Understanding Atrial Fibrillation (AFib): Types, Symptoms, and Procedures
Afib refers to atrial fibrillation (AF), a kind of arrhythmia, or irregular heartbeat. Afib is caused by highly rapid and irregular heartbeats from the heart’s upper chambers (often exceeding 400 beats per minute). It happens when the upper chambers of the heart, known as the atria, quiver or fibrillate instead of contracting properly. This abnormal …