The study of the safety and efficacy of different antithrombotic therapy after left atrial appendage closure

Background It’s essential to prevent from thrombosis on device without increasing the risk of bleeding complications after successfully implanted left atrial appendage device.At present,no guidelines recommend about postoperative antithrombotic therapy of left atrial appendage closure(LAAC).The purpose of this study is to investigate the safety and efficacy of different antithrombotic therapies after LAAC.