examination is purely aortic valve disease. That is not concordant, isn't it?

00:25:51CandidateYes, sir.

00:25:54FacultyThat means they dilated a stenotic aortic valve, you mean?

00:25:54CandidateYes, sir.

00:26:00FacultyStenotic at the age of 40. And what is the role of BAV in adults? Is it the right practice?

00:26:06CandidateIt is a palliative procedure — a palliative procedure in an elderly patient who cannot undergo [surgery].

00:26:11FacultyIs it a recommended procedure? At 40 years, somebody presented with severe AS — is BAV the treatment of choice?

00:26:17CandidateNo, sir — a young patient. That means they have done it off-label.

00:26:30Unclear[unclear] Very good. Non-calcified — no [unclear].

00:27:26FacultyBut he went on for another time. Okay. Shall we see some ECG and X-ray? Only 3 minutes left.

00:27:38And you are considering aortic valve replacement, but just before surgery he goes into shock. His heart rate is 50. Can you still get him on to the operating table?

00:27:53CandidateYou can go for transcatheter replacement of the —

00:27:53FacultyNo — supposing he doesn't [qualify]. He's very sick, but his heart rate is only 50, and he's got severe AR, awaiting AVR. Can you do something and think that you can get him on to the table? Can you reduce his AR by some means?

00:28:18CandidateSir, we can give medical management with afterload reduction.

00:28:25FacultyIs AR more in bradycardia or tachycardia?

00:28:25CandidateBradycardia.

00:28:30FacultyIncrease the rate. You can increase the heart rate with pacing. You can do a dual-chamber temporary pacing and hope that you will make it to the table.

00:28:43CandidateECG: sinus rhythm, with LVH with asymmetrical T inversion — a strain pattern — and LA enlargement in the lead; prominent LA enlargement because of the inverted [P terminal component] here in V1. The axis is around 10 to 20 degrees.

00:29:17UnclearZero.

00:29:23CandidateMa'am, because it is occupying [unclear].

00:29:23FacultyNo — why LA in this patient? Why has this patient got left atrial enlargement? Is it due to mitral disease, or is it secondary to LV dysfunction?

00:29:44CandidateNot LV dysfunction — he might have developed [unclear], which might have resulted in LA enlargement.

00:29:52FacultyThe LA abnormalities — it is called ECG LA abnormality; it may not be LA enlargement. It is possible in any LV dysfunction, right? Next.

00:30:09CandidateSir, this is a chest X-ray PA view with poor exposure, with a normal RA, with a dilated aortic shadow, and the CT [ratio] — the apex appears LV type, sorry, with a rounded contour.

00:30:32FacultyIs there any rotation?

00:30:41CandidateNo, Sir, there is no rotation.

00:30:41FacultyThe right clavicle is away; the left clavicle is a little close by. Slight rotation. Is there any LA enlargement? On ECG you said there is LA enlargement; radiologically, a double density is not there. It is the aorta, right? Any calcification?

00:31:09CandidateNo, sir.

00:31:09UnclearDo we have time for the echo, sir?

00:31:15CandidateSir, the pulmonary area looks dilated — the aorta. Sir, the aorta looks dilated, so he might need a Bentall procedure.

00:31:30FacultyYes. Aortopathy related to bicuspid [valve].

00:31:37Suppose the same patient came to you 10 years back, and you are the cardiologist. Finances are not an issue. What will you do — surgical aortic valve replacement or TAVR?

00:31:52CandidateI will discuss with the patient, if he was 40 years old —

00:31:57FacultyHe was 40 years old when he came to you. Finance is not a problem.

00:32:03CandidateOkay, Sir. Sir, if the patient is willing — if he doesn't [want surgery] —

00:32:08FacultyNo — what will you suggest? Surgical open-heart procedure? Then you can talk to him about the advantages. And you won't do TAVR?

00:32:16CandidateNo, Sir. I want to discuss with him regarding the advantages.

00:32:20FacultyWill you advise TAVR at all? 40 years — 40 years, came to you, no financial constraints, and you are a good operator.

00:32:34CandidateSurgery is the first option, Sir. I will give surgery as the first option.

00:32:39FacultySurgery only. Why?

00:32:39CandidateThe second option is TAVI, because he has a dilated aorta [unclear] — his age, young age, Sir. Young patient, longer life expectancy.

00:32:48FacultySee — after all, a TAVR valve is a bioprosthetic valve, which can degenerate in 6 to 8 years, isn't it? So at 40 years you should not keep that in mind at all. You don't plan the procedure for that particular day; you always plan lifetime management of aortic valve disease. So, keeping that in mind, you do not advise TAVI. In the USA, the guidelines say 70; the Europeans have come down a little — they say about 65. In India you can stretch it to about 60, because life expectancy as such is 10 years younger. But beyond that, you don't — you don't do TAVI for people below the age of 60.

00:33:38CandidateYes, okay.

00:33:42FacultyWhat is the operative mortality of surgical AVR?

00:33:48CandidateSir, 2 %, Sir.

00:33:48Unclear4 %? 2 %.

00:33:48Faculty2 %, yes. Sometimes this type of question will come. You can say, "In my institute it is like this."

00:34:04Should we see the echo? Close.

00:34:06CandidateOkay. Can we go to the echo, right, Sir? This echo image is taken by the transthoracic route, showing a parasternal long-axis view with concentric LVH, and there is slight [LA] enlargement, with a thickened aortic valve and reduced opening of the aortic valve. Next.

00:34:38This is the colour Doppler showing turbulence across the aortic valve.

00:34:49This is a short-axis view showing a calcified aortic valve and a dilated LA —

00:35:03FacultyBicuspid — are you able to make it out, see it properly? I don't think it is opening [well enough to see]. But you gave a clinical diagnosis of bicuspid aortic valve. It is not always possible.

00:35:21UnclearThere is a suspicion of a bicuspid valve with left and right [cusp fusion], but I am not very sure. It would be difficult to make out unless you get a better view.

00:35:35FacultyOkay, go ahead.

00:35:35CandidateIndirect evidence: the annulus is 21, the sinus of Valsalva 28, the STJ 26, and the ascending aorta 36.

00:35:45FacultyOkay — till he has time. You could just skip that. I have already given the [unclear].

00:35:55CandidateHe has got severe — 62 by 45 [unclear] — moderate. Peak gradient of 79 and mean of 52. Vmax is 4.4, so severe AS, [unclear].

00:36:13FacultyOkay, one echo-related question. What are the measurements a surgeon will like to have from the echo?

00:36:16CandidateAortic annulus measurement, STJ and ascending aorta.

00:36:21FacultyWhat is its importance? What is it, simply?

00:36:25CandidateSir, it can decide on the size of the aortic [valve prosthesis]. One is the annulus, second is the sinotubular junction, sir, and third is the ascending aorta, sir — to look at whether replacement of the aorta is required or not.

00:36:41FacultySo what do you understand by a small root, a normal root or a big root? For the surgeon, how does it affect [the operation]? Suppose in one case we send a small-root AS, another a normal-sized root, another a large root. What are the surgical implications of the root size?

00:37:14Unclear19 — 19 mm. [unclear]

00:37:35CandidateYes, sir. 50 mm is the cut-off, sir. If there are associated comorbidities, then it is 50 mm, Sir. If there are no comorbidities, it is 55 mm.

00:37:59Unclear45. Yes, sir.

00:38:03FacultyWe will close. Thank you. You are done.

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