Ventricular Outflow Tract Reconstruction with Polystan Valved Conduit

Experience with Polystan valved conduits in children with congenital heart disease was reviewed. From May 1997 to October 2000, 52 Polystan valved conduits were used for reconstruction of the pulmonary ventricular outflow tract in 50 patients. The median age was 24 months (range, 7 days to 19 years), body weight was 11 kg (range, 2.8 to 52 kg), and conduit size at operation was 19 mm (range, 12 to 24 mm). Early mortality was 12% (6/50). Late mortality was 6% (3/50). The median follow-up of survivors was 25 months (range, 2 to 43 months). Three patients underwent conduit replacement; 2 received larger conduits in a second-stage operation for ventricular septal defect closure. There was no death at reoperation. Polystan valved conduits can be used for reconstruction of the pulmonary ventricular outflow tract in congenital heart disease, with no significant conduit-related problems.