Sustained idiopathic ventricular tachycardia originating from the posteroseptal tricuspid annulus.

Tricuspid annular ventricular tachycardia (VT) is a rarely encountered entity. Despite abundant data on idiopathic VTs, the prevalence and clinical characteristics of this infrequent form are not well defined and the efficacy of radiofrequency (RF) catheter ablation treatment remains unknown. We report on a case of a 44-year-old male presenting with symptomatic sustained idiopathic VT originating from the posteroseptal tricuspid annulus.