title: Which available transapical transcatheter valve fits into degenerated aortic bioprostheses?
abstract: The transapical transcatheter aortic valve implantation (TA-TAVI) in degenerated aortic bioprosthesis is an emerging therapy for surgically non-amenable patients. However, the presence of different types of aortic bioprostheses (stented and stentless), available in different sizes (19-27 mm), can be at the origin of important mismatches between the malfunctioning, degenerated aortic valves and the inner stent-valves implanted through transapical accesses (23 and 26 mm Edwards Sapien transcatheter stent-valves). We report an emergency TA-TAVI treatment of a severely regurgitant degenerated 23 mm Mitroflow aortic bioprosthesis (Sorin Group, Milano, Italy) implanted seven years earlier in an 80-year-old lady, and we reviewed the current available literature about transapical 'valve-in-valve' procedures to analyze the hemodynamic results and the ideal 'prosthesis-to-prosthesis' match.
authors.affiliation: Department of Cardiovascular Surgery, University Hospital of Lausanne CHUV, CH-1011 Lausanne, Switzerland. enricoferrari@bluewin.ch
authors.forename: Enrico
authors.initials: E
authors.lastname: Ferrari
authors.forename: Carlo
authors.initials: C
authors.lastname: Marcucci
authors.forename: Christopher
authors.initials: C
authors.lastname: Sulzer
authors.forename: Ludwig Karl
authors.initials: LK
authors.lastname: von Segesser
mesh_terms: D000369:Aged, 80 and over; D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D001705:Bioprosthesis; D006328:Cardiac Catheterization / Q000295:instrumentation*; D017548:Echocardiography, Transesophageal; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D006439:Hemodynamics; D006801:Humans; D011474:Prosthesis Design; D011475:Prosthesis Failure