
Archive for the ‘wisdom in cardiology’ Category
Who is guiding the guidelines?
Posted in bio ethics, Cardiology quotes, Centre for cardiology unlearninng, Medcal research, Medical education, Medical ethics, medical quotes, Quotes, Science and Religion, Uncategorized, wisdom in cardiology, tagged best quote on medical education, cardiology quotes, dr venkatesan cardiologist, guidelines protocols recommendation acc aha esc scai, medical ethics, venkat quotes on July 14, 2022|
Sudden cardiac death of an Indian superstar and the “Non-academic aftermath”
Posted in acute coronary syndrome, Cardiology -unresolved questions, RIsk factors, wisdom in cardiology, tagged aha guidelines acc physical activity exertion, coronary risk factors, scd on November 4, 2021|
A young Indian superstar actor Punnet Rajkumar, suffered a sudden cardiac death last week during a workout at his gym. We don’t really know what happened, was it really a conventional heart attack ? or simply an exercise Induced arrhythmia or an isometric dissecting injury to the coronary arterial (or Aortic) wall. Only a postmortem would have thrown some light. (I am not sure what the ER room ECG showed though) He had excellent physical fitness and was following a good healthy lifestyle. One possibility is extreme physical exertion.
It is ironic, while a sedentary lifestyle is a chronic coronary risk factor, excessive physical activity in the background of emotional stress can be turn out to be an acute risk factor. (This is not to frighten all those young and energetic, it only conveys a simple message. Moderation is a must in any indulgences in life)
AHA has made an elaborate scientific statement on this Issue.
Meanwhile, the entire nation went into cardio-panic mode and TV media houses have become free cardiology consultation rooms. How many will realize sudden cardiac arrest and heart attacks can be totally two different entities. Further, who can teach the public, that endpoint of any life has to be cardiac arrest or a standstill. How unscientific does it sound when someone suggests a CT angiogram for all aged over 40 years ? Guess, who will enjoy whipping and sustaining such a frenzy.
Here is a precise article in Indian express that puts this episode into perspective.
The author is Dr. Ganesan Karthikeyan, professor of cardiology at AIIMS with a Global reputation.
Perils of sixth sense : SPRINT trial, a false GOD in a hypertensive world !
Posted in Ethics in Medicine, hyperlipidemia, wisdom in cardiology, tagged acc aha 2017 american hypertension society, SPRINT trial on November 18, 2017| 2 Comments »
One big hypertension trial called SPRINT was published in 2015, has caused major delayed aftershocks in the hypertensive world now in 2017.
The new guidelines by 2017 AHA/ACC is based primarily on SPRINT data which in my opinion has so much flaws it shouldn’t have been accepted for publication in the first place. !(Intentions and Aim of a study can never be questioned even by most prestigious journals you know !)
- The flaws begin right from study design itself. Why diabetic population was excluded from the SPRINT trial is not clearly answered in the true interest of public.The Ironical argument is diabetic patients had no benefit with intensive BP management in ACCORD study. So why waste another study ! Funny is in’t?
- When CVD risk profile is intimately linked with these two major entities (DM/HT) it defies sense to exclude one them from the study, which is going to assess population based total CVD risk reduction.
- Another dramatic confounder is , 90% of SPRINT patients were taking baseline anti HT drugs. So, the original pressure of these people (No,they are patients really !) should have been high . (If you apply this logic , SPRINT study conclusions will not apply for general population who are healthy and free from drug intake! )
- SPRINT trial also concluded there is little benefit in acute MI and renal protection. The main benefit that tilted in favor of SPRINT was preventing episodes of cardiac failure which was defined by the primitive , subjective , ever unreliable symptomatology of exertional dyspnea.
The ultimate spoiler in SPRINT
The modality of BP measurement in SPRINT trial can be termed as as a single fit case for rejecting the study in the world hemodynamic court !
We know BP is a continuous variable, between machines , timing of measurement, persons who measure , hand to hand , beat to beat variation etc etc. The SPRINT BP data was accrued high-profile “Research standard BP” measured by oscillometry method. Please hold your breath , . . these machines never measure either systolic or diastolic BP.It detects the peak oscillations from brachial artery when the cuff is deflated and ask the vendor dependent fuzzy logic algorithm to do a guess work of SBP and DBP , which proudly flashes them in various LED colors.
The jury is still out whether the methodology is validated or not. SPRINT data should be thoroughly sanitized with a true clinic BP which would virtually mean , recall of this (de) famed study !
Final message
How can such a flawed study be taken as reference for creating major revision of Hypertension guidelines?
This question is to be asked in chorus by all respectable physicians and cardiologists.The World health organisation -WHO , custodian of human health and the silent watch “puppy” has more work to do ! . . please WHO , wake up and bark !
Reference
2.http://www.acc.org/latest-in-cardiology/articles/2015/12/01/10/04/the-sprint-trial-cons
3.http://www.cardiobrief.org/2017/02/08/new-questions-raised-about-sprint/