Methods
The study was a single-center retrospective cohort study. All 139 consecutive OTT and VPB first ablation procedures between 2010 and 2014 were included. Patients with structural heart disease were excluded.
The study was a single-center retrospective cohort study. All 139 consecutive OTT and VPB first ablation procedures between 2010 and 2014 were included. Patients with structural heart disease were excluded.