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Improving The Long-term Outcomes Of The Australian And New Zealand Fontan Population
Funder
National Health and Medical Research Council
Funding Amount
$89,836.00
Summary
The Fontan procedure is the last of a series of operations offered to children born with hearts with a single pumping chamber. Without this procedure these children would die, however, with this procedure their long-term expectations are still uncertain. This study will investigate the long-term outcomes of the Australian and New Zealand Fontan population and how these outcomes can be improved.
STudy Of Risk Assessment To Reduce Complications In Patients Following Noncardiac SurgerY (STRATIFY)
Funder
National Health and Medical Research Council
Funding Amount
$436,000.00
Summary
Cardiac problems account for many complications in patients undergoing major non-cardiac surgery, and even apparently minor cardiac damage is a marker of high risk for subsequent adverse events. Unfortunately, while money and effort is expended on identifying patients at risk, the appropriate response to this risk is quite unclear. The performance of bypass surgery or balloon angioplasty in order to treat the underlying coronary disease of at-risk patients is used in other situations, and reduce ....Cardiac problems account for many complications in patients undergoing major non-cardiac surgery, and even apparently minor cardiac damage is a marker of high risk for subsequent adverse events. Unfortunately, while money and effort is expended on identifying patients at risk, the appropriate response to this risk is quite unclear. The performance of bypass surgery or balloon angioplasty in order to treat the underlying coronary disease of at-risk patients is used in other situations, and reduces longterm risk. However, in many patients undergoing major noncardiac surgery, this approach may be inappropriately aggressive, as these patients are often elderly, have other diseases that make heart operations more difficult and risky than usual, and in any case may have a reduced life expectancy from the disease necessitating the operation. As the most critical issue is to ensure that patients undergo their surgery uneventfully, an alternative is the use of intensive medical therapy to protect the heart. This multicentre study, based at Brisbane hospitals that perform large numbers of major operations, will follow up patients for complications, and outcome (including quality of life) will be assessed six months after the operation. We will address two important questions about the efficacy and cost of risk reduction strategies. First, in patients at higher levels of risk and with a positive stress test, could a combination of medical therapy designed to protect the heart be as effective as current approaches, which include the performance of bypass surgery or coronary balloon angioplasty? Second, in patients identified as being at some risk - but low risk - are drugs sufficiently effective to avoid the need for further testing to quantify risk? As the population continues to age, the numbers of at risk patients undergoing major surgery will increase, and answers to these questions will provide important information to guide their management.Read moreRead less
Identifying The Site/s Of Modification On The Human L-type Ca2+ Channel Protein Isoforms During Oxidative Stress With Reference To Development Of A Therapeutic Target
Funder
National Health and Medical Research Council
Funding Amount
$360,369.00
Summary
A rise in calcium and free radicals in the heart are associated with the development of heart disease. We have good evidence that a protein in the heart muscle known as the L-type calcium channel mediates changes in calcium in response to free radicals. This proposal will identify how the channel function is altered by free radicals so that a therapeutic target can be designed to prevent altered channel function and development of heart disease during increases in free radicals.
Targeting PI3K-regulated MicroRNAs To Treat Heart Failure
Funder
National Health and Medical Research Council
Funding Amount
$532,593.00
Summary
Current therapeutics largely delay heart failure progression rather than regressing it. New therapeutic strategies with the capability of improving function of the failing heart are thus greatly needed. The primary goal of this study is to determine whether novel regulatory genes can enhance cardiac function in a setting of heart failure. Ultimately, technologies that target these genes may lead to innovative pharmacotherapies in the clinical management of heart failure.
Safety And Efficacy Of A Surgically Implanted Suprachoroidal Retinal Prosthesis (Bionic Eye)
Funder
National Health and Medical Research Council
Funding Amount
$1,233,826.00
Summary
A bionic eye is a electronic device which can stimulate the remaining visual pathway in a person who is blind, to restore some basic vision. Our team have previously shown that our novel bionic eye device can be safely implanted in a patient, and can give improvements in vision when tested in a laboratory environment. The next stage of the research is to provide patients with a more advanced device, which will contain more electrodes and also be able to be taken home.
