In Başkent University Hospital, from January 1999 to October 2000, 34 patients underwent open heart surgery for Cryolife-Ross xenogreft valved conduit implantation. The mean age and weight of the patients were 8.0 ± 6.6 years old (4 months - 28 years old), and 22.7 ± 15.3 kg (4.4-54 kg), respectively. The diagnoses were corrected transposition of great arteries in 4 patients, double outlet right ventricle in 5 patients, tetralogy of Fallot in 5 patients, transposition of great arteries in 9 patients, truncus arteriosus in 2 patients, pulmonary atresia in 5 patients, abscence of pulmonary valve in 2 patients, and Shone complex in 1 patient. The last patient had ventricular septal defect with vegetations in the pulmonary artery at the previous pulmonary banding site. The mean aortic cross clamp time was 105.0 ± 37.0 min (range, 34 to 196 min), and the mean cardiopulmonary bypass time was 163.1 ± 70.1 min (range 62 to 390 min). In 6 patients circulatory arrest was used. In the early postoperative period 6 patients died; 3 of them had pulmonary atresia, 2 patients had truncus arteriosus, and one patient had Shone complex. In the intermediate postoperative period one patient who had double outlet right ventricle repair died because of Brusella endocarditis.

In congenital heart surgery, the use of valved conduits permits repair of complex congenital heart malformations but conduit dysfunction brings the necessity to replace them for a certain period of time. There was early dysfunction among these 34 patients and they hawe been followed for the long term results.