What is atrial fibrillation (aFib)?

Devender N. Akula, MD

So the heart normally beats with a regular rate and rhythm. In atrial fibrillation, the top chambers of the heart beat irregularly. It’s something that we are seeing more commonly now and as people get older, it seems to happen more frequently. For example the prevalence is less than 2% in people who are less than 65 years old and above 65 the prevalence increases to about 9-10%.

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