Sleep structure in patients with COMISA compared to OSA and insomnia

Bernice M. Wulterkens (Corresponding author), Lieke W.A. Hermans, Pedro Fonseca, Jerryll Asin, Nanny Duis, Hennie C.J.P. Janssen, Sebastiaan Overeem, Merel M. van Gilst

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Samenvatting

STUDY OBJECTIVES: Obstructive sleep apnea (OSA) and insomnia frequently co-occur, making diagnosis and treatment challenging. We investigated differences in sleep structure between patients with OSA, insomnia, and comorbid insomnia and sleep apnea (COMISA) to identify characteristics that can be used to improve the diagnosis of COMISA.

METHODS: We obtained polysomnography data of 326 patients from the Sleep and OSA Monitoring with Non-Invasive Applications database. The group included patients with OSA (n = 199), insomnia (n = 47), and COMISA (n = 80). We compared statistics related to sleep structure between the 3 patient groups.

RESULTS: Wake after sleep onset was significantly shorter for the OSA group (median: 60.0 minutes) compared to the COMISA (median: 83.3 minutes, P < .01) and the insomnia (median: 83.5 minutes, P = .01) groups. No significant differences were found in the total number of awakenings and the number of short (up to and including 2 minutes) and medium-length awakenings (2.5 up to and including 4.5 minutes). However, the number of long awakenings (5 minutes or longer) and wake after sleep onset containing only long awakenings was significantly lower for patients with OSA (median: 2 awakenings and 25.5 minutes) compared to patients with COMISA (median: 3 awakenings, P < .01 and 43.3 minutes, P < .001) or with insomnia (median: 3 awakenings, P < .01 and 56.0 minutes, P < .001). Total sleep time was significantly longer and sleep efficiency was significantly higher for the OSA group (median: 418.5 minutes and 84.4%) compared to both the COMISA (median: 391.5 minutes, P < .001 and 77.3%, P < .001) and the insomnia (median: 381.5 minutes, P < .001 and 78.2%, P < .001) groups. The number of sleep-stage transitions during the night for patients with COMISA (median: 194.0) was lower compared to that for patients with OSA (median: 218.0, P < .01) and higher compared to that for patients with insomnia (median: 156.0, P < .001). Other sleep architectural parameters were not discriminative between the groups.

CONCLUSIONS: Patients with COMISA show specific characteristics of insomnia, including prolonged awakenings. This variable is distinctive in comparison to patients with OSA. The combination of prolonged awakenings and the presence of sleep-disordered breathing leads to increased sleep disturbance compared to patients having only 1 of the sleep disorders.


Originele taal-2Engels
Pagina's (van-tot)1051-1059
Aantal pagina's9
TijdschriftJournal of Clinical Sleep Medicine
Volume19
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 1 jun. 2023

Financiering

All authors have seen and approved the manuscript. This work was performed within the IMPULS framework of the Eindhoven MedTech Innovation Center (e/MTIC, incorporating Eindhoven University of Technology, Philips Research, and Sleep Medicine Center Kempenhaeghe), including a PPS supplement from the Dutch Ministry of Economic Affairs and Climate Policy. Additional funding was provided by STW/IWT in the context of the OSA+ project (no. 14619). At the time of writing, P.F. and L.W.A.H. were employed and/or affiliated with Royal Philips, a commercial company and manufacturer of consumer and medical electronic devices, commercializing products in the area of sleep diagnostics and sleep therapy. Philips had no role in the study design, decision to publish, or preparation of the manuscript. J.A. received financial support from Philips and SomnoMed for research and participated in advisory boards for Jazz Pharmaceuticals and Bioprojet, all unrelated to the present work. S.O. received an unrestricted research grant from UCB Pharma and participated in advisory boards for UCB Pharma, Jazz Pharmaceuticals, Takeda, and Bioprojet, all paid to the institution and all unrelated to the present work. The other authors report no conflicts of interest.

FinanciersFinanciernummer
STW

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