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Accuracy Analysis of Embletta X100 for the Diagnosis of Obstructive Sleep Apnea and the Assessment of Sleep Structure

Authors
Kim, HJ; Cho, JH; Kang, SY; Choi, BJ
Citation
Journal of Rhinology, 25(1):32-37, 2018
Journal Title
Journal of Rhinology
ISSN
1229-14982384-4361
Abstract
BACKGROUND AND OBJECTIVES: To measure the accuracy of Embletta X100, a level 2 portable sleep monitoring device, for diagnosis of obstructive sleep apnea and assessment of sleep structure.
MATERIALS AND METHOD: We enrolled 200 consecutive patients who had been referred due to habitual snoring or witnessed apnea during sleep and had undergone standard polysomnography (PSG). We created a simulated situation similar to that of the Embletta X100 using only data from PSG and scored the sleep stage and the apnea-hypopnea index (AHI). Thereafter, the results of PSG and simulated Embletta X100 were compared.
RESULTS: Sensitivity, specificity, and positive and negative predictive values of simulated Embletta X100 based on PSG were nearly 100% at three different cutoff values of AHI (5, 15, and 30). Intraclass correlation (ICC) of simulated Embletta X100 based on PSG was also excellent (≥0.9) for most of the sleep-related parameters and respiratory index. However, ICC of sleep stage percent was variable according to sleep stage (>0.9 for N1 and N2, 0.664 for N3, and 0.864 for R).
CONCLUSION: Although sleep staging is not very precise, Embletta X100 matches well with PSG overall.
Keywords
Obstructive sleep apneaPortable sleep monitoringEmbletta X100
DOI
10.18787/jr.2018.25.1.32
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Otolaryngology
Journal Papers > Research Organization > Institute for Medical Sciences
Journal Papers > School of Medicine / Graduate School of Medicine > Cardiology
AJOU Authors
김, 현준강, 소영최, 병주
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