Multicenter Automatic Defibrillator Implantation Trial With Subcutaneous Implantable Cardioverter Defibrillator

In this study, subjects were randomized to receive a subcutaneous implantable cardioverter defibrillator or Conventional Medical Therapy (CMT). Randomization was stratified by enrolling site, in a 2:1 (S-ICD:CMT) scheme. Length of follow-up for each subject was dependent on the date of entry into the study, since all subjects were followed to a common study termination date.