title: Mitral valve-in-valve and valve-in-ring: technical aspects and procedural outcomes.
abstract: There is a growing practice of transcatheter treatment of failed mitral valves after cardiac surgery, including valve-in-valve and valve-in-ring. Although commonly successful, these procedures can be associated with device malposition (including delayed malposition) and elevated post-procedural gradients (especially when performed inside small surgical valves). Valve-in-ring procedures have elevated risks of left ventricular outflow tract obstruction and post-procedural regurgitation. Careful patient selection and meticulous evaluation of patient anatomy and surgical implant characteristics are essential to achieve optimal clinical results with mitral valve-in-valve and valve-in-ring implantation.
authors.affiliation: University of Washington Medical Center, Seattle, WA, USA.
authors.forename: Danny
authors.initials: D
authors.lastname: Dvir
authors.forename: John
authors.initials: J
authors.lastname: Webb
mesh_terms: D001705:Bioprosthesis; D006328:Cardiac Catheterization / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D018618:Echocardiography, Doppler, Color; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D058386:Mitral Valve Annuloplasty / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D018579:Patient Selection; D011474:Prosthesis Design; D011475:Prosthesis Failure; D015641:Radiography, Interventional; D012307:Risk Factors; D016896:Treatment Outcome