Key result
ViV-TAVI shows ~74% 4-year survival in higher-risk patients compared to ~88% with redo-SAVR.
Why the study?
Real-world treatment allocation and long-term survival after valve-in-valve TAVI or redo surgical AVR for failed surgical aortic bioprostheses in patients aged 50 to <75 years were not well described.
Does valve-in-valve transcatheter aortic valve implantation (ViV-TAVI) impact long-term survival compared to redo surgical aortic valve replacement (redo-SAVR) in patients aged 50 to <75 years with failed surgical bioprostheses?
Cohort (n=345)
Yes
Does valve-in-valve transcatheter aortic valve implantation (ViV-TAVI) impact long-term survival compared to redo surgical aortic valve replacement (redo-SAVR) in patients aged 50 to <75 years with failed surgical bioprostheses?
In younger patients requiring bioprosthetic aortic valve reintervention, ViV-TAVI is primarily selected for those with high clinical risk and more comorbidities, precluding a direct comparison of long-term outcomes with the lower-risk redo-SAVR cohort.
Selection bias confounds survival comparisons; randomized trials needed to assess ViV-TAVI versus redo-SAVR in comparable younger patients.
Objectives To describe real-world treatment allocation and observed long-term survival in patients aged 50 to < 75 years with failed surgical aortic bioprostheses who underwent reintervention through valve-in-valve transcatheter aortic valve implantation (ViV-TAVI) or redo surgical aortic valve replacement (redo-SAVR) in the Netherlands. Methods Patients aged 50 to < 75 years who underwent ViV-TAVI or redo-SAVR for a failing surgical bioprosthesis between 2015 and 2020 were identified from the Netherlands Heart Registration. Baseline characteristics and Dutch surgical-risk categories were compared by treatment strategy. Multivariable logistic regression was used to identify factors associated with ViV-TAVI selection. Kaplan–Meier analysis described survival, and treatment-specific Cox models explored factors associated with all-cause mortality. Results Of 345 patients, 41% underwent ViV-TAVI and 59% redo-SAVR. Patients selected for ViV-TAVI were older (median 71 vs. 67 years, p < 0.001), had higher surgical risk (EuroSCORE II: 6.2% vs. 4.6%, p = 0.014), and had a greater comorbidity burden than redo-SAVR patients. Despite these baseline risk differences, estimated survival within the ViV-TAVI cohort was 94.2% at 30 days, 89.6% at 2 years, and 74.4% at 4 years; corresponding redo-SAVR estimates were 96.1%, 89.8%, and 88.4%. Left ventricular ejection fraction ≤ 30% and chronic lung disease were associated both with ViV-TAVI selection (OR: 8.04, 95% CI: 2.16–29.92 and OR: 3.25, 95% CI: 1.53–6.92, respectively) and with all-cause mortality after redo-SAVR (HR: 15.70, 95% CI: 2.49–67.14 and HR: 4.23, 95% CI: 1.53–13.14, respectively). Conclusion In this Dutch observational registry, ViV-TAVI was predominantly selected for patients with a higher-risk clinical phenotype, while redo-SAVR was more often used in lower-risk reintervention candidates and showed higher observed long-term survival. These data describe contemporary treatment selection and prognosis but do not establish comparative superiority of either strategy.
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Kostea et al. (2026) conducted a cohort in Failed surgical aortic bioprostheses (n=345). Valve-in-valve transcatheter aortic valve implantation (ViV-TAVI) vs. Redo surgical aortic valve replacement (redo-SAVR) was evaluated on All-cause survival at 4 years. ViV-TAVI was predominantly selected for higher-risk patients and yielded a 74.4% 4-year survival, while redo-SAVR was used in lower-risk candidates and showed an 88.4% 4-year survival.
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