The Implementation Of MinimAlly INvasivE Hysterectomy (IMAGINE) Trial
Funder
National Health and Medical Research Council
Funding Amount
$656,854.00
Summary
Hysterectomy is the most common surgical [procedure among Australian women. Too many women still receive an open abdominal surgery, because too few Australian obstetricians and gynaecologists practice laparoscopic hysterectomy. This partnership will develop a model to systematically train practicing surgeons in advanced laparoscopic techniques. If successful, the model can be rolled out state and nationwide and also adapted for teaching future innovations in surgery.
Urotensin-II In Human Heart: Investigation Of Mechanisms Involved In Cardiac Function
Funder
National Health and Medical Research Council
Funding Amount
$255,990.00
Summary
The normal function of the body is maintained by naturally occurring compounds. Some for example affect the heart, fine tuning it to make it beat faster or slower, or beat with greater or less force when required in different situations in health and disease. We were the first to show just recently that a small protein which occurs naturally in the body, called urotensin-II can affect the way the heart beats. We showed that extremely tiny amounts increase the force of the heart beat. Our finding ....The normal function of the body is maintained by naturally occurring compounds. Some for example affect the heart, fine tuning it to make it beat faster or slower, or beat with greater or less force when required in different situations in health and disease. We were the first to show just recently that a small protein which occurs naturally in the body, called urotensin-II can affect the way the heart beats. We showed that extremely tiny amounts increase the force of the heart beat. Our findings indicate that urotensin-II is the most potent heart stimulator identified to date. In patients with heart failure, short term stimulation of heart contraction is beneficial, supplying the heart and other organs with vital oxygen and nutrients. However, in the long term excessive stimulation causes worsening of the patients condition. Very little is currently known about the way in which urotensin-II alters heart function. The goal of our study is to understand the mechanism involved in urotensin-II mediated effects on the heart. This will involve identifying the location of urotensin-II and its receptors in the heart, and determining what signalling changes occur after the interaction of urotensin-II with its receptors. Urotensin-II must first be cleaved from a larger drug. We will determine where in the heart this cleavage occurs and whether the process is crucial to the ability of urotensin-II to stimulate contraction of the heart. Since stimulators of heart contraction are detrimental to patients with heart failure in the long term, we will determine whether these patients have more urotensin-II in their blood than patients who do not have heart failure. If the levels of urotensin-II are higher in heart failure patients, it may indicate a need to interfere with the interaction of urotensin-II with its receptors.Read moreRead less
Australian Resuscitation Outcomes Consortium [AUS-ROC] CRE
Funder
National Health and Medical Research Council
Funding Amount
$2,668,571.00
Summary
The Australian Resuscitation Outcomes Consortium (Aus-ROC) will be modelled on the highly successful North American Resuscitation Outcomes Consortium. The mission of Aus-ROC will be to conduct clinical trials and observational studies into the emergency management of out-of-hospital cardiopulmonary arrest. Building on our existing collaborative partnerships, our goal is to improve patient outcomes and build the research capacity in prehospital emergency care.
A Systematic Evaluation Of The Neurosurgical Application Of Peri-operative And Intra-operative MR Tractography In Different Paediatric Disease States
Funder
National Health and Medical Research Council
Funding Amount
$130,910.00
Summary
My research investigates changes in brain nerve fibre tracts/white matter in paediatric disease states and changes related to surgery by using nerve fibre tract imaging before, during and after surgery. It will also generate an imaging atlas to help understand white matter pathway development. It then serves as normative comparison to better understand aberrations in diseased neural pathways. The outcome will aid understanding in brain development, recovery and plasticity, and helps improve whit ....My research investigates changes in brain nerve fibre tracts/white matter in paediatric disease states and changes related to surgery by using nerve fibre tract imaging before, during and after surgery. It will also generate an imaging atlas to help understand white matter pathway development. It then serves as normative comparison to better understand aberrations in diseased neural pathways. The outcome will aid understanding in brain development, recovery and plasticity, and helps improve white matter lesion localisation.Read moreRead less
Reduction Of Chronic Post-surgical Pain With Ketamine - ROCKet Study
Funder
National Health and Medical Research Council
Funding Amount
$4,823,395.00
Summary
Chronic post-surgical pain (CPSP) is a common complication of major surgery, and a significant burden on quality of life and ongoing health costs. Ketamine is a drug used by anaesthetists to treat severe acute surgical pain. Various small studies suggest that it may be unique in its ability to reduce the risk of CPSP. We propose a large trial of ketamine during & after anaesthesia for major surgery to test this. Demonstration of effectiveness would promote widespread change in clinical practice.