Document Detail

Nerve conduction studies and electromyography in Friedreich's ataxia.
MedLine Citation:
PMID:  1000415     Owner:  NLM     Status:  MEDLINE    
Twenty-six of 50 patients were investigated with nerve conduction studies and electromyography using a standard protocol and were compared to the findings in 50 normal control subjects. Almost all cases of typical Friedreich's ataxia had absent sensory action potentials (SAP) in the digital (92%) or sural (96%) nerves. The others had markedly decreased S.A.P's. In these same patients motor conduction velocities were either normal or only slightly decreased. In the second, atypical group of 9 patients, the motor conduction velocities were considerably decreased. Because of the absence of sensory action potentials in Friedreich's ataxia, and that the absence was noted in our very mild cases, it is proposed that this measure be used to facilitate early diagnosis.
J M Peyronnard; L Lapointe; J P Bouchard; A Lamontagne; B Lemieux; A Barbeau
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques     Volume:  3     ISSN:  0317-1671     ISO Abbreviation:  Can J Neurol Sci     Publication Date:  1976 Nov 
Date Detail:
Created Date:  1977-02-16     Completed Date:  1977-02-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0415227     Medline TA:  Can J Neurol Sci     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  313-7     Citation Subset:  IM    
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MeSH Terms
Action Potentials
Child, Preschool
Friedreich Ataxia / physiopathology*
Middle Aged
Muscles / physiopathology*
Neural Conduction*
Peripheral Nerves / physiopathology

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