title: Comparison of home oximetry monitoring with laboratory polysomnography in children.
abstract: OBJECTIVE
  To measure the accuracy and reliability of a portable home oximetry monitor with an automated analysis for the diagnosis of obstructive sleep apnea (OSA) in children.
  
  
  METHODS
  Prospective cohort study.
  
  
  METHODS
  Alberta Lung Association Sleep Center, Alberta Children's Hospital Sleep Clinic.
  
  
  METHODS
  Consecutive, otherwise healthy children, aged 4 to 18 years, presenting to the Pediatric Sleep Service at the Alberta Children's Hospital for assessment of possible OSA.
  
  
  METHODS
  All subjects underwent 2 nights of monitoring in the home with an oximetry-based portable monitor with an automatic internal scoring algorithm. A third night of monitoring was done simultaneously with computerized laboratory polysomnography according to American Thoracic Society guidelines.
  
  
  RESULTS
  Both test-retest reliability of the portable monitor-based desaturation index (DI) between 2 nights at home and between laboratory and home were high using the Bland and Altman analysis (mean agreement, 0.32 and 0.64; limits of agreement, - 8.00 to 8.64 and - 0.75 to 6.50, respectively). The polysomnographic apnea-hypopnea index (AHI) agreed poorly with the portable monitor DI (mean difference, 1.27; limits of agreement, - 12.02 to 15.02). The sensitivity and specificity of the monitor for the identification of moderate sleep apnea (polysomnography AHI > 5/h) were 67% and 60%, respectively.
  
  
  CONCLUSIONS
  Portable monitoring based only on oximetry alone is not adequate for the identification of OSA in otherwise healthy children.
authors: Department of Pediatrics, University of Calgary, Calgary, AB, Canada. val.kirk@calgaryhealthregion.ca
authors: Valerie G
authors: VG
authors: Kirk
authors: Shelly G
authors: SG
authors: Bohn
authors: W Ward
authors: WW
authors: Flemons
authors: John E
authors: JE
authors: Remmers
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005240:Feasibility Studies; D005260:Female; D018575:Home Care Services, Hospital-Based; D006801:Humans; D008297:Male; D010092:Oximetry / Q000295:instrumentation; D017286:Polysomnography; D011446:Prospective Studies; D012372:ROC Curve; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis*