An accelerating ventricular tachycardia ending in fibrillation can be initiated in isolated hearts by procaine injections after the administration of epinephrine, but not in untreated hearts. The run of tachycardia consists of a supraventricular or idioventricular impulse followed by an accelerating train of premature systoles coupled to it. Fibrillation results when the train reaches a frequen...

An accelerating ventricular tachycardia ending in fibrillation can be initiated in isolated hearts by procaine injections after the administration of epinephrine, but not in untreated hearts. The run of tachycardia consists of a supraventricular or idioventricular impulse followed by an accelerating train of premature systoles coupled to it. Fibrillation results when the train reaches a frequen...

I read with interest the article by Steensrud and colleagues on myocardial protection with nicorandil cardioplegia [1]. The study investigates the protective efficacy of intermittent cold blood nicorandil cardioplegia compared with intermittent standard hyperkalemic cold blood and cold crystalloid cardioplegia in pigs undergoing cardiopulmonary bypass and hearts subjected to 60 min global ische...