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Do inhaled corticosteroids have a role for bronchiolitis?

Gonzalo Alarcón-Andrade1, Lorena Cifuentes2

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Inhaled corticosteroids do not prevent recurrent wheeze or asthma in infants diagnosed with bronchiolitis, a common viral respiratory infection. This finding is based on a meta-analysis of randomized controlled trials.

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Area of Science:

  • Pediatric respiratory medicine
  • Evidence-based medicine

Background:

  • Bronchiolitis is an acute inflammation of small airways in children under 2 years old, typically caused by viral infections.
  • The efficacy of inhaled corticosteroids in preventing recurrent wheeze or asthma post-bronchiolitis remains controversial.

Purpose of the Study:

  • To evaluate the effectiveness of inhaled corticosteroids in reducing recurrent wheeze or asthma in children with a history of bronchiolitis.

Main Methods:

  • A comprehensive search was conducted using Epistemonikos, a large database of systematic reviews.
  • Data from three systematic reviews, encompassing 11 randomized trials, were analyzed.
  • A meta-analysis and GRADE approach were employed to synthesize findings.

Main Results:

  • The meta-analysis of 11 randomized trials did not demonstrate a significant reduction in recurrent wheeze or asthma.
  • Inhaled corticosteroids showed no benefit in preventing long-term respiratory issues after bronchiolitis.

Conclusions:

  • Current evidence suggests that inhaled corticosteroids are not effective in preventing recurrent wheeze or asthma in patients previously diagnosed with bronchiolitis.
  • Further research may be warranted, but current guidelines should consider these findings.