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目的 研究扩张型心肌病 (DCM)及慢型克山病 (CKSD)心电图 (ECG)、动态心电图 (DCG)的特点和异同 ,为两种疾病的临床鉴别提供依据。方法 选择 6 4例DCM和 5 7例CKSD进行ECG和DCG检查 ,采用卡方检验比较各种异常检出率的差异。结果 DCM及CKSDECG可见各种异常变化 ,其中以室性早搏 (室早 )、ST -T改变多见 ,其次为房性早搏 (房早 )。DCG显示两种疾病均以房早和室早多见 ,其次为S -T段下移、完全性右束支传导阻滞及心房颤动 (房颤 ) ,DCM室早和房早检出率分别为 83 9%、6 1 3% ,室早中偶发、频发、成对及短阵室速依次为35 5 %、5 4 8%、6 6 1%、5 8 1% ;CKSD房早和室早检出率为 96 5 %、6 8 4 % ,室早中偶发、频发、成对及短阵室速依次为 2 4 6 %、75 4 %、77 2 %、5 9 6 % ;CKSD室早检出率高 ;DCM房颤检出率高 ,虽然室早检出率低 ,但室速持续时间长 ,可见心室颤动出现 ,ECG恶性室早亦有检出。结论 DCM与CKSD的ECG及DCG不同特点为两种疾病的临床鉴别提供了参考资料。
Objective To study the characteristics and differences of electrocardiogram (ECG) and electrocardiogram (DCG) in dilated cardiomyopathy (DCM) and chronic Keshan disease (CKSD), and to provide basis for the clinical identification of the two diseases. Methods Sixty-four DCMs and 57 CKSDs were selected for ECG and DCG examinations. Chi-square test was used to compare the differences in the detection rates of various abnormalities. Results There were various abnormal changes in DCM and CKSDECG. Among them, premature ventricular contractions (ventricular premature), ST-T changes were more common, followed by atrial premature beats. DCG showed that the two diseases were premature and early as early as room, followed by S-T segment down, complete right bundle branch block and atrial fibrillation (atrial fibrillation), DCM room early and early detection rates were 83 9% and 61.3% respectively. The incidence of sporadic, frequent, paired and short-necked ventricular tachycardia was 35 5%, 54 48%, 661% and 581% respectively. The detection rates were 96.5% and 68.4% respectively. The frequency of morning sickness, frequent, paired and intermittent VT were 24.6%, 75.4%, 77.2% and 59.6% respectively. The CKSD Early detection rate is high; DCM detection rate of atrial fibrillation high, although the early detection rate is low, but the long duration of ventricular tachycardia, ventricular fibrillation can be seen, ECG malignant room also detected early. Conclusion The different characteristics of ECG and DCG between DCM and CKSD provide references for the clinical identification of the two diseases.