One-third to one-half of patients with acute ST-elevation myocardial infarction (STEMI) have multivessel coronary artery disease (CAD). Their worse prognosis is possibly associated with additional plaque instability, impaired epicardial and microvascular myocardial perfusion, and cardiogenic shock.

中文翻译：

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压力下的表现：STEMI后的缺血评估。

急性ST抬高型心肌梗死（STEMI）的患者中有三分之一至一半患有多支冠状动脉疾病（CAD）。他们的预后较差可能与斑块不稳定，心外膜和微血管心肌灌注受损以及心源性休克有关。