Coronary angiogram is a video graphic snap shot of coronary arterial lumen which is filled with radio opaque dye. This is some times called as coronary luminogram . It is a paradox , when we say normal coronary angiogram we can only mean normal coronary lumen. But generally, this can provide sufficient information regarding the status of coronary blood flow.There are three structured layers in [...]
Archive for August, 2008
What is a normal coronary angiogram & What is a normal coronary artery ? Do they mean the same ?
Posted in Cardiology - Clinical, Cardiology -Interventional -PCI, tagged cad, cardiology, cleveland, coronary angiogram, coronary artery, intra vascualr ultrasound, ivus, mayo clinic, pci, ptca on August 31, 2008 | 1 Comment »
Ironies in cardiology – Sinus rhythm loses the battle with atrial fibrillation in cardiac failure !
Posted in Uncategorized, tagged AFFIRM, amiodarone, atrial fibrillation, cardiac failure, drsvenkatesan, heart rhythm, lancet, nejm, pubmed, RACE, rate control, RF ablation, rhythm control on August 26, 2008 | Leave a Comment »
The debate of rate control verses rhythm control in atrial fibrillation goes on and on. The AFFIRM, RACE,PIAF, STAF the HOT CAFE all went against sinus rhythm in the last 10 years . This was one of the settled contoversies in cardiology . The conclusion was ventricular rate control was no way inferior to rhythm [...]
Don’t panic when you diagnose a left main disease in routine coronary angiogram : It may cost you a life !
Posted in Cardiology -Interventional -PCI, cardiology- coronary care, tagged acs, atherosclerosis, cardiology, cath lab, chronic stable angina, coronary artery disese, drsvenkatesan, europcr, intervenional cardiologists, left main, left main disese, pci, ptca, tct md on August 25, 2008 | Leave a Comment »
Left main coronary lesions are fairly common during routine coronary angiogram.These may be a critical or a innocuous lesion.The word “left main” triggers a sort of alarm reaction to many cath lab staff as well as the cardiologists and surgeon.Many times, these left main lesions are detected in patients with chronic stable angina who have stable [...]
Guideline violations in cardiology practice : Every body does it , so do I !
Posted in Cardiology -Interventional -PCI, cardiology- coronary care, cardiology-ethics, tagged cto, drsvenkatesan, ebm, ethics in cardiology, evidence based medicine, medicine, modern medicine, pci, ptca, statins on August 24, 2008 | Leave a Comment »
All is not well, that ends well !
Treatment guidelines in cardiology practice are periodically published by ACC/AHA/ESC.These guidelines represent the current scientific practice. They are called some times as recommendations. Medical professionals tend to adhere to this guidelines whenever possible.They are not legally binding in most of the countries.In USA some states believe it, to be legally binding.
The problem with [...]
Auditing after PCI : Do we worry more about “late lumen loss” than “late patient loss”?
Posted in Cardiology -Interventional -PCI, Infrequently asked questions in cardiology (iFAQs), tagged acs, cardiology, cath lab, chronic stable angina, drsvenkatesan, ethics in cardiology, ethics in medicine, gruentzig, pci, ptca, stemi on August 16, 2008 | Leave a Comment »
Interventional cardiology as a speciality is in cross roads.
The number of coronary interventions (PCI) has increased exponentially world over. With increasing Cath labs and growing expertise , access to PCI has enormously increased even in underdeveloped countries. Meanwhile , public lack specific technical information about the appropriateness of these costly procedures. It is our duty to do self audit on this [...]
How do you diagnose reinfarction ?
Posted in Cardiology - Clinical, Infrequently asked questions in cardiology (iFAQs), cardiology -Therapeutics, tagged cardiology, drsvenkatesan, failed thrombolysis, infarct expansion, infarct extension, madras medical college, myocardial infarction, nstemi, stemi on August 15, 2008 | Leave a Comment »
Recurrent myocardial infarction following an ACS is a fairly common clinical problem. Many times this is not recognised because it is difficult to establish the diagnosis.
The issues relevant here is
When does the first infarct (Index infact) process end ? and when the second infarct process start ?
Can [...]
What is pulse deficit ? What is the mechanism of pulse deficit ? Where does it occur ?
Posted in Cardiology - Clinical, Infrequently asked questions in cardiology (iFAQs), tagged artery, atrial fibrillation, bmj, cardiology, clinical cardiology, clinical signs, drsvenkatesan, heart, irregular pulse, lancet, nejm, pulse, pulse deficit, ventricualr ectopic beat, VPD on August 13, 2008 | 2 Comments »
Pulse deficit is a clinical sign wherein , one is able to find a difference in count between heart beat (Apical beat or Heart sounds ) and peripheral pulse .This occurs even as the heart is contracting , the pulse is not reaching the periphery.This can occur in few clinical situations .
1 . Atrial fibrillation.
2. Very [...]
Land mark studies in cardiology – Diastolic Heart failure : Ejection fraction is preserved all right , but “The life” is not !
Posted in Cardiology - Clinical, Cardiology -unresolved questions, Cardiology-Land mark studies, tagged chf, diastolic dysfunction, diastolic heart failure, diastology, ejection fraction, heart failure, heart failure with preserved EF, myocardium, nejm, restrictive lv function on August 11, 2008 | 1 Comment »
The long standing controversy about diastolic heart failure is settled !
The perception that diastolic heart failure ( Now renamed as heart failure with preserved EF ) is less dangerous than systolic HF has been exposed by this land mark study by Owan TE, in 2006 (nejm) But unfortunately this information is not yet fully disseminated [...]
Reciprocal ST elevation in unstable Angina
Posted in Cardiology - Electrophysiology -Pacemaker, cardiology -ECG, tagged ECG, electro physiology, myocardial infarction, nstemi, reciprocal changes, reciprocal st depression, stemi, unstable angina on August 10, 2008 | Leave a Comment »
Is reciprocal ST segment changes occur only in STEMI ? Can it occur in UA/NSTEMI ?
Even after 100 years of electro cardiology the electrophysiological mechanism of ST elevation in STEMI and ST depression in Unstable angina is still in the hypothetical stages. One popular theory says that the current of injury as we see as ST segment [...]
What are the angiographic correlates of lateral myocardial infarction ?
Posted in Infrequently asked questions in cardiology (iFAQs), cardiology- coronary care, tagged circumflex, coronary angiogram, lateral myocardial infarction, left anterior descending, nstemi, ramus, stemi on August 9, 2008 | Leave a Comment »
Lateral myocardial infarction is not a common site when compared to anterior and inferior MI. But the lateral MI has some unique features, since it involves free wall of the ventricle.The laplace law mediated wall stress is more as the dyskinetic segments bulge with a long radius .Due to this, lateral MI has a [...]