Bipolar ablation of ventricular arrhythmias: Step‐by‐step

Abstract

Radiofrequency (RF) ablation of intramural ventricular arrhythmias (VAs) may require advanced ablation techniques to achieve effective energy transfer to the targeted tissue. As an alternative to standard RF ablation, catheter ablation can also be conducted in bipolar configuration when two ablation catheters participate in the RF circuit. This strategy has proved to result in deeper lesion formation and may be effective for eliminating arrhythmias that have been refractory to standard ablation. In this article, we provide a step‐by‐step guide on when and how to perform bipolar ablation of VAs.

Challenges in Ventricular Arrhythmia Ablation: Difficult Substrates and Advanced Ablation Strategies

“…Another advanced ablation technique involves delivering radiofrequency current using two ablation catheters in a bipolar fashion, where one catheter connects to the ground port instead of the dispersive patch [43]. This approach appeared effective for treating PVC/VTs from challenging locations such as the interventricular septum [44], LVS [45][46][47], or RVOT diverticulum [48].…”