Clinical outcomes of injectable and conventional pulmonary valve replacement in severe pulmonary regurgitation.

Pulmonary regurgitation following tetralogy of Fallot repair is a common long-term complication requiring pulmonary valve replacement.

This study aimed to evaluate short-term and long-term clinical outcomes of injectable pulmonary valve replacement and conventional pulmonary valve replacement in pediatric patients with severe pulmonary regurgitation following tetralogy of Fallot repair.