Izvestiya of Saratov University.

Mathematics. Mechanics. Informatics

ISSN 1816-9791 (Print)
ISSN 2541-9005 (Online)


For citation:

Khairulin A. R., Rakisheva I. O., Kuchumov A. G., Golub M. V., Shekhmametyev R. M., Lazarkov P. V. Investigation of the influence of intersystem shunt characteristics on hemodynamic parameters and oxygen distribution. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, 2024, vol. 24, iss. 2, pp. 254-274. DOI: 10.18500/1816-9791-2024-24-2-254-274, EDN: INFKKR

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Published online: 
31.05.2024
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(downloads: 42)
Language: 
Russian
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Article type: 
Article
UDC: 
517.98
EDN: 
INFKKR

Investigation of the influence of intersystem shunt characteristics on hemodynamic parameters and oxygen distribution

Autors: 
Khairulin Alexander Rafaelovich, Perm National Research Polytechnic University
Rakisheva Irina O., Perm National Research Polytechnic University
Kuchumov Alexei Gennad'evich, Perm National Research Polytechnic University
Golub Mikhail Vladimirovich, Kuban State University
Shekhmametyev Roman M., Federal Center of Cardiovascular Surgery named after S. G. Sukhanov
Lazarkov Petr V., Federal Center of Cardiovascular Surgery named after S. G. Sukhanov
Abstract: 

Various intersystem shunts are widely used methods of treatment of newborns with congenital heart disease and reduced pulmonary blood flow. Shunt placement is associated with a high risk of postoperative complications and mortality. It is possible to predict the development of some complications using mathematical modeling methods and adjust the treatment. In this study we investigated the system ''aorta – shunt – pulmonary artery''. Three kinds of shunt placement with three different diameters for three patients have been analyzed. To solve hemodynamic problems, 27 cases were investigated using the common hemodynamic indices (wall shear stress, time-averaged, oscillatory shear index, relative residence time, etc.). The dependence of pulmonary artery blood flow distribution on shunt location is shown; the preferred location differs for different patient geometries. The energy loss of 4 mm diameter shunts is almost 2 times larger that of 3 mm shunts. A patient-specific approach to the treatment of each child based on objective data can significantly reduce the number of pediatric deaths and increase the effectiveness of the rehabilitation process.

Acknowledgments: 
This work was supported by the Russian Foundation for Basic Research (project No. 20-41-596005 p_NOTS_Perm Region).
References: 
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Received: 
10.12.2023
Accepted: 
10.01.2024
Published: 
31.05.2024