Immediate Tissue Protrusion Following Patent Ductus Arteriosus Stent Placement

Patent ductus arteriosus (PDA) stent placement is commonly performed in children with ductal-dependent pulmonary circulation. We report an extremely rare complication during the stenting of a tortuous PDA in a newborn with Tetralogy of Fallot and pulmonary atresia, along with its management. Immediately after stent placement, tissue protrusion inside the stent lumen was observed, causing a reduction in lumen size. This complication was successfully managed by placing a shorter stent inside the original one at the site of the tissue protrusion.