Successful treatment of atrial flutter post-radiofrequency ablation for atrial fibrillation following atrial septal defect occlusion: a case report of pulsed field ablation

Patients with ASD occlusion present unique challenges for ablation, including difficulties in transseptal puncture and risk of injury to the occluder. Pulsed field ablation offers a potential solution, with studies showing fewer reconnected pulmonary veins and larger lesion creation compared with traditional methods. In our case, PFA effectively terminated the refractory AFL, highlighting its utility in this patient population. Moreover, the use of the Jinjiang PFA catheter with pulse circuit self-checking technology ensured procedural safety, particularly near the occluder.