Key result
A new stentless biological conduit with a porcine valve was used in 3 recent modified Norwood procedures to potentially prevent retrograde diastolic blood flow.
Why the study?
Does a stentless valved conduit prevent retrograde diastolic blood flow in patients undergoing the Norwood-Sano operation?
Case Report (n=3)
Does a stentless valved conduit prevent retrograde diastolic blood flow in patients undergoing the Norwood-Sano operation?
The use of a stentless valved conduit in the Norwood-Sano operation may prevent retrograde diastolic blood flow and improve postoperative hemodynamics.
May support valved conduits in Norwood-Sano to limit retrograde flow; hypothesis-generating and should not yet change practice.
The Sano modification of Norwood's operation has the potential to generate an excess volume load on the single right ventricle as a consequence of diastolic reversal of flow through the conduit. This article describes the use of a new, small, biological conduit with a porcine valve inside. This new conduit has been used in modified Norwood procedures. It is interposed between the right ventricle and the confluence of the pulmonary arteries. The use of a valved conduit should prevent the retrograde diastolic blood flow observed with use of nonvalved conduits and may improve postoperative hemodynamics. The use of a new stentless valved conduit in 3 recent Norwood procedures is reported herein.
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Ginestar et al. (2010) conducted a case report in Single right ventricle requiring Norwood procedure (n=3). Stentless pulmonary valved conduit was evaluated. A new stentless biological conduit with a porcine valve was used in 3 recent modified Norwood procedures to potentially prevent retrograde diastolic blood flow.
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