Methods
This is a single-center, observational retrospective study including consecutive patients with SHD and documented sustained monomorphic VT (SMVT) referred to our center for VT ablation. All patients undergoing VT ablation in our center are prospectively included in a dedicated database. Baseline clinical, imaging and analitics data as well as procedural and follow-up details are included in this database. Patients were included in the final data analysis only if a baseline programmed ventricular stimulation (PVS) protocol aiming for VT induction was performed after substrate mapping and before ablation. All patients gave informed consent and the study was carried out following the recommendations of the ettical committee of the Hospital Universitari i Politècnic La Fe.