心房颤动(Atrial fibrillation,AF,以下简称房颤),是临床上十分常见的一种心律失常,其发病率可随着年龄的增加有明显增高。目前房颤的药物治疗包括复律并维持窦律、控制心室率及抗凝治疗,但临床上所用的复律并维持窦律的抗心律失常药物转复成功后,能长期维持窦律者不到一半,且 Atrial fibrillation (AF, hereinafter referred to as atrial fibrillation), is a clinically very common type of arrhythmia, its incidence can be significantly increased with age. At present, the drug treatment of atrial fibrillation, including cardioversion and maintain sinus rhythm, control ventricular rate and anticoagulant therapy, but the clinical use of cardioversion and maintain anti-arrhythmic sinus rhythm Drugs to restore success, the long-term maintenance of sinus rhythm who do not To half, and