Surfactant therapy for bronchiolitis in critically ill infants

Area of Science:

• Pediatric Critical Care Medicine
• Neonatology
• Respiratory Medicine

Background:

• Bronchiolitis is a leading cause of infant respiratory failure, often necessitating intensive care and mechanical ventilation.
• Limited evidence exists for effective bronchiolitis treatments beyond supportive care.
• Surfactant abnormalities are noted in severe bronchiolitis, suggesting exogenous surfactant as a potential therapy.

Purpose of the Study:

• To assess the efficacy of exogenous surfactant administration versus placebo or standard care.
• To determine the impact on mortality and mechanical ventilation duration in infants with bronchiolitis requiring mechanical ventilation.

Main Methods:

• Systematic review and meta-analysis of prospective randomized controlled trials (RCTs) and quasi-RCTs.
• Searched multiple databases including CENTRAL, MEDLINE, EMBASE, CINAHL, LILACS, and Web of Science.
• Two independent reviewers selected studies, extracted data, and performed analyses.

Main Results:

• Three small RCTs with 79 participants were included.
• Pooled analysis showed no significant difference in mechanical ventilation duration, but reduced intensive care unit (ICU) stay.
• After heterogeneity adjustment, mechanical ventilation and ICU stay durations were significantly lower with surfactant; improved oxygenation and CO2 elimination were observed without adverse effects.

Conclusions:

• Current evidence is insufficient to confirm surfactant therapy's effectiveness for mechanically ventilated infants with bronchiolitis.
• Larger, adequately powered trials and cost-effectiveness analyses are required.
• Further research is needed to evaluate exogenous surfactant therapy for intensive care management of bronchiolitis.