Catheter ablation of typical right atrial flutter in a 20-day-old neonate with tachycardiomyopathy.

Background: Fetal echocardiography can diagnose neonatal atrial flutter, which can cause heart failure in newborns. Little is known about catheter ablation in this population.

Methods: Case report that aimed to review a successful ablation in a 20-day-old patient with refractory atrial flutter.