Cardiopulmonary performance during exercise in patients with repaired tetralogy of Fallot with absent pulmonary valve
| Autor: | N. Mulla, William W. Pinsky, Stephen M. Paridon |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Adult
Male congenital hereditary and neonatal diseases and abnormalities medicine.medical_specialty Adolescent Pulmonary function testing Cardiovascular Physiological Phenomena Oxygen Consumption Heart Rate Internal medicine Heart rate Methods medicine Humans Child Lung Tetralogy of Fallot Pulmonary Valve Pulmonary Gas Exchange business.industry VO2 max Airway obstruction medicine.disease Respiratory Function Tests Cardiac surgery Echocardiography Child Preschool Anesthesia Pediatrics Perinatology and Child Health Exercise Test Breathing Cardiology Female Cardiology and Cardiovascular Medicine business Anaerobic exercise |
| Zdroj: | Pediatric Cardiology. 16:120-126 |
| ISSN: | 1432-1971 0172-0643 |
| DOI: | 10.1007/bf00801909 |
| Popis: | In patients with tetralogy of Fallot and absent pulmonary valve, the dilated pulmonary arteries sometimes result in bronchial compression and pulmonary symptoms due to airway obstruction, recurrent pulmonary infection, and development of bronchiectasis. After complete intracardiac repair, residual pulmonary disease may be expected to result in impaired cardiopulmonary performance during exercise. To assess this hypothesis, nine patients with tetralogy of Fallot and absent pulmonary valve underwent exercise testing and were compared to 38 patients with tetralogy of Fallot repaired using a transannular patch. All patients were exercised to maximum volition using a 1 minute incremental treadmill protocol with monitoring of pulmonary functions and expired gases. Maximal heart rate, maximal oxygen consumption, oxygen consumption at anaerobic threshold, and maximal respiratory exchange ratio were similar for the two groups. There was no significant difference for ventilation and gas exchange parameters at rest or at maximal exercise, and values for both groups were below the predicted normal for healthy subjects. Breathing reserve, however, did tend to be somewhat lower in the group with tetralogy of Fallot with absent pulmonary valve. In summary, despite significant preoperative symptoms, cardiopulmonary performance during exercise in patients with tetralogy of Fallot and absent pulmonary valve is similar to patients with tetralogy of Fallot repaired with a transannular patch. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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