title: Obstructive sleep apnoea in children with adenotonsillar hypertrophy: prospective study.
abstract: OBJECTIVE
  To determine clinical and baseline polysomnographic data on obstructive sleep apnoea secondary to adenotonsillar hypertrophy in Hong Kong Chinese children.
  
  
  METHODS
  Prospective study.
  
  
  METHODS
  University teaching hospital, Hong Kong.
  
  
  METHODS
  Fifty children (35 boys and 15 girls) suspected to have obstructive sleep apnoea were recruited between January 1999 and December 1999.
  
  
  METHODS
  Symptoms questionnaire, electrocardiogram, chest radiograph, and full-night polysomnography.
  
  
  RESULTS
  All patients had symptoms suggestive of obstructive sleep apnoea. None were found to have clinical evidence of cor pulmonale. Forty-five (90%) of 50 children had obstructive sleep apnoea with a respiratory disturbance index of greater than five. Central and mixed apnoeas were rare. Tonsil size did not correlate with the severity of obstructive sleep apnoea.
  
  
  CONCLUSIONS
  Symptoms and signs suggestive of obstructive sleep apnoea can lead to a high detection rate and confirmation of obstructive sleep apnoea by polysomnography.
authors.affiliation: Department of Paediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong.
authors.forename: A M
authors.initials: AM
authors.lastname: Li
authors.forename: S
authors.initials: S
authors.lastname: Hui
authors.forename: E
authors.initials: E
authors.lastname: Wong
authors.forename: A
authors.initials: A
authors.lastname: Cheung
authors.forename: T F
authors.initials: TF
authors.lastname: Fok
mesh_terms: D000234:Adenoids / Q000473:pathology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006984:Hypertrophy; D008297:Male; D014066:Palatine Tonsil / Q000473:pathology*; D011446:Prospective Studies; D020181:Sleep Apnea, Obstructive / Q000209:etiology*