title: Polysomnography in children scheduled for adenotonsillectomy.
abstract: OBJECTIVE
  Several studies suggest that a reliable diagnosis of childhood sleep-disordered breathing (SDB) requires polysomnography (PSG). We compared clinical and PSG-based diagnoses in children scheduled for adenotonsillectomy (AT). Parent responses on a validated Pediatric Sleep Questionnaire were used to determine which symptoms could help identify children with clinical diagnoses of SDB but normal PSG.
  
  
  METHODS
  Thirty-four children aged 5.0 to 12.9 years and scheduled for AT to treat clinically diagnosed sleep-disordered breathing underwent laboratory-based PSG. Results were scored by 3 different criteria: 1) >1 obstructive apnea (2 breaths or longer) per hour of sleep; 2) >5 apneas or hypopneas per hour of sleep; or 3) >1 apnea, hypopnea, or respiratory event-related arousal per hour of sleep.
  
  
  RESULTS
  Depending on the criterion used, the PSG documented SDB from a minimum of 18/34 subjects (53%, for criterion I) to as many as 30/34 subjects (88%, for criterion III). Among symptoms studied, absence of daytime mouth breathing and habitual snoring were most helpful in identification of children who had no evidence of SDB on PSG, by criterion I (Chi-square, P < 0.05). The absence of other common symptoms, such as "loud snoring" or "trouble breathing" at night, were not helpful.
  
  
  CONCLUSIONS
  Children with clinical diagnoses of SDB may not consistently meet PSG criteria for this disorder. Questions about daytime mouth breathing and habitual snoring might help clinicians recognize children who would not have SDB on objective testing.
  
  
  CONCLUSIONS
  Clinical identification of SDB confirmable on PSG could be improved. However, available outcome data do not yet clarify whether clinical or PSG criteria best identify children likely to suffer morbidity from SDB.
  
  
  METHODS
  C.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Michigan Health System, Ann Arbor, MI, USA. rweatherly@kumc.edu
authors.forename: Robert A
authors.initials: RA
authors.lastname: Weatherly
authors.forename: Deborah L
authors.initials: DL
authors.lastname: Ruzicka
authors.forename: Deanna J
authors.initials: DJ
authors.lastname: Marriott
authors.forename: Ronald D
authors.initials: RD
authors.lastname: Chervin
mesh_terms: D000233:Adenoidectomy; D000402:Airway Obstruction / Q000150:complications / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D017286:Polysomnography / Q000379:methods*; D011300:Preoperative Care; D012008:Recurrence; D012891:Sleep Apnea Syndromes / Q000150:complications / Q000175:diagnosis*; D014068:Tonsillectomy; D014069:Tonsillitis / Q000150:complications / Q000601:surgery