title: Implantation of two self-expanding aortic bioprosthetic valves during the same procedure-Insights into valve-in-valve implantation ("Russian doll concept").
abstract: Transcatheter aortic valve implantation has gained acceptance as a treatment for elderly patients considered high risk for surgical aortic valve replacement. There are still, however, many unresolved clinical and technical issues. The occurrence of transcatheter aortic valve-in-valve implantation has been reported anecdotally. Aside from a single case report, there is little literature on this topic. This study was conducted to evaluate the procedural, imaging, and clinical outcomes of patients who underwent transcatheter valve-in-valve implantation with two self-expanding aortic valve bioprostheses during the same procedure. We discuss also the potential valve of on-line quantitative angiography for assessing the depth of valve implantation and the need to implant a second valve.
authors.affiliation: Interventional Cardiology Department, Erasmus MC, Thoraxcenter, Rotterdam, the Netherlands.
authors.forename: Nicolo
authors.initials: N
authors.lastname: Piazza
authors.forename: Carl
authors.initials: C
authors.lastname: Schultz
authors.forename: Peter P T
authors.initials: PP
authors.lastname: de Jaegere
authors.forename: Patrick W
authors.initials: PW
authors.lastname: Serruys
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001021:Aortic Valve; D001705:Bioprosthesis; D006328:Cardiac Catheterization / Q000295:instrumentation*; D002404:Catheterization; D017809:Fatal Outcome; D005260:Female; D006349:Heart Valve Diseases / Q000000981:diagnostic imaging / Q000628:therapy*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D015641:Radiography, Interventional; D016896:Treatment Outcome