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Sleep macro-architecture and micro-architecture in children born preterm with sleep disordered breathing

Martin Chan1,2, Tracy C H Wong1,2, Aidan Weichard1

  • 1The Ritchie Centre, Hudson Institute of Medical Research and Department of Paediatrics, Monash University, Melbourne, VIC, Australia.

Pediatric Research
|June 14, 2019
PubMed

Insights

Children born preterm with sleep disordered breathing show altered sleep micro-architecture, including increased theta power and slow wave activity (SWA). This suggests greater sleep debt, impacting sleep quality in this vulnerable population.

Area of Science:

  • Pediatric Sleep Medicine
  • Neuroscience
  • Developmental Pediatrics

Background:

  • Preterm birth and sleep disordered breathing (SDB) are significant factors affecting pediatric sleep.
  • This study investigates the distinct impacts of SDB on sleep architecture in children born preterm versus those born at term.

Purpose of the Study:

  • To compare the effects of SDB on sleep macro- and micro-architecture in children born preterm and at term.
  • To determine if preterm birth exacerbates sleep disruption in children with SDB.

Main Methods:

  • Analysis of polysomnographic data from 50 children born preterm and 50 born at term, matched for age and SDB severity.
  • Sleep macro-architecture assessed using standard criteria.
  • Sleep micro-architecture evaluated via EEG spectral analysis, focusing on theta power and slow wave activity (SWA) during different sleep stages.

Main Results:

  • No significant differences in demographic, respiratory, or sleep macro-architecture parameters were found between preterm and term groups.
  • Ex-preterm children exhibited increased theta power in N2 sleep (F4, C4) and significantly higher SWA in the second NREM period (F4, C4).

Conclusions:

  • Children born preterm with SDB demonstrate altered sleep micro-architecture, characterized by increased theta power and SWA.
  • These findings suggest a heightened sleep debt and impaired sleep debt dissipation in ex-preterm children.
  • Further research is needed to explore potential links between these sleep alterations and neurocognitive or behavioral outcomes.
Abstract

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