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.

ventricular escape

Etymology: L, ventriculus + OFr, escaper
the discharge of a normal ventricular pacemaker cell when the sinus or junctional rate of discharge falls below that of the ventricular pacemaker cells.

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.

escape

the act of becoming free.

autoregulatory escape
after prolonged tissue hypoxia of shock, sympathetic-mediated vasoconstriction gives way to vasodilation in all organs.
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.
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