pre-excitation

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.
References in periodicals archive ?
ESMOCARD is indicated for supraventricular tachycardia (except for pre-excitation syndromes) and for the rapid control of the ventricular rate in patients with atrial fibrillation or atrial flutter in perioperative, postoperative, or other circumstances where short-term control of the ventricular rate with a short-acting agent is desirable.
Starting with deep analysis then moving to quick diagnosis, they consider such aspects as how to take an ECG recording, handshakes with "electrical axis," sinus tachycardia, some details of fascicular blocks, and important pre-excitation syndromes.
Ventricular pre-excitation in the general population: a study on the mode of presentation and clinical course.
Persons at intermediate probability of coronary disease without a paced rhythm, ventricular pre-excitation, left bundle branch block, or ST depression greater than 1 mm on resting ECG may be evaluated with treadmill testing in the absence of imaging.
Combined evaluation of bedside clinical variables and the electrocardiogram for the differential diagnosis of paroxysmal atrioventricular reciprocating tachycardias in patients without pre-excitation.
Criteria for intraventricular conduction disturbances and pre-excitation.