Document Detail

A distinctive pattern of cortical excitability in patients with the syndrome of dystonia and cerebellar ataxia.
MedLine Citation:
PMID:  21419696     Owner:  NLM     Status:  Publisher    
OBJECTIVE: The syndrome of dystonia and cerebellar ataxia (DYTCA) is a recently described condition where cervical dystonia and mild cerebellar ataxia are the major clinical features. Here we attempted to explore the pathophysiology of this condition by comparing measurements of cortical excitability between patients with DYTCA, typical primary dystonia and healthy controls. METHODS: Motor threshold, active MEP recruitment and CSP duration were measured and the excitability of the intracortical inhibitory and excitatory circuits was assessed at rest using a paired pulse protocol. RESULTS: We identified a distinctive pattern of cortical excitability in DYTCA patients different from that found in primary dystonia, namely hyperexcitable short-interval intracortical inhibition. CONCLUSION: DYTCA patients have a noticeably dissimilar excitability profile from patients with primary dystonia. SIGNIFICANCE: A tendency for increased SICI has been previously described in cerebellar syndromes and the altered excitability profile seen in these patients is therefore possibly a consequence of the cerebellar dysfunction in DYTCA. A direct link between reduced intracortical inhibition and dystonia has recently been questioned and our results additionally suggest that reduced motor cortex inhibition is not a prerequisite for dystonia to occur.
Penelope Talelli; Britt S Hoffland; Susanne A Schneider; Mark J Edwards; Kailash P Bhatia; Bart P C van de Warrenburg; John C Rothwell
Related Documents :
5288226 - Lymphocyte transformation in patients with acute lymphoblastic leukaemia.
6603936 - Thymostimulin therapy in melanoma patients: correlation of immunologic effects with cli...
1497556 - Current concepts on monoclonal gammopathies.
2468436 - A comparative study of in vitro proliferative responses to mitogens and immunoglobulin ...
9499596 - The prevalence of enterocytozoon bieneusi in acquired immunodeficiency syndrome (aids) ...
19293426 - The presence of jak2v617f mutation in the liver endothelial cells of patients with budd...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-16
Journal Detail:
Title:  Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology     Volume:  -     ISSN:  1872-8952     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883319     Medline TA:  Clin Neurophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 International Federation of Clinical Neurophysiology. All rights reserved.
Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, UCL, London WC1N 3BG, UK.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Clinicians satisfaction with CPOE ease of use and effect on clinicians' workflow, efficiency and med...
Next Document:  Electrophysiological and immunological study in myasthenia gravis: Diagnostic sensitivity and correl...