Primary endpoint | Mean transvalvular gradient (mmHg), six months after surgery |
Secondary endpoints | Effective aortic orifice diameter measured by CT-scan and echocardiography compared with the surgical data (mm) |
Mean transvalvular gradient (mmHg), at day seven after surgery | |
Aortic bioprosthesis orifice area (m2), six months after surgery | |
Diameter of the aortic orifice measured by a flat-head candle compared with the size of the implanted bioprosthesis (mm) |