Making a deep impression by looking further than AHI
Patients with REM-related OSA have lower, or even normal, AHI scores and report milder daytime symptoms, which can lead to misdiagnosis.2
WatchPAT® 300 and WatchPAT® ONE HSATs are powered by breakthrough PAT® technology, which can detect sleep stages and REM sleep apnea.
When total recording time is used, 20% of cases are misdiagnosed/misclassified.3
With advanced actigraphy that differentiates between wake and sleep periods, WatchPAT® 300 and WatchPAT® ONE use true sleep time to calculate AHI and RDI.
References: 1. Yalamanchali S, Farajian V, Hamilton C, Pott TR, Samuelson CG, Friedman M. Diagnosis of obstructive sleep apnea by peripheral arterial tonometry: meta-analysis. JAMA Otolaryngol Head Neck Surg. 2013;139(12):1343-1350. doi:10.1001/jamaoto.2013.5338 2. Chami HA, Baldwin CM, Silverman A, et al. Sleepiness, quality of life, and sleep maintenance in REM versus non-REM sleep-disordered breathing. Am J Respir Crit Care Med. 2010;181(9):997-1002. 3. Schutte – Rodin, et al. Comparison of AHI using recording time versus sleep time (abstract). J Sleep. 2014;(suppl):A373. 4. Eisenman NA, Westover MB, Ellenbogen JM, Bianchi MT. The impact of body posture and sleep stages on sleep apnea severity in adults. J Clin Sleep Med. 2012;8(6):655-666. 5. Singh J. Basics of central sleep apnea. Accessed June 3, 2021. https://www.acc.org/latest-in-cardiology/articles/2014/07/22/08/25/basics-of-central-sleep-apnea 6. Ong JC, Crawford MR. Insomnia and obstructive sleep apnea. Sleep Med Clin. 2013 September 1;8(3): 389-398, /j.jsmc.2013.04.004. 7. Bjornsdottir E., Keenan BT, Eysteinsdottir B, et al. Quality of life among untreated sleep apnea patients compared to the general population and changes after treatment with positive airway pressure. J Sleep Res. 2015;24(3):328-338./jsr.12262. 8. Punjabi NM, Patil S, Crainiceanu C, Aurora RN. Variability and misclassification of sleep apnea severity based on multi-night testing. Chest. 2020; 158(1):365-373.
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