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Nerve conduction studies 

Nerve conduction studies
Chapter:
Nerve conduction studies
Author(s):

Jun Kimura

DOI:
10.1093/med/9780199688395.003.0006
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date: 21 October 2020

This chapter examines the principles and practice of nerve conduction studies, which constitute an extension of the clinical history-taking and physical examination, rather than a separate laboratory test. Therefore, in order to take best advantage of the physiological assessment, we need to formulate a reasonable differential diagnosis based on their clinical examination. Nerve conduction studies will help clinicians by confirming the clinical diagnosis, characterizing the neuropathic process by documenting demyelination or axonal degeneration, which dictates the speed and manner of nerve impulse propagation, localizing the site of lesions, differentiating a focal versus diffuse process, and quantitating the abnormalities by the size of the elicited response, which approximately corresponds to the number of functional nerve and muscle fibres. The chapter will appeal to those interested in a broad review of electrodiagnostic medicine and to those wanting a current update on the state-of-the art information of nerve conduction techniques.

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