2020
DOI: 10.3390/bioengineering7030090
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Hemodynamic Performance of Dysfunctional Prosthetic Heart Valve with the Concomitant Presence of Subaortic Stenosis: In Silico Study

Abstract: The prosthetic heart valve is vulnerable to dysfunction after surgery, thus a frequent assessment is required. Doppler electrocardiography and its quantitative parameters are commonly used to assess the performance of the prosthetic heart valves and provide detailed information on the interaction between the heart chambers and related prosthetic valves, allowing early detection of complications. However, in the case of the presence of subaortic stenosis, the accuracy of Doppler has not been fully investigated … Show more

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Cited by 6 publications
(7 citation statements)
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“…The Doppler Velocity Index ( DVI ) is the ratio of the peak velocity of the left ventricle outflow tract (LVOT) to the transvalue peak velocity [ 28 ]. where is inlet velocity, is maximum velocity within the MHV.…”
Section: Resultsmentioning
confidence: 99%
“…The Doppler Velocity Index ( DVI ) is the ratio of the peak velocity of the left ventricle outflow tract (LVOT) to the transvalue peak velocity [ 28 ]. where is inlet velocity, is maximum velocity within the MHV.…”
Section: Resultsmentioning
confidence: 99%
“…To calculate flow fields and hemodynamic parameters, blood flow in the iliac veins assumed incompressible Newtonian flow [ 25 ]. Values for blood fluid density and dynamic viscosity (1050 kg/m 3 and 0.003 kg/m/s, respectively) were used according to previous studies [ 32 , 33 , 34 , 35 ]. As in previous CFD analyses, the model assumed venous wall rigidity [ 34 ].…”
Section: Methodsmentioning
confidence: 99%
“…Values for blood fluid density and dynamic viscosity (1050 kg/m 3 and 0.003 kg/m/s, respectively) were used according to previous studies [ 32 , 33 , 34 , 35 ]. As in previous CFD analyses, the model assumed venous wall rigidity [ 34 ]. The inlet blood velocities of the left (VL) and right (VR) iliac veins and inferior vena cava (VI) were 0.03 m/s, 0.12 m/s, and 0.06 m/s, respectively, determined by intravenous digital subtraction angiography (IVDSA) as reported previously [ 36 , 37 ].…”
Section: Methodsmentioning
confidence: 99%
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“…CFD simulation methods also provide excellent assistance in the design optimization of public health devices. The blood flow behavior in a bileaflet mechanical heart valve was investigated based on a finite volume method to improve flow performance 29 . Sommerfeld et al 30 reviewed numerical simulations of dry powder inhalers and summed up the role of CFD simulation in the optimization of dry powder inhaler flow channel.…”
Section: Introductionmentioning
confidence: 99%