Objective To explore the clinical signiifcance of ECG changes in acute inferior myocardial infarction prediction.Methods The choice of 62 cases of acute inferior myocardial infarction in our hospital from (AMI) patients as the object, according to infarct artery would be divided into two groups, namely RCA group and LCX group, were performed on the electrocardiogram inspection, to compare on the relationship between the change of electrocardiogram and infarct artery.Results The incidence of patients in the RCA group, STV1depression, STV2 down ST1 elevation was greater than or equal to 0.5 mm, ST1, STⅢ depression > 0.05 mm elevation was greater than or equal to STⅡ and STV1elevation was greater than or equal to 0.5mm of the LCX group was significantly higher than that of patients, there were significant differences, with statistical significance (P<0.05), patients in group RCA V3/ III was less than or equal to 1.2 generation rate compared with the LCX group, no statistical signiifcance (P>0.05).Conclusion Prediction in inferior wall acute myocardial infarction related artery, can play the role of a good prediction of ecg.%目的：对心电图变化在急性下壁心肌梗死预测中的临床意义加以探讨。方法选择我院收治的62例急性下壁心肌梗死（AMI）患者作为对象，按梗死动脉将其分为两组，即RCA组与LCX组，对其进行心电图检查，以对其心电图变化和梗死动脉之间的关系进行对比。结果 RCA组患者STV1压低、STV2压低、ST1抬高≥0.5 mm、ST1压低≥0.05 mm、STⅢ抬高≥STⅡ及STV1抬高≥0.5 mm等发生率显著高于LCX组患者，差异存在显著性，有统计学意义（P＜0.05）；RCA组患者V3/Ⅲ≤1.2的发生率与LCX组相比，无统计学意义（P＞0.05）。结论在急性下壁心肌梗死相关动脉的预测当中，心电图能发挥较好的预测作用。
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