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Updated: Jan 31, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
Comparison of polygraphic parameters in children with adenotonsillar hypertrophy with vs without obstructive sleep
Xiao-Wen Zhang1, Yuan Li, Feng Zhou
1Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China. zyzdd7755@sina.com.cn
Insights
Children with adenotonsillar hypertrophy (ATH) and obstructive sleep apnea (OSA) experience more frequent and longer respiratory disturbances. Severe respiratory issues are key risk factors for developing OSA in children with ATH.
Area of Science:
- Pediatric Otolaryngology
- Sleep Medicine
- Respiratory Physiology
Background:
- Adenotonsillar hypertrophy (ATH) is common in children and can lead to obstructive sleep apnea (OSA).
- Understanding the polygraphic differences between children with ATH with and without OSA is crucial for diagnosis and management.
Purpose of the Study:
- To compare polysomnographic parameters in children diagnosed with adenotonsillar hypertrophy (ATH), differentiating between those with and without obstructive sleep apnea (OSA).
Main Methods:
- A prospective controlled study was conducted in a pediatric otolaryngology setting.
- Children with ATH underwent polysomnography to assess sleep macrostructure, microstructure, and respiratory events.
- Participants were classified into ATH with OSA or ATH without OSA groups based on the apnea index (AI).
Main Results:
- No significant differences in overall sleep macrostructure or microstructure were observed between the two groups.
- Children with ATH and OSA exhibited significantly more frequent and/or longer respiratory disturbances, including apnea-hypopnea indices (AHI), during both rapid eye movement (REM) and non-rapid eye movement (NREM) sleep.
- Specific events like obstructive events and hypopnea events were more prevalent in the OSA group.
Conclusions:
- Obstructive sleep apnea (OSA) can be viewed as a condition on a continuum with adenotonsillar hypertrophy (ATH).
- The study highlights severe respiratory disturbances as significant risk factors contributing to the development of OSA in children with ATH.
Objective:
To compare the polygraphic parameters in children with adenotonsillar hypertrophy (ATH) with vs without obstructive sleep apnea (OSA).
Design:
Prospective controlled study.
Setting:
Hospital-based pediatric otolaryngology practice.
Patients:
Children with ATH.
Interventions:
The children enrolled in the study underwent polysomnography. According to the apnea index (AI) (a patient who has at least 1 episode of apnea per hour of sleep is considered to have apnea), they were classified as having ATH with OSA or ATH without OSA.
Main Outcome Measures:
We evaluated polysomnography parameters to describe the macrostructure of sleep (sleep efficiency, nonrapid eye movement stages 1-4, and rapid eye movement) and the microstructure of sleep (using electroencephalogram results and movement arousals) and respiratory events.
Results:
Twenty children were classified as having ATH with OSA and 17 as having ATH without OSA. We found no significant differences in sleep macrostructure and microstructure between the ATH groups with vs without OSA. Apnea-hypopnea indices (AHI), respiratory disturbance events, hypopnea events in rapid eye movement and AHI, AI, respiratory disturbance events, obstructive events, hypopnea events, the duration of obstructive events, and hypopnea events during nonrapid eye movement were more frequent or of longer duration in children with OSA vs those without OSA (P < .05).
Conclusions:
Obstructive sleep apnea should be considered a disorder on the continuum of ATH. To our knowledge, our results clearly and for the first time demonstrate that more severe respiratory disturbances seem to be important risk factors for ATH to develop into OSA in children.
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