| 释义 |
preexcitation preexcitation [pre-ek″si-ta´shun] abnormal premature activation of part of the ventricular myocardium, signifying conduction of some of the activating impulses by routes outside the normal ones.pre·ex·ci·ta·tion (prē'ek-sī-tā'shŭn), Premature activation of part of the ventricular myocardium by an impulse that travels by an anomalous path and so avoids physiologic delay in the atrioventricular junction; an intrinsic part of the Wolff-Parkinson-White syndrome.pre·ex·ci·ta·tion (prē'ek-sī-tā'shŭn) Premature activation of part of the ventricular myocardium by an impulse that travels by an anomalous path and so avoids physiologic delay in the atrioventricular junction; an intrinsic part of the Wolff-Parkinson-White syndrome. |