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目的评价心电图对急性下壁心肌梗死患者梗死相关血管判断的临床意义。方法选择2001年6月至2006年10月急性下壁心肌梗死患者132例,对其心电图及冠状动脉造影资料进行回顾性分析。结果132例中,右冠状动脉为梗死相关血管者102例(76.3%),左回旋支为30例(24.3%),S-TⅢ/S-TⅡ抬高比值>1、S-TV4R抬高≥0.5mm、S-TaVL>S-TⅠ压低提示右冠状动脉为梗死相关的血管;而S-TⅢ/S-TⅡ抬高比值<1、S-TⅠ抬高提示左回旋支为梗死相关的血管。结论心电图中S-TⅢ/S-TⅡ抬高比值、S-TaVL、S-TⅠ及S-TV4R变化可作为急性下壁心肌梗死患者梗死相关血管的临床判断指标。
Objective To evaluate the clinical significance of electrocardiogram (ECG) in judging infarct-related blood vessels in patients with acute inferior myocardial infarction. Methods A total of 132 patients with acute inferior myocardial infarction from June 2001 to October 2006 were retrospectively analyzed for their electrocardiogram and coronary angiography data. Results Among the 132 cases, the right coronary artery was infarct-related artery in 102 cases (76.3%), the left circumflex artery branch was in 30 cases (24.3%), the ratio of S-TⅢ / S-TⅡlevel was> 1 and S-TV4R elevation≥ 0.5mm and S-TaVL> S-TⅠwere suggested that the right coronary artery was an infarct-related artery. The ratio of S-TⅢ / S-TⅡincrease <1, S-TⅠ elevation suggested that left circumflex artery was an infarct-related artery. Conclusion The changes of S-TⅢ / S-TⅡlevel, S-TaVL, S-TⅠ and S-TV4R in ECG can be used as clinical indicators of infarction-related blood vessels in patients with acute inferior myocardial infarction.