Condition: OSA - Obstructive Sleep Apnea · Cognitive Functions · Sponsor: Comenius University
Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder and has been increasingly recognized as a contributor to cognitive decline and a potential risk factor for neurodegeneration. Previous studies have identified several associated comorbidities, including vascular dysfunction, metabolic alterations, and neuroinflammatory changes. However, the impact and underlying interplay of these pathophysiological mechanisms remain poorly understood due to the lack of integrated, multidimensional assessment. This prospective, observational, longitudinal cohort study aims to investigate cognition and OSA-related physiological and pathophysiological processes in 100 adults newly diagnosed with OSA, who have no history of chronic diseases (except for overweight and obesity) and are not receiving chronic medication. A subgroup of patients with moderate to severe OSA indicated for positive airway pressure (PAP) therapy will be followed to evaluate its long-term effects on cognitive function and related mechanisms. All participants will undergo polysomnography (PSG), comprehensive neuropsychological assessment, brain MRI with volumetric analysis, biomarker profiling from blood and saliva, and evaluation of endothelial function, baroreflex sensitivity, and gut microbiome composition at baseline and after 12 months. PAP adherence will be continuously monitored. The primary objective of this study is to characterize the profile of cognitive impairment associated with O…
This description comes directly from the study's public registry record.
Branislav Kollar, prof. MD PhD. MPH. · +421 948 334 417 · b.kollar.md@gmail.com
Stela Biathova, MA · +421 905 218 668 · sbiathova@gmail.com
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| 1st Department of Neurology, Faculty of Medicine, Comenius University and University Hospital Bratislava, Slovakia | Bratislava, Slovakia | Recruiting |
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Source record: clinicaltrials.gov/study/NCT07364318