Related Experiment Video
Updated: Aug 2, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Developmental changes in obstructive sleep apnea and sleep architecture in Down syndrome
Ryan Kahanowitch1, Hector Aguilar1, Miriam Weiss1
1Division of Pediatric Pulmonary and Sleep Medicine, Children's National Hospital, George Washington University, Washington, District of Columbia, USA.
Insights
Children with Down syndrome (DS) have significantly higher rates of severe obstructive sleep apnea (OSA), particularly in young children and adolescents. Sleep architecture in DS is also affected, with longer REM sleep onset and increased arousals.
Area of Science:
- Pediatric Sleep Medicine
- Neurodevelopmental Disorders
- Genetics
Background:
- Down syndrome (DS), or Trisomy 21, is linked to neurodevelopmental abnormalities and increased risk of sleep apnea.
- Understanding age-related sleep differences in DS is crucial for early intervention.
Purpose of the Study:
- To characterize age-related differences in sleep architecture and obstructive sleep apnea (OSA) severity in children with DS compared to euploid children.
- To identify specific sleep disturbances associated with DS across different age groups.
Main Methods:
- Retrospective analysis of polysomnograms from 4151 children (0-18 years), including 218 with DS.
- Comparison of sleep parameters between DS and euploid individuals.
Main Results:
- Severe OSA was more prevalent in the DS group (34%) versus euploid (18%), with peaks in children under 3 and over 10 years.
- Children with DS exhibited prolonged REM sleep onset latency and higher arousal indexes.
- These differences persisted after adjusting for age, sex, and BMI.
Conclusions:
- Severe OSA in children with DS follows a U-shaped age distribution, peaking in infancy and adolescence.
- DS is associated with altered sleep architecture, including longer REM latency and elevated arousals.
- These findings provide critical insights for managing sleep and neurodevelopment in children with DS.
Background:
Down syndrome (DS, also known as Trisomy 21) is a condition associated with abnormal neurodevelopment and a higher risk for sleep apnea. Our study sought to better understand and characterize the age-related developmental differences in sleep architecture and obstructive sleep apnea (OSA) severity in children with DS compared to euploid individuals.
Methods:
Retrospective review of polysomnograms in over 4151 infants, children, and adolescents in the pediatric sleep center at Children's National Hospital in Washington D.C. (0-18 years) including 218 individuals with DS.
Results:
The primary findings of our study are that: (1) severe OSA (obstructive apnea-hypopnea index ≥ 10/h) was more prevalent in the DS group (euploid 18% vs. DS 34%, p < 0.001) with the highest OSA severity being present in young children (<3 years old) and adolescents (>10 years old), (2) abnormalities in sleep architecture in children with DS were characterized by a prolonged rapid-eye movement (REM) sleep onset latency (SOL) (euploid 119 min vs. DS 144 min, p < 0.001) and greater arousal indexes (euploid 10.7/h vs. DS 12.2/h, p < 0.001), (3) developmental changes in the amount of REM sleep or slow wave sleep were not different in DS individuals relative to euploid children, (4) multivariate analyses showed that OSA and REM sleep latency differences between DS and euploid individuals were still present after adjusting by age, biological sex, and body mass index.
Conclusion:
Severe OSA is highly prevalent in children with DS and follows an age-dependent "U" distribution with peaks in newborns/infants and children >10 years of age. Children with DS also have disturbances in sleep architecture characterized by a longer REM SOL and elevated arousal indexes. As sleep cycle generation and continuity play crucial roles in neuroplasticity and cognitive development, these findings offer clinically relevant insights to guide anticipatory guidance for infants, children, and adolescents with DS.
Related Concept Videos
Sleep Apnea
The condition is more prevalent among...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
Other Pulmonary Disorders
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Oppositional Defiant Disorder
Diagnostic Criteria and...
Alterations in Respiration II
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...

