Análise da influência do módulo de elasticidade nos parâmetros hemodinâmicos

Abstract

From 1991 until 2019, the representativeness of deaths caused by cardiovascular diseases has remained in the range of 30%. Even with technological advances, heart problems still kill the most people around the world and most of those affected are not aware of it. The present work sought to analyze the effect caused by the variation of elastic modulus in of the aorta artery wall and its main derivations, using computational fluid dynamics. 3 kinds of situations were used for analysis, where one of them assumes the rigid artery wall, while the others vary the elastic modulus (average values for groups of normotensive and hypertensive people). It was possible to notice that the systolic pressure values change considerably between the evaluated situations, reaching a difference of up to 40% in the maximum evaluated value. As for the values obtained for the minimum pressures, it was noticed that this does not suffer great influence on the variation of the el. For the volumetric flow values, cases were noted in which the values for the flow were negative, consequently the fluid reflux occurred. Although complex, this study was able to satisfactorily evaluate the effect caused by the variation in the modulus of elasticity.