ventricular escape


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escape

 [es-kāp´]
the act of becoming free.
vagal escape the exhaustion of or adaptation to neural chemical mediators in the regulation of systemic arterial pressure.
ventricular escape extrasystole in which a ventricular pacemaker becomes effective before the sinoatrial pacemaker; it usually occurs with slow sinus rates and often, but not necessarily, with increased vagal tone.

ven·tric·u·lar es·cape

escape with an ectopic ventricular focus as pacemaker.

ven·tric·u·lar es·cape

(ven-trik'yū-lăr es-kāp')
A cardiac arrhythmia in which a ventricular focus usurps the pacemaker function of the sinuatrial node.
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References in periodicals archive ?
Ventricular flutter wave J End of ventricular flutter/fibrillation e Atrial escape beat j Nodal (junctional) escape beat E Ventricular escape beat Paced beat f Fusion of paced and normal beat x Non-conducted P-wave (blocked APB) Q Unclassifiable beat I Isolated QRS-like artifact
* High-grade AV block with slow junctional and ventricular escape rhythms.
The AAMI convention is used to combine the beats into five classes of interest [7]: normal beat, left bundle branch block (LBBB), right bundle branch block (RBBB), and atrial escape and nodal junction escape beats belong to class N category; class V contains premature ventricular contraction (PVC) and ventricular escape beats, class S contains atrial premature (AP), aberrated premature (aAP), nodal junction premature (NP), and supraventricular premature (SP) beats, class F contains only fusion of ventricular and normal (f VN) beats, and class Q which is known as unknown beat contains paced beat (P), fusion of paced and normal (fPN) beats, and unclassified beats.

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