alexa Accuracy of the Oxford Sleep Resistance Test versus Sim
ISSN: 2167-0277

Journal of Sleep Disorders & Therapy
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Research Article

Accuracy of the Oxford Sleep Resistance Test versus Simultaneous Electroencephalography to Detect Sleep Onset

Vincent Jobin1*, Annie Mathieu1, Pierre Rompré2, Mélanie Perraton-Brillon3, Geneviève Rondeau1 and Pierre Mayer1

1Department of Medicine, Centre hospitalier de l’Université de Montréal (CHUM),Canada

2Faculty of Dental Medicine, Université de Montréal, Canada

3Department of Pneumology, Hôpital Maisonneuve-Rosemont, Canada

Corresponding Author:
Dr Vincent Jobin
Centre hospitalier de l’Université de Montréal (CHUM)-3840
St-Urbain Street, Montreal, QC, Canada
Tel: 514 890-8000
Fax: 514 412-7123
E-mail: [email protected]

Received Date: January 27, 2017; Accepted Date: February 16, 2017; Published Date: February 28, 2017

Citation: Jobin V, Mathieu A, Rompré P, Brillon MP, Rondeau G, et al. (2017) Accuracy of the Oxford Sleep Resistance Test versus Simultaneous Electroencephalography to Detect Sleep Onset. J Sleep Disord Ther 6:257. doi:10.4172/2167-0277.1000257

Copyright: © 2017 Joblin V, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: The Oxford Sleep Resistance test (OSLER) is a useful tool to assess daytime vigilance. However, it has not been validated against simultaneous electroencephalography (EEG) recordings in large populations. The main objective of the study was to compare the OSLER values versus EEG-determined Sleep Onset latency (EEGSOL).

Methods: Patients referred for assessment of daytime vigilance were recruited from a tertiary sleep clinic. Patients underwent the OSLER (4 x 40 minutes trials; if 7 consecutive stimuli are missed, the trial is terminated and sleep onset is concluded to have occurred) with simultaneous EEG recordings. Determination of EEG-SOL using American Academy of sleep Medicine (AASM) criteria to score sleep during daytime testing was compared to OSLER values.

Results: 65 OSLER were performed in 65 subjects for a total of 260 trials (65X4 trials/OSLER). In 136 out of the 260 trials (52.3%), subjects remained awake according to the OSLER, while EEG-SOL was scored in 5 of the 136 trials (3.7%). Of the 124 trials (47.7%) with sleep onset, (i.e. 7 consecutive missed stimuli) the mean sleep onset value was 14.5 ± 10.9 min and EEG-SOL was recorded before the end of the trial in 37 trials (29.8%) (Mean difference EEG-SOL vs. OSLER 4.1 ± 5.8 min).

Conclusion: Using current AASM criteria for daytime testing, EEG-determined sleep onset latency is unlikely to occur in subjects with no sleep onset in the OSLER. However, the presence of sleep onset in the OSLER cannot be used as a precise surrogate to detect EEG sleep onset.

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