vagal attack

Medical Dictionary

vagal attack n.
A paroxysmal condition marked by slow pulse, a fall in blood pressure, and sometimes by convulsions, thought to be the result of sudden stimulation of the vagus nerve mediated through receptors located in the carotid sinus, the aortic arch, or the heart. Also called vasovagal attack, vasovagal syncope.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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