冠脉三支病变心电图分析

Analysis of the electrocardiograms of pathological changes in three main coronary arteries

目的对冠状动脉造影确诊为三支病变的病例的心电图进行分析。方法分析113例心肌酶正常的经冠状动脉造影确诊为三支病变的病例的心电图，根据血管狭窄程度将病人分为仅有狭窄无闭塞为狭窄组和有确切血管闭塞为闭塞组进行对比研究。结果经分析发现两组的心电图存在异常Q波、ST段异常、T波异常的比率都是血管闭塞组较高（P〈0．05），心律失常的发生率则是血管狭窄组较高（P〈0．05），两组患者心电图无异常的几率基本一致。结论心电图对心肌酶正常的冠脉三支病变患者病变程度的诊断有一定帮助，但还需其他手段辅助。

Objective To evaluate the diagnostic value of the electrocardiogram in patients with pathological changes in three main coronary arteries this had been established by coronary augiography. Methods Retrospectively analyzed the electrocardiogram data from113 patients with normal level of myocardial enzymes and pathological changes in three main coronary arteries which had been established by coronary angiography. The patients were divided into two groups： only coronary stricture was found （ A ）; and coronary occlusion was found （ B ）.Results The incidences of abnormal Q wave, abnormal ST segment, abnormal T wave, and in group B were higher than those in group A, and the incidence of arrhythmia in group A was higher than that in group B. No between-group difference was found in the incidence of abnormal ECG. Conclusions ECG can help diagnose patients with normal level of myocardial enzymes and pathological changes in 3 main coronary arteries but must with other methods.