Determination Of Irradiation Dose Efficacy For Use In Impaction Grafting At Revision Joint Replacement
Funder
National Health and Medical Research Council
Funding Amount
$411,517.00
Summary
Primary hip replacement is a successful intervention for hip disease, but 10-15% of hip prostheses fail and require revision surgery within 10-15 years. At the time of revision, significant bone loss around the failed prosthesis is not uncommon. A bone reconstruction procedure, called impaction grafting, where donor bone is minced and placed in the areas of deficient bone before implanting the new prosthesis, has shown to give good results at more than ten years in some centres. A high incidence ....Primary hip replacement is a successful intervention for hip disease, but 10-15% of hip prostheses fail and require revision surgery within 10-15 years. At the time of revision, significant bone loss around the failed prosthesis is not uncommon. A bone reconstruction procedure, called impaction grafting, where donor bone is minced and placed in the areas of deficient bone before implanting the new prosthesis, has shown to give good results at more than ten years in some centres. A high incidence of early complications of this procedure have included loss of fixation within the bone. Fracture of the bone around prostheses has also reported in some centres. These events require more surgery, putting the patient at higher risk greater complications and longer rehabilitations. Recent improvements in surgical technique and donor bone preparation have improved results. A current debate questions whether the dose of irradiation can be reduced from 25 kGy, while maintaining sterility of allografts. The risk of bacterial contamination in allografts is low, and irradiation reduces the mechanical strength of the graft, contributing to complications when irradiated bone is used. The benefits of decontaminating the bone may be outweighed by the higher risk for failure due to poor bone quality and resulting prosthesis instability. We will use ISO standards to test the validity of radiation dose for sterilising bone ex vivo. In the absence of controlled human studies, our aim is also to compare the results of impaction grafting with non-irradiated bone versus bone irradiated at current doses used by Australian bone banks, and lower doses indicated by ex vivo testing. We will use a large animal model of revision hip replacement, with precise measures of prosthesis stability. The results of this study will guide clinical decisions regarding the efficacy of current bone graft preparation procedures and the use of irradiated bone in human hip replacement surgery.Read moreRead less
Dissecting The Pseudoexfoliation Syndrome With Complementary Genetic, Proteomic And Biophysical Strategies
Funder
National Health and Medical Research Council
Funding Amount
$490,352.00
Summary
Pseudoexfoliation syndrome (PEX) is an eye condition in which flaky material deposits in the eye, greatly increasing the risk of cataract and glaucoma which can lead to blindness. PEX is also associated with heart disease, strokes and aneurysms. Cataract surgery in PEX patients has a higher rate of complications. In this project we will determine the nature of PEX material and why it forms. This knowlege will facilitate better diagnosis and treatment of PEX preventing associated blindness.
A Genome-wide Association Scan To Identify Genetic Risk Factors For Sight Threatening Diabetic Retinopathy
Funder
National Health and Medical Research Council
Funding Amount
$982,203.00
Summary
Diabetic eye disease is an important complication of diabetes that can lead to blindness. Very little is known about how diabetes causes eye disease, but genetics is known to play a role. We aim to identify genes that contribute to eye disease in diabetes patients. We will compare genes between patients with diabetes with and without severe diabetic eye disease using cutting edge genomic technology. We hope to be able to better predict risk of blindness and to move towards novel treatments.
Which Heart Failure Intervention Is Most Cost Effective In Reducing Hospital Care (WHICH? II) Trial: A Multicentre, Randomised Trial Of Standard Versus Intensified Management Of Metropolitan And Regional-dwelling Patients With Heart Failure
Funder
National Health and Medical Research Council
Funding Amount
$1,891,210.00
Summary
Chronic heart failure (CHF) management programs are now the gold-standard to cost-effectively care for thousands of Australians hospitalised with CHF each year. We’ve shown that home-based management is most cost-effective in reducing hospital stay in CHF. The Which Intervention is most Cost-effective in reducing Hospital care (WHICH? II) Trial, a multicentre, randomised study, will determine if more intensive care (via home visits and remote care contacts) further improves poor outcomes in CHF.
Development Of Diagnostic Tools To Characterise Predictors Of Therapeutic Outcome In Severe Constipation
Funder
National Health and Medical Research Council
Funding Amount
$433,999.00
Summary
This project will use fibre-optic technology to create detailed high resolution maps of colonic motor patterns in both health and in patients with severe constipation. The data will be used in combination with actual patient symptoms to help identify specific markers of disease that can differentiate sub-types of constipation and ultimately guide and improve treatment in constipated patients
Clinical And Psychosocial Changes Over Late Childhood And Adolescence And Early Life Determinants Of Long Term Clinical Outcomes In Cystic Fibrosis
Funder
National Health and Medical Research Council
Funding Amount
$1,135,570.00
Summary
Cystic fibrosis is the most common life shortening inherited disease in Caucasians. Lung damage starts in infancy and lung function falls most rapidly in adolescence although why and how this happens and early life determinants are not known. This study takes advantage of a previous study that monitored young children from 3 months to 5 years of life and follows them closely through early adolescence to investigate the protective and risk factors for falling lung function.
Probiotic Prawn Oral Immunotherapy (ProPIT) For Treatment Of Prawn Allergy
Funder
National Health and Medical Research Council
Funding Amount
$1,865,369.00
Summary
A ‘curative’ food allergy treatment is needed to prevent deaths and improve care. We recently showed that probiotic peanut oral immunotherapy (PPOIT) was highly effective for treating peanut allergy. 82% of PPOIT treated children gained tolerance compared to 4% of the placebo group. We will now test the combined probiotic-food OIT approach for treating prawn allergy. If successful, we will have identified the first treatment for prawn allergy and a platform treatment for other food allergies.
An In Depth Analysis Of Clinical And Virological Outcomes Of 2 Strategies For The Antiretroviral Salvage Of First-line Regimen Virological Failure For HIV-1 Infection Tested In An Australian-led Randomised, International, Multi-centre Clinical Trial
Funder
National Health and Medical Research Council
Funding Amount
$421,747.00
Summary
The recently completed Australian-led SECOND-LINE trial is the first high quality study to provide reliable evidence for policy recommendations for the composition of anti-HIV drug cocktails after standard initial treatment has failed. This award will support the researcher in further refining our understanding of how to manage second-line therapy including proposals to test the use of low-cost technologies for application in resource-limited settings where the majority of people with HIV live.
Multi-centre RDBC Trial Of Oxygen Vs Air For Relief Of Breathlessness In Terminally-ill Patients With Intractable Dyspno
Funder
National Health and Medical Research Council
Funding Amount
$149,701.00
Summary
This study will compare the effects of oxygen and air in the relief of breathlessness in patients at the end of life who do not currently qualify for home oxygen. This landmark study will provide accurate information about any benefits that oxygen offers for breathlessness in this setting. This international multi-site study will ask 226 people to participate using either oxygen or air for 7 days while keeping a diary. We will measure breathlessness, quality of life, anxiety and side effects exp ....This study will compare the effects of oxygen and air in the relief of breathlessness in patients at the end of life who do not currently qualify for home oxygen. This landmark study will provide accurate information about any benefits that oxygen offers for breathlessness in this setting. This international multi-site study will ask 226 people to participate using either oxygen or air for 7 days while keeping a diary. We will measure breathlessness, quality of life, anxiety and side effects experienced.Read moreRead less