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目的:探讨左室腔大小对于扩张型心肌病(DCM)患者预后影响。方法:测定46例扩张型心肌病患者左室腔舒张内径(LVED),根据LVED予以分组:>70 mm、≤70 mm,对两组心率变异性(HRV)、左室射血分数(EF)、QT离散度(QTd)、恶性心律失常以及1 a内再住院、严重心衰、全因死亡等指标对比分析。结果:>70 mm组HRV各参数、EF均较对照组低(P<0.05),QTd、恶性心律失常、再住院、严重左心衰较对照组组高(P<0.05),而全因死亡无统计学意义。结论:左室腔测定对评价扩张型心肌病患者预后有一定临床意义。
Objective: To investigate the influence of left ventricular size on the prognosis of patients with dilated cardiomyopathy (DCM). Methods: The left ventricular diastolic diameter (LVED) of 46 patients with dilated cardiomyopathy were measured and divided into two groups according to LVED:> 70 mm and ≤70 mm. The heart rate variability (HRV), left ventricular ejection fraction (EF) , QT dispersion (QTd), malignant arrhythmia and re-hospitalization within 1 year, severe heart failure, all-cause mortality and other indicators comparative analysis. Results: The parameters of HRV> 70 mm were lower than those of the control group (P <0.05), QTd, malignant arrhythmia, rehospitalization and severe left ventricular failure were higher than those of the control group (P <0.05) No statistical significance. Conclusion: The determination of left ventricular cavity in the evaluation of the prognosis of patients with dilated cardiomyopathy has some clinical significance.