ST. LOUIS — 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 ...

The dangerous heart rhythm disorder called atrial fibrillation is becoming more common in middle-aged people, a new study warns. More than a quarter of patients at the University of Pittsburgh Medical ...