Minimally invasive valve resection and replacement: polycarbonateurethane valved stent implantation

Tissue engineering is an upcoming technique for heart valve replacement, providing a living valve, capable of growth and biological integration. Heart valves made of synthetic polymers such as polyurethanes exhibit biocompatibility, bioresorbability and excellent mechanical properties with high durability. Endothelial progenitor cells (EPCs) are ideal candidates for vascular regenerative therapy, as they participate in blood vessel formation and incorporate into damaged vascular structure. In this project, the optimal conditions for administration of EPCs on polymeric scaffolds will be improved. Functionality, biocompatibility, inflammatory capacity and biological integrity of these engineered valved stents will be analysed in vivo (sheep model) for human cardiovascular application.