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Exercise Training for People Living With Fontan Circulation: An Underutilized Intervention
Michael Khoury1, Rachael Cordina2
1Division of Pediatric Cardiology, Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
The Canadian Journal of Cardiology
|January 18, 2022
Summary
Children with single-ventricle heart defects undergoing the Fontan operation show improved survival. Exercise interventions can enhance exercise capacity and Fontan physiology, but further research is needed.
Area of Science:
- Pediatric Cardiology
- Congenital Heart Disease
- Cardiovascular Physiology
Background:
- The Fontan operation significantly improves survival for single-ventricle congenital heart disease.
- Most Fontan survivors experience reduced exercise capacity, linked to poorer cardiovascular outcomes.
- A key factor is the lack of a subpulmonary pump, limiting cardiac output during exercise.
Purpose of the Study:
- To review factors contributing to reduced exercise capacity in Fontan circulation.
- To summarize current evidence on exercise interventions for improving exercise capacity and physiology.
- To identify knowledge gaps and future research priorities in this field.
Main Methods:
- Literature review of studies on Fontan circulation and exercise capacity.
- Analysis of physiological adaptations and the impact of exercise interventions.
- Identification of research gaps concerning long-term outcomes and novel intervention strategies.
Main Results:
- Exercise interventions appear safe and effective for improving exercise capacity in Fontan patients.
- Reduced exercise capacity is multifactorial, including impaired cardiac output augmentation.
- Home-based and telemedicine interventions show promise but require further investigation.
Conclusions:
- Exercise interventions offer a promising avenue for enhancing health in Fontan survivors.
- Further research is crucial to understand long-term impacts and optimize intervention strategies.
- Addressing knowledge gaps is essential for improving quality of life and clinical outcomes.
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