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The aortic wrap: an experimental and computational investigation of a device-based method for reduction of arterial pressure

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thesis
posted on 28.03.2022, 02:47 by Francesca Maria Giudici
Age-related aortic stiffening is a major determinant of isolated systolic hypertension (ISH) and is mainly due to mechanical fatigue-induced deterioration of elastin in the aortic wall. The aortic wrap (AW), a proposed method to restore aortic distensibility, is a highly distensible implantable device secured around the ascending aorta (AA): by decreasing the AA diameter (D), the pulsatile load is transferred from the collapsed AA wall to the AW, thus enabling aortic pulse pressure (PP) reduction. This thesis aims to evaluate the efficacy of the AW in increasing distensibility and decreasing PP and systolic pressure.

History

Table of Contents

Chapter 1. Preface -- Chapter 2. Background -- Chapter 3. Simulation of reduction of proximal aortic stiffness by an elastic wrap and effects on pulse pressure -- Chapter 4. In vitro investigation of the effects of the aortic wrap on distensibility of a rigid cylindrical model of the aorta -- Chapter 5. In vitro investigation of the effects of the aortic wrap on pressure and impedance in a siliconl model of the arterial circulation -- Chapter 6. Computational fluid dynamic study of the effects on velocity patterns and wall shear stress of the ascending aortic diameter reduction induced by wrapping -- Chapter 7. Conclusions.

Notes

Bibliography: pages 125-133 Theoretical thesis.

Awarding Institution

Macquarie University

Degree Type

Thesis PhD

Degree

PhD, Macquarie University, Faculty of Human Sciences, Australian School of Advanced Medicine

Department, Centre or School

Australian School of Advanced Medicine

Year of Award

2014

Principal Supervisor

Alberto Avolio

Additional Supervisor 1

Michael O'Rourke

Rights

Copyright Francesca Maria Giudici 2014. Copyright disclaimer: http://mq.edu.au/library/copyright

Language

English

Extent

1 online resource (xx, 133 pages) illustrations

Former Identifiers

mq:71427 http://hdl.handle.net/1959.14/1274233