Electroanatomic mapping-guided radiofrequency ablation of multifocal atrial tachycardia in a child

The incidence of multifocal atrial tachycardia (MAT) in infants and children is very low, accounting for approximately 1% of supraventricular tachycardia (SVT) substrates. MAT is a relatively benign disease, and long-term health depends mostly on the underlying conditions. Recently, three-dimensional (3D) mapping systems have been used in pediatric patients. Herein, we report a case, which was successfully used 3D mapping in a child during catheter ablation of MAT originating from right pulmonary veins.