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![Transcatheter mitral valve implantation: different fixation techniques](https://image.oaes.cc/ede91bd8-fe70-4a25-ae01-28c551674c4a/3513.fig.1.jpg)
Figure 1. A: ventricular view of the atrioventricular valved stent. It consists of a bovine pericardial valve of 27 mm diameter, a custom-made nitinol stent, and a ventricular fixation system consisting of the annular radial force of the nitinol stent and four tethers fixed at the apex; B: atrial view of the prototype valved stent[3]; C: ventricular view of the new refined mitral valved stent; D: operative setting after ministernotomy (2 inches) with this valved stent and apex of the heart with purse-string sutures is exposed[6]