急性下壁心肌梗死的房室传导阻滞及其罪犯血管

房室传导阻滞是急性下壁心肌梗死的常见并发症，而左、右冠状动脉病变均可导致下壁心肌梗死。由于心脏冠状动脉供血至心肌的部位及范围不同，因此其病变导致的心肌梗死的程度与范围也不尽相同，相应地可产生不同的心电图表现。丰富的临床经验和心电图知识有助于判断冠状动脉罪犯血管并确定其闭塞部位（近端、中端或远端），也有助于制定合理的紧急再灌注治疗方案，挽救患者生命。

Atrioventricular block in patients with acute inferior wall myocardial infarction and the infarction related artery

Atrioventricular block is a common complication of acute inferior wall myocardial infarc-tion.Both of left and right coronary artery disease can lead to inferior wall myocardial infarction.Since coronary artery supplies blood flow to different sites and areas of myocardium,the degree and scope of myocardial infarction resulted from artery lesions are also different,corresponding to various ECG mani-festations.Abundant clinical experience and electrocardiographic knowledge help to identify the infarc-tion related coronary artery and determine the sites of occlusion (proximal end,middle or distal end)and also help to work out a reasonable emergency reperfusion therapy to save patients'lives.