Autonomic Function Testing

K. L. Venkatachalam

in Mayo Clinic Cardiology

Fourth edition

Published on behalf of © Mayo Foundation for Medical Education and Research

Published in print November 2012 | ISBN: 9780199915712
Published online May 2013 | e-ISBN: 9780199322824 | DOI:

Series: Mayo Clinic Scientific Press

Autonomic Function Testing

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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.

Chapter.  1621 words.  Illustrated.

Subjects: Cardiovascular Medicine

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