vagal 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.

vagal escape

An ectopic heartbeat that occurs when the normal rhythm of the heart has been stopped or inhibited by stimulation of the vagus nerve.
See also: escape

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.