Bronchomalacia associated with pulmonary atresia, ventricular septal defect and major aortopulmonary collateral arteries, and chromosome 22q11.2 deletion - PubMed (original) (raw)
Bronchomalacia associated with pulmonary atresia, ventricular septal defect and major aortopulmonary collateral arteries, and chromosome 22q11.2 deletion
H Yamagishi et al. Clin Genet. 2002 Sep.
Abstract
Respiratory distress is one of the major complications in young infants with pulmonary atresia, ventricular septal defect and major aortopulmonary collateral arteries (PA-VSD-MAPCA); however, its aetiology remains obscure. We have previously reported an association of bronchomalacia with PA-VSD-MAPCA in patients with a hemizygous deletion of chromosome 22q11.2 (del.22q11). To clarify the clinical relevance of bronchomalacia in patients with PA-VSD-MAPCA and del.22q11, we reviewed the clinical and laboratory records of four patients with PA-VSD-MAPCA who had del.22q11 and bronchomalacia. External bronchial compression by anomalous patterning of the aorta and MAPCA was documented in three of the four patients, using combinatorial examination of angiocardiography, bronchography, fibreoptic bronchoscopy and magnetic resonance imaging. One of the four patients died suddenly of severe respiratory distress at 4 years of age, while the remaining three were inoperable for complete surgical repair. Our study indicates that bronchomalacia as a result of external vascular compression may be an aetiology of early-onset respiratory distress in some patients with PA-VSD-MAPCA and del.22q11, and can significantly affect the clinical outcome.
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