Is there any progress in the search for the ideal conduit for reconstruction of the right ventricular outflow tract in young children?

Obstructions of the right ventricular outflow tract (RVOT) are common pathologies in congenital heart disease. In the absence of an appropriate pulmonary valve, it is necessary to replace the RVOT with a valved conduit. But searching for the ideal conduit is an on-going task. The ideal conduit should have following characteristics: availability in any sizes, long-term durability, excellent hemodynamics, growth potential and be non-thrombogenic. Currently, such a conduit does not exist.