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Updated: Sep 1, 2025

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Obstructive sleep apnea is position dependent in young infants

Hanna-Leena Kukkola1,2, Turkka Kirjavainen3,4,5

  • 1Department of Pediatrics, New Children's Hospital, Helsinki, Finland.

Pediatric Research
|August 16, 2022
PubMed

Insights

Infants under six months experience more upper airway obstruction when sleeping on their backs compared to their sides. Side-sleeping may help reduce obstructive events in infants.

Area of Science:

  • Pediatric sleep medicine
  • Respiratory physiology in infants

Background:

  • Obstructive sleep apnea (OSA) in infants with Pierre Robin sequence is known to be sleep-position dependent.
  • The impact of sleep position on obstructive events in otherwise healthy infants is not well-established.

Purpose of the Study:

  • To investigate the influence of sleep position on breathing events in infants younger than six months.
  • To compare obstructive events between supine and side-sleeping positions in a cohort of young infants.

Main Methods:

  • Retrospective analysis of polysomnography data from a pediatric sleep center over ten years.
  • Included infants aged less than six months without genetic defects or structural anomalies.
  • Compared breathing parameters, including obstructive apnea-hypopnea index (OAHI) and end-tidal carbon dioxide, between supine and side sleeping positions.

Main Results:

  • 72 infants were analyzed, with a median corrected age of 4 weeks.
  • Upper airway obstruction (OAHI) was significantly more frequent in the supine position (median 8 h⁻¹) compared to the side position (median 4 h⁻¹).
  • Higher 95th-percentile end-tidal carbon dioxide levels and increased work of breathing were observed in the supine position.

Conclusions:

  • Young infants experience more frequent obstructive upper airway events when sleeping in the supine position compared to the side position.
  • Sleep position is a significant factor influencing upper airway obstruction in infants under six months.
  • Side-sleeping positioning may be a beneficial strategy in managing obstructive sleep apnea in young infants.
Abstract

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