BioScience Trends. 2017;11(3):126-132. (DOI: 10.5582/ddt.2017.01015)

Validation of a sheet-shaped body vibrometer for screening of obstructive sleep apnea.

Kogure T, Kobayashi M, Okawa T, Nakajima T, Inoue Y


SUMMARY

We assessed the validity of using a sheet-shaped body vibrometer (SBV) as a portable monitoring device for obstructive sleep apnea (OSA) screening. Seventy consecutive patients with suspected OSA underwent simultaneous in-laboratory polysomnography (PSG) and SBV. We evaluated the screening accuracy of the respiratory event index (REI) obtained with the SBV, using the REI based on either the estimated total sleep time (REI_eTST) or time in bed (REI_TIB); these were compared to the apnea-hypopnea index (AHI) obtained via PSG. Bland-Altman plots indicated that the mean difference between REI_eTST and AHI was lower than that between REI_TIB and AHI (1.2


KEYWORDS: Obstructive sleep apnea, sheet-shaped body vibrometer, portable monitor, validation, estimated total sleep time

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