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Exercise cardiorespiratory function in adolescents with pectus excavatum. Observations before and after operation
S R Wynn1, D J Driscoll, N K Ostrom
1Department of Pediatrics, Mayo Clinic, Rochester, MN 55905.
The Journal of Thoracic and Cardiovascular Surgery
|January 1, 1990
Summary
Surgical repair of pectus excavatum did not significantly alter cardiorespiratory responses to exercise in children. Lung function showed minor changes, highlighting the need for pre- and post-operative assessments with control groups.
Area of Science:
- Pediatric Pulmonology
- Thoracic Surgery
- Cardiorespiratory Physiology
Background:
- Pectus excavatum is a congenital chest wall deformity impacting respiratory mechanics.
- Assessing the cardiorespiratory effects of surgical repair in adolescents is crucial.
Purpose of the Study:
- To evaluate the impact of pectus excavatum surgical repair on cardiorespiratory function during exercise.
Main Methods:
- Pulmonary function and exercise testing were performed on 12 children with pectus excavatum (mean age 13.8 years).
- Eight patients underwent surgical repair and were tested pre- and post-operatively.
- Four non-operated patients served as controls, tested twice.
Main Results:
- Total lung capacity decreased by 8% (p<0.01) post-surgery, with no significant change in controls.
- Maximal oxygen uptake and ventilation ratios showed non-significant changes in both operated and non-operated groups.
- Exercise-induced increases in cardiac output and stroke volume were appropriate in all patients, both pre- and post-operatively.
Conclusions:
- Surgical repair of pectus excavatum had no physiologically significant adverse effects on cardiorespiratory response to exercise.
- Minor cardiorespiratory function changes occurred in both operated and non-operated groups.
- Pre- and post-operative evaluation alongside control groups is essential for accurate assessment.
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