American Heart Association volunteer expert, Kenneth A. Ellenbogen, M.D., is Kimmerling professor of Cardiology, Chair, Division of Cardiology, VCU Pauley Heart Center, Medical College of Virginia / VCU School of Medicine, Richmond, Virginia.

Offering perspective on AHA Scientific Sessions 2020 Presentation P687 
copyright American Heart Association 2020

"AFib is just an abnormal heart rhythm that affects the upper chamber of the heart and is associated with an irregularity or frequently an irregular heart rate, that often is rapid at rest or rapid with exercise, and is often associated with some sort of cardiac symptoms, although some people can be asymptomatic, completely asymptomatic, they may not know they have atrial fibrillation, unless they go to the doctor and the doctor reports an EKG, because their heart rate is irregular. Or unfortunately, some people don't find out about atrial fibrillation til they end up in the hospital with a stroke, then they find out they're in atrial fibrillation."