[摘要] 急性心肌梗死但冠脉造影未见阻塞的患者可诊断为冠状动脉非阻塞性心肌梗死(MINOCA)，其包含多种疾病的临床综合征。其中MINOCA占急性心肌梗死的1%～14%，其发病机制可分为心源性及非心源性。因其可能存在一种或合并多种病因，不同病因的治疗及预后亦不相同。血管内超声、心脏磁共振、冠脉CT等检查对于进一步评估明确诊断疾病具有重要作用。

    [关键词] 心肌梗死；非阻塞性冠状动脉；微血管功能障碍；斑块破裂

    [中图分类号] R542.22 [文献标识码] A [文章编号] 1673-9701(2017)07-0165-04

    [Abstract] Acute myocardial infarction patients without obstruction of coronary angiography can be diagnosed with myocardial infarction with non-obstructive coronary artery(MINOCA)， which contains clinical symptoms of multiple diseases. MINOCA accounts for 1%-14% of acute myocardial infarction. The pathogenesis can be divided into cardiogenic and noncardiogenic aspects.Because it may exist one or a combination of multiple etiologies ......