Summary
Background
The aim of this study was to compare short-term and mid-term outcomes in low-risk octogenarian population treated with transfemoral transcatheter aortic valve implantation (tf-TAVI) or minimally invasive aortic valve replacement (mini-AVR) for severe aortic stenosis.
Methods
In this single-center, retrospective cohort study we gathered data on low-risk (Society of Thoracic Surgeons [STS] score < 4%) octogenarians before and after tf-TAVI and mini-AVR performed between January 2013 and May 2019; follow-up was completed in May 2022. Short-term outcomes were hospital length of stay, in-hospital all-cause mortality and other major postoperative outcomes. Mid-term clinical outcomes were 1‑year and 3‑year all-cause mortality. Propensity score-based matching was performed.
Results
In total 106 patients were matched, resulting in 53 pairs. In-hospital complications were similar between the matched groups of patients with the exception of mild and moderate paravalvular leak (mini-AVR vs. tf-TAVI: mild PVL: 3.8% vs. 45.3%, p < 0.001; moderate PVL: 0% vs. 3.8%, p = 0.4952) and of postprocedural acute kidney injury that was more frequent in mini-AVR group (mini-AVR vs. tf-TAVI: 22.6% vs. 5.7%; p = 0.023). Hospital length of stay (p = 0.239) and in-hospital mortality (p = 0.495) did not differ between groups. The 1-year and 3‑year all-cause mortality Kaplan-Meier estimates were similar between mini-AVR and tf-TAVI.
Conclusion
In the present study on low-risk octogenarians, transfemoral TAVI and minimally invasive AVR showed comparable short-term and mid-term results. Both procedures are deemed safe and effective. Larger RCTs will be required to determine which low-risk patients will benefit most from TAVI.
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Conception and design of the study: TK, NL and MB. Data collection: TK, ST and AK. Analysis and interpretation: TK and MJ. Drafting or critical review of the article: TK, NL, and MB. All authors read and approved the final manuscript.
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T. Kolar, M. Bunc, M. Jelenc, S. Terseglav, A. Kotnik, and N. Lakič declare that they have no competing interests.
Ethical standards
This study was performed in accordance with the Declaration of Helsinki. Approval to conduct the study was obtained from the Ethics Committee of the Republic of Slovenia (Protocol number—0120-318/2019/5).
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The dataset used and analyzed during the current study is available from the corresponding author on reasonable request.
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Kolar, T., Bunc, M., Jelenc, M. et al. Minimally invasive surgical aortic valve replacement versus transfemoral transcatheter aortic valve implantation in low-risk octogenarians. Wien Klin Wochenschr 135, 703–711 (2023). https://doi.org/10.1007/s00508-022-02094-z
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DOI: https://doi.org/10.1007/s00508-022-02094-z