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Published on: July 10, 2012
A case of bronchiolitis obliterans in a young child
Vaibhav Keskar1, Milind S Tullu, Sandeep B Bavdekar
1Department of Pediatrics, Seth G.S. Medical College and KEM Hospital, Mumbai, India.
Insights
Bronchiolitis obliterans (BO), a rare obstructive lung disease, can develop in children after severe respiratory infections. This case highlights a potential link between prolonged mechanical ventilation and BO development, with positive response to corticosteroids.
Area of Science:
- Pulmonology
- Pediatric Respiratory Medicine
- Critical Care
Background:
- Bronchiolitis obliterans (BO) is a rare obstructive lung disease affecting small airways.
- It often follows severe lower respiratory tract infections, particularly in children.
- The role of mechanical ventilation in BO etiology is not well-established.
Observation:
- A three-year-old child developed BO after a severe lower respiratory tract infection.
- The child required prolonged mechanical ventilation and developed ventilator-associated pneumonia.
- The patient presented with classic symptoms of dyspnea, chronic cough, sputum production, and wheezing.
Findings:
- Computed tomographic (CT) scans aided in diagnosis, complementing histopathology.
- The case suggests a potential association between prolonged mechanical ventilation and BO in pediatric patients.
- The child showed a positive clinical response to corticosteroid treatment.
Implications:
- This case underscores the importance of considering mechanical ventilation as a potential contributing factor in pediatric BO.
- Early diagnosis and management, including prompt corticosteroid therapy, may improve outcomes.
- Further research is warranted to elucidate the etiological role of mechanical ventilation in BO.
Abstract:
Bronchiolitis obliterans (BO) is an infrequent chronic obstructive pulmonary disease that follows an insult to lower respiratory tract. BO following a severe lung infectious disease is the most common form reported in children. It implies a chronic necrotizing and ultimately fibrosing process affecting the small airways which results in progressive obliteration with resultant obstructive lung disease. The characteristic symptom-complex includes dyspnea, chronic cough, sputum production and wheezing. Although histopathology remains the gold standard for diagnosis, computed tomographic scan is of great help in diagnosis. Etiological role of mechanical ventilation has not yet been studied well. We report a case of BO in a three year old child occurring after an episode of lower respiratory tract infection requiring prolonged mechanical ventilation with subsequent development of ventilator-associated pneumonia. Our patient had a protracted clinical course with good response to corticosteroids.
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