Immediate outcomes of transcatheter aortic valve implantation in patients with horizontal aorta
Published 2023-06-30
Keywords
- Aorta,
- Aortic Valve Insufficiency,
- Aortic Valve Stenosis,
- Bioprosthesis,
- Myocardium
- Retrospective Studies,
- Transcatheter Aortic Valve Replacement ...More
How to Cite
Copyright (c) 2023 Baranov A.A., Krestyaninov O.V., Badoian A.G., Khelimskii D.A., Manukian S.N., Tsydenova A.Yu., Makhmudov M.A.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Background: Transcatheter aortic valve implantation (TAVI) is an effective and safe procedure for severe aortic stenosis. Increased aortic root angulation is an important anatomical feature that may cause technical difficulties and negatively affect immediate and long-term outcomes.
Objective: To evaluate immediate outcomes of TAVI in patients with increased aortic root angulation.
Methods: Our retrospective single-center study included 412 patients with severe aortic stenosis who underwent TAVI using self-expanding bioprostheses from 2015 to 2022. Patients with aortic root angulation ≥ 49° were included in group 1 (n = 200), and those with aortic root angulation < 49° comprised group 2 (n = 212).
Results: The mean age of the patients was 75.2 ± 7.2 years. In a subgroup with the first-generation CoreValve prosthesis and a ≥ 49° angle, we observed moderate aortic regurgitation significantly more often (7.4% vs 0.0%, P = .010) and technical success significantly less often (90.1% vs 98.9%, P = .010) compared with a similar subgroup with a < 49° angle. In subgroups with CoreValve Evolute R and ACURATE neo prostheses, there were no significant differences in terms of the mentioned parameters. Independent predictors of technical failure were the aortic root angle [OR for each degree increase: 0.44, 95% CI: 0.30-0.63, P < .001], no postdilation [OR: 5.0, 95% CI: 1.33-20.00, P = .074], indexed mass of the left ventricular myocardium [OR: 1.02, 95% CI: 1.01-1.03, P = .003], and higher implantation relative to the aortic annulus [OR for every 1 mm decrease in implantation depth: 0.44, 95% CI: 0.30-0.63, P < .001].
Conclusion: Increased aortic angulation ≥ 49° negatively affected the technical success of TAVI only in patients with the first-generation CoreValve prostheses. Independent predictors of technical failure in TAVI were the aortic root angle, no postdilation, indexed mass of the left ventricular myocardium, and higher implantation relative to the aortic annulus.
Received 9 January 2023. Revised 10 May 2023. Accepted 30 May 2023.
Funding: The study did not have sponsorship.
Conflict of interest: The authors declare no conflict of interest.
Contribution of the authors
Conception and study design: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian
Data collection and analysis: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian
Statistical analysis: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian
Drafting the article: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian, S.N. Manukian, A.Yu. Tsydenova,
M.A. Makhmudov
Critical revision of the article: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian, S.N. Manukian, A.Yu. Tsydenova, M.A. Makhmudov
Final approval of the version to be published: A.A. Baranov, O.V. Krestyaninov, D.A. Khelimskii, A.G. Badoian, S.N. Manukian, A.Yu. Tsydenova, M.A. Makhmudov
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