Journal
EUROPEAN JOURNAL OF PREVENTIVE CARDIOLOGY
Volume 28, Issue 15, Pages 1704-1710Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurjpc/zwab035
Keywords
Cardiac rehabilitation; Heart failure; Exercise; Secondary prevention; Retrospective cohort
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Exercise-based cardiac rehabilitation was associated with lower odds of all-cause mortality, hospitalization, incident stroke, and incident atrial fibrillation at 2-year follow-up for patients with heart failure (including patients with reduced ejection fraction and preserved ejection fraction).
Aims Despite the benefits of exercise training in the secondary prevention of cardiovascular disease, there are conflicting findings for the impact of exercise-based cardiac rehabilitation (CR) on mortality for patients with heart failure (HF). The aim of this study was therefore to investigate the association of exercise-based CR with all-cause mortality, hospitalisation, stroke, and atrial fibrillation in patients with heart failure. Methods and results A retrospective cohort study was conducted which utilized a global federated health research network, primarily in the USA. Patients with a diagnosis of HF were compared between those with and without an electronic medical record of CR and/or exercise programmes within 6 months of an HF diagnosis. Patients with HF undergoing exercise-based CR were propensity score matched to HF patients without exercise-based CR by age, sex, race, comorbidities, medications, and procedures (controls). We ascertained 2-year incidence of all-cause mortality, hospitalization, stroke, and atrial fibrillation. Following propensity score matching, a total of 40 364 patients with HF were identified. Exercise-based CR was associated with 42% lower odds of all-cause mortality [odds ratio 0.58, 95% confidence interval (CI): 0.54-0.62], 26% lower odds of hospitalization (0.74, 95% CI 0.71-0.77), 37% lower odds of incident stroke (0.63, 95% CI 0.51-0.79), and 53% lower odds of incident atrial fibrillation (0.47, 95% CI 0.4-0.55) compared to controls, after propensity score matching. The beneficial association of CR and exercise on all-cause mortality was consistent across all subgroups, including patients with HFrEF (0.52, 95% CI 0.48-0.56) and HFpEF (0.65, 95% CI 0.60-0.71). Conclusion Exercise-based CR was associated with lower odds of all-cause mortality, hospitalizations, incident stroke, and incident atrial fibrillation at 2-year follow-up for patients with HF (including patients with HFrEF and HFpEF).
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