心房颤动(Af)是临床上最常见的快速性心律失常之一,有较高的致残率和致死率,是脑卒中最强的独立危险因素,15%的脑卒中事件与Af有关〔1〕。因此,恢复窦性心律不仅可改善症状,而且可减少血栓栓塞,降低患者死亡率。临床上,Af多发于高血压、慢性心力衰竭、冠心病及瓣膜病变等基础病 Atrial fibrillation (AF) is one of the most common tachyarrhythmia clinically, with high morbidity and mortality, the strongest independent risk factor for stroke, and 15% of stroke events related to Af [1 ]. Therefore, the restoration of sinus rhythm not only can improve the symptoms, but also reduce thromboembolism and reduce patient mortality. Clinically, Af occur in hypertension, chronic heart failure, coronary heart disease and valvular diseases and other basic diseases