急性心肌梗死心电图改变与冠状动脉造影分析

目的探讨急性心肌梗死(AMI)心电图改变与病变冠状动脉关系。方法对123例急性心肌梗死的心电图改变与冠状动脉造影对比分析。结果(1)67例前壁AMI中,58.2%合并下壁Ⅱ、Ⅲ、avF ST段压低,这与前降支病变部位有关,与多支病变无关;(2)56例下壁AMI中64.3%合并胸导联ST段压低,亦与多支病变血管无关,但胸导V1V2无压低改变,有助于识到右冠状动脉(RCA)为梗死相关动脉(IRA)。结论急性心肌梗死非梗死部位ST段改变与相关梗死动脉及其部位有关。

Analysis of electrocardiogram and coronary angiography on patients with acute myocardial infarction

Objective To investigate the relation between acute of myocardial infarction electrocardiographic changes and infarction relative artery.Methods The surface electrocardiographic changes of 123 patients with acute myocardial infarction were compared with their conoary angiography.Results (1) Among 67 patients with anterior wall infarction, 52% of patients had depression in lead Ⅱ、Ⅲ、avF, and it is not associated with mutil-vessel lesions,but with left anterior descending conoary antery lesion proximal to the first diagonal brunches.(2) Among 56 patients with acute interferic myocardial infarction 37.5% had depression in lead V_1-V_6, and it is not associated with mutil-vessel lesions, but no depression in lead V_1V_2 have important value in identifying the infarctic related artery(IRA).Conclusion ST-segment depression on patients with anterior myocardial infarction is associated with LAD proximal lesion, ST-segment changes in leads V_1V_2 on patients with interior myocardial infarction is associated with IRA.