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Temporal evolution of remission following multiple sclerosis relapse and predictors of outcome

Hirst, Claire Louise, Ingram, Gillian, Pickersgill, Trevor P. and Robertson, Neil ORCID: 2012. Temporal evolution of remission following multiple sclerosis relapse and predictors of outcome. Multiple Sclerosis Journal 18 (8) , pp. 1152-1158. 10.1177/1352458511433919

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Background: Relapse is a characteristic clinical feature of multiple sclerosis (MS) and is commonly employed as a measure of efficacy following therapeutic intervention. However, less is known about the temporal evolution of subsequent disability or factors predicting recovery. Objectives: The objective of this study was to assess the pattern of recovery following relapse and identify factors which predict recovery and residual disability following relapse. Methods: A total of 226 relapses were studied prospectively in a cohort of 144 patients with standardised clinical assessments of physical disability including Expanded Disability Status Scale (EDSS), 10-m timed walk, 9-hole peg test and Multiple Sclerosis Impact Scale (MSIS-29) at 0, 2, 6 and 12 months. A total of 82 patients completed 12 months of follow up without further relapse. Results: Thirty per cent of relapses were severe (change in EDSS >2.0) of which 11% failed to recover. All measures showed significant improvement at 2 months but additional improvement was also observed in 9-hole peg test and MSIS-29 up to 12 months following initial assessment. Mean time to second relapse was 382 days. The only predictor of relapse severity in the model tested was younger age; however, increasing age and initial relapse severity were also predictors of poor outcome. Conclusions: This study shows that the majority of improvement in physical disability following relapse occurs by 2 months but that more subtle recovery can take place over 12 months in a small sub-group of patients. These data will aid in patient counselling and will also inform the timing of therapeutic intervention and physical support.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: R Medicine > R Medicine (General)
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: disability, multiple sclerosis, prognosis, relapse
Publisher: Sage
ISSN: 1352-4585
Last Modified: 24 Oct 2022 09:57

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