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Polysomnography Reference Values in Healthy Newborns.

Ameet S Daftary1, Hasnaa E Jalou1, Lori Shively1

  • 1Division of Pediatric Pulmonology, Allergy and Sleep Medicine, Department of Pediatrics, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, Indiana.

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|March 12, 2019
PubMed
Summary
This summary is machine-generated.

Newborn polysomnography (PSG) reference values are now available. Healthy infants show higher apnea-hypopnea index (AHI) than older children, suggesting current sleep apnea classifications may not apply.

Keywords:
apneainfantpolysomnographysleep study

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Area of Science:

  • Neonatal sleep medicine
  • Pediatric sleep studies
  • Respiratory physiology in infants

Background:

  • Polysomnography (PSG) is crucial for infant assessment.
  • Standardized PSG reference values for newborns are lacking.
  • This study establishes normative PSG data for healthy neonates.

Purpose of the Study:

  • To provide reference values for polysomnography (PSG) variables in healthy newborn infants.
  • To establish normative data based on recent standardization efforts.
  • To aid in the interpretation of sleep studies in neonates.

Main Methods:

  • A cross-sectional study involving 30 healthy term newborn infants (37-42 weeks gestation).
  • Standardized PSG data collection and interpretation using American Academy of Sleep Medicine criteria.
  • PSG testing performed before 30 days of age.

Main Results:

  • Mean sleep efficiency was 71%, with sleep architecture including 16.1% transitional, 43.3% NREM, and 40.6% REM sleep.
  • Mean arousal index was 14.7 events/h; respiratory arousal index was 1.2 events/h.
  • Mean apnea-hypopnea index (AHI) was 14.9 events/h, with central, obstructive, and mixed apnea indices of 5.4, 2.3, and 1.2 events/h, respectively. Mean oxygen saturation was 97.9% (nadir 84.4%).

Conclusions:

  • Newborns exhibited lower sleep efficiency and higher AHI compared to children over 1 year.
  • The AHI in newborns was also higher than in infants over 1 month.
  • Current sleep apnea severity classifications may require re-evaluation for application to newborn infants.