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Autonomic Function Testing 

Autonomic Function Testing
Autonomic Function Testing

K. L. Venkatachalam

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date: 22 October 2018

Syncope may be defined as a transient loss of consciousness due to a temporary limitation in cerebral blood flow. Causes of syncope include the following: low systemic blood pressure, reduced cerebral blood flow, and miscellaneous causes of cerebral dysfunction (metabolic, endocrine, and electrolyte abnormalities). The autonomic nervous system may have a role in syncopal and near-syncopal episodes. The focus of this chapter is autonomic function assessment related to cardiology and, specifically, to the evaluation of a patient referred for syncope.

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