[Late ventricular potentials in patients with recurrent ventricular tachycardia after myocardial infarct]

In 26 patients who had at least two documented attacks of persisting ventricular tachycardia for 48 hours or longer after a myocardial infarction and whose standard QRS complex during sinus rhythm was < or = 120 ms, the authors examined late ventricular potentials using an Arrhythmia Research Technology apparatus EPX 1200. Positive finding were obtained in 19 (73%) of the patients. The finding is comparable with data in the literature on the prevalence of late ventricular potentials in patients with recurrent persisting ventricular tachycardia after myocardial infarction.