Document Detail

Determining neurapraxia in carpal tunnel syndrome.
MedLine Citation:
PMID:  3377889     Owner:  NLM     Status:  MEDLINE    
In the evaluation of carpal tunnel syndrome by nerve conduction testing it is desirable to produce prognostic as well as diagnostic information. The finding of conduction block, or neurapraxia, is regarded as evidence that treatment can result in prompt recovery of nerve function. A technique is presented for stimulating the motor branch of the median nerve in the palm in order to detect the degree of neurapraxia due to entrapment in the carpus. In 23 normal subjects the response after palmar stimulation compared to a wrist stimulation site had a mean increase in amplitude of 0.56 mV. Persons affected with carpal tunnel syndrome had a mean amplitude increase of 2.2 mV demonstrating partial conduction block. The difference between these two values is statistically significant (P = 0.001). The routine use of this method is recommended both for more accurate diagnosis and for evaluation of the degree of neurapraxia.
W S Pease; M L Cunningham; W E Walsh; E W Johnson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of physical medicine & rehabilitation / Association of Academic Physiatrists     Volume:  67     ISSN:  0894-9115     ISO Abbreviation:  Am J Phys Med Rehabil     Publication Date:  1988 Jun 
Date Detail:
Created Date:  1988-07-28     Completed Date:  1988-07-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8803677     Medline TA:  Am J Phys Med Rehabil     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  117-9     Citation Subset:  AIM; IM    
Department of Physical Medicine, Ohio State University, Columbus 43210-1290.
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MeSH Terms
Action Potentials
Axons / physiology
Carpal Tunnel Syndrome / physiopathology*
Median Nerve / physiopathology
Middle Aged
Neural Conduction*

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

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