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Sleep and cognitive outcomes in multiple sclerosis; a systematic review
Behnam Golabi1, Hadis Razmaray1, Sepideh Seyedi-Sahebari1
1Student Research Committee, Tabriz University of Medical Sciences, Golgasht Street, Tabriz, East Azerbaijan, 5166/15731, Iran.
BMC Psychiatry
|September 28, 2024
Summary
Sleep quality impacts cognitive function in multiple sclerosis (MS). Objective sleep measures show a link, but self-reported sleep quality is not significantly associated with processing speed or working memory in MS patients.
Area of Science:
- Neurology
- Sleep Medicine
- Cognitive Science
Background:
- Multiple sclerosis (MS) is a central nervous system disease often accompanied by sleep disorders and cognitive dysfunction.
- Understanding the interplay between sleep and cognition is crucial for managing MS.
- This study investigates the relationship between sleep conditions and cognitive outcomes in individuals with MS.
Purpose of the Study:
- To scrutinize the relationship between cognitive outcomes and sleep conditions in multiple sclerosis (MS).
- To synthesize current evidence on how sleep affects cognitive function in MS patients.
Main Methods:
- A systematic review adhering to Joanna Briggs Institute (JBI) and PRISMA guidelines.
- Searched major databases (PubMed, Scopus, Embase, Web of Science) for original studies.
- Assessed risk of bias using JBI critical appraisal tools.
Main Results:
- 35 studies involving 5321 participants were included.
- Common sleep assessments included Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and polysomnography.
- Cognitive tests comprised PASAT, CVLT, SDMT, and BVMT.
- A link between objective sleep measures and cognitive abilities was suggested, but self-reported sleep quality showed no substantial association with processing speed or working memory.
Conclusions:
- Sleep appears to be an independent factor associated with cognitive outcomes in MS.
- Findings suggest caution due to limitations, including a lack of well-designed prospective studies.
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