Evidence map›Paper›PMID 41573305›Full record

ArticleFrontiers in bioengineering and biotechnology2025

Mechano-electrical-fluid interaction left-ventricle model for numerical evaluation of aortic valve hemodynamics.

Nikita Pil, Alex G Kuchumov, Fulufhelo Nemavhola, Thanyani Pandelani, Truong Sang Ha

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Article in Frontiers in bioengineering and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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3 · Its place in the literature

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2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Nikita PilBiofluids Laboratory, Perm National Research Polytechnic University, Perm, Russia.
Alex G KuchumovBiofluids Laboratory, Perm National Research Polytechnic University, Perm, Russia.
Fulufhelo NemavholaDepartment of Mechanical Engineering, Faculty of Engineering and the Built Environment, Durban University of Technology, Durban, South Africa.
Thanyani PandelaniDepartment of Mechanical, Bioresources and Biomedical Engineering, School of Engineering, College of Science, Engineering and Technology, University of South Africa, Pretoria, South Africa.
Truong Sang HaDepartment of Mechanical Engineering, Le Quy Don Technical University, Hanoi, Vietnam.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Objective: Aortic valve simulation has a crucial meaning for clinical applications like the prediction of transcatheter aortic valve implantation or the Ozaki procedure. One of the main aspects is the inflow boundary condition because it has a strong effect on hemodynamic flow simulation results. Most researchers adopt a 2-D profile derived from ultrasound measurements for 3-D fluid-structure interaction simulations that do not take into account several physiological effects. Methods: A model including left ventricle contraction and blood flow in the aorta segment with aortic valve leaflets was developed. A mechano-electrical-fluidic interaction model of the left ventricle was developed to assess a 3-D profile of blood passing to the aortic valve. The effect of complex fiber architecture in the left ventricle geometry model was taken into account. After that, this profile was set as an inlet in the aorta segments to perform 2-way FSI blood flow for numerical evaluation of aortic valve hemodynamics. Results: It was shown that during the cardiac cycle, the left ventricle's electric potential varies between -80 mV and 20 mV. At the systolic peak, the maximum deformations of the left ventricle range from 38% to 60%. The trajectories of the left ventricle apex and torsion angle were derived. The displacement of the myocardial tissue does not differ significantly among the cases, ranging from 15 to 20 mm, with the greatest shift occurring in the opposite direction. Flow velocities were up to 1.8 m·s Conclusion: The findings suggest that ventricular geometry significantly influences the stress distribution in the aortic valve leaflets and the flow velocities, consistent with previous computational studies. Understanding these relationships is crucial for predicting valve performance and identifying potential areas of high stress that may contribute to valvular pathologies such as calcification and leaflet fatigue.

Indexed as

aortic valveelectrophysiologyfluid-structure interaction (FSI)left ventriclemechano-electrical-fluid interaction model

Identifiers

PMID41573305
PMCPMC12819714

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