“…In thirteen cases, a balloon-expandable valve (Sapien, Sapien XT, Sapien 3; Edwards Lifescience, Irvine, CA, USA) was implanted (5,6,8,(9)(10)(11)13,(16)(17)(18)(19)21). In the remaining five cases, a self-expanding valve (Corevalve, Evolut R, Evolut Pro, Medtronic, Minneapolis, MN, USA) was used (7,9,12,14,15,20). Both valve types have specific characteristics related to valve design and implantation technique.…”