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Sleep structure in patients with COMISA compared to OSA and insomnia
Bernice M Wulterkens1,2, Lieke W A Hermans2, Pedro Fonseca1,2
1Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
Summary
Comorbid insomnia and sleep apnea (COMISA) patients exhibit prolonged awakenings, distinguishing them from obstructive sleep apnea (OSA) patients. This sleep disturbance is more severe in COMISA than in isolated OSA or insomnia.
Area of Science:
- Sleep Medicine
- Pulmonology
- Neurology
Background:
- Obstructive sleep apnea (OSA) and insomnia frequently coexist, complicating diagnosis and treatment.
- Understanding sleep structure differences is crucial for managing comorbid insomnia and sleep apnea (COMISA).
Purpose of the Study:
- To investigate sleep structure variations among patients with OSA, insomnia, and COMISA.
- To identify distinct sleep characteristics for improving COMISA diagnosis.
Main Methods:
- Polysomnography data from 326 patients (199 OSA, 47 insomnia, 80 COMISA) were analyzed.
- Sleep structure statistics, including awakenings and sleep efficiency, were compared between the three groups.
Main Results:
- COMISA patients had significantly longer wake after sleep onset and more long awakenings compared to OSA patients.
- OSA patients exhibited longer total sleep time and higher sleep efficiency than both COMISA and insomnia groups.
- COMISA patients showed a different number of sleep-stage transitions compared to OSA and insomnia patients.
Conclusions:
- Patients with COMISA display prolonged awakenings, a characteristic differentiating them from OSA patients.
- The combination of prolonged awakenings and sleep-disordered breathing in COMISA leads to greater sleep disturbance.
- Identifying specific sleep architecture features can aid in diagnosing and managing COMISA.
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