56例扩张型心肌病患者QT离散度变化

目的:探讨扩张型心肌病(DCM)QT离散度(QTd)与恶性室性心律失常的关系。方法:选择32例恶性室性心律失常DCM,24例非恶性室性心律失常DCM和43例非心脏疾病患者,测定QTd,QTcd。结果:DCM恶性室性心律失常组及非恶性室性心律失常组QTd,QTcd明显高于对照组(P<0.05);DCM恶性室性心律失常组QTd,QTcd明显高于非恶性室性心律失常组。结论:QTd及QTcd可能是DCM恶性室性心律失常的监测指标。

QT Dispersion Changes in Dilated Cardiomyopathy

Objective:To explore the relationship between QT dispersion and malignant ventricular arrhythmia in dilated cardiomyopathy(DCM).Methods:32 DCM patients with malignant ventricular arrhythmia, 24 DCM patients without malignant ventricular arrhythmia and 43 patients without heart diseases were enrolled into this study. QTd and QTcd were measured in the groups. Results: QTd and QTcd were significantly increased in the groups of DCM than those in the group of control group(P<0.05 ), meanwhile they were significantly increased in the groups of DCM with malignant ventricular arrhythmia than those in the groups of DCM without malignant ventricular arrhythmia(P<0.05 ).Conclusion:QTd and QTcd may be a marker for malignant ventricular arrhythmia in DCM.