冠心病多支病变的心电图特征

The ECG characteristic for identifying the multiple-vessel lesions in patients with coronary heart disease

目的 :探讨冠心病时心电图对多支病变的识别价值。方法 :回顾性研究分析 192例冠心病的心电图与冠状动脉造影 (CAG)资料。根据CAG确定病变范围 ,以心电图aVF导联低电压 (指标A)及≥ 6个导联ST T改变 (指标B)作为判别标准。结果 :192例患者中 ,非多支病变 139例 (含单支病变 74例 ,双支病变 6 5例 ) ,多支病变 5 3例 ;指标A、指标B、“A或B”、“A和B”识别多支病变的敏感性和特异性分别为 5 6 .6 0 %、6 9.78% ;77.36 %、6 1.87% ;92 .4 5 %、4 4 .6 0 % ;4 1.5 1%、86 .33%。“A或B”识别多支病变的敏感性最高 ,“A和B”识别多支病变的特异性及准确性 (75 .0 % )最高。结论

Objective:To explore the value of ECG characteristic for identifying the multiple-vessel lesions in patients with coronary heart disease (CHD). Method:Retrospective analysis was performed in 192 patients with CHD by comparing the findings of ECG and CAG. The different scopes of lesions were identified by CAG,and low-voltage in lead aVF( A) and ST-T changes in more than 6 leads (B) on ECG were identified as criteria. Result:A total of 192 cases were studied, including one-vessel lesion 74 cases, two-vessel lesion 65 cases and multiple-vessel lesions 53 cases. Criteria A, criteria B, A or B, A and B, may identify the multiple-vessel lesions, the sensitivity and specificity for predicting the multiple-vessel lesions were 56.60%, 69.78%; 77.36%、 61.87%; 92.45%, 44.60%; 41.51%, 86.33%, respectively, the sensitivity of the criteria A or B was the highest , and the specificity of the criteria A and B was the highest ( 75.0%). Conclusion: The ECG characteristic are helpful to identify preliminarily the multiple-vessel lesions in patients with CHD.