First successful ablation of atrial tachycardia from right atrial appendage using circular pulse field ablation catheter

Introduction: Atrial tachycardia(AT) occurring from the right atrial appendage(RAA) is relatively uncommon, while the catheter ablation is complicated by the anatomic characteristics. Methods: : We reported a case of 60-year-old male patient who was admitted with incessant AT. Results: : The tachycardia activation mapping demonstrated that the AT originated from the tip of RAA. Pulsed field ablation(PFA) using the circular mapping&PFA catheter terminated AT without any complication. Conclusions: : This case corroborates that PFA might be an alternative strategy for ablation of atrial arrhythmia originating from the atrial appendage.