title: [Pulse oximetry screening for sleep-disordered breathing in stroke].
abstract: BACKGROUND
  The prevalence of sleep-disordered breathing, particularly obstructive sleep apnea, among stroke patients is high. Routine screening with the current diagnostic gold standard of polysomnography is not feasible. Pulse oximetry could be a simple screening test.
  
  
  METHODS
  The signal of pulse oximetry, recorded during full polysomnography in 184 stroke patients during neurological rehabilitation, was analyzed automatically by software for desaturations >/= 4 %. The polysomnographic apnoea-hypopnoea-index (AHI) was used as the diagnostic gold standard and compared with the oxygen desaturation index (ODI).
  
  
  RESULTS
  Correlation between AHI of PSG and ODI of oximetry was r = 0.84 (p < 0.001). Dependent on the definition of SDB (AHI 10, 15, 20 or 30/h) and the cut-off-point for the ODI (e. g. 15/h) sensitivity was 32 - 83 % and specificity 99 - 96 %. The diagnostic accuracy as determined by the area under the ROC-curve was 96 %.
  
  
  CONCLUSIONS
  Automated analysis of pulse oximetry gives reasonable results for screening for SDB in stroke patients and could be used in populations with high pre-test probability.
authors.affiliation: Ruhrlandklinik, Abt. Pneumologie/Schlaf- und Beatmungsmedizin, Essen, Germany. thomas.wessendorf@uni-essen.de
authors.forename: T E
authors.initials: TE
authors.lastname: Wessendorf
authors.forename: G
authors.initials: G
authors.lastname: Alymov
authors.forename: Y M
authors.initials: YM
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Stampa
authors.forename: A F
authors.initials: AF
authors.lastname: Thilmann
authors.forename: H
authors.initials: H
authors.lastname: Teschler
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010092:Oximetry / Q000379:methods*; D010100:Oxygen / Q000097:blood*; D017286:Polysomnography; D012372:ROC Curve; D012044:Regression Analysis; D012120:Respiration Disorders / Q000097:blood / Q000175:diagnosis*; D012893:Sleep Wake Disorders / Q000097:blood / Q000175:diagnosis*; D020521:Stroke / Q000097:blood / Q000150:complications* / Q000503:physiopathology*
chemical_list: D010100:Oxygen
vernacular_title: Pulsoximetrie als Schlafapnoescreening bei Schlaganfallpatienten.