Efficacy of ablation of ventricular tachyarrhythmias originated from papillary muscles and His-Purkinje system of right and left ventricle

Among 360 patients without structural heart disease, who were operated for ventricular arrhythmias (VAs), 46 (12,8%) patients had premature ventricular complexes (PVC) or ventricular tachycardias (VT) originated from papillary muscles and His - Purkinje system of the right (RV) and left ventricles (LV). The mean follow up period was 40.6±3.6 months. The long-term efficacy in patients with such VAs originated from RV after one or multiple ablation procedures was 78.6% (11 patients) and 92.9% (13 patients) respectively. In patients with VAs originated from LV, the efficacy after one or multiple ablation procedures was 81.3% (26 patients) and 90.6% (29 patients) respectively. Radiofrequency catheter ablation of ventricular tachyarrhythmias originated from papillary muscles and His - Purkinje system of the right and left ventricles allows for removing the above disorders in the overwhelming majority of patients during long-term follow up.