Accuracy Analysis of Embletta X100 for the Diagnosis of Obstructive Sleep Apnea and the Assessment of Sleep Structure.
- Author:
Hyun Jun KIM
1
;
Jae Hoon CHO
;
So Young KANG
;
Byoung Joo CHOI
Author Information
- Publication Type:Original Article
- Keywords: Obstructive sleep apnea; Portable sleep monitoring; Embletta X100
- MeSH: Apnea; Diagnosis*; Humans; Methods; Polysomnography; Sensitivity and Specificity; Sleep Apnea, Obstructive*; Sleep Stages; Snoring
- From:Journal of Rhinology 2018;25(1):32-37
- CountryRepublic of Korea
- Language:English
- 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.
