Pulmonary valve replacement following the arterial switch operation is rare. However, when necessary, how do techniques of transcatheter valve replacement fare for this indication? Why would average outcomes in this setting be less good than in the typical TPVR tetralogy of Fallot patient? How does the presence of stents in the pulmonary arteries in this patient group affect candidacy for TPVR? Are there ways to predict who might be a candidate for a TPVR vs. surgical PVR before coming to the catheterization lab? These are amongst the questions reviewed and posed to Dr. Stephen Nageotte who is the director of the cardiac catheterization laboratory at Loma Linda Children's Hospital in Loma Linda, California.