Hemodynamics in the Aortic Valve with Stenosis

High prevalence of aortic valve pathologies has induced a growing need for information on biofluid mechanics analysis for the last couple of decades : these information should be available to cardiac surgeons and in vivo real time 3D echocardiography, including a detailed biophysical properties description. During ventricular systole, pressure rises in the left ventricle. When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta. In this paper, researches based on the biophysical determinants of blood flow in the stenosed aortic valve has been carried out using numerical and dynamic analysis. By and large, these approaches have been empirically derived with little theoretic justification for their application. Using the biochemical and biophysical mechanisms of the heart, this research shows the impact of aortic stenosis (AS) on the different components of left atrial (LA) function.