title: OSAS in children: correlation between endoscopic and polysomnographic findings.
abstract: OBJECTIVE
  To correlate polysomnographic findings with clinical history of apnea, the degree of obstruction caused by tonsillar hypertrophy, and to age group.
  
  
  METHODS
  267 children with a clinical diagnosis of obstructive sleep apnea (OSAS) were evaluated. Patients were divided into preschool- and school-age categories, and subdivided in 3 additional groups, according to tonsillar hypertrophy. Polysomnographic findings were compared within groups.
  
  
  RESULTS
  34% of children had history of OSAS and normal polysomnographic findings. Tonsillar hypertrophy was correlated to more severe apnea among preschool-age children, but not among school-age children. Among children with tonsillar hypertrophy, more severe apnea was observed in preschool-age children than in school-age children.
  
  
  CONCLUSIONS
  There is little correlation between polysomnographic and clinical findings in children with OSAS.
  
  
  CONCLUSIONS
  Adenotonsillar hypertrophy leads to more severe polysomnographic patterns in preschool-age children. More severe apnea is observed in younger children with adenotonsillar hypertrophy than in older ones.
authors.affiliation: Division of Pediatric Otorhinolaryngology, Federal University of São Paulo, Brazil. facpvalera@uol.com.br
authors.forename: Fabiana C P
authors.initials: FC
authors.lastname: Valera
authors.forename: Melissa A G
authors.initials: MA
authors.lastname: Avelino
authors.forename: Márcia B
authors.initials: MB
authors.lastname: Pettermann
authors.forename: Reginaldo
authors.initials: R
authors.lastname: Fujita
authors.forename: Shirley S N
authors.initials: SS
authors.lastname: Pignatari
authors.forename: Gustavo A
authors.initials: GA
authors.lastname: Moreira
authors.forename: Márcia L
authors.initials: ML
authors.lastname: Pradella-Hallinan
authors.forename: Sérgio
authors.initials: S
authors.lastname: Tufik
authors.forename: Luc L M
authors.initials: LL
authors.lastname: Weckx
mesh_terms: D000234:Adenoids / Q000473:pathology*; D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004724:Endoscopy; D005260:Female; D006801:Humans; D006984:Hypertrophy / Q000150:complications; D007223:Infant; D008297:Male; D014066:Palatine Tonsil / Q000473:pathology*; D017286:Polysomnography; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology