Archive for the ‘Diabetes and Heart’ Category

  • Diabetes mellitus is a pro-coagulant state,especially so in severe uncontrolled states.(1)
  • This is mediated by increased  levels of   plasminogen  activator Inhibitor.(PAI 1 and 2
  • This tilts  anti-fibrinolytic  forces towards thrombosis.
  • High PAI-1 is an Independent risk factor for MI in young individuals (3)
  • During STEMI the success rate of  fibrinolysis is significantly lower in diabetic population because high levels of PAI 1 .
  • The triad of DM,Obesity, Insulin resistance is a powerful predictor of  poor  response to thrombolysis.


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In the  2013 American diabetic association(ADA)  annual meet  a paper was presented   which raised  many eye brows ! . The  results were flashed across mainstream media. Published in New England journal of medicine online.

Look Ahead ADA lifes style  NEJM

It may be a  well conducted  trial  but  poorly interpreted  one . It reports one of  the dubious   observations  as a major conclusion  and  confuse the public.

Life style modification is the key to prevent  major diabetic  and cardiac events  . This is well  proved beyond doubt.

Epidemiological evidence  from various  global health  statistics  accumulated over a century will vouch for primary prevention of  diabetic and cardio vascular disease .

Link to Editorial on Look Ahead  : http://www.nejm.org

Why this study wants to make  a mockery of this fact ?  .Fortunately the accompanying  editorial  has  realistically  reported the implications of this study.

Final message

I argue the medical fraternity and patients to ignore this  study . It can be convincingly concluded something is seriously wrong with the outcome analysis  ,  however  modern may be the statistics. Some  groups are obviously worried about the natural and effective control of diabetic by good life style alone . It is a clear case of confusing the public .

There is huge collective evidence  and  common sense  for the  increased physical activity to reduce  cardio vascular risk  (INTERHEART)

Final Message

If life style modification is not going to help  . . . what is the alternative  to our patients ?

Drugs . . . yes  . . . one has to depend on it   . . . this study  seems to suggest .

To me, this is  a dangerous study   . It  plays a spoil sport on a great fact and  belief . This paper  should never have been published in a journal  like  NEJM . Atleast the conclusion  should  have  been re-written !

I guess this study would  promote the  Homo-sapiens  to  be inactive  and  make them diabetic and  consume drugs  perennially !



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Those who answered  “Yes” ,  can leave this article . Those who answered  “No” read further .

* Logic would tell us myocardial revascularisation should correct  stress induced ischemia and it  should disappear promptly  . This does not happen in all cases  real world  ! That is  why medicine is  different  from mathematical science .

Some of the  reasons for  persistence of stress positivity even after an apparently successful PCI are  . . .

  1. Incomplete  correction of ischemia. (Ideally  to be referred as failed PCI )
  2. Error in Identifying culprit 9Angina related artery ) .Common feature of poorly worked up  multivessel CAD.
  3. Re-stenosis /Re-occlusion
  4. Doing very early stress test without giving time for revascularisation to work *
  5. Rapid progression of non culprit lesions .(Sub -optimal medical management )
  6. Chronic N0-Reflow phenomenon  surrounding  area of infarct .(Especially in  PCI of CTOs)
  7. Dyskinetic  or grossly remodeled ventricular segments  can result in non ischemic positive EST response (ST drag **)
  8. Associated systemic conditions especially  Anemia/ SHT & LVH -(False positive )
  9. Many diabetic patients may  continue to show stress ischemia due to  small vessel disease.
  10. A  patient with  syndrome X  characters  can have incidental  epicardial lesion as well . In such a patient EST will always be positive .

* Optimal time to do  EST  for assessing the  efficacy of  PCI/CABG is not established .Six months may be the reasonable point .If done within 2- 3 months it may  end  up  in embarrassment for the Interventionist . (So only it is kept at 6 months , this also help us  greatly  as  we can always blame it on poor life style control and progression of  the disease !)

** No reference  for this  , a  personal observation .We know  Q leads following MI ,  will show ST elevation during stress test especially if the segments are dyskinetic  . In leads diagonally opposite to q leads ,  ST depression is observed . This may not be  a evidence for true  ischemia . It probably represents   ST drag due to mechanical stretch .

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