fig4

Figure 4. Illustration of the mitral valved stent prototypes with apical and additional sub-annular fixation elements (red arrows), comprising atrial element (LA), ventricular body (LV) and BV. The AF points are indicated by dots. A and B: apical view; C and D: ventricular view of the prototype SA with additional subannular fixation; E and F: lateral view of the prototype SA12. LA: left atrium; LV: left ventricle; BV: bioprosthetic heart valve; AF: apical fixation; MA: mitral annulus; SA: sub-annular