title: Severity assessment of obstructive sleep apnea syndrome (OSAS) in pediatric patients.
abstract: OBJECTIVE
  To assess obstructive sleep apnea syndrome (OSAS) severity among pediatric patients. Design. A retrospective review of charts and polysomnography (PSG) results.
  
  
  RESULTS
  Apnea-hypopnea index (AHI) and the cumulative duration of sleep while O(2)SAT was <91% were determined in 389 patients with OSAS. Patients with AHI ranging <5, 5 to 15, 16 to 30, and >30, had mean lowest observed O(2)SAT values of 88% +/- 8%, 85% +/- 9%, 78% +/- 12%, and 69% +/- 13%, respectively. The patients spent a mean of 3.5% +/- 9.2 % of their sleep time with O(2)SAT < 91%. AHI values showed a poor linear correlation with the lowest measured O(2)SAT values. Body mass index percentiles showed no significant linear correlation with AHI values or with the lowest measured values of O(2)SAT.
  
  
  CONCLUSIONS
  Values of AHI cannot accurately predict severity of oxyhemoglobin desaturation in pediatric OSAS and vice versa. No significant correlation between body mass index percentiles and severity of OSAS was established.
authors.affiliation: Division of Critical Care Medicine and the Sleep Disorder Center, North Shore-Long Island Jewish Health System, Schneider Children's Hospital, New Hyde Park, New York 11040, USA.
authors.forename: Edmund
authors.initials: E
authors.lastname: Goroza
authors.forename: Mayer
authors.initials: M
authors.lastname: Sagy
authors.forename: Noa
authors.initials: N
authors.lastname: Sagy
authors.forename: Kevin
authors.initials: K
authors.lastname: Bock
mesh_terms: D015992:Body Mass Index; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D010108:Oxyhemoglobins / Q000378:metabolism; D017286:Polysomnography; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D012720:Severity of Illness Index; D012737:Sex Factors; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis* / Q000378:metabolism / Q000503:physiopathology
chemical_list: D010108:Oxyhemoglobins