| Prediction of long-term disability in multiple sclerosis. | |
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MedLine Citation:
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PMID: 21868486 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background: Little is known about the predictive value of neurophysiological measures for the long-term course of multiple sclerosis (MS). Objective: To prospectively investigate whether combined visual (VEP) and motor evoked potentials (MEP) allow prediction of disability over 14 years. Methods: A total of 30 patients with relapsing-remitting and secondary progressive MS were prospectively investigated with VEPs, MEPs and the Expanded Disability Status Scale (EDSS) at entry (T0) and after 6, 12 and 24 months, and with cranial MRI scans at entry (T2-weighted and gadolinium-enhanced T1-weighted images). EDSS was again assessed at year 14 (T4). The association between evoked potential (EP), magnetic resonance (MR) data and EDSS was measured using Spearman's rank correlation. Multivariable linear regression was performed to predict EDSS(T4) as a function of z-transformed EP-latencies(T0). The model was validated using a jack-knife procedure and the potential for improving it by inclusion of additional baseline variables was examined. Results: EDSS values(T4) correlated with the sum of z-transformed EP-latencies(T0) (rho = 0.68, p < 0.0001), but not with MR-parameters(T0). EDSS(T4) as predicted by the formula EDSS(T4) = 4.194 + 0.088 * z-score P100(T0) + 0.071 * z-score CMCT(UE, T0) correlated with the observed values (rho = 0.69, p < 0.0001). Conclusion: Combined EPs allow prediction of long-term disability in small groups of patients with MS. This may have implications for the choice of monitoring methods in clinical trials and for daily practice decisions. |
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Authors:
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R Schlaeger; M D'Souza; C Schindler; L Grize; S Dellas; Ew Radue; L Kappos; P Fuhr |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-25 |
Journal Detail:
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Title: Multiple sclerosis (Houndmills, Basingstoke, England) Volume: - ISSN: 1477-0970 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9509185 Medline TA: Mult Scler Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Neurology, University Hospital Basel, Basel, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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