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Evoked Potentials 

Evoked Potentials
Chapter:
Evoked Potentials
Author(s):

James C. Watson

DOI:
10.1093/med/9780190214883.003.0034
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date: 23 October 2019

Evoked potentials provide a noninvasive, sensitive, and quantitative way to assess the functional integrity of the somatosensory, auditory, and visual pathways. The basic principle of evoked potentials is to apply a stimulus (sensory, auditory, or visual) in a controlled manner to create a volley of depolarization and repolarization. The role of somatosensory and brainstem auditory evoked potentials in the outpatient setting has declined in the past decades with the improved quality and availability of neuroimaging; however, their use has had a resurgence in electrophysiologic monitoring of surgical cases of the spine and posterior fossa, for which they are now a part of the standard of care.

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