<qa>  What is the name of the type of arrhythmia that is symptomatic or requires10. History of clinically significant arrhythmia multifocal PVCs, bigeminy, trigeminy, ventricular tachycardia which is symptomatic or requires treatment CTC grade 3 or asymptomatic sustained ventricular tachycardia. Atrial fibrillation, controlled on medication is not excluded. 