Multivariate logistic regression analysis of risk factors for AF including epicardial adiponectin as an independent variable shown older age and epicardial adiponectin levels as independent predictors of postoperative AF suggesting the important role adiponectin plays as an anti-inflammatory mediator in such patients [41]. We think that serum omentin-1 and adiponectin show potential serum or laboratory markers to detect AF in obese patients. The gene discussed is ADIPOQ; the disease is atrial fibrillation.