Oral Selenium as an Adjunct in the Treatment of Acute Lower Respiratory Tract Infections in Children: A Double-Blind

Rubeena Jamir Shaikh1, Trupti Amol Joshi2, Smita Madhusudan Mundada1

  • 1Department of Pediatrics, Government Medical College Chhatrapati Sambhajinagar, Aurangabad, Maharashtra, India.

Indian Pediatrics
|April 9, 2025
PubMed

Insights

Oral selenium supplementation did not shorten recovery time or hospital stays for children with acute lower respiratory tract infections (ALRTI). However, it significantly reduced the need for mechanical ventilation in these young patients.

Area of Science:

  • Pediatrics
  • Clinical Nutrition
  • Infectious Diseases

Background:

  • Acute lower respiratory tract infections (ALRTI) are a leading cause of childhood morbidity and mortality globally.
  • Selenium is an essential trace element with known immunomodulatory properties.
  • Understanding the role of micronutrients like selenium in managing pediatric infections is crucial for improving clinical outcomes.

Purpose of the Study:

  • To investigate the efficacy of oral selenium as an adjunctive therapy for children under five years old diagnosed with ALRTI.
  • To assess the impact of oral selenium on clinical recovery time, hospital stay duration, and the requirement for respiratory support.

Main Methods:

  • A double-blind, randomized controlled trial was conducted involving hospitalized children aged 6 months to 5 years with ALRTI.
  • Participants received either oral selenium (20-30 mcg/day) or a placebo daily until discharge, alongside standard medical care.
  • Primary outcome was time to clinical recovery; secondary outcomes included hospital stay duration, oxygen support needs, and adverse events.

Main Results:

  • No significant difference was observed in the median time to clinical recovery (72h vs. 96h) or hospital stay duration (6 days vs. 6 days) between the selenium and placebo groups.
  • A statistically significant reduction in the need for mechanical ventilation was noted in the selenium group (16.6%) compared to the placebo group (35%).
  • No adverse side effects were reported with oral selenium administration.

Conclusions:

  • Daily oral selenium supplementation (20-30 mcg) for 5-7 days does not accelerate clinical recovery or shorten hospital stays in young children with ALRTI.
  • Oral selenium may play a beneficial role in reducing the severity of ALRTI by decreasing the need for mechanical ventilation in this pediatric population.
  • Further research is warranted to elucidate the precise mechanisms and optimal use of selenium in pediatric respiratory infections.
Abstract

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