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Published on: November 4, 2010

Single oral dose of dexamethasone in outpatients with bronchiolitis: a placebo controlled trial

Mirta Mesquita1, Jose A Castro-Rodríguez, Lizzette Heinichen

  • 1Hospital General Pediátrico Niños de Acosta Nú, Asunción, Paraguay. jacastro17@hotmail.com

Allergologia Et Immunopathologia
|May 19, 2009
PubMed

Insights

A single dose of oral dexamethasone did not improve respiratory status or reduce hospitalizations in infants with moderate to severe bronchiolitis. This study investigated its efficacy in a developing country setting.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Clinical Pharmacology

Background:

  • Bronchiolitis management remains controversial, with limited research on oral corticosteroid efficacy in developing nations.
  • No prior clinical trials have evaluated oral corticosteroids for outpatient bronchiolitis in developing countries.

Purpose of the Study:

  • To assess the effectiveness of a single oral dexamethasone dose in infants with moderate to severe bronchiolitis presenting to an emergency department.
  • To compare clinical outcomes between dexamethasone and placebo groups.

Main Methods:

  • A randomized, double-blind, placebo-controlled trial was conducted in Paraguay.
  • Infants received either dexamethasone (0.5 mg/kg) or placebo, followed by adrenaline nebulizations.
  • Respiratory status was evaluated using the Respiratory Distress Assessment Instrument (RDAI) and vital signs at baseline and 4 hours.

Main Results:

  • Sixty-five infants completed the study; baseline characteristics were similar between groups.
  • No significant differences were observed in RDAI scores, heart rate, respiratory rate, or oxygen saturation between the dexamethasone and placebo groups at 4 hours.
  • Hospitalization rates were comparable: 21% in the dexamethasone group versus 25% in the placebo group (p=0.9).

Conclusions:

  • A single dose of oral dexamethasone did not significantly improve respiratory status in infants with moderate to severe bronchiolitis.
  • The treatment did not alter the hospital admission rate compared to placebo.
  • Findings suggest dexamethasone is not effective for this condition in the studied population.
Abstract

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