Peak frequency analysis of the straight-shaped pulsed field ablation catheter during cavotricuspid isthmus ablation

In recent years, pulsed field ablation (PFA) catheter-based treatment has become increasingly prevalent, with applications now extending beyond pulmonary vein isolation (PVI). The most widely used PFA catheter in the market is the Farapulse (Boston Scientific, Marlborough, MA, USA), which has been reported to demonstrate both high efficacy and safety.1 However, several studies have highlighted the potential risk of inducing coronary artery vasospasm.2 This risk is particularly pronounced when performing PFA applications near coronary arteries, such as in cavotricuspid isthmus (CTI) or mitral valve isthmus regions.