title: [Obstructive sleep apnea in shift workers].
abstract: The aim of the study was to compare intensity of sleep disordered breathing in standard nocturnal polisomnography (PSG) and diurnal PSG after night shift in shift workers with obstructive sleep apnea syndrome.
  
  
  METHODS
  25 shift workers (24 M, 1 F), aged 45,4 +/- 9,1 yrs, of mean BMI 31,9 +/- 4,02 kg/m2 were studied. Nocturnal PSG and diurnal PSG after night shift were performed in all participants.
  
  
  RESULTS
  The mean apnea/hypopnea index (AHI) in diurnal PSG was higher than AHI in nocturnal PSG, 47,8+/- 27,4/h vs 38,0 +/-24,1/h respectively, (p<0,05). Not significant tendency towards higher oxygen desaturation index (ODI) in diurnal PSG was observed, 40,4 +/-25,5/h vs 31,9 +/-25,8/h respectively.
  
  
  CONCLUSIONS
  The study demonstrated that there is a significant increase in AHI in diurnal PSG after night shift compared to standard night PSG in shift workers with OSAS. This may negatively influence diagnosis and treatment.
authors.affiliation: Katedra i Klinika Chorób Wewnetrznych Pneumonologii i Alergologii AM w Warszawie. mpaciorek@wp.pl
authors.forename: Marcin
authors.initials: M
authors.lastname: Paciorek
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Byśkiniewicz
authors.forename: Piotr
authors.initials: P
authors.lastname: Bielicki
authors.forename: Ryszarda
authors.initials: R
authors.lastname: Chazan
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018670:Monitoring, Ambulatory / Q000379:methods; D009784:Occupational Diseases / Q000175:diagnosis / Q000503:physiopathology*; D017286:Polysomnography; D012189:Retrospective Studies; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis / Q000503:physiopathology*; D012892:Sleep Deprivation / Q000503:physiopathology*; D020178:Sleep Disorders, Circadian Rhythm / Q000175:diagnosis / Q000503:physiopathology*; D014940:Work Schedule Tolerance