房颤的发生率在一般人群中为0.4％～2.0％,年龄每增加10岁,发病率增加1.4倍。研究表明,房颤是发生中风的独立危险因素,15％以上的脑卒中由房颤引起,非瓣膜病慢性房颤病人中脑栓塞发病率是正常人的5倍,而在辩膜病慢性房颤病人中脑栓塞发病率达到正常人的17倍。80岁以上合并房颤脑卒中的患者达到25％,每1000人每年发生40次脑卒中。新近结束的AFFIRM和RACE结果显 The incidence of atrial fibrillation in the general population was 0.4% to 2.0%, with each additional 10 years of age, the incidence increased 1.4 times. Studies have shown that atrial fibrillation is an independent risk factor for stroke and more than 15% of stroke is caused by atrial fibrillation. The incidence of middle cerebral embolism in patients with nonvalvular atrial fibrillation is 5 times that of normal people. Fibrillation in the incidence of cerebral embolism reached 17 times normal. Patients over 80 years of age with atrial fibrillation stroke have a 25% incidence and 40 strokes occur every 1000 people annually. The newly concluded AFFIRM and RACE results were significant