Abstract
Background
Oligoclonal IgM (OCMB) and IgG (OCGB) bands were found to be associated with poor multiple sclerosis (MS) prognosis.
Objective
We aimed to evaluate the prognostic value of OCMB/OCGB in a cohort of Sardinian MS patients.
Materials and methods
We recruited patients from the University of Cagliari. They underwent lumbar puncture for diagnostic purposes. Demographic and the following clinical data were recorded: clinical course; time to reach EDSS 3 and 6; EDSS at last follow-up; and MS treatments. The influence of gender, clinical course, age at onset, treatments, and OCGB/OCMB on reaching EDSS 3 was analysed using Cox regression. Kaplan–Meier curves were used to study the time to reach EDSS 3 considering OCMB/OCGB and therapies.
Results
The enrolled number of subjects was 503. The variables influencing the achievement of EDSS 3.0 were: male gender (p = 0.005); progressive course (p = 0.001); age at onset (p < 0.001); and disease-modifying drugs (p < 0.001). The OCGB/OCMB status was not significant. Kaplan–Meier analysis showed no difference in time to reach EDSS 3 for patients with and without OCGB or OCMB in both treated and non-treated groups.
Conclusion
Our study did not confirm the poor prognostic value of OCMB/OCGB. These results may be influenced by the peculiar genetic background associated with the risk of MS in Sardinians.
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Frau, J., Villar, L.M., Sardu, C. et al. Intrathecal oligoclonal bands synthesis in multiple sclerosis: is it always a prognostic factor?. J Neurol 265, 424–430 (2018). https://doi.org/10.1007/s00415-017-8716-4
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DOI: https://doi.org/10.1007/s00415-017-8716-4