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Published on: April 4, 2019
Viral bronchiolitis
Todd A Florin1, Amy C Plint2, Joseph J Zorc3
1Division of Pediatric Emergency Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
Insights
Viral bronchiolitis in infants requires clinical diagnosis, with supportive care focusing on oxygenation and hydration. Bronchodilators and corticosteroids offer no proven benefit for first-time episodes.
Area of Science:
- Pediatrics
- Infectious Diseases
- Respiratory Medicine
Background:
- Viral bronchiolitis is a frequent respiratory illness in infants and young children.
- Significant research exists, summarized in systematic reviews and clinical practice guidelines.
- Concerns include morbidity and healthcare costs associated with the condition.
Purpose of the Study:
- To review current evidence and guidelines for diagnosing and managing viral bronchiolitis.
- To evaluate the efficacy of various treatment modalities.
- To inform clinical practice for pediatric respiratory infections.
Main Methods:
- Systematic review of existing research and clinical practice guidelines.
- Analysis of evidence regarding diagnostic testing, supportive care, and pharmacological interventions.
- Evaluation of data on advanced respiratory support for severe cases.
Main Results:
- Clinical diagnosis is recommended for typical viral bronchiolitis presentations.
- Supportive management focusing on oxygenation and hydration is standard.
- Bronchodilators and corticosteroids show no benefit in first-episode bronchiolitis.
- Evidence for hypertonic saline is still evolving.
- High-flow nasal cannula and CPAP may aid severe cases, but data are limited.
Conclusions:
- Viral bronchiolitis diagnosis relies on clinical assessment, minimizing diagnostic tests.
- Supportive care is the cornerstone of management.
- Current evidence does not support routine use of bronchodilators or corticosteroids.
- Further research is needed for treatments like hypertonic saline and advanced respiratory support.
Abstract:
Viral bronchiolitis is a common clinical syndrome affecting infants and young children. Concern about its associated morbidity and cost has led to a large body of research that has been summarised in systematic reviews and integrated into clinical practice guidelines in several countries. The evidence and guideline recommendations consistently support a clinical diagnosis with the limited role for diagnostic testing for children presenting with the typical clinical syndrome of viral upper respiratory infection progressing to the lower respiratory tract. Management is largely supportive, focusing on maintaining oxygenation and hydration of the patient. Evidence suggests no benefit from bronchodilator or corticosteroid use in infants with a first episode of bronchiolitis. Evidence for other treatments such as hypertonic saline is evolving but not clearly defined yet. For infants with severe disease, the insufficient available data suggest a role for high-flow nasal cannula and continuous positive airway pressure use in a monitored setting to prevent respiratory failure.
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