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The contribution of trigemino-cervical reflexes in distinguishing progressive supranuclear palsy from multiple system atrophy.
MedLine Citation:
PMID:  21396886     Owner:  NLM     Status:  Publisher    
OBJECTIVE: Trigemino-cervical reflexes (TCRs) are electromyographic responses induced by electrical stimulation of the trigeminal nerve and recorded in the neck muscles. Trigemino-cervical reflexes are detectable in Parkinson's disease, whereas they are absent in progressive supranuclear palsy (PSP), an atypical parkinsonism associated with brainstem degeneration. To date, no study has investigated TCRs in multiple system atrophy (MSA), another atypical parkinsonism associated with brainstem involvement, which resembles PSP. METHODS: To understand whether TCRs are helpful in differentiating PSP from MSA, we compared the TCRs recorded in 10 PSP patients with those obtained from 10 patients diagnosed as having probable MSA, parkinsonian type (MSA-P). RESULTS: Trigemino-cervical reflexes were not recorded in any of the PSP patients, while they were clearly detectable in all the MSA-P patients. CONCLUSIONS: Trigemino-cervical reflex recording is a rapid neurophysiological method, which could assist in the differential diagnosis between PSP and MSA-P. SIGNIFICANCE: This study further improves our understanding of the different neuronal functioning of extrapyramidal disorders. TCRs monitoring may be useful to support the diagnosis of atypical parkinsonisms especially when clinical evidence is uncertain.
Mariano Serrao; Roberto Di Fabio; Michelangelo Bartolo; Armando Perrotta; Cristina Tassorelli; Gianluca Coppola; Chiara Davassi; Luca Padua; Giorgio Sandrini; Francesco Pierelli
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-9
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:  2011-3-14     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. Published by Elsevier Ireland Ltd.
Department of Medical and Surgical Science and Biotechnology, "Sapienza" University of Rome ICOT - Polo Pontino, Latina, Italy; Rehabilitation Centre Policlinico Italia, Rome, Italy.
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