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Multimodal evoked potentials in multiple sclerosis: a contribution to diagnosis and classification.
V Cosi1, A Citterio, G Battelli
1Istituto di Neurologia C. Mondino, Università di Pavia.
Italian Journal of Neurological Sciences
|June 1, 1987
Summary
Multimodal evoked potentials and cerebrospinal fluid (CSF) tests aid in diagnosing multiple sclerosis (MS) by detecting silent lesions. Evoked potentials reclassified 37.8% of patients, while CSF analysis reclassified 53.4%.
Area of Science:
- Neurology
- Neuroimmunology
- Diagnostic Imaging
Background:
- Multiple sclerosis (MS) diagnosis relies on clinical and imaging evidence.
- Subclinical central nervous system (CNS) lesions are common in MS.
- Early and accurate diagnosis is crucial for effective management.
Purpose of the Study:
- To evaluate the diagnostic utility of multimodal evoked potentials (EPs) and cerebrospinal fluid (CSF) analysis in multiple sclerosis.
- To assess the ability of these methods to detect subclinical lesions and reclassify patients.
- To compare the effectiveness of EPs and CSF analysis in improving MS classification.
Main Methods:
- VEP, BAEP, SEP-median, and SEP-tibial examinations were performed.
- CSF analysis, specifically oligoclonal bands (OB+), was conducted.
- 189 MS patients were studied, categorized by McDonald and Halliday criteria.
Main Results:
- Evoked potentials identified clinically silent CNS lesions in a significant proportion of MS patients.
- EPs enabled reclassification of 14 out of 37 (37.8%) potentially reclassifiable subjects.
- CSF analysis (OB+) reclassified 31 out of 58 (53.4%) reclassifiable cases, demonstrating higher reclassification rates.
Conclusions:
- Multimodal evoked potentials are valuable for detecting subclinical lesions in MS.
- CSF analysis (OB+) offers a higher reclassification rate compared to EPs.
- Both methods are complementary and useful in the diagnosis and classification of multiple sclerosis.