Document Detail

Acute disseminated encephalomyelitis that meets modified McDonald criteria for dissemination in space is associated with a high probability of conversion to multiple sclerosis in Taiwanese patients.
MedLine Citation:
PMID:  20561038     Owner:  NLM     Status:  In-Data-Review    
Background:  Patients with acute disseminated encephalomyelitis (ADEM) may relapse and some may ultimately convert to multiple sclerosis (MS); however, no criteria that can predict MS conversion are available to date. Our aim was to describe the clinical and magnetic resonance imaging (MRI) features of patients with an initial ADEM attack and evaluate which MRI criteria can predict conversion to MS. Methods:  We retrospectively reviewed the records of 36 patients diagnosed with ADEM. We determined clinical signs/symptoms, examined the cerebrospinal fluid (CSF), and performed brain MRI scans and compared the findings between patients who did and did not convert to MS. Results:  Clinical signs/symptoms, and CSF analysis show no significant difference between the two groups. The rate of conversion to MS from ADEM in Taiwanese patients is low (11%) after a mean follow-up period of 28.36 months. Modified McDonald criteria were fulfilled in 19/36 patients: 21% (4/19) of those patients developed MS according to Poser criteria subsequently. Of the other patients (17/36) who did not fulfill these criteria, none converted to MS. (log rank test; P = 0.027). Conclusions:  It is difficult to predict from initial clinical presentations to address which patients with ADEM will convert to MS. Patients with ADEM whose brain MRI findings met the modified McDonald criteria may have clinically isolated syndrome because they have a significantly higher probability of conversion to MS. In contrast, patients whose brain MRI findings did not meeting these criteria may be considered as having classic ADEM because they have a lower probability of conversion to MS.
M F Liao; C C Huang; R K Lyu; C M Chen; H S Chang; C-C Chu; W C Hsu; Y R Wu; H C Kuo; M Y Cheng; P C Hung; M L Chou; K L Lin; M Y Hsieh; L S Ro
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of neurology : the official journal of the European Federation of Neurological Societies     Volume:  18     ISSN:  1468-1331     ISO Abbreviation:  Eur. J. Neurol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9506311     Medline TA:  Eur J Neurol     Country:  England    
Other Details:
Languages:  eng     Pagination:  252-9     Citation Subset:  IM    
Copyright Information:
© 2010 The Author(s). European Journal of Neurology © 2010 EFNS.
Department of Neurology Division of Pediatric Neurology, Department of Pediatrics, Chang Gung Memorial Hospital at Linkou and College of Medicine, Chang-Gung University, Taipei, Taiwan.
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