The effect of adrenergic enhancement on overdrive excitation.


The effect of adrenergic enhancement (stimulation of a stellate ganglion or administration of norepinephrine) on arrhythmias induced by ventricular overdrive ("overdirve excitation") was studied in dogs with complete atrioventricular block. The following results were obtained. (1) Adrenergic enhancement may lead to abnormal ventricular rhythms. (2) A brief… (More)


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