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Cognitive Effects of Adenotonsillectomy for Obstructive Sleep Apnea.
H Gerry Taylor1, Susan R Bowen1, Dean W Beebe2
1Department of Pediatrics, Rainbow Babies & Children's Hospital, University Hospitals Case Medical Center, Case Western Reserve University School of Medicine, Cleveland, Ohio;
Pediatrics
|July 29, 2016
Summary
Adenotonsillectomy (AT) showed small, selective cognitive benefits in children with obstructive sleep apnea syndrome (OSAS). These improvements in nonverbal reasoning and attention suggest limited but positive effects of AT on cognitive function.
Area of Science:
- Pediatric Sleep Medicine
- Neuropsychology
- Otolaryngology
Background:
- Obstructive sleep apnea syndrome (OSAS) in children can impact cognitive function.
- Evidence regarding the effects of adenotonsillectomy (AT) on cognitive test performance in children with OSAS is mixed.
- The Childhood Adenotonsillectomy Trial (ChAT) provides a robust dataset to investigate these effects.
Purpose of the Study:
- To evaluate the impact of adenotonsillectomy (AT) on cognitive test scores in children diagnosed with obstructive sleep apnea syndrome (OSAS).
- To compare cognitive changes between children undergoing early AT versus watchful waiting within the ChAT study.
- To explore the relationship between cognitive improvements and sleep measure changes following AT.
Main Methods:
- Randomized controlled trial comparing early AT (eAT) with watchful waiting in children aged 5-9 with OSAS.
- Neuropsychological tests administered at baseline and 7 months post-intervention.
- Mixed-effects models and regression analyses used to compare group changes and assess associations with sleep measures.
Main Results:
- Cognitive scores improved significantly more in the eAT group than the watchful waiting group (P < .05).
- Improvements were observed in nonverbal reasoning, fine motor skills, and selective attention, with small effect sizes (Cohen's d, 0.20-0.24).
- Gains in cognitive test scores for the eAT group correlated with improvements in sleep measures.
Conclusions:
- Adenotonsillectomy (AT) demonstrates small, selective positive effects on specific cognitive domains in children with OSAS.
- These cognitive benefits may be limited or require longer follow-up to become fully apparent compared to broader effects of AT on sleep, behavior, and quality of life.
- Further research with extended follow-up is warranted to fully elucidate the long-term cognitive impact of AT in pediatric OSAS.
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