Authors: GERGELY, Viktor; PALLOS, Henrik¹; MASHIMA, Kunihiro²; MIYAZAKI, Soichiro²; TANAKA, Toshihiko³; OKAWA, Masako; YAMADA, Naoto⁴

Source: Sleep and Biological Rhythms, Volume 7, Number 1, January 2009 , pp. 43-51(9)

Publisher: Wiley-Blackwell

Abstract:

In order to assess the usefulness of the SleepStrip (SS) in screening for obstructive sleep apnea-hypopnea syndrome (OSAHS) in Japanese settings, we measured its sensitivity and specificity against the reference standard diagnostic full-night polysomnography (FN-PSG) using a real-life timeline, and compared them to that of the simultaneously applied pulse oximeter (PO), a routinely used OSAHS screener in Japan. A total of 110 consecutive subjects with the symptoms of OSAHS underwent simultaneous SS and PO screening tests followed by a diagnostic FN-PSG within 7 weeks, a common time frame for accessing PSG in Japan. Data for 83 subjects were available for the final analysis. We analyzed both SS and PO output data as a standalone screening parameter, without combining it with other predictors for OSAHS. We obtained 71.9%, 68.3%, 57.1% and 63.2%, 61.0%, 39.3% sensitivities for SS and PO respectively, in order of mild, moderate, and severe cut-off points. The specificity values were 73.1%, 81.0%, and 87.3% for SS, while they were 92.3%, 100.0%, and 98.2% for PO in order of rising cut-off points. The SS demonstrated better screening performance with high compliance compared to the routinely used PO in our real-life timeline study; however, this performance is still lower than required to fully recommend SS as a large-scale standalone screener in the diagnostic pathway of OSAHS in Japan.

Keywords: obstructive sleep apnea-hypopnea syndrome (OSAHS); screening; SleepStrip; usefulness

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1479-8425.2009.00385.x

Affiliations: 1: Faculty of Pharmaceutical Science, Doshisha Women's College, Kyoto, and 2: Sleep Medicine, Shiga University of Medical Science, Otsu, 3: Shiga University of Medical Science Satellite Sleep Clinic, Kyoto, Japan 4: Departments of Psychiatry and

Publication date: 2009-01-01

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