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Karavaĭkin P.A.

Petrovsky Russian Research Center of Surgery;
Sechenov First Moscow State Medical University

Liogky A.A.

Marchuk Institute of Numerical Mathematics

Danilov A.A.

Sechenov First Moscow State Medical University;
Marchuk Institute of Numerical Mathematics;
Moscow Institute of Physics and Technology

Salamatova V.Yu.

Sechenov First Moscow State Medical University;
Marchuk Institute of Numerical Mathematics

Kulichkin A.S.

Petrovsky Russian Scientific Center of Surgery

Numerical assessment of aortic valve coaptation after neo-cuspidation procedure

Authors:

Karavaĭkin P.A., Liogky A.A., Danilov A.A., Salamatova V.Yu., Kulichkin A.S.

More about the authors

Journal: Russian Journal of Cardiology and Cardiovascular Surgery. 2022;15(4): 369‑376

DOI: 10.17116/kardio202215041369

Read: 2171 times

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Table of contents

NUMERICAL ASSESSMENT OF AORTIC VALVE COAPTATION AFTER NEO-CUSPIDATION PROCEDURE
NUMERICAL ASSESSMENT OF AORTIC VALVE COAPTATION AFTER NEO-CUSPIDATION PROCEDURE

To cite this article:

Karavaĭkin PA, Liogky AA, Danilov AA, Salamatova VYu, Kulichkin AS. Numerical assessment of aortic valve coaptation after neo-cuspidation procedure. Russian Journal of Cardiology and Cardiovascular Surgery. 2022;15(4):369‑376. (In Russ.)
https://doi.org/10.17116/kardio202215041369

Подписка 2026 Кардиология и сердечно-сосудистая хирургия (Russian Journal of Cardiology and Cardiovascular Surgery)
МСФ на ЯМ
Использование инфографики авторами научных работ
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Abstract:

OBJECTIVE

To create a mathematical model of a closed aortic valve after neo-cuspidation and compare the valve closure parameters with experimental data.

MATERIAL AND METHODS

The study was carried out on a pig heart. Contrast-enhanced computed tomography of aortic root was performed. Aortic valve neo-cuspidation (Ozaki procedure) was carried out in experiment. Valve closure parameters were measured. We also developed the mathematical model of a closed aortic valve and analyzed its parameters.

RESULTS

The following experimental and mathematical results were obtained: central coaptation length of the left coronary leaflet 10.7 and 11.1 mm, coaptation length of the right coronary leaflet 15.5 and 12.2 mm, non-coronary leaflet 11.6 and 9.6 mm; maximum coaptation length to the left of the center of the left coronary leaflet 15.2 and 18.9 mm, right coronary leaflet 15.5 and 18.4 mm, non-coronary leaflet 12.6 and 14.2 mm; maximum coaptation length to the right of the center of the left coronary leaflet 12.7 and 13.8 mm, right coronary leaflet 17.4 and 19.2 mm, non-coronary leaflet 15.5 and 18.4 mm; mean lateral length of coaptation of the left coronary leaflet 13.9 and 16.4 mm, right coronary leaflet 16.5 and 18.8 mm, non-coronary leaflet 14.1 and 16.3 mm; left coronary leaflet coaptation area 431.0 and 457.4 mm2, right coronary leaflet coaptation area 452.8 and 469.9 mm2, non-coronary leaflet coaptation area 401.2 and 412.1 mm2, total coaptation area 1285.0 and 1339.5 mm2; mean effective height 13.4 and 16.5 mm; billowing depth of the left coronary leaflet 3.6 and 3.5 mm, right coronary leaflet 4.6 and 1.8 mm, non-coronary leaflet 3.7 and 3.4 mm, respectively.

CONCLUSION

We obtained similar experimental and mathematical data. Aortic neovalve demonstrates adequate closure function. However, dimensions of neo-cusps, coaptation length and area are excessive that can have negative consequences.

Keywords:

aortic valve
coaptation
neo-cuspidation
Ozaki procedure
mathematical modeling

Authors:

Karavaĭkin P.A.

Petrovsky Russian Research Center of Surgery;
Sechenov First Moscow State Medical University

Liogky A.A.

Marchuk Institute of Numerical Mathematics

Danilov A.A.

Sechenov First Moscow State Medical University;
Marchuk Institute of Numerical Mathematics;
Moscow Institute of Physics and Technology

Salamatova V.Yu.

Sechenov First Moscow State Medical University;
Marchuk Institute of Numerical Mathematics

Kulichkin A.S.

Petrovsky Russian Scientific Center of Surgery

Received:

30.12.2021

Accepted:

17.01.2022

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