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Differential lung function in an infant with the Swyer-James syndrome
A Avital1, D L Shulman, E Bar-Yishay
1Pulmonary Function Laboratory, Hadassah University Hospital, Jerusalem, Israel.
Thorax
|April 1, 1989
Summary
A child with Swyer-James syndrome experienced persistent respiratory issues after an adenoviral infection. Lung scans effectively revealed significant functional abnormalities in the affected lung.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Medical Imaging
Background:
- Swyer-James syndrome, a rare post-infectious pulmonary complication, presents with unilateral hyperlucency and chronic respiratory distress.
- Early diagnosis and functional assessment are crucial for managing pediatric respiratory conditions.
Observation:
- A previously healthy 2-year-old boy developed left lung hyperlucency, chronic respiratory distress, and failure to thrive following an adenoviral infection at 13 months.
- Standard treatments including bronchodilators and steroids were ineffective.
- Fibreoptic bronchoscopy revealed no structural abnormalities.
Findings:
- Radionuclide lung scans (xenon-133) demonstrated significantly reduced function in the hyperlucent left lung and moderately reduced function in the right lung.
- Partial forced expiratory flow volume (PEFV) curves indicated considerably decreased expiratory flow rates and volumes in the affected lung.
- Bronchospirometry and radionuclide scans showed the right lung ventilated approximately 3-4 times more than the left.
Implications:
- Radionuclide lung scans are valuable tools for assessing functional abnormalities in infants with Swyer-James syndrome.
- This case highlights the utility of functional lung imaging in pediatric respiratory diagnostics when structural evaluation is inconclusive.
- Understanding the functional deficits aids in guiding management strategies for unilateral lung hypoperfusion and hypoventilation.