12导联动态心电图对冠心病的诊断价值

Diagnostic value of 12-lead dynamic electrocardiogram in coronary atherosclerotic heart disease

目的探讨12导联动态心电图对冠状动脉粥样硬化性心脏病(冠心病)的诊断价值。方法66例疑似冠心病患者行常规和12导联动态心电图检查。以冠状动脉造影检查为金标准,比较常规心电图和12导联动态心电图诊断冠心病的敏感度、特异度、预测准确度及冠状动脉病变的检出率。结果66例患者中经冠脉造影检查确诊54例。12导联动态心电图诊断冠心病的灵敏度、预测准确度、冠脉病变单支检出率及总检出率分别为88.9%、83.3%、100.0%、98.1%,均高于常规心电图的55.5%、54.5%、65.7%、66.7%(P<0.01或0.05)。结论12导联动态心电图对冠心病的诊断效能明显高于常规心电图。

Objective To explore the diagnostic value of 12-lead dynamic electrocardiogram(ECG)in coronary atherosclerotic heart disease(CAHD).Methods Sixty-six patients with suspected CAHD underwent conventional and dynamic ECG and coronary angiography.Based on the diagnostic results of coronary angiography(gold standard),the sensitivity,specificity,prediction accuracy,and detection rate of coronary artery diseases were compared between conventional and dynamic ECG.Results Fifty-four patients were diagnosed with CAHD using coronary angiography.The sensitivity,prediction accuracy,and detection rate of single branch lesion and coronary artery diseases were respectively 88.9%,83.3%,100.0%,and 98.1%in dynamic ECG;and 55.5%,54.5%,65.7%,66.7%in conventional ECG.These parameters were higher in dynamic ECG than in conventional ECG(P<0.01 or 0.05).Conclusion The diagnostic efficacy of dynamic ECG is superior to that of conventional ECG in CAHD.