preexcitation

preexcitation definition - medical

pre·ex·ci·ta·tion (prēˌĕk-sī-tāˈshən)

noun
Premature activation of part of the ventricular myocardium by an impulse that travels by an anomalous path and so avoids physiological delay in the atrioventricular junction.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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