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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
Published on: April 19, 2019
Effect of multidisciplinary cardiac rehabilitation on the response to cardiac resynchronization therapy
Pieter Martens1,2, Guy Jacobs1, Matthias Dupont1
1Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium.
Insights
Cardiac resynchronization therapy (CRT) combined with cardiac rehabilitation (CR) improves heart failure outcomes. Participation in CR post-CRT implant is safe and enhances symptomatic status and long-term survival.
Area of Science:
- Cardiology
- Heart Failure Management
- Rehabilitation Medicine
Background:
- Cardiac resynchronization therapy (CRT) and multidisciplinary cardiac rehabilitation (CR) improve heart failure outcomes.
- The combined impact of CRT and CR requires further investigation.
Purpose of the Study:
- To evaluate the effect of a structured cardiac rehabilitation program on patients undergoing cardiac resynchronization therapy.
- To assess the influence of CR on functional status, reverse remodeling, and clinical outcomes post-CRT.
Main Methods:
- Retrospective analysis of 655 CRT patients, divided into those who did and did not participate in CR.
- Assessment of New York Heart Association (NYHA) class, left ventricular ejection fraction (LVEF), and a combined endpoint of heart failure readmission/all-cause mortality.
- Multivariate correction was applied to analyze the data.
Main Results:
- 34% of patients participated in CR; no adverse events were reported.
- CR participants showed significant improvements in NYHA class, maximal workload, and VO2max at 6 months, even after adjustment.
- While CR showed a trend towards improved LVEF, this was not significant after multivariate correction. CR was associated with significantly higher event-free survival for the combined endpoint.
Conclusions:
- Structured cardiac rehabilitation is safe and beneficial for patients post-CRT implant.
- CR positively impacts symptomatic status and clinical outcomes, potentially independent of CRT's reverse remodeling effects.
- Combining CRT with CR offers additive benefits for heart failure patients.
Background:
Both cardiac resynchronization therapy (CRT) and Multidisciplinary Cardiac Rehabilitation (CR) beneficially influence symptomatic status, exercise capacity, quality of life, and heart failure readmission rates. However, the interaction between both therapies remain incompletely addressed.
Methods:
Consecutive CRT patients implanted in a single tertiary care center were retrospectively analyzed. Patients were dived according to the participation in a structured CR-program following CRT-implant. The effect on functional status (New York Heart Association; NYHA-class), reverse remodeling (change in left ventricular ejection fraction; LVEF), and the combined endpoint of heart failure readmission and all-cause mortality was assessed after multivariate correction.
Results:
A total of 655 patients were analyzed of whom 223(34%) did and 432(66%) did not participate in a structured multidisciplinary CR-program following implant. No adverse events relating to exercise training occurred during the CR-program. Patients who participated in the CR-program had a more pronounced improvement in NYHA-class at 6-months (P = 0.006), even after multivariate correction (β = -0.144; 95% CI = [-0.270; -0.018]; P = 0.025). Maximal workload and VO2max on CPET at 6 months improved significantly even after adjustment (P < 0.001, respectively P = 0.017). At 6-months, CR associated with more improvement in LVEF (+11.9 ± 13 vs +14.5 ± 11; P = 0.008), however, this relationship was lost after multivariate correction (P = 0.136). During 36 ± 22 months follow-up, patients in the CR group had a higher event-free survival for the combined endpoint (P = 0.001), even after multivariate correction (adjusted HR = 0.547; CI = 0.366-0.818; P = 0.003).
Conclusions:
Following CRT-implant, the participation in a structured CR-program is safe and beneficially influences symptomatic response and clinical outcome. The beneficial effects of exercise training are potentially independent and additive to the beneficial reverse remodeling effect induced by CRT itself.
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