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  • Title: Mortality and morbidity of non-systolic heart failure treated with angiotensin-converting enzyme inhibitors: a propensity-adjusted case-control study.
    Author: Gomez-Soto FM, Romero SP, Bernal JA, Escobar MA, Puerto JL, Andrey JL, Almenara J, Gomez F.
    Journal: Int J Cardiol; 2010 Mar 18; 139(3):276-82. PubMed ID: 19064293.
    Abstract:
    BACKGROUND: The effect of treatment with angiotensin-converting enzyme inhibitors (ACEIs) on the prognosis of patients newly diagnosed with heart failure with preserved systolic function (HF-PSF) is unclear. We evaluate the relationship of commencing ACEI therapy (C-ACEI-T) with the morbidity and mortality of patients with HF-PSF. METHODS: Prospective propensity-adjusted cohort study over 5 years on 1120 adults diagnosed with HF-PSF for the first time, within an integrated health organization in Spain. We analyzed the independent relationship between C-ACEI-T and mortality, and morbidity, stratifying patients according to comorbidity, after a multivariable adjustment for potential confounders. RESULTS: The 865 patients (77.2%) who C-ACEI-T were younger, with more cardiovascular comorbidity. During the median follow-up of 908.3 days (interquartile range 558.6-1302.0) 580 patients (51.8%) died, and 727 (64.9%) were hospitalized. Using an intention-to-treat analysis, C-ACEI-T was associated with a lower risk of all-cause (RR [CI 95%] 0.34 [0.23 to 0.46]), and cardiovascular (RR 0.28 [0.20 to 0.36]) mortality, and a lower age- and sex-adjusted rate of hospitalization (per 100 persons-year), 12.3 vs. 19.4, (P<0.001 in all cases), even after adjustment for the propensity to take ACEIs, or other medications, comorbidities, and other potential confounders. CONCLUSION: In this prospective observational study the establishment of ACEI therapy is associated with a reduced mortality and morbidity of patients with newly diagnosed non-systolic heart failure.
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