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Effects of obstructive sleep apnea on cognitive function: a comparison between younger and older OSAS patients
1Centre d'étude du sommeil et des rythmes biologiques, Hôpital du Sacré-Coeur de Montréal, 5400 boul. Gouin Ouest, Montréal, Que., Canada H4J 1C5.
Sleep Medicine
|May 22, 2007
Summary
Age does not worsen cognitive deficits in obstructive sleep apnea syndrome (OSAS). While OSAS patients show cognitive issues, older patients did not exhibit significantly greater dysfunction compared to younger patients or controls.
Area of Science:
- Neurology
- Sleep Medicine
- Cognitive Science
Background:
- Obstructive sleep apnea syndrome (OSAS) is associated with cognitive deficits.
- These deficits resemble those seen in normal aging.
- The impact of age on cognitive function in OSAS patients requires further investigation.
Purpose of the Study:
- To assess the effects of age on cognitive functions in patients with OSAS.
- To determine if older OSAS patients exhibit greater cognitive dysfunction than younger OSAS patients and controls.
- To investigate the interaction between age and OSAS on cognitive performance.
Main Methods:
- Comparison of younger and older OSAS patients with age-matched controls (age cutoff 50 years).
- Utilized polysomnography (PSG) and comprehensive neuropsychological evaluations.
- Analyzed data using two-way ANOVAs (Group x Age) and Spearman correlations.
Main Results:
- No significant Group-by-Age interaction was observed for any cognitive variables.
- Main effects of Group (OSAS vs. Control) and Age were significant.
- Attentional deficits correlated with poorer cognitive performance in younger OSAS patients only.
Conclusions:
- Cognitive deficits in OSAS and aging are confirmed.
- Age does not appear to exacerbate the cognitive effects of OSAS.
- Findings align with existing literature on OSAS and aging-related cognitive impairments.
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