Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis
In recent years, the number of patients with chronic renal failure (CRF) has increased. For the treatment of these patients, hemodialysis is performed. Arteriovenous fistula (AVF) is an access that provides continuous and longterm treatment, however, failure in maturation of the AVF and thrombosis...
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ri-123456789-501402022-12-14T11:59:44Z Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis Santos, Alexsandra Tome dos Bessa, Kleiber Lima de Santos, Willyam Brito de Almeida Rangel, Jonhattan Ferreira FAV Anastomotic width Anastomotic length Energy dissipation Pressure drop In recent years, the number of patients with chronic renal failure (CRF) has increased. For the treatment of these patients, hemodialysis is performed. Arteriovenous fistula (AVF) is an access that provides continuous and longterm treatment, however, failure in maturation of the AVF and thrombosis in mature fistulas has been the main cause of morbidity and mortality in hemodialysis patients. This work aims to analyze the pressure field in a rigid wall arteriovenous fistula with variation in the anastomotic area, trying to establish a relationship between pathological regions and pressure values. From the computational modeling and 3D printing, three AVFs were made with variation in the anastomotic area, the anastomosis width (W) was fixed at 4 mm while the anastomosis length value (L) was varied by 5 mm, 6 mm and 7 mm, resulting in a cross-sectional area (AST) of 15.7 mm², 18.8 mm² and 22.0 mm² respectively. From the results obtained, it was observed that the variation in the size of the anastomosis considerably influences the pressures downstream of the anastomosis, with greater energy dissipation the shorter the anastomosis length. 2022-12-14T11:59:43Z 2022-12-14T11:59:43Z 2022-11-22 bachelorThesis SANTOS, Alexsandra Tome dos .Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis. 2022. 8 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Mecânica) - Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2022. https://repositorio.ufrn.br/handle/123456789/50140 en application/pdf Universidade Federal do Rio Grande do Norte Brasil UFRN Engenharia Mecânica Centro de Tecnologia |
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RI - UFRN |
| language |
English |
| topic |
FAV Anastomotic width Anastomotic length Energy dissipation Pressure drop |
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FAV Anastomotic width Anastomotic length Energy dissipation Pressure drop Santos, Alexsandra Tome dos Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| description |
In recent years, the number of patients with chronic renal failure (CRF) has increased. For the treatment of
these patients, hemodialysis is performed. Arteriovenous fistula (AVF) is an access that provides continuous and longterm treatment, however, failure in maturation of the AVF and thrombosis in mature fistulas has been the main cause of morbidity and mortality in hemodialysis patients. This work aims to analyze the pressure field in a rigid wall arteriovenous fistula with variation in the anastomotic area, trying to establish a relationship between pathological regions and pressure values. From the computational modeling and 3D printing, three AVFs were made with variation in the anastomotic area, the anastomosis width (W) was fixed at 4 mm while the anastomosis length value (L) was varied by 5 mm, 6 mm and 7 mm, resulting in a cross-sectional area (AST) of 15.7 mm², 18.8 mm² and 22.0 mm² respectively. From the results obtained, it was observed that the variation in the size of the anastomosis considerably influences the pressures downstream of the anastomosis, with greater energy dissipation the shorter the anastomosis length. |
| author2 |
Bessa, Kleiber Lima de |
| author_facet |
Bessa, Kleiber Lima de Santos, Alexsandra Tome dos |
| format |
bachelorThesis |
| author |
Santos, Alexsandra Tome dos |
| author_sort |
Santos, Alexsandra Tome dos |
| title |
Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| title_short |
Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| title_full |
Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| title_fullStr |
Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| title_full_unstemmed |
Analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| title_sort |
analysis of the pressure field in rigid arteriovenous fistula with variation in the area of the anastomosis |
| publisher |
Universidade Federal do Rio Grande do Norte |
| publishDate |
2022 |
| url |
https://repositorio.ufrn.br/handle/123456789/50140 |
| work_keys_str_mv |
AT santosalexsandratomedos analysisofthepressurefieldinrigidarteriovenousfistulawithvariationintheareaoftheanastomosis |
| _version_ |
1773963694406893568 |