Rv Pa Conduit Replacement

Complete repair for pulmonary atresia is usually carried out after the first year of life though sometimes it may be performed earlier.

Rv pa conduit replacement. Rv to pa conduit pulmonary valve replacement rv muscle resection. This is a 17 year old who was born with complex congenital heart disease as well asprematurity. Freedom from conduit reoperation after conduit 2 called conduit 3 was 80 at 5 years and 39 at 10 years. Reconstruction of right ventricle to pulmonary artery rv pa continuity is an integral part of various surgical procedures commonly performed in neonates and young infants to repair congenital.

The melody valve medtronic inc minneapolis mn is. A right ventricle to pulmonary artery rv pa conduit is a means to supply blood flow to the lungs. Nonsurgical pulmonary valve replacement. In total correction the vsd is closed and rv pa conduit is interposed between the rv and the distal pulmonary artery which was excised from the truncal artery b in ross procedure 2 aortic valve replacement is performed with a pulmonary autograft and a valved conduit is used as a substitute for it fig.

Our results support the optimal surgical approach for rv pa conduit obstruction is total replacement with a xenograft. Background right ventricle to pulmonary artery rv pa homografts and bioprosthetic conduits are commonly used to palliate various types of complex congenital heart disease. They can be placed for a variety of heart defects including tetralogy of fallot pulmonary atre sia or pulmonary stenosis. Ellen rawlinson natalie forshaw in a practice of anesthesia for infants and children sixth edition 2019.

Rv pa conduits are also part of a many complex surgeries for congen ital heart disease including the ross procedure. Bonhoeffer and colleagues 29 first described the technique of replacing a dysfunctional valve in a right ventricle to pulmonary artery rv pa conduit with a catheter implanted valve in 2000. He was diagnosed at birth with complex congenital heart disease with tetralogy of fallot and pulmonary atresia as well as prematurity weighing 1 kg. This report reviews our experience implanting balloon expandable stents to relieve conduit obstruction and delay reoperation.

At our institution transcatheter conduit dilation and or stenting is often performed in an effort to relieve rv pa conduit obstruction and to minimize rv work before referral for conduit reoperation. These conduits frequently develop progressive obstruction and require surgical replacement. The short lifespan of right ventricle to pulmonary artery rv pa conduits used in repairs of complex congenital heart defects makes future surgical replacement inevitable. Complete repair for pulmonary atresia usually necessitates the insertion of a conduit which is a tube containing a valve placed to connect the right ventricle to the pulmonary artery.

Freedom from second reoperation for conduit obstruction was significantly higher in group a patients at 5 and 8 years p 0 04 and those with xenografts rather than homograft p 0 04.