Heart & Cardiology/Study


Hello Dr Richardson, thanks for your inputs. Greatly appreciated.

The danger with Internet nowadays is clearly that it doesn't take much to develop cyberchondria...nevertheless i have to ask since I came about this study http://circ.ahajournals.org/content/121/17/1904.long and was very anxious and confused. Have  read your posts that there is no real correlation between pvcs etc and other cardiac problems etc. Sorry for asking you but what is your opinion on this and are there any contradiction to what is discussed ?

Many regards from London
John Clack

Hello Mr. Clark,

Thanks for the reference. I had not seen it.  Note that the confidence limits are 1.06 and up.  So the chance of trouble from atrial premature beats is small.  Atrial fib is now well managed, with stroke and death rates much lower than in the years of the study.  Perhaps I'm being overly optimistic, but I still think APCs are benign.

Please write back if this note doesn’t answer all your questions.

David Richardson

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David Richardson


Adult heart function and disease. Not very good about children lesss than 12. Hypertension is o.k. Heart rhythm a special interest.


Certified in cardiology by the American Board of Internal Medicine. Was chairman of division of cardiology at the Medical College of Virginia. Am now mostly retired.

Fellow of American Heart Association and American College of Cardiology and member of American Physiological Society..

Circulation, American Heart Journal, Hypertension.

M.D. from Harvard Medical School. Residency training at Yale Uhniversity School of Medicine and Medical College of Virginia.

Awards and Honors
Gold Heartt Award from American Heart Association in 1995.

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