期刊
MULTIPLE SCLEROSIS JOURNAL
卷 16, 期 5, 页码 581-587出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1352458510362819
关键词
cognition; disability; information processing speed; memory; multiple sclerosis; SDMT
资金
- Association pour la Recherche contre la Sclerose en Plaques, ARSEP, France
- Schering France SA
Cognition is frequently impaired in the early stages of multiple sclerosis (MS). The predictive value of cognitive impairment on disability is unknown. The objective of this study was to correlate cognitive impairment and the progression of disability over 7 years. Forty-five patients, recruited after MS diagnosis, were followed for 7 years by yearly Expanded Disability Status Scale (EDSS) and Multiple Sclerosis Functional Composite (MSFC) evaluations and were classified as cognitively impaired (CI) or unimpaired (CU) according to neuropsychological testing at baseline. At baseline, 47.8% of patients were CI, with deficits in mainly memory and information processing speed (IPS). The baseline EDSS correlated significantly with one IPS test. The EDSS, but not the MSFC, deteriorated significantly over the 7 years in the whole group and the CI group, but not the CU group. A multivariate analysis showed correlations between the EDSS change over 5 and 7 years and two baseline tests evaluating IPS and verbal memory. The deterioration of the EDSS after 7 years was significantly correlated with verbal memory testing at baseline after adjustment for age and baseline EDSS. In conclusion, in this sample of MS patients early in the disease, the baseline IPS and verbal memory impairments predict the EDSS score 5 and 7 years later.
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