Why the study?
The effects of exercise-based cardiac rehabilitation in patients with stable angina needed systematic assessment across randomized trials.
Does exercise-based cardiac rehabilitation improve clinical outcomes and exercise capacity in adults with stable angina?
Population
581 patients across seven randomized trials with stable angina
Comparison
Exercise-based CR programmes vs no exercise control
Design
Systematic review and meta-analysis of randomised trials
Follow-up
Median of 12-month
Key result
Exercise-based cardiac rehabilitation for stable angina had an uncertain effect on all-cause mortality (RR 1.01; 95% CI 0.18-5.67) but moderately improved short-term exercise capacity.
Authors
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Uncertainty around mortality reduction cautions against relying on cardiac rehabilitation for survival gains in stable angina; leaves open whether larger trials confirm hard-endpoint benefits.
Meta-Analysis (n=581)
Randomized trials
Does exercise-based cardiac rehabilitation improve clinical outcomes and exercise capacity in adults with stable angina?
Effect estimate: RR 1.01 (95% CI 0.18 to 5.67)
Exercise-based cardiac rehabilitation improves short-term exercise capacity in patients with stable angina, but its impact on mortality and morbidity remains uncertain due to low-quality evidence.
Long et al. (2019) conducted a meta-analysis in Stable angina (n=581). Exercise-based cardiac rehabilitation vs. No exercise control was evaluated on All-cause mortality (RR 1.01, 95% CI 0.18 to 5.67). Exercise-based cardiac rehabilitation for stable angina had an uncertain effect on all-cause mortality (RR 1.01; 95% CI 0.18-5.67) but moderately improved short-term exercise capacity.