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我国脑血管意外的年发病率为对717/10万，每年累积脑血管意外病人40～50万人[1]。在缺血性脑梗死的发病中，心源性血栓引起脑梗死日益受到人们的重视，心房纤颤（AF）是引起脑梗死的一个重要原因。老年人AF并发脑梗死和脑动脉粥样硬化基础上的脑血栓形成所致的脑梗死在发病原因
The annual incidence of cerebrovascular accidents in our country is 717/10 million, with an annual cumulative incidence of 400,000 to 500,000 patients with cerebrovascular accidents [1]. In the pathogenesis of ischemic cerebral infarction, cerebral infarction caused by cardiac thrombus has been paid more and more attention. Atrial fibrillation (AF) is an important cause of cerebral infarction. Cerebral infarction caused by cerebral thrombosis on the basis of cerebral infarction and cerebral atherosclerosis in the elderly with AF