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Conduction velocity in the proximal sural nerve. 1979

X T Truong, and F I Russo, and I Vagi, and D V Rippel

Sensory conduction velocity in the proximal portion of the sural nerve differs significantly from that in the distal portion and is less variable. Its determination should improved the value and accuracy of the electroneurographic examination of this nerve. Antidromic conduction velocities in 3 contiguous nerve segments of 10cm each, were determined in 102 sural nerves in normal subjects. The mean velocity in the most distal segment was 33.9 +/- 3.25m/sec. The mean velocities for the middle and most proximal segments were 51.0 +/- 3.8m/sec and 51.6 +/- 3.8m/sec respectively and were not significantly different. There was a positive correlation between conduction velocities and skin temperatures below 84F (28.9C), and no correlation for temperatures above 84F. A sural communicating branch from the common peroneal nerve was demonstrated by electrical stimulation in 9 of 107 cases. The results showed that proximal conduction velocity determination in the sural nerve is a practical procedure.

UI MeSH Term Description Entries
D009431 Neural Conduction The propagation of the NERVE IMPULSE along the nerve away from the site of an excitation stimulus. Nerve Conduction,Conduction, Nerve,Conduction, Neural,Conductions, Nerve,Conductions, Neural,Nerve Conductions,Neural Conductions
D004558 Electric Stimulation Use of electric potential or currents to elicit biological responses. Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical
D004566 Electrodes Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum. Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000200 Action Potentials Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli. Spike Potentials,Nerve Impulses,Action Potential,Impulse, Nerve,Impulses, Nerve,Nerve Impulse,Potential, Action,Potential, Spike,Potentials, Action,Potentials, Spike,Spike Potential
D013127 Spinal Nerves The 31 paired peripheral nerves formed by the union of the dorsal and ventral spinal roots from each spinal cord segment. The spinal nerve plexuses and the spinal roots are also included. Nerve, Spinal,Nerves, Spinal,Spinal Nerve
D013497 Sural Nerve A branch of the tibial nerve which supplies sensory innervation to parts of the lower leg and foot. Nerve, Sural,Nerves, Sural,Sural Nerves

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