Lu Chen, M.D., is a cardiologist specializing in electrophysiology with MyMichigan Physicians Group.

Atrial fibrillation, also called AF or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia. It means your heart’s normal rhythm is out of whack. Because your ...

The incidence of atrial fibrillation approximately doubles with each decade of adult life and ranges from 2 or 3 new cases per 1000 population per year between the ages of 55 and 64 years to 35 new ...

Valvular atrial fibrillation (A-fib) involves a condition that leads to an irregular or abnormal heart rhythm. This can increase a person’s risk of cardiovascular complications, such as stroke.

When you put your hand on your chest, you might feel your heart's familiar lub-dub beat. If your heart races or the beats feel irregular and the feeling lasts for a few minutes, that’s a sign you ...