Survival after aortic root replacement with a stentless xenograft is determined by patient characteristics

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  • Hanna H. Dagnegård
  • Kirstine Bekke
  • Solveig M. Kolseth
  • Natalie Glaser
  • Christoffer Wallén
  • Ismail El-Hamamsy
  • Kristjan O. Vidisson
  • Asbjørn S. Lie
  • Jan B. Valentin
  • Ulrik Sartipy
  • Rune Haaverstad
  • Farkas Vanky
  • Laurence Lefebvre
  • Tomas Gudbjartsson
  • Søren P. Johnsen
  • Søndergaard, Lars
  • Gustav H. Thyregod
  • Jens T. Lund
  • Nikolaj Ihlemann
  • Smerup, Morten Holdgaard

Objectives: Our objective was to examine intermediate-term survival and reinterventions in unselected patients, stratified according to indication, who received a Freestyle (Medtronic Inc, Minneapolis, Minn) bioprosthesis as a full aortic root replacement. Methods: Data from medical records were retrospectively collected for patients who had aortic root replacement using Freestyle bioprostheses between 1999 and 2018 at 6 North-Atlantic centers. Survival status was extracted from national registries and results stratified according to indication for surgery. Results: We included 1030 implantations in 1008 patients with elective indications for surgery: aneurysm (39.8%), small root (8.3%), and other (13.8%), and urgent/emergent indications: endocarditis (26.7%) and Stanford type A aortic dissection (11.4%). Across indications, 46.3% were nonelective cases and 34.0% were reoperations. Median age was 66.0 (interquartile range, 58.0-71.8) years and median follow-up was 5.0 (interquartile range, 2.6-7.9) years. Thirty-day mortality varied from 2.9% to 27.4% depending on indication. Intermediate survival for 90-day survivors with elective indications were not different from the general population standardized for age and sex (P = .95, 83, and .16 for aneurysms, small roots, and other, respectively). In contrast, patients with endocarditis and type A dissection had excess mortality (P < .001). Freedom from valve reinterventions was 95.0% and 94.4% at 5 and 8 years, respectively. In all, 52 patients (5.2%) underwent reinterventions, most because of endocarditis. Conclusions: At intermediate term follow-up this retrospective study provides further support for the use of the Freestyle bioprosthesis in the real-world setting of diverse, complex, and often high-risk aortic root replacement and suggests that outcome is determined by patient and disease, rather than by prosthesis, characteristics.

OriginalsprogEngelsk
TidsskriftJournal of Thoracic and Cardiovascular Surgery
Vol/bind164
Udgave nummer6
Sider (fra-til)1712-1724.e10
ISSN0022-5223
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This work was supported by in-house resources only, at each participating site.

Publisher Copyright:
© 2021 The Authors

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