Effects of implantation technique on hydrodynamic and biomechanical characteristics of stentless aortic valve bioprostheses in experiments

: A comparative analysis of experiments with biomechanics and hydrodynamic stentless xenografts implanted into the subcoronary position with completely (n = 7) and partially (n = 7) scalloped sinuses was made. The implantation was performed into the human aortic root complexes in vitro. Factors of the influence on biomechanical and hydrodynamic performances of xenografts before and after implantation have been established. Subcoronary implantation of stentless bioprostheses with the completely scalloped sinuses proved to result in better flow and biomechanical characteristics than the implantation technique with the saved noncoronary sinus.