Related Experiment Videos
Effect of cardiac rehabilitation on functional outcomes after coronary revascularization
Sara K Pasquali1, Karen P Alexander, Laura P Coombs
1Outcomes Research and Assessment Group, Duke Clinical Research Institute, Durham, NC, USA.
Insights
Cardiac rehabilitation (CR) after coronary revascularization significantly improves patient physical functioning. Innovative strategies are needed to increase enrollment and tailor programs for broader benefits.
Area of Science:
- Cardiology
- Rehabilitation Medicine
- Public Health
Background:
- Current cardiac rehabilitation (CR) guidelines are based on limited, older studies.
- Previous research did not adequately assess CR's impact on patient-perceived functional status.
- Contemporary patient populations and revascularization techniques differ significantly.
Purpose of the Study:
- To evaluate the impact of CR on functional outcomes in a diverse, contemporary patient population undergoing coronary revascularization.
- To assess CR's effect on patient-reported physical functioning (SF-36 PF) at six months post-intervention.
- To identify patient subgroups that may benefit most from CR.
Main Methods:
- A cohort of 700 patients undergoing coronary bypass grafting or percutaneous intervention were studied.
- The effect of CR on 6-month SF-36 Physical Functioning (PF) scores was analyzed.
- Statistical adjustments were made for baseline clinical variables and PF scores.
Main Results:
- Overall CR participation was 24%, with participants showing higher baseline PF.
- After adjustments, CR was associated with a significant 5.0-point improvement in 6-month PF.
- Improvements were observed across subgroups, with trends suggesting greater benefits for men, younger patients (<70), and those undergoing bypass grafting.
- CR participants showed higher rates of regular exercise and dietary modification, with similar rehospitalization and repeat revascularization rates.
Conclusions:
- Cardiac rehabilitation following coronary revascularization improves functional outcomes and promotes secondary preventive behaviors.
- There is a need for innovative strategies to enhance CR enrollment and program tailoring.
- Extending CR benefits to all eligible patients requires addressing diverse subgroup needs.
Background:
Current guidelines recommending cardiac rehabilitation (CR) after coronary revascularization are largely based on early studies that evaluated only a subset of the population and failed to assess the impact of CR on a patient's perception of their functional status. The main objective of this study was to evaluate the impact of CR in a diverse contemporary population on patient functional outcomes.
Methods:
We studied the effect of CR on 6-month SF-36 Physical Functioning (PF) in 700 patients (mean age 67 +/- 11 years, 37% women) who underwent coronary bypass grafting or percutaneous intervention from August 1998 to July 2000.
Results:
Overall CR participation was 24%. At baseline, CR participants had higher PF (mean 62.5 vs 52.5, P <.001). After adjusting for baseline clinical variables and PF score, CR was associated with significant improvement in 6-month PF (+5.0, 95% CI 1.0-9.0). This improvement was observed in all patient subgroups, but tended to be greater in magnitude in men versus women, patients aged <70 years versus > or =70 years, and patients with coronary bypass grafting versus patients with percutaneous intervention. CR participants also tended to be more likely to engage in regular exercise (63% vs 55%, P =.06) and modify their diet (82% vs 73%, P =.07). Rates of rehospitalization and repeat revascularization were similar among CR participants and nonparticipants.
Conclusions:
CR after coronary revascularization is associated with improved functional outcomes and adoption of secondary preventive measures. Innovative strategies to facilitate CR enrollment and tailoring programs to better address the needs of all patient subgroups would extend these benefits to more eligible patients.