4.6 Article

Beta-Blocker Use Is Associated With Prevention of Left Ventricular Remodeling in Recovered Dilated Cardiomyopathy

期刊

出版社

WILEY
DOI: 10.1161/JAHA.120.019240

关键词

beta-blocker; dilated cardiomyopathy; heart failure with recovered ejection fraction; remodeling

资金

  1. Japanese Ministry of Health, Labour and Welfare (Comprehensive Research on Cardiovascular Diseases) [20FC1051]
  2. Japan Agency for Medical Research and Development [19ek0109367h0002, 20ek0109367h0003]

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The use of beta-blockers in recovered DCM patients can prevent deterioration of left ventricular systolic function, with female patients showing a greater benefit from beta-blockers.
Background Withdrawal of optimal medical therapy has been reported to relapse cardiac dysfunction in patients with dilated cardiomyopathy (DCM) whose cardiac function had improved. However, it is unknown whether beta-blockers can prevent deterioration of cardiac function in those patients. We examined the effect of beta-blockers on left ventricular ejection fraction (LVEF) in recovered DCM. Methods and Results We analyzed the clinical personal record of DCM, a national database of the Japanese Ministry of Health, Labor and Welfare, between 2003 and 2014. Recovered DCM was defined as a previously documented LVEF 10% at 2 years of follow-up. Of 5370 eligible patients, 4104 received beta-blockers. Propensity score matching yielded 1087 pairs. Mean age was 61.9 years, and 1619 (74.5%) were men. Mean LVEF was 49.3 +/- 8.2%, and median B-type natriuretic peptide was 46.6 (interquartile range, 18.0-118.1) pg/mL. The primary outcome was observed less frequently in the beta-blocker group than in the no-beta-blocker group (19.6% versus 24.0%; odds ratio [OR], 0.77; 95% CI, 0.63-0.95; P=0.013). Subgroup analysis demonstrated that female patients (women: OR, 0.54; 95% CI, 0.36-0.81; men: OR, 0.88; 95% CI, 0.69-1.12; P for interaction=0.040) were benefited by beta-blockers. Conclusions Beta-blocker use could prevent deterioration of left ventricular systolic function in patients with recovered DCM.

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