Postoperative atrial fibrillation

Genotype looms large in risk for post-op arrhythmia

Postoperative atrial fibrillation (PoAF), a form of arrhythmia, complicates 20-40% of cardiac surgical procedures and 10–20% of non-cardiac thoracic operations, cropping up two to four days after surgery to pose risk of stroke, heart attack, mortality, longer hospital stays and greater cost.