Of the 432 patients randomized to either treatment, 219 were assigned to undergo treatment with the investigational system and 213 were assigned to undergo treatment with the control system. Before the ablation procedure, seven patients in the investigational arm and five patients in the control arm were withdrawn. The primary analysis consisted of 212 patients in the investigational arm and 208 patients in the control arm. Of these 420 patients, 408 (97.1%) completed the trial with 12 months of follow-up.
