E-ISSN 1309-4866
Research Article
Prediction of Conversion from Clinically Isolated Syndrome to Multiple Sclerosis According to Baseline Characteristics: A Prospective Study
1 Department of Neurology, Samsun Training and Research Hospital, Samsun, Turkey  
2 Department of Neurology, Dokuz Eylül University School of Medicine, İzmir, Turkey  
Arch Neuropsychiatry ; : -
DOI: 10.5152/npa.2017.12667
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Key Words: Clinically isolated syndrome, multiple sclerosis, prognosis, conversion
Abstract

Introduction:  Clinically isolated syndrome (CIS) is a clinical state that proceeds with inflammation and demyelination suggestive of multiple sclerosis (MS) in the central nervous system. The purpose of this study was to determine the predictor factors in conversion from CIS to MS on the basis of clinical, magnetic resonance imaging (MRI) and cerebrospinal fluid (CSF) findings, in a prospective cohort.

 

Methods: 41 CIS patients were included in this study and followed up for at least two years.

 

Results: Polysymptomatic or sensorial involvement, good prognostic factors and complete response to pulse therapy were found to be of prognostic value in conversion to MS. A greater presence of oligoclonal bands in CSF was identified in the converted group (92.8%). In terms of localization, presence of callosal lesion (71.4%), periventricular lesion (97.1%), Gd-enhanced lesion (48.6%), black hole (54.2%) and brainstem lesion (57.1%) was statistically significant in terms of conversion to MS.

 

Conclusion: A carefully performed neurological assessment of symptoms and signs, and evaluation of lesions on MRI combined with CSF findings are important for identifying the risk of conversion to MS. This information may be useful when considering treatment in CIS patients without waiting for conversion. 

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