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| Research article summary (published 27 Feb 2002): |
Comparison of the antidromic sensory nerve action potentials obtained from all fingers on the same hand.
Full Abstract
Supramaximal compound sensory nerve action potentials (CSNAPs) were recorded antidromically from five fingers of the same hand to electrical stimulation of the median, ulnar, and radial nerves in 17 normal subjects. The mean amplitudes of the median CSNAPs from the thumb, index, and middle fingers were similar in values. There was minimal radial sensory contribution to the thumb, with the mean radial CSNAP amplitude about one-fourth the size of the median CSNAPs. The mean median and ulnar CSNAP amplitudes from the ring finger were approximately half, and the mean ulnar CSNAP amplitude from the little finger was approximately 85%, of the median CSNAP amplitudes from the other fingers. The median, ulnar, and radial sensory nerve conduction velocities were close in values. There appears to be less variability in the population normative data when the size of the CSNAPs is expressed in terms of amplitude ratio rather than in absolute amplitude value.
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Author information
Author/s: Wee, A S (AS);
Affiliation: Electromyography Laboratory, Department of Neurology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
Journal and publication information
Publication Type: Comparative Study; Journal Article
Journal: Electromyography and clinical neurophysiology (Electromyogr Clin Neurophysiol), published in Belgium. (Language: eng)
Reference: 2002-Mar; vol 42 (issue 2) : pp 125-8
Dates: Created 2002/04/09; Completed 2002/09/20; Revised 2006/11/15;
PMID: 11938595, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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