Changes of Left Atrial Function and Quality of Life After Transcatheter Closure of Left Atrial Appendage in Patients With Atrial Fibrillation

Left atrial appendage closure is performed using a single endocardial plug devices guided by fluoroscopic guidance and transesophageal echocardiography

Each patient with persistent AF receives circumferential pulmonary vein isolation under the 3D electro-anatomical mapping system , and no additional ablation is performed in the extrapulmonary sites unless the patient is diagnosed with atrial flutter before the operation.

Each patient received the same group of patients with simple radiofrequency ablation radiofrequency ablation treatment at the same time, the transcatheter occlusion of left atrial appendage opening