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. 2023 Nov 24;5(1):24–33. doi: 10.1016/j.hroo.2023.11.015

Figure 5.

Figure 5

Multipolar ablation using an irrigated ablation catheter and multielectrode mapping catheter (EPstar). Earliest local ventricular activation was recorded in the GCV (42 ms pre-QRS), but the ablation catheter could not be advanced to this site, and endocardial ablation from the LVOT was unsuccessful. Therefore, ablation was performed between the LVOT and electrodes 5 and 6 of the EPstar catheter, which were connected to the ground port of the generator via jumper cables. This resulted in successful and durable PVC suppression. Abbreviations as in Figure 2.