【摘 要】 目的 探讨冠心病(CHD)心电图的诊断价值,指导临床工作。方法 在选择性冠状动脉造影(CAG)的639例住院患者中,对常规心电图(ECG)检查进行CHD诊断价值的分析比较。并使用Spss 11.0统计软件分析包对数据进行R×C表x²检验。结果ECG检查的敏感性为77.2%,特异性为50.0%,假阳性率为50.0%,假阴性率为22.8%,阳性预测值为62.7%,阴性预测值为66.8%。心电图检查的阳性检出率随病变支数的增多而增高,冠状动脉狭窄单支病变为64.6%,双支病变为87.9%,三支病变为89.3%。结论 ECG可作为CHD筛选检查的首选方法,具有实用价值,用于发现院外及日常生活中的心肌缺血,是其他检查方法无法替代的。

    【关键词】常规心电图;冠心病冠状动脉造影术;冠状动脉粥样硬化

    【Abstract】 ObjectiveTo investigate the value of ECG in the diagnosis of coronary artery disease(CHD)so as to direct clinical work.MethodsThe diagnostic value of routine ECG was analyzed and compared in 639 patients with CHD confirmed by coronary angiography(CAG.). The data were analyzed by chi-square test using Spss 11.0 statistical analysis software package.Results The sensitivity of ECG was 77.2%, specificity 50.0%, false positive rate 50.0%, false negative rate 22.8%, positive predictive value 62.7% and negative predictive value 66.8%.The positive rate of ECG rose with the increase of number of stenosed coronary vessel. The coronary stenosis rate in single vessel was 64.6%,two vessels 87.9%,three vessels 89.3%.ConclusionIt is suggested that ECG is the first choice for the screening of CHD. It has practical value to examine the patient with coronary heart disease outside hospital or in daily life, which cannot be substitute by other methods. ......