title: Lack of Accessible Data on Prosthetic Heart Valves.
abstract: Incomplete information on characteristics of prosthetic heart valves (PHV) may lead to inappropriate choices for PHV implantation (patient-prosthesis-mismatch) or erroneous interpretation of PHV function after implantation. No single and easy accessible source provides all relevant information on PHV. The aim of this study was to provide a comprehensive overview of available data for the majority of PHVs and annuloplasty rings. Information was collected by reviewing articles published on www.pubmed.org up to December 2014 and by written contact to all PHV manufacturers. Four areas of interest were defined: (1) PHV image, (2) in vivo transvalvular gradients, (3) effective orifice area (EOA) calculators and (4) PHV dimensions. Available information was classified as complete (all categories), partial (two or three categories) or minimal (one category). 108 PHV (including homografts) and 34 annuloplasty rings systems were identified. The information on PHV was complete, partial or minimal in 19.5, 61.0 and 19.5% of PHV, respectively. In 91.6% a picture of the valve could be obtained, whereas normative data for transvalvular gradients and EOA calculators were available in 63.0 and 25.0% of all PHV, respectively. The available data was summarized on a new open access webpage ( www.valveguide.ch ). There is a lack of accessible data on PHV dimensions, normal transvalvular gradients and effective orifice area calculators, although such information is of crucial importance for proper PHV assessment.
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Michelle
authors.initials: M
authors.lastname: Frank
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Giulia
authors.initials: G
authors.lastname: Ganzoni
authors.affiliation: University Heart Center, Department of Cardiovascular Surgery, University Hospital of Zurich, Zurich, Switzerland.|Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Starck
authors.affiliation: University Heart Center, Department of Cardiovascular Surgery, University Hospital of Zurich, Zurich, Switzerland.|Heart Clinic Zurich, Witellikerstrasse 40, 8032, Zurich, Switzerland.
authors.forename: Jürg
authors.initials: J
authors.lastname: Grünenfelder
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.|Heart Clinic Zurich, Witellikerstrasse 40, 8032, Zurich, Switzerland.
authors.forename: Roberto
authors.initials: R
authors.lastname: Corti
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Christiane
authors.initials: C
authors.lastname: Gruner
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.|Heart Clinic Zurich, Witellikerstrasse 40, 8032, Zurich, Switzerland.
authors.forename: David
authors.initials: D
authors.lastname: Hürlimann
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Felix C
authors.initials: FC
authors.lastname: Tanner
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Rolf
authors.initials: R
authors.lastname: Jenni
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
authors.forename: Matthias
authors.initials: M
authors.lastname: Greutmann
authors.affiliation: University Heart Center, Department of Cardiology, University Hospital of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland. pbiaggi@gmx.ch.|Heart Clinic Zurich, Witellikerstrasse 40, 8032, Zurich, Switzerland. pbiaggi@gmx.ch.
authors.forename: Patric
authors.initials: P
authors.lastname: Biaggi
mesh_terms: D022126:Access to Information; D003952:Diagnostic Imaging / Q000379:methods; D019317:Evidence-Based Medicine; D006349:Heart Valve Diseases / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D006351:Heart Valves / Q000503:physiopathology / Q000601:surgery*; D006439:Hemodynamics; D006801:Humans; D020407:Internet; D011183:Postoperative Complications / Q000209:etiology; D011474:Prosthesis Design; D018570:Risk Assessment; D012307:Risk Factors; D016896:Treatment Outcome
keywords: Annuloplasty rings; Patient prosthesis mismatch; Prosthetic heart valves; Valve app; Valve repair; Valve replacement; valveguide.ch