New‐Onset Perioperative Atrial Fibrillation After Coronary Artery Bypass Grafting and Long‐Term Risk of Adverse Events: An Analysis From the CORONARY Trial

Background Perioperative atrial fibrillation (POAF) is common in patients undergoing cardiac surgery. Conflicting evidence exists whether patients with POAF after cardiac surgery have an increased long-term risk of stroke and other adverse events. Methods and Results We prospectively followed for up to 5 years 4624 patients without prior atrial fibrillation who underwent coronary artery bypass grafting in an international study. POAF was …