The onset location of multiple sclerosis predicts the location of subsequent relapses
- 9 December 2008
- journal article
- research article
- Published by BMJ in Journal of Neurology, Neurosurgery & Psychiatry
- Vol. 80 (4), 400-403
- https://doi.org/10.1136/jnnp.2008.157305
Abstract
Background: Demyelinating events in relapsing-remitting multiple sclerosis (RRMS) can involve several locations in the central nervous system. We sought to determine if initial clinical demyelinating event (IDE) location predicts subsequent clinical relapse locations in early RRMS. Methods: We identified all RRMS patients from two large MS clinics who were seen within 1 year of disease onset. Logistic regression was performed with the outcome defined as the second or third exacerbation location and the predictor defined as IDE±second event location. Results: 195 patients with at least two clinical exacerbations were identified. There was an increased odds of a patient’s second relapse occurring in the spinal cord if the IDE was in the spinal cord (odds ratio (OR) = 3.79, 95% CI 2.06 to 7.00, pConclusion: Patients with RRMS have relatively localised clinical relapses. It remains to be determined if genetic or biological processes are responsible for this pattern.Keywords
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