Nerve conduction studies

Basic concepts

Jinny Orathai Tavee*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Nerve conduction studies (NCSs) are an essential tool in the evaluation of the peripheral nervous system. The sensory nerve action potential (SNAP) provides information on the sensory nerve axon and its pathway from the distal receptors in the skin to the dorsal root ganglia, while the compound muscle action potential (CMAP) is an assessment of the motor nerve fibers from their origins in the anterior horn cell to their termination along muscle fibers. Various parameters of the SNAP and CMAP waveforms are used to determine the number of functioning nerve fibers and the speed of conduction. Similarly, specific electrodiagnostic patterns involving SNAP and CMAP amplitudes, latencies and other measurements can help discern the underlying nerve pathophysiology as either axon loss or demyelinating in nature. Numerous technical and environmental factors can affect the NCS and should be recognized and corrected if possible. Finally, while basic NCSs are a noninvasive and low-risk procedure, safety issues for patients with implanted electrical devices should be considered.

Original languageEnglish (US)
Title of host publicationHandbook of Clinical Neurology
PublisherElsevier B.V.
Pages217-224
Number of pages8
DOIs
StatePublished - Jan 1 2019

Publication series

NameHandbook of Clinical Neurology
Volume160
ISSN (Print)0072-9752
ISSN (Electronic)2212-4152

Fingerprint

Neural Conduction
Action Potentials
Muscles
Nerve Fibers
Axons
Anterior Horn Cells
Peripheral Nervous System
Spinal Ganglia
Patient Safety
Equipment and Supplies
Skin

Keywords

  • Axon loss
  • Conduction block
  • Demyelination
  • Motor nerve action potential
  • Nerve conduction studies
  • Sensory nerve action potential

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Cite this

Tavee, J. O. (2019). Nerve conduction studies: Basic concepts. In Handbook of Clinical Neurology (pp. 217-224). (Handbook of Clinical Neurology; Vol. 160). Elsevier B.V.. https://doi.org/10.1016/B978-0-444-64032-1.00014-X
Tavee, Jinny Orathai. / Nerve conduction studies : Basic concepts. Handbook of Clinical Neurology. Elsevier B.V., 2019. pp. 217-224 (Handbook of Clinical Neurology).
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Tavee, JO 2019, Nerve conduction studies: Basic concepts. in Handbook of Clinical Neurology. Handbook of Clinical Neurology, vol. 160, Elsevier B.V., pp. 217-224. https://doi.org/10.1016/B978-0-444-64032-1.00014-X

Nerve conduction studies : Basic concepts. / Tavee, Jinny Orathai.

Handbook of Clinical Neurology. Elsevier B.V., 2019. p. 217-224 (Handbook of Clinical Neurology; Vol. 160).

Research output: Chapter in Book/Report/Conference proceedingChapter

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Tavee JO. Nerve conduction studies: Basic concepts. In Handbook of Clinical Neurology. Elsevier B.V. 2019. p. 217-224. (Handbook of Clinical Neurology). https://doi.org/10.1016/B978-0-444-64032-1.00014-X