ArticleNeurology international2025
A Pilot Study: The Effect of CPAP Intervention on Sleep Architecture and Cognition in Alzheimer's Disease Patients with Obstructive Sleep Apnea.
Article in Neurology international, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Comparison of Sleep Architecture in Individuals Aged 65 to 80 Years With and Without Mild Cognitive Impairment Using Multi-Channel Sleep Monitoring.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- Sleep Stage Classification During CPAP Therapy from CPAP-Airflow and Wearable Fingertip Signals.Sensors (Basel, Switzerland) · 2026Article
- Sleep-Dependent Clearance of Brain Metabolites via the Glymphatic System: Implications for Alzheimer's Pathophysiology.Brain and behavior · 2026Review
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Authors and funding
12 authors.
Funding
Abstract
backgroundObstructive sleep apnea (OSA) is highly prevalent in the early stages of Alzheimer's disease (AD), and its hallmark, sleep fragmentation, may accelerate cognitive decline. Continuous positive airway pressure (CPAP) improves OSA-related hypoxia during slow-wave sleep, but its cognitive benefits in AD remain unclear.
methodsWe performed a 12-month sub-analysis of a prospective, longitudinal pilot study that enrolled 21 adults (median age = 77 yr; 71% women) with Mild Cognitive Impairment (MCI) with AD confirmed biomarkers and polysomnography-diagnosed OSA. All participants underwent baseline overnight polysomnography (PSG) and neuropsychological testing (Clinical Dementia Rating (CDR), Mini-Mental State Examination (MMSE), Repeatable Battery for the Assessment of Neuropsychological Status (RBANS)) that were repeated after 12 months. Twelve participants were CPAP-compliant (moderate/severe OSA) and nine were non-users (mild OSA/intolerance). Cognitive change scores (Δ = 12 months -baseline) were compared with Generalized Linear Models (GLM) adjusted for baseline cognition and Apnea-Hypopnea Index (AHI); associations between baseline sleep parameters and cognitive trajectories were examined. And the association of sleep variables with the use of CPAP was also evaluated.
resultsCompared with non-users, CPAP users showed significantly slower global decline (Δ MMSE:
conclusionsTwelve months of CPAP use was associated with attenuated cognitive decline and domain-specific gains in AD-related MCI with OSA. Sleep architecture and body position during sleep predicted cognitive outcomes, underscoring the therapeutic relevance of optimizing breathing and sleep quality. Larger, longer-term trials are warranted to confirm CPAP's disease-modifying potential and to clarify the mechanistic role of sleep in AD progression.
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