Atrial Fibrillation and Stroke: Important Information to Know

Published on Apr 09, 2019
Medically reviewed by George H. Sands, MD, FAAN, FAHA

Download here: Atrial Fibrillation and Stroke: Important Information to Know

Atrial fibrillation (AFib) is the most common type of irregular heartbeat (or arrhythmia) in the US, affecting an estimated 2.7 million to 6.1 million people. When a person has AFib, his or her heart can beat too slowly, too fast, or in an irregular rhythm. When this happens, blood doesn’t flow the way it should from the upper chambers of the heart (called the atria) to the lower chambers (called the ventricles). This increases a person’s risk for having a stroke.

Learn more about AFib and the risk of stroke below, then talk with your healthcare provider to learn more about what you can do to help manage it.


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George H. Sands, MD, FAAN, FAHA is a Senior Medical Director in U.S. Medical Affairs for Cardiovascular and Metabolic Diseases at Pfizer.

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