Dr. Paban Saha, an Electrophysiologist with Prairie Cardiovascular, discusses atrial fibrillation. What is Atrial Fibrillation (A-fib)?A-fib is a common heart condition where the heart beats ...

Atrial fibrillation occurs when action potentials fire very rapidly within the pulmonary veins or atrium in a chaotic manner. The result is a very fast atrial rate — about 400 to 600 beats per ...