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目的观察扩张型心肌病心电图改变。方法38例经心脏超声检查诊断为扩张型心肌病的病例入选。结果所有病例心电图均有异常改变,其中以ST段下移最为常见(78.9%),其次是一度房室传导阻滞(39.4%)和室性早搏(34.2%),对心电图各波段测定,显示QRS时限延长明显(115±34.5)ms与心脏超声检查测定的左室大小呈线性正相关。结论提示对于心电图出现QRS时限延长或ST段下移,或I度房室传导阻滞或室性早搏者,有必要进行心脏超声检查,对有多源、频发室早或短阵室速出现,往往与病情严重程度密切相关。
Objective To observe the changes of electrocardiogram in dilated cardiomyopathy. Methods 38 cases were diagnosed as dilated cardiomyopathy by echocardiography. Results All cases had abnormal ECG changes, of which ST segment depression was the most common (78.9%), followed by atrioventricular block (39.4%) and ventricular premature beat (34.2%). Electrocardiogram measurements showed QRS The prolongation of time (115 ± 34.5) ms was linearly correlated with left ventricular size measured by echocardiography. Conclusions It is necessary to perform echocardiography for QRS prolongation or ST segment depression or I degree atrioventricular block or premature ventricular premature beat in ECG, , Are often closely related to the severity of the illness.