Cognitive impairment and structural brain changes in patients with clinically isolated syndrome at high risk for multiple sclerosis
Jazyk angličtina Země Německo Médium print-electronic
Typ dokumentu časopisecké články
PubMed
28028623
DOI
10.1007/s00415-016-8368-9
PII: 10.1007/s00415-016-8368-9
Knihovny.cz E-zdroje
- Klíčová slova
- Clinically isolated syndrome, Cognition, MRI, Multiple sclerosis, Neuropsychology, Voxel-based morphometry,
- MeSH
- atrofie MeSH
- demyelinizační nemoci komplikace diagnostické zobrazování psychologie MeSH
- dospělí MeSH
- kognitivní dysfunkce diagnostické zobrazování etiologie MeSH
- lidé MeSH
- magnetická rezonanční tomografie MeSH
- mozek diagnostické zobrazování MeSH
- neuropsychologické testy MeSH
- počítačové zpracování obrazu MeSH
- posuzování pracovní neschopnosti MeSH
- prognóza MeSH
- progrese nemoci MeSH
- rizikové faktory MeSH
- velikost orgánu MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Patients with clinically isolated syndrome (CIS), unlike those with multiple sclerosis (MS), have a selective cognitive impairment which is not consistently related to structural brain changes. Our objective was to characterize a profile of cognitive impairment and its association with structural brain changes in patients with CIS who are at high risk of developing MS. Patients with CIS at high risk for MS on interferon-beta (n = 51) and age-, gender-, and education-matched controls (n = 44) underwent comprehensive neuropsychological testing and MRI brain scan with voxel-based morphometry. The CIS group had lower cognitive performance in verbal and nonverbal memory, information processing speed/attention/working memory, and executive and visuo-spatial functions compared to controls (p ≤ 0.040). Lower cognitive performance was present in 18-37 and 14-26% of patients with CIS at high risk for MS depending on the criteria used. Brain volume was reduced predominantly in fronto-temporal regions and the thalamus in the CIS group (p ≤ 0.019). Cognitive performance was not associated with structural brain changes except for the association between worse visuo-spatial performance and lower white matter volume in the CIS group (β = 0.29; p = 0.042). Our results indicated that patients with CIS at high risk for MS may have a pattern of lower cognitive performance and regional brain atrophy similar to that found in patients with MS. Lower cognitive performance may be present in up to one-third of patients with CIS at high risk for MS, but, unlike patients with MS, variability in their cognitive performance may lead to a lack of consistent associations with structural brain changes.
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