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Substrate Mapping And Ablation Of Ventricular Tachycardia
Funder
National Health and Medical Research Council
Funding Amount
$444,129.00
Summary
Sudden death is a tragic occurrence and can afflict Australians of all ages, racial and ethnic backgrounds. This research will aim to understand abnormalities in the heart muscle that cause dangerous heart rhythm abnormalities, which is the most common cause of sudden death. We will study ways to improve the technology of keyhole cardiac procedures so that it can be used to prevent these arrhythmias from occurring in the first place, and in improving the chance of long-term successful cure.
Exercise Cardiac Imaging To Study Right Ventricular Functional Remodelling In Athletes With And Without Ventricular Arrhythmias
Funder
National Health and Medical Research Council
Funding Amount
$392,587.00
Summary
Extreme exercise results in heart remodelling for which the long-term consequences are incompletely understood. We have described transient reductions in heart function following endurance sport. However, we have also described a group of athletes with serious heart rhythm problems and sustained right heart abnormalities. Therefore, we hypothesize that extreme exercise can cause potentially serious heart changes in some athletes and that detailed heart assessment during exercise will predict tho ....Extreme exercise results in heart remodelling for which the long-term consequences are incompletely understood. We have described transient reductions in heart function following endurance sport. However, we have also described a group of athletes with serious heart rhythm problems and sustained right heart abnormalities. Therefore, we hypothesize that extreme exercise can cause potentially serious heart changes in some athletes and that detailed heart assessment during exercise will predict those at greatest risk.Read moreRead less
Hypertrophic cardiomyopathy (HCM) is the most common genetic heart disease. A new clinical subgroup of HCM patients who are essentially gene carriers, referred to as "Genotype Positive Phenotype Negative" has arisen as a result of genetic testing in at-risk family relatives. Little is known about the natural history and long-term clinical outcomes of this new clinical subgroup. Understanding these factors is vital to the development of management guidelines that will lead to the best possible ou ....Hypertrophic cardiomyopathy (HCM) is the most common genetic heart disease. A new clinical subgroup of HCM patients who are essentially gene carriers, referred to as "Genotype Positive Phenotype Negative" has arisen as a result of genetic testing in at-risk family relatives. Little is known about the natural history and long-term clinical outcomes of this new clinical subgroup. Understanding these factors is vital to the development of management guidelines that will lead to the best possible outcome for these patients.Read moreRead less
Electrophysiologic Phenotyping Of Non Ischaemic Cardiomyopathy To Predict Clinical Outcome
Funder
National Health and Medical Research Council
Funding Amount
$374,676.00
Summary
Non-ischemic cardiomyopathy (NICM) is a common cause of heart failure and sudden death. Currently, the guidelines for the management are generalised and do not differentiate patients at high risk of disease progression and sudden death. This project aims to identify the electrical and structural properties of heart, to predict the clinical course in patients with NICM. Identification of high-risk patients will help allocate resources wisely and enable appropriate patient counselling.
Type 2 diabetes is the most common endocrine disease in the world and up to 60% of diabetic patients have heart disease. Heart disease is the most expensive heath condition and biggest cause of death in Australia. Diabetic patients often accumulate fat (triglyceride) within their heart cells, leading to diabetic heart disease. The present study sought to determine if diabetic patients with increased fat within their heart cells have more scarring which eventually results heart muscle dysfunction ....Type 2 diabetes is the most common endocrine disease in the world and up to 60% of diabetic patients have heart disease. Heart disease is the most expensive heath condition and biggest cause of death in Australia. Diabetic patients often accumulate fat (triglyceride) within their heart cells, leading to diabetic heart disease. The present study sought to determine if diabetic patients with increased fat within their heart cells have more scarring which eventually results heart muscle dysfunction.Read moreRead less
Application Of Genomic Technologies For The Diagnosis And Management Of Genetic Heart Diseases.
Funder
National Health and Medical Research Council
Funding Amount
$438,768.00
Summary
The purpose of this research study is to investigate clinical and genetic factors which may predispose to important cardiac events such as dangerous arrhythmias, heart failure, heart transplantation or sudden cardiac death in patients with genetic heart diseases. It is possible that there are important risk factors or genetic findings which may be identified either through newer technologies which help cardiologists determine which patients and families are most at risk.
Shannon Entropy Mapping -AF Ablation From First Principles
Funder
National Health and Medical Research Council
Funding Amount
$263,503.00
Summary
Atrial fibrillation (AF) is the most common heart rhythm disorder in humans, and a rapidly growing epidemic in Australia. AF occurs because electrical circuits called rotors take over the top chambers of the heart. Until now, ablation procedures to target AF have not been able to specifically target rotors, which has meant operations are often long and arduous. This project uses new mathematical techniques we have developed to localise rotors driving AF, aiming to develop a faster safer and more ....Atrial fibrillation (AF) is the most common heart rhythm disorder in humans, and a rapidly growing epidemic in Australia. AF occurs because electrical circuits called rotors take over the top chambers of the heart. Until now, ablation procedures to target AF have not been able to specifically target rotors, which has meant operations are often long and arduous. This project uses new mathematical techniques we have developed to localise rotors driving AF, aiming to develop a faster safer and more effective AF ablation.Read moreRead less
Cardiac Dysfunction In Diabetes: A Novel Therapeutic Approach
Funder
National Health and Medical Research Council
Summary
Diabetes is a global epidemic with high mortality associated with heart failure. I propose a new hypothesis: diabetic heart failure reflects a progressive decline in heart pump efficiency due to an accumulation of large glycogen stores in heart muscle cells. This research aims to characterise the underlying causes of heart failure in diabetes and identify intervention potential to rescue function and prevent the progression into failure.
Development Of New Heart Failure Therapeutics By Analysing Signalling In Heart Failure As A Network
Funder
National Health and Medical Research Council
Funding Amount
$314,965.00
Summary
After detailed analysis of cell signalling in diseased heart tissue we will facilitate the discovery of new therapeutic drug targets to stop the progression of heart failure in its early stages. It is hoped that the detailed analysis of heart failure signalling as a network rather than as individual pathways will enable the discovery of drugs which are more successful in stopping the progression of heart failure than the currently available drugs.
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.