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李小平:Effects of Ventricular Conduction Block Patterns on Mortality in Hospitalized Patients with Dilated Cardiomyopathy: a Single-Center Cohort Study PPT讲座视频 第18届中国南方国际心血管病学术会议
标题: Effects of Ventricular Conduction Block Patterns on Mortality in Hospitalized Patients with Dilated Cardiomyopathy: a Single-Center Cohort Study
讲者: 李小平
单位: 四川省医学科学院•四川省人民医院
播放: 2852
论文摘要:

Introduction Ventricular conduction blocks (VCBs) are associated with poor outcomes in patients with known cardiac diseases. However, the prognostic implications of VCB patterns in dilated cardiomyopathy (DCM) patients need to be evaluated. The purpose of this study was to determine all-cause mortality in patients with DCM and VCB.

Methods and Results This cohort study included 1119 DCM patients with a median follow-up of 34.3 (19.5-60.8) months. The all-cause mortality was assessed. All patients were then divided into left bundle branch block (LBBB), right bundle branch block (RBBB), intraventricular conduction delays (IVCD) and narrow QRS groups. Of those patients, the all-cause mortality rates were highest in patients with IVCD (47.8%, n = 32), intermediate in those with RBBB (32.9%, n = 27) and LBBB (27.1%, n = 60), and lowest in those with narrow QRS (19.9%, n = 149). The all-cause mortality risk was significantly different between the VCB and narrow QRS group (log-rank χ2=51.564, P<0.001). The presence of RBBB, IVCD, PASP40 mm Hg, left atrium diameter and NYHA functional class were independent predictors of all-cause mortality in DCM patients.

Conclusion Our findings indicate that RBBB and IVCD at admission,but not LBBB, were independent predictors of all-cause mortality in patients with DCM.

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