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.
Abstract

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