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目的比较冠状动脉造影(CAG)与常规心电图检查(ECG)诊断与临床使用价值。方法 329例临床怀疑冠心病、心绞痛的住院患者,行常规心电图和冠状动脉造影术检查。对常规心电图检查结果与冠状动脉造影结果比较,以冠状动脉造影结果作为诊断的金标准,计算出常规心电图检查对冠心病、心绞痛的准确性指标。结果常规心电图冠心病、心绞痛的灵敏性为85.9%、特异性为58.3%、假阳性率为41.6%、假阴性预测值为18.8%,阳性预测值为72.1%,阴性预测率为60.4%。ECG检查对冠状动脉狭窄单支病变检出率为67.5%,双支病变为85.0%,三支病变为88.6%。结论常规心电图检查对冠心病的诊断具有良好的诊断价值,是筛选冠心病的首要有效手段,但应结合临床症状和酶学变化等,亦可作为行冠状动脉造影术的筛选手段。
Objective To compare the diagnostic and clinical value of coronary angiography (CAG) and routine electrocardiogram (ECG). Methods A total of 329 hospitalized patients with clinical suspicion of coronary heart disease and angina pectoris were examined by routine electrocardiogram and coronary angiography. Comparing the results of conventional electrocardiogram and coronary angiography, coronary angiography results as the gold standard for diagnosis, coronary heart disease, angina calculated by conventional ECG accuracy indicators. Results The sensitivity, specificity and accuracy of coronary heart disease and angina pectoris were 85.9%, 58.3%, 41.6%, 18.8%, 72.1% and 60.4% respectively. ECG examination of coronary artery stenosis single vessel disease detection rate was 67.5%, double-vessel disease was 85.0%, three lesions was 88.6%. Conclusion Conventional ECG has a good diagnostic value for the diagnosis of coronary heart disease. It is the primary effective method for screening coronary heart disease. However, it should be combined with clinical symptoms and enzymology changes as a screening method for coronary angiography.