【摘要】 扩张型心肌病常合并心房颤动，但该类患者发生急性ST段抬高型心肌梗死在临床上非常罕见。该文报道了1例因急性ST段抬高型心肌梗死就诊的患者，急诊冠状动脉造影结果为前降支中段闭塞，予血栓抽吸后再通，未植入冠状动脉支架。1周后复查冠状动脉造影前降支未见明显狭窄。行血管内超声提示前降支未见明显斑块及管腔狭窄。结合心脏超声、心电图结果可诊断扩张型心肌病合并阵发性心房颤动，故推测为冠状动脉血栓栓塞导致AMI。

    【关键词】 扩张型心肌病;阵发性心房颤动;ST段抬高型心肌梗死;冠状动脉血栓栓塞

    【Abstract】 Dilated cardiomyopathy is constantly complicated with atrial fibrillation. However， the incidence of ST-segment elevation myocardial infarction is extremely low in patients with dilated cardiomyopathy complicated with atrial fibrillation in clinical practice. In this article ......