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Communication Dans Un Congrès Année : 2021

A CFD based analysis of the influence of IC angulation on blood stagnation for Left Ventricular Assist Device implantation

Résumé

Implantation of a left ventricular assist device is associated with serious thrombogenic complications. Anecdotal evidence suggests that angulation of the inflow cannula (IC) may increase the risk of blood coagulation. In this sense, we are interested in the efficiency of the CFD in the development of a marker capable of analyzing blood stagnation related to an IC angulation. A 2D geometric model inspired by clinical data has been proposed. It takes into account the ventricular shape as well as the IC angulation. The combination of the investigated features (vortex, blood velocity and virtual ink concentration) is used to assess the risk of blood stagnation. We observe an influence of IC angulation on blood stagnation risk which values are on average 2.5 higher among patients with pump thrombosis. Obtained results seem to be consistent with the clinical outcome.
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Dates et versions

hal-03366258 , version 1 (05-10-2021)

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Amal Ben Abid, Valéry Morgenthaler, Marie Aymami, Erwan Flecher, Pascal Haigron. A CFD based analysis of the influence of IC angulation on blood stagnation for Left Ventricular Assist Device implantation. IEEE-EMBS Conference on Biomedical Engineering and Sciences (IECBES) - Leading Modern Healthcare Technology Enhancing Wellness, Mar 2021, Langkawi Island, Malaysia. ⟨10.1109/IECBES48179.2021.9398845⟩. ⟨hal-03366258⟩
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