The study will evaluate the effect of prophylactic intra-operative ventricular tachyarrhythmia ablation (VTA) at the time of left ventricular assist device (LVAD) implantation on post-implant total recurrent VTA events, after accounting for the competing risk of death, from discharge to an average follow-up of 18 months (with a minimum of 9 months) after LVAD implantation.