Using new digital-based technology is a promising solution to the underreporting of sleep apnea highlighted by academical societies in recent years. The Circul system is a reliable and comfortable choice for OSA assessment.ĭetermining the presence of modifiable risk factors for atrial fibrillation (AF), such as sleep apnea is of clinical importance due to the potential impact targeting these risk factors can have on the progression and burden of AF. Using a threshold of AHI ≥5 events/h, the Circul had 87% sensitivity, 83% specificity, 5.09 positive likelihood ratio (LR+), 86% accuracy, and 0.929 area under the curve (AUC).Ĭircul ring pulse oximetry can detect OSA with reasonable reliability. Circul-ODI had a good correlation (r=0.91, p<0.0001) and close agreement with PSG-AHI (Bland-Altman analysis: Mean Difference 6.4, 95% CI -14.8 to 27.5 events/h). CT90 and CT90/TST between the two methods were not different the MSpO2 level calculated by PSG was slightly lower than Circul, 95.0% (93.0-96.0%) vs 95.3% (93.9-96.6%), P<0.0001. The ODI was 25.3☒4.5 events/h using PSG and 22.2☒4.5 events/h using Circul (P<0.0001), with an intraclass correlation coefficient (ICC) of 0.884. Oxygen desaturation index (ODI), mean oxygen saturation (MSpO2), cumulative time at SpO2<90% (CT90), cumulative percentage of sleep time spent with SpO2<90% (CT90/TST) were derived and compared for the Circul and the PSG. All participants underwent simultaneous polysomnography (PSG) and Circul testing in a sleep laboratory. We recruited 207 Chinese Han subjects: 70% males, mean age 48.2☑4.7 years, mean BMI 27.6±4.8 kg/m2 and mean AHI 28.6☒5.2 events/h. We evaluated the ability of Circul to detect obstructive sleep apnea in Chinese adults. The NightOwl-REI achieved a close correlation and REI-categorization with the MSSS-AHI, especially in light of the significant inter-scorer variability of the analysis of the PSG.Ī novel ring-worn oximeter (Circul) uses reflective photoplethysmography and automated signal processing to calculate oxygen desaturations. 743, after double-labeling near-boundary participants. 812 and the agreement between the ZOL-AHI and MSSS-AHI was. After categorization of the AHI, the agreement between the NightOwl-REI and the MSSS-AHI was. The NightOwl-REI and ZOL-AHI had a correlation of. 001), which was close to the correlation between the ZOL-AHI and MSSS-AHI (ρ =. The NightOwl-REI had a high correlation with the MSSS-AHI (ρ =. The respiratory event index (REI) derived by NightOwl (NightOwl-REI), the apnea-hypopnea index (AHI) derived by Ziekenhuis Oost-Limburg (ZOL-AHI), and the AHI derived by YMT (MSSS-AHI) were compared. (YMT) after analysis by the Michele Sleep Scoring System (MSSS). In order to establish an external benchmark, all PSG tests were edited by a somnologist of Younes Medical Technologies Ltd. The software derives actigraphy from the former, and blood oxygen saturation and peripheral arterial tone, among other features, from the latter.ĭata of 101 participants who underwent an in-laboratory polysomnography (PSG), while wearing the NightOwl sensor, were collected. The sensor acquires accelerometer and photoplethysmographic data. The system consists of a sensor placed on the fingertip and a cloud-based analytics software. The objective of this study was to evaluate the performance of a miniaturized home sleep apnea test, called NightOwl.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |