Microvascular Function And Outcome In Patients With Acute Coronary Syndromes
Funder
National Health and Medical Research Council
Funding Amount
$79,514.00
Summary
Damage to the small vessels of the heart is a hallmark of heart attacks. Furthermore, small vessel dysfunction (MVD) is associated with a worse prognosis even in the presence of an unblocked major coronary artery following a heart attack. Using novel invasive assessments, we aim to analyse the prevalence and clinical predictors of MVD, assess the impact of MVD on short and long-term outcome after heart attack and address the impact of new treatments on MVD and heart muscle recovery.
Coronary Atherosclerosis And Its Relationship With Platelet Activation
Funder
National Health and Medical Research Council
Funding Amount
$101,039.00
Summary
Blood clots are critical to the development of heart attacks, which kill many thousands of Australians annually. Platelets are cells in the blood that play an essential role in formation of blood clots, and coronary disease is associated with platelet activation. This research study will investigate the nature of platelet activation in the arteries of the human heart, its relationship to activation of inflammatory cells, and to the severity of narrowings in the arteries of the human heart.
Studying Coronary Physiology Within Human Coronary Arteries Using Computational Fluid Dynamics
Funder
National Health and Medical Research Council
Funding Amount
$383,834.00
Summary
The aim of this project is to combine the recent technological advances within the individual fields of coronary physiology, three-dimensional coronary angiography, and computational fluid dynamics to develop a novel method to calculate realistic coronary blood flow. This technique will provide a simple and clinically applicable method to measure physiological parameters such as microcirculatory resistance and shear stress within _live� human coronary arteries.
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
Validation Of Point Of CarE CT DeRived FracTionAl Flow Reserve In Stable Coronary Artery Disease (VERITAS)
Funder
National Health and Medical Research Council
Funding Amount
$78,554.00
Summary
In stable coronary artery disease outcomes are dependent on the presence and burden of ischaemia. Current methods of assessing ischaemia are either invasive with associated risks or non-invasive but limited in their diagnostic accuracy. Our research plans to assess the real world feasibility of a novel, non-invasive, point of care CT-Derived Fractional Flow Reserve technique and its potential for guiding clinical decision making and influencing downstream testing.
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
Assessment Of Remote Ischemic Conditioning On Post-cardiac Arrest Myocardial Dysfunction By Magnetic Resonance Imaging, Invasive Coronary Hemodynamic Measurements And Markers Of Inflammation
Funder
National Health and Medical Research Council
Funding Amount
$265,881.00
Summary
Cardiac arrest and heart attack continue to cause unacceptably high mortality and morbidity. Even following successful resuscitation many people do not recover due to the inflammation caused by a lack of blood flow. We will investigate remote ischemic conditioning, utilizing a combination of world class imaging with heart MRI, flow monitors directly in heart arteries and markers of inflammation, We aim to determine the impact and recovery to the heart, brain and circulation of this new therapy.
The Coronary Vascular Bed, Shear Stress, Endothelial Signalling And Myocyte Electrophysiology
Funder
National Health and Medical Research Council
Funding Amount
$133,774.00
Summary
Physiologic control muscle performance includes a little understood signal from the walls of blood vessels stimulated by pressure and flow which effect muscle function. How this signal operates is controversial. We have developed a model which enables the evaluation of such signalling where changes in flow in the circumflex coronary artery induce easily measured local changes in electrophysiology which are confined to the territory of the circumflex coronary artery and which can be compared with ....Physiologic control muscle performance includes a little understood signal from the walls of blood vessels stimulated by pressure and flow which effect muscle function. How this signal operates is controversial. We have developed a model which enables the evaluation of such signalling where changes in flow in the circumflex coronary artery induce easily measured local changes in electrophysiology which are confined to the territory of the circumflex coronary artery and which can be compared with control values from the left anterior descending coronary artery territory. We propose to use this stable model to evaluate the origin, the transmission agent and the mechanism by which it alters the action potential duration.Read moreRead less