Relationship between sleep, sleep apnea, and neuropsychological function in children with Down syndrome

Lee J Brooks1, Molly N Olsen, Ann Mary Bacevice

  • 1Division of Pulmonary Medicine, Sleep Center, Children's Hospital of Philadelphia, University of Pennsylvania, 34th Street and Civic Center Boulevard, Philadelphia, PA, 19104, USA, brooksl@email.chop.edu.

Insights

Sleep disordered breathing (SDB) is common in children with Down syndrome but not a primary cause of cognitive deficits. However, improving sleep quality, particularly slow-wave sleep, and treating SDB can enhance attention and cognitive function.

Area of Science:

  • Neuroscience
  • Pediatrics
  • Sleep Medicine

Background:

  • Down syndrome is associated with cognitive impairments.
  • Sleep disordered breathing (SDB) is prevalent in children with Down syndrome.
  • The impact of SDB on neuropsychological deficits in this population requires further investigation.

Purpose of the Study:

  • To investigate the relationship between sleep, SDB, and neuropsychological deficits in children with Down syndrome.
  • To determine if treating SDB improves cognitive function in these patients.

Main Methods:

  • A cohort study involving 25 children with Down syndrome.
  • Utilized polysomnography (PSG) and Multiple Sleep Latency Testing (MSLT).
  • Administered comprehensive neuropsychological tests before and after SDB treatment.

Main Results:

  • No direct link found between SDB and baseline neuropsychological deficits.
  • Total sleep time and slow-wave sleep correlated with cognitive ability, comprehension, achievement, and adaptive behavior.
  • Successful SDB treatment led to improvements in attention and adaptive behaviors.

Conclusions:

  • SDB is not the primary driver of cognitive deficits in Down syndrome.
  • Sleep quantity and quality, especially slow-wave sleep, are crucial for cognitive function.
  • Treatment of SDB shows potential to improve attention in children with Down syndrome.
Abstract

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