electrical alternation

e·lec·tri·cal alternation

(ĭ-lĕk′trĭ-kəl)
n.
A varied alternation in the activity of the heart indicative of myocardial disease as measured by an electrocardiograph. Also called electrical alternans.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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