Safety and Efficacy of Transcatheter Aortic Valve Replacement in the Treatment of Pure Aortic Regurgitation in Native Valves and Failing Surgical Bioprostheses: Results From an International Registry Study

Fadi J Sawaya, Marcus-André Deutsch, Moritz Seiffert, Sung-Han Yoon, Pablo Codner, Upul Wickramarachchi, Azeem Latib, A Sonia Petronio, Josep Rodés-Cabau, Maurizio Taramasso, Marco Spaziano, Johan Bosmans, Luigi Biasco, Darren Mylotte, Mikko Savontaus, Peter Gheeraert, Jason Chan, Troels H Jørgensen, Horst Sievert, Marco MocettiThierry Lefèvre, Francesco Maisano, Antonio Mangieri, David Hildick-Smith, Ran Kornowski, Raj Makkar, Sabine Bleiziffer, Lars Søndergaard, Ole De Backer

    163 Citationer (Scopus)

    Abstract

    OBJECTIVES: The aim of this study was to evaluate the use of transcatheter heart valves (THV) for the treatment of noncalcific pure native aortic valve regurgitation (NAVR) and failing bioprosthetic surgical heart valves (SHVs) with pure severe aortic regurgitation (AR).

    BACKGROUND: Limited data are available about the "off-label" use of transcatheter aortic valve replacement (TAVR) to treat pure severe AR.

    METHODS: The study population consisted of patients with pure severe AR treated by TAVR at 18 different centers. Study endpoints were device success, early safety, and clinical efficacy at 30 days, as defined by Valve Academic Research Consortium 2 criteria.

    RESULTS: A total of 146 patients were included, 78 patients in the NAVR group and 68 patients in the failing SHV group. In the NAVR group, device success, early safety, and clinical efficacy were 72%, 66%, and 61%, respectively. Device success and clinical efficacy were significantly better with newer generation THVs compared with old-generation THVs (85% vs. 54% and 75% vs. 46%, respectively, p < 0.05); this was mainly due to less second THV implantations and a lower rate of moderate to severe paravalvular regurgitation (10% vs. 24% and 3% vs. 27%, respectively). Independent predictors of 30-day mortality were body mass index <20 kg/m2, STS surgical risk score >8%, major vascular or access complication, and moderate to severe AR. In the failing SHV group, device success, early safety, and clinical efficacy were 71%, 90%, and 77%, respectively.

    CONCLUSIONS: TAVR for pure NAVR remains a challenging condition, with old-generation THVs being associated with THV embolization and migration and significant paravalvular regurgitation. Newer generation THVs show more promising outcomes. For those patients with severe AR due to failing SHVs, TAVR is a valuable therapeutic option.

    OriginalsprogEngelsk
    TidsskriftJACC: Cardiovascular Interventions
    Vol/bind10
    Udgave nummer10
    Sider (fra-til)1048-1056
    Antal sider9
    ISSN1936-8798
    DOI
    StatusUdgivet - 22 maj 2017

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