title: Quick Diagnosis in Obstructive Sleep Apnea Syndrome: WatchPAT-200.
abstract: BACKGROUND
  Obstructive sleep apnea syndrome (OSAS) is a highly prevelant disorder and found in approximately 2-4% of middle-aged adults.
  
  
  OBJECTIVE
  To assess the efficacy of Watch-PAT-200 in the diagnosis of obstructive sleep apnea syndrome (OSAS).
  
  
  METHODS
  Patients suspected of having OSAS underwent overnight Level I polisomnography and simultaneously wore Watch-PAT-200 in the sleep laboratory.
  
  
  RESULTS
  51 adult patients included in the study. The average age was 45.3±10.5 years and the average body mass index (BMI) was 29.4±4.0 kg/m2. There was a high agreement between PSG and Watch PAT regarding apnea-hypopnea index, respiratory disturbance index and oxygen desaturation index. Significant but a low agreement was found in stage 1 and 2 of non-REM sleep when two methods compared. No agreement was found between PSG and Watch-PAT regarding stage 3 and 4 of non-REM sleep. Very low agreement was found between PSG and Watch-PAT regarding the REM sleep.
  
  
  CONCLUSIONS
  Watch-PAT-200 is an effective method in the diagnosis of OSAS.
authors.affiliation: Department of Otorhinolaryngology, Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey.
authors.forename: Tijen
authors.initials: T
authors.lastname: Ceylan
authors.forename: Hikmet
authors.initials: H
authors.lastname: Fırat
authors.forename: Gökhan
authors.initials: G
authors.lastname: Kuran
authors.forename: Sadık
authors.initials: S
authors.lastname: Ardıç
authors.forename: Esra
authors.initials: E
authors.lastname: Bilgin
authors.forename: Fatih
authors.initials: F
authors.lastname: Celenk
keywords: Obstructive; Peripheral Arterial Disease; Sleep Apnea