Conclusion
We successfully diagnosed and ablated NRFT originating from the left posterior fascicle in a child. NRFT is a controllable VT not to be over\souttlooked when a 12-lead electrocardiogram shows relatively narrow QRS tachycardia with a right bundle branch block-type configuration even in the pediatric setting.
Author contribution: Y.N. and S.T. drafted the main manuscript text and prepared figures. K.S., H.T. and S.O. gave conceptual advice and supervised the study process. K.Y. and H.N. critically reviewed the manuscript. All authors reviewed the manuscript and approved the final manuscript.