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  • Title: Beta-blocker treatment of chronic systolic heart failure improves prognosis even in patients meeting one or more exclusion criteria of the MERIT-HF study.
    Author: Jost A, Rauch B, Hochadel M, Winkler R, Schneider S, Jacobs M, Kilkowski C, Kilkowski A, Lorenz H, Muth K, Zugck C, Remppis A, Haass M, Senges J, HELUMA study group.
    Journal: Eur Heart J; 2005 Dec; 26(24):2689-97. PubMed ID: 16183697.
    Abstract:
    AIMS: Improved prognosis of patients with chronic systolic heart failure by treatment with beta-blockers has been shown in several randomized controlled multicentre trials. However, in clinical practice only a part of heart failure patients meet the inclusion criteria of these trials. The present study evaluates whether reduction of mortality by beta-blockers also can be achieved in patients presenting one or more exclusion criteria of the MERIT-HF trial. METHODS AND RESULTS: From the Ludwigshafen Heart Failure Registry 675 patients with chronic systolic heart failure consecutively enrolled between January 1995 and June 2004 were divided in two groups either meeting the inclusion criteria of the MERIT-HF trial ('trial patients': n = 278, 60% treated with beta-blockers) or not ('non-trial patients': n = 397; 51% treated with beta-blockers). The distribution of the MERIT-HF exclusion criteria in the group of 'non-trial patients' was as follows: acute myocardial infarction 9.6%; systolic blood pressure <100 mmHg 7.5%; chronic obstructive lung disease 33.2%; other serious diseases potentially limiting prognosis 16.9%; acutely performed or planned ICD, bypass surgery, PCI, heart transplantation: 17.1, 15.9, 7.8, and 4.8%, respectively. Median follow-up was 31.3 months (upper/lower quartile 16.3/50.0 months). All-cause mortality was significantly reduced by beta-blocker treatment not only in 'trial patients' (adjusted hazard ratio 0.57, 95% CI 0.38-0.86) but also in 'non-trial patients' (adjusted hazard ratio 0.72, 95% CI 0.53-0.97). CONCLUSION: In clinical practice only the smaller part of the population to be treated for chronic systolic heart failure meets the inclusion criteria of the MERIT-HF study. However, beta-blocker treatment is associated with a significantly reduced long-term mortality even in patients meeting one or more exclusion criteria of the MERIT-HF study.
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