Cardiac Rehabilitation Programs for Chronic Heart Disease: A Bayesian Network Meta-analysis

Area of Science:

• Cardiology
• Evidence-Based Medicine
• Public Health

Background:

• Cardiac rehabilitation (CR) is a supervised program for patients post-coronary events.
• CR typically includes exercise and dietary interventions.
• Comparative effectiveness of different CR strategies requires evaluation.

Purpose of the Study:

• To evaluate the comparative benefits and harms of various cardiac rehabilitation strategies.
• To synthesize evidence from randomized controlled trials (RCTs) on CR effectiveness.

Main Methods:

• A systematic search of Embase, MEDLINE, and Cochrane databases was conducted.
• Network meta-analysis of 134 RCTs involving 62,322 participants.
• Outcomes assessed included mortality, major adverse cardiovascular events, and hospitalizations.

Main Results:

• Exercise-only CR reduced cardiovascular mortality (OR, 0.70) and major adverse cardiovascular events (OR, 0.57) versus standard care.
• Exercise-based CR also lowered nonfatal myocardial infarction, all-cause hospitalization, and cardiovascular hospitalization.
• Compared to CR without exercise, exercise-only CR showed a lower risk of cardiovascular hospitalization (OR, 0.68).

Conclusions:

• Cardiac rehabilitation programs incorporating exercise demonstrate significant cardiovascular benefits.
• Exercise is a key component for improving outcomes in post-coronary event patients.
• Exercise-based CR is superior to non-exercise CR and standard care.