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急性下后壁心肌梗塞70例心电图分析显示:Ⅱ、Ⅲ导联 ST 段抬高均大于1mm,Ⅲ导联抬高幅度大于Ⅱ导联(STⅢ/Ⅱ>1),与国外尸检发现相似。右室梗塞29例中检出26例(89.66%),无右室梗塞41例中检出15例(36.59%),二组间 STⅢ/Ⅱ>1检出率比较有非常显著性差异(P<0.001)。故可作为急性下后壁并右室梗塞的诊断依据之一,其敏感性、特异性分别为89.66%、63.41%,阳性预告值为63.41%,假阳性率为36.59%。
The electrocardiographic analysis of 70 patients with acute inferior posterior myocardial infarction showed that the ST segment elevation in both lead and lead was greater than 1 mm, and the elevation of lead in lead Ⅲ was greater than that in lead Ⅱ (ST Ⅲ / Ⅱ> 1). Right ventricular infarction in 29 cases detected in 26 cases (89.66%), without right ventricular infarction in 41 cases were detected in 15 cases (36.59%), the two groups of ST Ⅲ / Ⅱ> 1 detection rate was significantly different (P <0.001). It can be used as a diagnosis of acute posterior wall and right ventricular infarction based on one of its sensitivity, specificity were 89.66%, 63.41%, positive predictive value was 63.41%, the false positive rate was 36.59%.