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Published on: December 6, 2016
Obstructive sleep apnea in Asian primary school children
Ryuichi Kobayashi1, Soichiro Miyazaki, Masayuki Karaki
1Sleep Disordered Breathing Center, Ayagawa National Health Insurance Sue Hospital, 1720-1 Sue, Ayagawa-cho, Ayauta-gun, Kagawa, 761-2103, Japan, koryuichi@kzc.biglobe.ne.jp.
Insights
Obstructive sleep apnea (OSA) is prevalent in primary school children, linked to enlarged tonsils and adenoids affecting nasal breathing. These conditions increase OSA risk in children.
Area of Science:
- Pediatric Sleep Medicine
- Otolaryngology
- Respiratory Health
Background:
- Obstructive sleep apnea (OSA) is a growing concern in pediatric populations.
- Enlarged tonsils and adenoids are common causes of upper airway obstruction in children.
- Understanding the interplay between respiratory issues and OSA is crucial for early intervention.
Purpose of the Study:
- To determine the prevalence of OSA in primary school children.
- To investigate the relationship between OSA, tonsillar hypertrophy, adenoid size, and nasal cavity patency.
- To assess the impact of tonsillar hypertrophy and adenoid enlargement on nasal airflow.
Main Methods:
- Evaluated 152 primary school children using physical examinations (tonsils, rhinoscopy), questionnaires, nasal resistance measurements, and home-based portable polysomnography.
- Radiography was used to assess pharyngeal tonsil size.
- Portable polysomnography identified children requiring full polysomnography (PSG).
Main Results:
- Obstructive apnea-hypopnea index (O-AHI) correlated positively with palatine tonsil enlargement.
- Adenoid hypertrophy significantly increased O-AHI and nasal resistance.
- The estimated prevalence of OSA was 7.9%, with 75% of those undergoing full PSG confirmed to have OSA.
Conclusions:
- Tonsillar hypertrophy and adenoid enlargement are significant risk factors for OSA in primary school children.
- Impaired nasal respiration is associated with an increased risk of developing OSA.
- Early identification and management of these conditions are vital for preventing OSA in children.
Purpose:
The objectives of this study were to examine the prevalence of obstructive sleep apnea (OSA) in primary school children, relationships between OSA and tonsillar hypertrophy, adenoid, and patency of the nasal cavity, and the effects of the tonsillar hypertrophy and adenoid on the nasal patency.
Methods:
An examination of the palatine tonsils and anterior rhinoscopy, completion of a questionnaire survey, a measurement of nasal resistance, an examination for sleep apnea at home using portable polysomnography device, and radiography of pharyngeal tonsil were performed in 152 primary school children.
Results:
The obstructive apnea hypopnea index (O-AHI) increased with enlargements in the palatine tonsils. The adenoidal nasopharyngeal ratio (A/N ratio) decreased with advances in grade. A significant difference was observed in the O-AHI between those with and without adenoid. The median value of the O-AHI increased with advances in grade. The nasal resistance was significantly higher in the group with adenoid compared as in the group without. It was also higher in the nasal disease group with OSA than in the group without. Full polysomnography(PSG) was recommended in 16 (10.5%) of 152 who underwent the examination using the portable polysomnography device, and of the eight who underwent PSG, six (75%) were confirmed to have OSA, while its prevalence in all subjects was estimated as 7.9%.
Conclusions:
Disturbances in nasal respiration as well as tonsillar hypertrophy and adenoid were found to be a risk factor of OSA in primary school children.
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