Radiofrequency ablation can be successfully performed for PVCs originating from uncommon right ventricular sites such as the tricuspid annulus and RV inflow free wall.
Consider TA/RV inflow sites in refractory LBBB-inferior axis VA; case series leaves open full mapping beyond RVOT.
Premature Ventricular Contraction (PVC)/ventricular tachycardia (VT) with left bundle branch block (LBBB) morphology and inferior axis has been described classically to originate from the right ventricular outflow tract (RVOT). Some uncommon sites of idiopathic ventricular arrhythmia (VA) origins have been revealed including tricuspid annulus (TA) and right ventricular (RV) inflow free wall region. We present a series of two cases who have undergone electrophysiological study and successful radiofrequency ablation of frequent monomorphic PVCs with LBBB pattern originating from relatively uncommon sites of RV - TA and RV inflow free wall region.
No takes yet. Share an insight, caveat, or question.
Nair et al. (2018) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: