Vol. 21 No. 4 (2017)
ACQUIRED HEART DISEASES

Deformational dynamics of the aortic root in elderly patients after aortic valve replacement with biological prostheses

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  • D. Demidov,
  • D. Astaspov,
  • A. Bogachev-Prokophiev,
  • S. Zheleznev,
  • A. Karaskov
D. Demidov
Meshalkin National Medical Research Center, Ministry of Health of Russian Federation, Novosibirsk, Russian Federation
Bio
D. Astaspov
Meshalkin National Medical Research Center, Ministry of Health of Russian Federation, Novosibirsk, Russian Federation
A. Bogachev-Prokophiev
Meshalkin National Medical Research Center, Ministry of Health of Russian Federation, Novosibirsk, Russian Federation
S. Zheleznev
Meshalkin National Medical Research Center, Ministry of Health of Russian Federation, Novosibirsk, Russian Federation
A. Karaskov
Meshalkin National Medical Research Center, Ministry of Health of Russian Federation, Novosibirsk, Russian Federation
DOI: https://doi.org/10.21688/1681-3472-2017-4-31-37

Published 2017-12-28

Keywords

  • aortic valve disease,
  • aortic valve replacement,
  • biological prosthesis,
  • heart failure

How to Cite

Demidov, D., Astaspov, D., Bogachev-Prokophiev, A., Zheleznev, S., & Karaskov, A. (2017). Deformational dynamics of the aortic root in elderly patients after aortic valve replacement with biological prostheses. Patologiya Krovoobrashcheniya I Kardiokhirurgiya, 21(4), 31–37. https://doi.org/10.21688/1681-3472-2017-4-31-37

Copyright (c) 2017 Demidov D.P., Astaspov D.A., Bogachev-Prokophiev A.V., Zheleznev S.I., Karaskov A.M.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Aim. The study was designed to comparatively assess dynamic changes of the aortic root structures depending on a phase of the cardiac cycle in patients with degenerative aortic stenosis, who underwent aortic valve replacement with different types of biological prostheses.
Methods. This prospective parallel controlled randomized trial study was performed at Meshalkin National Medical Research Center over a period from 2011 to 2015. The inclusion criteria were severe aortic stenosis and patients’ age older than 65 years. 114 patients were randomized 1:1 in two groups: group I included 57 patients with stentless biological prostheses, while group II (control one) consisted of 57 patients with stented xenopericardial prostheses. The average age was 71 [66; 74] and 72 [69; 77] for the first and second groups, respectively (p = 0.054). All patients underwent aortic valve replacement. The operation was performed under standard normothermic cardiopulmonary bypass. The diameter of the implanted prostheses was 25 mm [24; 26] and 23 mm [21; 23] for the first and second groups, respectively (p = 0.375). An ECG-synchronized CT study of the aortic root was carried out in the postoperative period.
Results. An intergroup systolic/diastolic difference in the values of the cross-sectional area of the aortic root at all levels was observed in patients with stentless bioprostheses, while the control group patients (with stented bioprostheses) had no such difference at the levels of the left ventricle output tract and the fibrous ring of the aortic valve.
Conclusion. A stentless design of bioprostheses retains the deformational and elastic properties of the aortic root in elderly patients with aortic valve stenosis after surgical treatment.

Received 5 December 2017. Revised 12 December 2017. Accepted 15 December 2017.

Funding: The study did not have sponsorship.

Conflict of interest: The authors declare no conflict of interest.

Author contributions
Conception and study design: D.P. Demidov, D.A. Astapov, A.V. Bogachev-Prokophiev
Data collection and analysis: D.P. Demidov
Drafting the article: D.P. Demidov
Critical revision of the article: D.A. Astapov, A.V. Bogachev-Prokophiev
Final approval of the version to be published: D.A. Astapov, A.V. Bogachev-Prokophiev, S.I. Zheleznev, A.M. Karaskov

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