Idioventricular Tachycardia Complicating Experimental Myocardial Infarction

Abstract

The frequent occurrence of idioventricular tachycardia has been documented during the evolution of experimental myocardial infarction in the dog, complementing such observations in humans. The nonvulnerability to fibrillation and the benign hemodynamic nature of this type of ventricular tachycardia is stressed. The influence of the rate of the supraventricular pacemaker on the emergence of this arrhythmia has been demonstrated and the recognition of this arrhythmia with regard to the effect of antiarrhythmic agents has been emphasized.