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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
PRESSURE VARIATION IN REAL ARTERIOVENOUS FISTULA: EXPERIMENTAL STUDY
Submission Author:
Jonhattan Ferreira Rangel , RN
Co-Authors:
Jonhattan Ferreira Rangel, Willyam Brito de Almeida Santos, Kleiber Lima de Bessa, Thercio Costa
Presenter: Jonhattan Ferreira Rangel
doi://10.26678/ABCM.ENCIT2020.CIT20-0366
Abstract
Arteriovenous fistula (AVF), the surgical connection between an artery and a vein, is the most recommended vascular access (VA) for patients in hemodialysis treatment. Even though this type of access is well recommended, it can be affected by problems due to its construction and use. Studies show that pathophysiological problems are closely linked to flow conditions and vascular remodeling caused after the pressure short circuit due by the union between artery and vein. The present study sought to analyze the pressure conditions in vitro of an AVF, built from real data from a patient. To carry out the work, the following steps were performed: data acquisition and processing (computed tomography), manufacturing using 3D printing and experimental analysis. Values for the peak pressure at the entrance and exit of the AVF were 166.438 mmHg and 155.712 mmHg, respectively, showing a drop in the peak pressure of 10.726 mmHg, in addition to pressure values in specific regions consistent with the literature.
Keywords
Arteriovenous Fistula, pressure variation, 3D printing
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