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Updated: Aug 17, 2026

Development of Obliterative Bronchiolitis in a Murine Model of Orthotopic Lung Transplantation
Published on: July 10, 2012
Bronchiolitis obliterans in children--a report of six cases
Insights
Severe bronchiolitis in children can lead to persistent respiratory symptoms like breathlessness and cough. However, long-term outcomes are generally satisfactory, with most children showing improvement over time.
Area of Science:
- Pediatrics
- Pulmonology
- Infectious Diseases
Background:
- Severe acute bronchiolitis in infancy and early childhood can result in persistent respiratory sequelae.
- Children may experience symptoms such as breathlessness, cough, and wheeze that are resistant to standard bronchodilator therapy.
Purpose of the Study:
- To describe the clinical features, etiology, and long-term prognosis of children with persistent respiratory symptoms following severe acute bronchiolitis.
Main Methods:
- Case series describing six children with persistent symptoms after severe acute bronchiolitis.
- Clinical examination, radiological assessment, and in one case, lung biopsy were utilized.
- Etiological investigations included testing for measles and adenovirus.
Main Results:
- Persistent symptoms included breathlessness, cough, wheeze, chest hyperinflation, crepitations, and rhonchi.
- Failure to thrive was noted in most patients.
- Measles and adenovirus were identified as potential etiological agents in some cases; others remained unknown.
Conclusions:
- The clinical presentation and course were consistent with bronchiolitis obliterans.
- Despite prolonged illness, the long-term prognosis was favorable, with significant improvement in respiratory signs, growth, and general health observed over four to eight years.
Abstract:
Six children who survived severe acute bronchiolitis in infancy and early childhood continued to have persistent symptoms of breathlessness, cough and wheeze resistant to bronchodilator therapy. Hyperinflation of the chest, widespread crepitations and rhonchi were persistent clinical features. Failure to thrive was a problem in most. At presentation clinical measles was diagnosed in one child and adenovirus titres were raised in another; the aetiological agents in the others were not known. Lung biopsy from the child with measles showed features of severe bronchiolitis. The clinical and radiological features and course of the illness were consistent with those of bronchiolitis obliterans. Although illness was prolonged the long term prognosis was satisfactory with the majority of children showing improved chest signs, growth and general health after four to eight years of follow up.
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