急性前壁心肌梗死时下壁导联ST段改变的临床价值

Clinical Value of ST-segment Changes in Inferior Leads of ECG in Acute Anterior Myocardial Infarction

目的 探讨急性前壁心肌梗死病人下壁导联ST段改变的临床价值。方法 对 93例冠状动脉左前降支 (LAD)单支病变所致急性前壁心肌梗死病人 ,根据早期心电图下壁导联ST段改变将其分为压低组、抬高组、无改变组 3组 ,与冠状动脉造影结果进行分析比较。结果 下壁导联ST段压低组中 71.4%为LAD非包绕型近端病变 ;抬高组中 61.5 %为LAD包绕型远端病变 ;无改变组中LAD包绕型近端病变和LAD非包绕型远端病变所占比例相近。结论 急性前壁心肌梗死病人下壁导联ST段改变与LAD形态及病变部位有关。

Objective The study evaluated clinical value of ST-Seg ment Changes in inferior leads of ECG in acute anterior myocardial infarction.Methods 93 patients of LAD lesions were divided into three groups:ST depression group,ST elevation group,no-ST-change group based on ST-Segment changes in the inferior leads.All the three groups' data were compared with their coronary angiographic findings.Results 71.4% of ST depression group were proximal lesion of non-LAD wrapped.61.5% of elevated ST group with acute myocardial infarction in the anterior wall were distal lesion of LAD wrapped.In no-ST-change group,percentage of LAD wrapped proximal lesion was almost the same as the non-LAD wrapped distal lesion.Conclusion ST-Segment changes in inferior wall leads during acute myocardial infarction in the anterior wall were associated with the morphology and the lesion site of of LAD.