Influence of a commercial antithrombotic filter on the caval blood flow during neutra and valsalva maneuver
Nicolas, M. ; Lucea, B. ; Laborda García, Alicia (Universidad de Zaragoza) ; Peña, E. (Universidad de Zaragoza) ; Gregorio, M.A. de (Universidad de Zaragoza) ; Martinez, M.A. (Universidad de Zaragoza) ; Malve, M.
Resumen: Anticoagulants are the treatment of choice for pulmonary embolism. When these fail or are contraindicated, vena cava filters are effective devices for preventing clots from the legs from migrating to the lung. Many uncertainties exist when a filter is inserted, especially during physiological activity such as normal breathing and the Valsalva maneuver. These activities are often connected with filter migration and vena cava damage due to the various related vein geometrical configurations. In this work, we analyzed the response of the vena cava during normal breathing and Valsalva maneuver, for a healthy vena cava and after insertion of a commercial Günther-Tulip® filter. Validated computational fluid dynamics (CFD) and patient specific data are used for analyzing blood flow inside the vena cava during these maneuvers. While during normal breathing, the vena cava flow can be considered almost stationary with a very low pressure gradient, during Valsalva the extravascular pressure compresses the vena cava resulting in a drastic reduction of the vein section, a global flow decrease through the cava but increasing the velocity magnitude. This change in the section is altered by the presence of the filter which forces the section of the vena cava before the renal veins to keep open. The effect of the presence of the filter is investigated during these maneuvers showing changes in wall shear stress and velocity patterns.
Idioma: Inglés
DOI: 10.1115/1.4035983
Año: 2017
Publicado en: JOURNAL OF MEDICAL DEVICES-TRANSACTIONS OF THE ASME 11, 3 (2017), 031002 [11 pp.]
ISSN: 1932-6181
Factor impacto JCR: 0.412 (2017)
Categ. JCR: ENGINEERING, BIOMEDICAL rank: 77 / 78 = 0.987 (2017) - Q4 - T3
Factor impacto SCIMAGO: 0.223 - Medicine (miscellaneous) (Q3) - Biomedical Engineering (Q3)
Financiación: info:eu-repo/grantAgreement/ES/DGA/B21-GITMI
Financiación: info:eu-repo/grantAgreement/ES/ISCIII/PI08-1424
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2010-20746-C03-01
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2013-44391-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2016-76630-C2-1-R
Tipo y forma: Article (PrePrint)
Área (Departamento): Área Radiol. y Medicina Física (Dpto. Pediatría Radiol.Med.Fís)
Área (Departamento): Área Mec.Med.Cont. y Teor.Est. (Dpto. Ingeniería Mecánica)
Área (Departamento): Área Medicina y Cirugía Animal (Dpto. Patología Animal)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2019-07-09-12:36:04)
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Idioma: Inglés
DOI: 10.1115/1.4035983
Año: 2017
Publicado en: JOURNAL OF MEDICAL DEVICES-TRANSACTIONS OF THE ASME 11, 3 (2017), 031002 [11 pp.]
ISSN: 1932-6181
Factor impacto JCR: 0.412 (2017)
Categ. JCR: ENGINEERING, BIOMEDICAL rank: 77 / 78 = 0.987 (2017) - Q4 - T3
Factor impacto SCIMAGO: 0.223 - Medicine (miscellaneous) (Q3) - Biomedical Engineering (Q3)
Financiación: info:eu-repo/grantAgreement/ES/DGA/B21-GITMI
Financiación: info:eu-repo/grantAgreement/ES/ISCIII/PI08-1424
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2010-20746-C03-01
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2013-44391-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DPI2016-76630-C2-1-R
Tipo y forma: Article (PrePrint)
Área (Departamento): Área Radiol. y Medicina Física (Dpto. Pediatría Radiol.Med.Fís)
Área (Departamento): Área Mec.Med.Cont. y Teor.Est. (Dpto. Ingeniería Mecánica)
Área (Departamento): Área Medicina y Cirugía Animal (Dpto. Patología Animal)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2019-07-09-12:36:04)
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Este artículo se encuentra en las siguientes colecciones:
Articles > Artículos por área > Mec. de Medios Contínuos y Teor. de Estructuras
Articles > Artículos por área > Radiología y Medicina Física
Articles > Artículos por área > Medicina y Cirugía Animal
Record created 2019-03-14, last modified 2019-07-09