...院住院和门诊的心房颤动并发脑梗死患者进行回顾性分析,通过影像学资料分析NVAF和瓣膜性心房颤动（valvular atrial fibrillation,VAF）脑梗死患者的梗死类型和相关因素的联系,探讨NVAF发生脑梗死的可能机制。
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目的研究瓣膜性心房颤动（房颤）和非瓣膜性房颤患者左心房自发声学显影（SEC）的形成机制。
Objective To investigate the mechanism of left atrial spontaneous echo contrast(SEC)in patients with nonvalvular atrial fibrillation(NVAF)and valvular atrial fibrillation(VAF).
目的比较华法林和阿司匹林对非瓣膜性心房颤动患者的抗凝疗效。
Objective To explore the antithrombotic effects of warfarin and aspirin in nonvalvular atrial fibrillation.
目的：评价风湿性瓣膜病合并心房颤动（房颤）经导管射频消融的安全性和疗效。
Objective to evaluate the efficacy and safety of catheter ablation for atrial fibrillation(AF) in cases with rheumatic valvular heart disease.
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