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atrioventricular extrasystole

atrioventricular extrasystole in Medicine

atrioventricular extrasystole n.
A premature contraction of the heart in which the stimulus arises from either the A-V node or A-V bundle. Also called A-V extrasystole.

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