Catheter ablation design
Catheter design is so critical when PVI is the main target of AF ablation. In my view, the adoption of the complaint RF balloon implies a more ostial lesion and, thus a more limited area of lesion is produced at the PV antrum. As opposite, the pentaspline PFA catheter provides two configurations (31 mm – basket - and 35 mm flower) which can favor, in eight setting of applications, ostial and antral lesions as well. Therefore, it should not be a surprise to achieve a broad area of lesion with PFA catheter than with RF balloon-based catheter, based on the specific catheter design.