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急性下壁心肌梗死是心血管内科常见的疾病,其住院病死率为2%~9%,通常由右冠状动脉或左回旋支闭塞引起,少部分可由前降支闭塞引起,其中右冠状动脉与左回旋支的比例在2.2∶1~7.0∶1,平均约3.9∶1。由于右冠状动脉与左回旋支的解剖及分布不同,故其闭塞导致的急性下壁心肌梗死的临床特征及心电图改变亦不相同。本文旨在对不同梗死相关动脉引起的急性下壁心肌梗死的临床特征及心电图改变作一归纳综述,指导临床工作。
Acute inferior myocardial infarction is a common cardiovascular disease, and its in-hospital mortality rate of 2% to 9%, usually caused by the right coronary artery or left circumflex artery occlusion caused by a small part of the anterior descending artery occlusion caused by the right coronary artery with The ratio of left circumflex branches is in the range of 2.2: 1 to 7.0: 1 with an average of about 3.9: 1. Due to the different anatomy and distribution of the right coronary artery and left circumflex artery, the clinical characteristics and ECG changes of acute inferior myocardial infarction caused by occlusion are also different. This article aims to summarize the clinical characteristics and ECG changes of acute inferior myocardial infarction caused by different infarct-related arteries to guide the clinical work.