Approval for the subcutaneous implantable defibrillator (s-icd) system. this device is indicated to provide defibrillation therapy for the treatment of life-threatening ventricular tachyarrhythmias inpatients who do not have symptomatic bradycardia, incessant ventricular tachycardia, or spontaneous, frequently recurring ventricular tachycardia that is reliably terminated with antitachycardia pacing.