Harvard Heart Letter
Zap away atrial fibrillation?
Catheter ablation, a procedure that destroys faulty electrical pathways in the heart, is gaining ground. Atrial fibrillation — called afib for short — is a rapid, irregular heartbeat caused by errant electrical signals in the heart’s upper chambers (atria). This heart rhythm disorder becomes more prevalent with age, affecting about one in 11 people ages 65 and older.