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A 38-year-old member asked:

What causes atrial fib?

3 doctor answers4 doctors weighed in
Dr. Colin Kerr
Family Medicine 45 years experience
Atrial fibrillation: The two most common causes of atrial fibrillation are hyperthyroidism (overactive thyroid) and degenerative disease of the cardiac conduction system as we get older. Other causes include heart surgery, alcohol (chronic intoxication), and conditions which enlarge the atria (like heart valve problems).
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Dr. John Wylie
Internal Medicine 22 years experience
Many causes: There are many factors that can lead to atrial fibrillation. Common predisposing conditions include hypertension, heart failure, sleep apnea, and genetic predisposition.
Created for people with ongoing healthcare needs but benefits everyone.
Dr.
A Verified Doctoranswered
A US doctor answeredLearn more
Many causes: Most of the time however the cause is not clear. Electrical conductive disease, thyroid disease, coronary artery disease, cardiomyopathy, alcohol, drugs like amphetamines and cocaine or other speed like drugs. Also severe infections or physiologic stress can it also.These are but a few.
Created for people with ongoing healthcare needs but benefits everyone.

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Last updated Aug 28, 2017
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