Heart & Cardiology/Left atrial appendage


Hello: I was wondering if the left atrial appendage size varies from person to person,and if there is a test to determine this? A close friend,a fellow in his 60s, has idiopathic paroxysmal atrial fibrillation,and this came up in our conversation.

Hello Michael,

Yes the left atrial appendage can vary in size and shape.  Echocardiography can determine its size and shape, but its size and shape are not very important.  What's important is whether the left atrial appendage contains clots, also determined by echo.

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

David Richardson

Heart & Cardiology

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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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