Stent implantation for postoperative conduit anastomosis stenosis

Anatomical complications may occur after surgical repair procedures for congenital heart diseases. A 13-year-old boy presented with progressively decreased effort capacity. He had a history of bilateral Blalock-Taussig pulmonary shunt operation shortly after birth with diagnoses of transposition of the great arteries, pulmonary atresia, ventricular septal defect, and patent ductus arteriosus. In addition, he underwent a Rastelli operation (a left ventricular to aorta and right ventricular to pulmonary artery conduits) and reconstruction of the right ventricle outflow tract at the age of seven years. Right ventriculography showed bilateral stenosis of the pulmonary artery conduit anastomoses. Balloon angioplasty with stent implantation was performed, after which his complaints disappeared and effort capacity increased.