Predictors of High Post-Procedural Gradients after Catheter-Based Aortic Valve Implantation Using Direct Flow Medical Bioprostheses.

DFM bioprosthesis size significantly influences the TAVI procedure and post-implant valve function. Valve calcification and use of the 29 mm DFM bioprosthesis per se possibly predict a more complicated procedure. Therefore, annulus size and valve calcification severity should be taken into consideration when deciding which bioprosthesis type might be best suited for individual patients.