Korean J Thorac Cardiovasc Surg.  2008 Aug;41(4):417-422.

Twenty-one Year Experience with Right Ventricle to Pulmonary Artery Conduit Interposition

• Kwak JG
• Yoo JS
• Kim YJ
• Kim WH
• Lee JR

Abstract

BACKGROUND: The aim of this study is to evaluate the long term results of creating various right ventricle to pulmonary artery conduits for treating complex congenital heart disease. MATERIAL AND METHOD: Between June 1986 and July 2006, we retrospectively reviewed 245 patients who underwent reconstruction of the right ventricular outflow tract with various kinds of conduits. 410 operations were done in 245 patients, the mean age at operation was 3.2+/-4.9 years (range: 7 days~45 years) and the mean body weight was 12.5+/-8.7 kg (range: 2.4~76.3 kg). RESULT: We used the following conduits: Polystan conduit, Shelhigh conduit, Carpenter-Edward conduit, Dacron graft with an artificial valve, valveless Gore Tex vascular graft, homograft and hand-made bovine or autologous pericardial conduit. The mean follow up duration was 6.3+/-5.2 years. Redo operation for RV-PA conduit dysfunction was performed in 131 patients, a second redo was done in 31 and a third redo was done in 3. The reoperation free rates were 67.3%, 48.5% and 39.4% for 5 years, 10 years and 15 years, respectively. The homograft showed the best durability, followed by the Dacron graft with artificial valve and the Carpentier-Edward conduit. The larger sized conduit showed better durability. CONCLUSION: The homograft showed lowest reoperation rate and a smaller size of conduit showed the highest reoperation rate. The reoperation rate for the RV-PA conduit was about 35% at 5 years, so it is mandatory to develop the more durable conduit for RV outflow.

Keyword

Conduits; Rastelli operation; Pulmonary atresia; Tetralogy of Fallot

MeSH Terms

Body Weight
Follow-Up Studies
Heart Diseases
Heart Ventricles
Humans
Polyethylene Terephthalates
Polytetrafluoroethylene
Pulmonary Artery
Pulmonary Atresia
Reoperation
Retrospective Studies
Tetralogy of Fallot
Transplantation, Homologous
Transplants
Polyethylene Terephthalates
Polytetrafluoroethylene