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COMPUTATIONAL FLUID DYNAMICS INVESTIGATION OF THE ORIENTATION OF A PEDIATRIC LEFT VENTRICLE ASSIST DEVICE CANNULA TO REDUCE STROKE EVENTS

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Date Issued:
2012
Abstract/Description:
Ventricle Assist Devices (VADs), which are typically either axial or centrifugal flow pumps implanted on the aortic arch, have been used to support patients who are awaiting cardiac transplantation. Success of the apparatus in the short term has led to long term use. Despite anticoagulation measures, blood clots (thrombi) have been known to form in the device itself or inside of the heart. The Ventricle Assist Devices supply blood flow via a conduit (cannula) implanted on the ascending aorta. Currently, the implantation angle of the VAD cannula is not taken into consideration. Since the VADs supply a significant amount of blood flow to the aorta, the implantation angle can greatly affect the trajectory of the formed thrombi as well as the cardiac flow field inside of the aortic arch. This study aims to vary the implantation angle of a pediatric Left Ventricle Assist Device (LVAD) through a series of computational fluid dynamics (CFD) software simulations focusing on the aortic arch and its branching arteries of a 20 kg pediatric patient in order to reduce the occurrence of stroke.
Title: COMPUTATIONAL FLUID DYNAMICS INVESTIGATION OF THE ORIENTATION OF A PEDIATRIC LEFT VENTRICLE ASSIST DEVICE CANNULA TO REDUCE STROKE EVENTS.
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Name(s): Guimond, Stephen, Author
Kassab, Alain, Committee Chair
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2012
Publisher: University of Central Florida
Language(s): English
Abstract/Description: Ventricle Assist Devices (VADs), which are typically either axial or centrifugal flow pumps implanted on the aortic arch, have been used to support patients who are awaiting cardiac transplantation. Success of the apparatus in the short term has led to long term use. Despite anticoagulation measures, blood clots (thrombi) have been known to form in the device itself or inside of the heart. The Ventricle Assist Devices supply blood flow via a conduit (cannula) implanted on the ascending aorta. Currently, the implantation angle of the VAD cannula is not taken into consideration. Since the VADs supply a significant amount of blood flow to the aorta, the implantation angle can greatly affect the trajectory of the formed thrombi as well as the cardiac flow field inside of the aortic arch. This study aims to vary the implantation angle of a pediatric Left Ventricle Assist Device (LVAD) through a series of computational fluid dynamics (CFD) software simulations focusing on the aortic arch and its branching arteries of a 20 kg pediatric patient in order to reduce the occurrence of stroke.
Identifier: CFH0004305 (IID), ucf:45044 (fedora)
Note(s): 2012-12-01
B.S.
Engineering and Computer Science, Dept. of Mechanical, Materials and Aerospace Engineering
Bachelors
This record was generated from author submitted information.
Subject(s): left ventricle assist device
LVAD
computational fluid dynamics
CFD
stroke
thrombus
thrombi
blood clot
aortic arch
cannula
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFH0004305
Restrictions on Access: public
Host Institution: UCF

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