Valve-in-Valve Implantation Using the ACURATE Neo in Degenerated Aortic Bioprostheses: An International Multicenter Analysis

Andreas Holzamer, Won-Keun Kim, Andreas Rück, Janarthanan Sathananthan, Lukas Keller, Joseph Cosma, Timm Bauer, Holger Nef, Ignacio J Amat-Santos, Miriam Brinkert, Oliver Husser, Costanza Pellegrini, Joachim Schofer, Roberto Nerla, Matteo Montorfano, Francesco Giannini, Pieter Stella, Shingo Kuwata, Michael Hilker, Fausto CastriotaGian Paolo Ussia, John G Webb, Fabian Nietlispach, Stefan Toggweiler

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVES: This study reports an international experience using the transfemoral ACURATE neo transcatheter heart valve (Boston Scientific, Marlborough, Massachusetts) for the treatment of degenerated surgical aortic bioprostheses.

BACKGROUND: Transcatheter valve-in-valve procedures have emerged as an alternative to redo surgery. Supra-annular prostheses might be particularly useful in this indication.

METHODS: This is an international multicenter analysis including 85 patients from 14 centers in Europe and Canada undergoing an ACURATE neo valve-in-valve procedure from March 2015 to February 2019.

RESULTS: Internal diameter of the degenerated bioprosthesis was 20.3 ± 2.1 mm. Prosthesis size S was used in 70 (82%) procedures. The median depth of implantation was 3 mm and the upper crown of the ACURATE neo was positioned above the stent posts of the degenerated bioprosthesis in 54 (64%) and inside in 31 (36%). Mean transvalvular gradient before discharge was significantly lower if the upper crown was above the degenerated bioprosthesis (13.7 ± 5.9 mm Hg vs. 19.5 ± 10.0 mm Hg; p = 0.001). However, a high position of the ACURATE neo resulted in embolization in 1 patient, conversion to open-heart surgery in 1, and need for reintervention due to transcatheter heart valve failure within the first 18 months of follow-up in 4.

CONCLUSIONS: This early experience shows that a high implantation of the ACURATE neo with the upper crown above the stent posts of the degenerated bioprosthesis resulted in lower mean transvalvular gradients but a higher rate of malpositioning and early valve degeneration.

Original languageEnglish
Pages (from-to)2309-2316
Number of pages8
JournalJACC. Cardiovascular Interventions
Volume12
Issue number22
DOIs
Publication statusPublished - 25 Nov 2019

Keywords

  • AVA, aortic valve area
  • ID, inner diameter
  • PPM, prosthesis-patient mismatch
  • THV, transcatheter heart valve
  • ViV, valve-in-valve
  • transcatheter aortic valve implantation
  • transfemoral
  • transcatheter aortic valve replacement
  • valve-in-valve
  • degenerated bioprosthesis

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