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[Obstructive bronchitis syndrome in acute viral respiratory diseases in young children]
Insights
Bronchoobstructive syndrome (BOS) in infants involves impaired bronchial patency and ventilation. Treatment efficacy can be monitored using specialized respiratory function tests.
Area of Science:
- Pediatric Pulmonology
- Respiratory Physiology
Context:
- Bronchoobstructive syndrome (BOS) is common in young children with acute viral respiratory infections.
- Assessing respiratory mechanics in infants presents unique challenges due to their small size and limited cooperation.
Purpose:
- To investigate external respiratory function in infants with BOS.
- To evaluate the impact of BOS on bronchial patency, alveolar ventilation, and ventilation-perfusion relationships.
- To assess the utility of total body plethysmography and oxycapnography in monitoring infant respiratory function and treatment efficacy.
Summary:
- External respiratory function was assessed in 39 infants (1.5 months to 2 years) with BOS due to acute viral infections.
- BOS led to reduced bronchial patency and alveolar ventilation, compensated by rapid, shallow breathing.
- During recovery, bronchial patency improved, hyperinflation decreased, and respiratory volume increased, though ventilation-perfusion uniformity declined.
Impact:
- Provides objective measures for assessing respiratory function in infants with BOS.
- Highlights the role of specific breathing patterns in maintaining ventilation during illness.
- Demonstrates the clinical utility of total body plethysmography and oxycapnography for treatment monitoring in pediatric respiratory infections.
Abstract:
External respiratory function was explored in 39 children aged 1.5 months to 2 years presenting with the bronchoobstructive syndrome (BOS) in the presence of acute respiratory virus infection. The development of the BOS was accompanied by disorders of bronchial patency and alveolar ventilation. The maintenance of adequate ventilation is reached at the expense of hurried breathing with the respiratory volume being lowered. During convalescence, bronchial patency rises, hyperinflation drops and the respiratory volume increases. Uniformity of the ventilation-perfusion relations in the lungs declines. The use of total body plethysmography and oxycapnography makes it possible to objectively estimate respiratory function and to control the efficacy of the treatment in infants.