Fig. 5
From: Clinical characteristics and therapeutic strategy of frequent accelerated idioventricular rhythm
Ablation of AIVR with an RBB focus (Patient 27). A decapolar catheter was placed along the HIS-RBB axis. Upper panel: The activation of HIS-RBB went from proximal to distal (green arrow), but was reversed during AIVR (red arrow). Lower panel: The ablation target on the endocardial electrogram and three-dimensional mapping. Please note the advanced Purkinje potential on ablation catheter. ABL, ablation catheter; AIVR, accelerated idioventricular rhythm; CS, coronary sinus; HRA, high right atrium; RBB, right bundle branch