1. Survival after aortic root replacement with a stentless xenograft is determined by patient characteristics
- Author
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Lars Søndergaard, Asbjørn S. Lie, Ismail El-Hamamsy, Farkas Vánky, Gustav H. Thyregod, Hanna H. Dagnegård, Solveig Moss Kolseth, Jan Brink Valentin, Nikolaj Ihlemann, Christoffer Wallén, Kirstine Bekke, Laurence Lefebvre, Kristjan Orri Vidisson, Ulrik Sartipy, Morten Holdgaard Smerup, Tomas Gudbjartsson, Søren Paaske Johnsen, Jens Lund, Rune Haaverstad, and Natalie Glaser
- Subjects
Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Population ,Prosthesis Design ,survival ,Prosthesis ,Aneurysm ,full root bioprosthesis ,Interquartile range ,Humans ,Medicine ,Endocarditis ,education ,Aged ,Retrospective Studies ,Heart Valve Prosthesis Implantation ,Bioprosthesis ,Aortic dissection ,education.field_of_study ,business.industry ,Kirurgi ,type A dissections ,EuroSCORE ,Retrospective cohort study ,medicine.disease ,aortic root replacement ,Surgery ,Treatment Outcome ,Heart Valve Prosthesis ,Aortic Valve ,reinterventions ,endocarditis ,Heterografts ,Cardiology and Cardiovascular Medicine ,business ,Follow-Up Studies - Abstract
Objectives Our objective was to examine intermediate-term survival and reinterventions in unselected patients, stratified by indication, who received a Freestyle® 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 six North-Atlantic centers. Survival status was extracted from national registries and results stratified for 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 non-elective cases and 34.0% were reoperations. Median age was 66.0 years (IQR 58.0-71.8) and median follow-up was 5.0 years (IQR 2.6-7.9). 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 by age and sex (p-values 0.95, 0.83 and 0.16 for aneurysms, small roots and other, respectively). In contrast, patients with endocarditis and type A dissection had excess mortality (p-values 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.
- Published
- 2022
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