ADVANCE CRT - D: Antitachycardia Pacing (ATP) Delivery for Painless Implantable Cardioverter Defibrillator (ICD) Therapy

Main objective: Compare efficacy of ATP therapy (Burst, 8 pulses, 88 %, 1 sequence) to terminate all types of ventricular tachycardia (all VTs (FVT+VT)) when delivered in the right ventricle (RV) only versus both ventricles (BiV) resulting in a 10 % difference in favour of BIV ATP Secondary objectives: * Compare efficacy of the first BiV and RV ATP (Burst, 8 pulses, 88 %) to terminate fast ventricular tachycardia (FVT) * Compare efficacy of the first BiV and RV ATP (Burst, 8 pulses, 88 %) to terminate slow ventricular tachycardia (slow VT) * Compare efficacy of BiV and RV ATP (all ATP therapies) to terminate slow ventricular tachycardia (slow VT) * Determine the rate of both FVT and VT episodes which are accelerated or degenerates into VF