In Vivo Studies On Ventriculo-vascular Coupling And The Role Of Aortic Pressure Wave Morphology On Coronary Blood Flow
Funder
National Health and Medical Research Council
Funding Amount
$137,700.00
Summary
Heart disease is a leading cause of death and disability in Australia. Conditions resulting in reduced blood flow to the heart are particularly common and dangerous. Despite significant progress, we still do not understand exactly how changes in heart function and the aorta (the major artery arising from the heart) affect blood flow to the heart. This study will utilise sophisticated new techniques to look at the interactions between heart function, pressure in the aorta and coronary blood flow
Physiology Of Acute Coronary Syndromes: Focus On Microvascular Dysfunction
Funder
National Health and Medical Research Council
Funding Amount
$90,029.00
Summary
Heart attacks,caused by blocked coronary arteries are an important public health concern.There are patients who have a worse outcome due to damage of small blood vessels that cannot be visualised with normal testing. New blood tests and invasive technology are available that can assess these small vessels.We plan to use these techniques to observe the extent of small blood vessel damage in patients with heart attacks and hope this will lead to better understanding of heart attacks and improved t ....Heart attacks,caused by blocked coronary arteries are an important public health concern.There are patients who have a worse outcome due to damage of small blood vessels that cannot be visualised with normal testing. New blood tests and invasive technology are available that can assess these small vessels.We plan to use these techniques to observe the extent of small blood vessel damage in patients with heart attacks and hope this will lead to better understanding of heart attacks and improved treatments.Read moreRead less
Minimal Structural Strength Required In Endoluminal Devices For Aortic Aneurysms: Mechanisms Of Rupture When They Fail.
Funder
National Health and Medical Research Council
Funding Amount
$102,794.00
Summary
Aneurysmal disease is an age related phenomenon. The mean life expectancy of western populations has doubled in the last 100 years mainly because of the reduction in deaths from occlusive cardiovascular disease. Aneurysmal disease has emerged as a result of the changing pattern of diseases in the community. The impact of this work would be to improve minimally invasive, effective prophylaxis against aneurysm of the abdominal aorta since 80% of those that rupture will result in death. Endoluminal ....Aneurysmal disease is an age related phenomenon. The mean life expectancy of western populations has doubled in the last 100 years mainly because of the reduction in deaths from occlusive cardiovascular disease. Aneurysmal disease has emerged as a result of the changing pattern of diseases in the community. The impact of this work would be to improve minimally invasive, effective prophylaxis against aneurysm of the abdominal aorta since 80% of those that rupture will result in death. Endoluminal grafting provides a much less invasive procedure and provides an attractive and elegant alternative to open surgery. The general drive in this field is towards miniaturisation. The danger is that structural strengths will be compromised with early failures due to lack of strength; and late failures due to inadequate device durability. This application proposes the development of a collaborative venture with the Department of Vascular Surgery, Royal Perth Hospital, Cook R and D (WA), the Advanced Fluid Dynamics Laboratory (CSIRO, Melbourne) and Centre for Health Services Research (University of WA) to investigate the dynamic flow forces involved in aneurysms of the abdominal aorta. It combines together expertise and facilities to examine the forces acting upon endoluminal stent grafts in pulsatile high pressure environments, the impact on the design, patency, effectiveness and longer-term outcomes. The multidisciplinary team provides a comprehensive approach for this developing area of high technology surgery throughout Australia and internationally. The benefits of this study will directly influence the design and durability of the next generation of endoluminal devices and percutaneous insertions. While Australia is at the forefront of development, its current place in the market can only be maintained by further product development.Read moreRead less
Invasive Assessment Of Pulmonary Vascular Physiology - Novel Methods For Early Detection Of Pulmonary Vascular Disease
Funder
National Health and Medical Research Council
Funding Amount
$274,352.00
Summary
Pulmonary vascular disease (PVD) is a lethal condition characterised by progressive destruction of the lung blood vessels. One major problem with PVD is that diagnosis is often made very late in the illness, when the pulmonary blood pressure rises. This project aims to develop a novel method to detect the early and clinically silent phase of PVD, by assessing the lung's blood vessel reserves. Early diagnosis of PVD will enable earlier treatment thereby improving prospects for treatment.
Ultrasonic Blood Pressure Measurement On Implanted Biomedical Surfaces
Funder
National Health and Medical Research Council
Funding Amount
$170,250.00
Summary
The project would develop a prototype device reporting blood pressure on a biomedical implant surface. The device would extract data in real time from a standard ultrasound scanner that images the implant. The School of Mathematical Sciences at Monash University will be contracted to develop this ultrasound pressure sensor.
Insulin Resistance In Peripheral Artery Disease: Clinical Significance And Therapy
Funder
National Health and Medical Research Council
Funding Amount
$316,449.00
Summary
This project seeks to improve our understanding and treatment of peripheral artery disease – a condition caused by narrowing/blockages in arteries that supply the legs. Peripheral artery disease affects ~15% of adults >40 years and often causes severe, disabling leg pains during walking. Building on recent findings that peripheral artery disease shares some similar characteristics to type 2 diabetes (“insulin resistance”), a common anti-diabetes drug will be trialled as a potential new strate ....This project seeks to improve our understanding and treatment of peripheral artery disease – a condition caused by narrowing/blockages in arteries that supply the legs. Peripheral artery disease affects ~15% of adults >40 years and often causes severe, disabling leg pains during walking. Building on recent findings that peripheral artery disease shares some similar characteristics to type 2 diabetes (“insulin resistance”), a common anti-diabetes drug will be trialled as a potential new strategy to alleviate these leg pains.Read moreRead less
Voltage Dependent Calcium Channels And Vascular Function: Do Microdomains Determine Function?
Funder
National Health and Medical Research Council
Funding Amount
$597,682.00
Summary
Blood flow depends on arterial diameter which can change with contraction of muscle in the vessel wall. Calcium influx through one type of channel in the muscle cells has been considered critical, but drugs targeting these channels have not succeeded in treating the arterial spasm which occurs after stroke and head injury. Our study will investigate the existence and role of other calcium channels in brain arteries. Knowledge gained will likely lead to development of new drug targets for stroke.