Iatrogenic intra-atrial macro-reenterant tachycardia following transcatheter closure of atrial septal defect treated by radiofrequency ablation

Percutaneous closure of an atrial septal defect (ASD) has been established as a safe and effective alternative to surgical management. We describe a case of a 41-year-old patient in whom an Amplatzer septal occluder device was used to close a moderately large ASD and who subsequently developed incessant intra-atrial macro-reenterant tachycardia. The tachycardia was terminated by radiofrequency ablation guided by electroanatomical mapping.