Background: Stem cell transplantation (SCT) is associated with pulmonary complications and may lead to high morbidity and mortality. We encountered several children post-SCT with a clinical picture suggestive of airway hyper-reactivity (AHR) and evidence of reversible airway obstruction that was not reported pre-transplant. Our aim was to determine if SCT induced AHR as assessed by methacholine challenge test (MCT) and to determine any correlation between AHR and pulmonary complications. Methods: Prospective study evaluating consecutive patients referred for SCT to the Department of Pediatric Hemato-Oncology at Meyer Children's Hospital. Evaluation included pulmonary function test and methacholine challenge test before and after the transplantation, and assessment of pulmonary complications.
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Positive MCT after SCT may be associated with increased risk of pulmonary complications
Timeframe: 3 years followup