4.2 | The feasibility of PVI
Durable PVI is the cornerstone for PeAF ablation.9 The efficacy and safety of PVI with PFA in paroxysmal AF had been demonstrated absolutely in previous studies.7,8 In our study, the acute successful PVI of PFA was excellent despite the unsatisfying PVI durability which might be due to inadequate contact of the circular PFA catheter located at the anterior or posterior carina in PV. The utilization of a steerable sheath may be a promising approach to improve the contact of the circular PFA catheter. Thus, ensuring stable PFA catheter contact, along with adequate energy delivery and sufficient applications, is crucial to enhance PVI durability.