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pre-excitation |
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pre-excitation premature excitation of a portion of the ventricle caused by stimuli passing along one of the auxiliary pathways of cardiac stimulation that are not subject to the same physiological delays as the A-V node. Characterized electrocardiographically by a short P-R interval and a wide QRS interval. See also accessory tract atrioventricular conduction, wolff-parkinson-white syndrome, lown-ganong-levine syndrome. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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