原发性心肌病之心电图改变,以 ST-T 异常最多,其余为异常 P 波、左室肥大、电轴左偏、异常 Q 波、各种心律失常(特别是室性期前收缩)、QRS 间期增宽及低电压等,为非特异性所见。1.充血型心肌病的心电图①ST-T 异常,②室性期前收缩,③QRS 间期增宽,④左房负荷,⑤左室高电压,⑥异常 Q 波,⑦电轴左偏等。2.肥厚型心肌病的心电图:常见改变为 ST-T 异常、左室高电压、异常 Q 波等。肥厚型心肌病可分肥厚梗阻型心肌病(HOCM)和肥厚非梗阻型心肌病(HNCM)二类。①HNCM 之心电图改变——无特征性所见,胸部 X 线心胸比率正常者居多,然而心电图大部可见异 ECG changes in primary cardiomyopathy, with ST-T abnormalities the most, the rest as abnormal P wave, left ventricular hypertrophy, left axis deviation, abnormal Q wave, various arrhythmias (especially ventricular contraction), QRS Interval widening and low voltage, non-specific see. 1. Hyperemic cardiomyopathy electrocardiogram ① ST-T abnormalities, ② ventricular contraction, ③ QRS interval widened ④ left atrial load, ⑤ left ventricular high voltage, ⑥ anomalous Q wave, ⑦ left axis deviation and so on. 2. hypertrophic cardiomyopathy ECG: common changes to ST-T abnormalities, left ventricular high voltage, abnormal Q wave. Hypertrophic cardiomyopathy can be divided into hypertrophic obstructive cardiomyopathy (HOCM) and hypertrophic non-obstructive cardiomyopathy (HNCM) class II. ① HHN ECG changes - no characteristic of the chest X-ray chest to heart ratio was normal, but most of the ECG can be different