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Feasibility of using PROMOGRAN PRISMA® on leg ulcers that are slow to heal
Venous leg ulcers and stasis ulcers are chronic wounds associated with poor circulation in the leg. Despite treatment some of these wounds fair to heal, or persist over many weeks, months or years. This pilot study aims to assess feasibility of a larger study investigating the use of a silver eluting cellulose/collagen matrix (PROMOGRAN PRISMA®) on hard to treat wounds. Patients with venous leg or stasis ulcers that is slow to heal will be treated with PROMOGRAN PRISMA® in conjunction with compression therapy and standard wound care weekly for 6 weeks, and followed up for a further 6 weeks. The study will measure the number of patients recruited in a 4-month period, number of patients competing the study, number of healed wounds after 12 weeks of follow up, wound surface area reduction over 12 weeks, change in percentage of the wound covered by slough, change in ankle and calf measurements and the amount of pain patients have at clinic visits.
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Autoinflation for Aboriginal and Torres Strait Islander Children with OME (middle ear infection)
OME is the most common cause of hearing loss in childhood. When persistent, and particularly bilateral, the hearing loss resulting from OME has been associated with language delay, poor educational achievement and behavioural and developmental concerns. Aboriginal and Torres Strait Islander children have the highest rate of persistent, severe and complicated otitis media described in the literature. Persistent bilateral OME is the usual reason for surgical insertion of tympanostomy tubes (‘grommets’), the second most common cause of surgical admission to hospital for children in Australia. The net cost of otitis media in Australia in 2008 was estimated to be over one billion dollars. Given the high health and cost burden of OME, a simple low cost management option is urgently needed. Standard care for OME is initial observation, followed by referral for hearing assessment if bilateral OME persists at 3 months, surgical management with tympanostomy tubes (‘grommets’) and treatment for hearing impairment are considered. Unfortunately, in addition to being costly, tympanostomy tubes have lower success rates in Aboriginal children and can be associated with chronic ear discharge in up to 50% of this group, resulting in more hearing loss than prior to surgery. Long term antibiotics are another treatment option for prolonged OME, but have low efficacy and carry the significant risk of promoting antibiotic resistance. This study proposes the use of Otovent® nasal balloon autoinflation device, as a low cost, simple means of mechanically treating OME. High pressure exhaled air, forcibly opens the Eustachian tube (connecting the middle ear and the back of the nose), by blowing up a balloon through each nostril with the mouth closed. This re-introduces air into the middle ear space and allows the fluid to drain away. It has recently been recommended by the Royal Australian College of General Practitioners for use in OME, whilst results in non-Aboriginal children are inconclusive, the Otovent has never been tested in Aboriginal and Torres Strait Islander children. The INFLATE Trial will use RCT evidence to determine whether nasal balloon autoinflation increases resolution of OME in Aboriginal and Torres Strait Islander children at 1 month. The test group will use Otovent® 3 times daily as recommended by the product manufacturer. Duration of treatment in this study will be for a minimum of 1 to maximum of 3 months (if OME persists), in accordance with the current recommended treatment period, The comparator group will consist of standard care, that is, observation only, followed by referral for ENT assessment if reduced hearing or bilateral OME is detected at 3 Months.
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Testing whether an on-line educational tool may reduce exercise-related hypoglycaemia in type 1 diabetes: the Type 1 Diabetes and Exercise Randomised Controlled Trial.
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Role of home telemonitoring of lung function using the forced oscillation technique (FOT) in asthma during down-titration of treatment
Clinical management of asthma involves tailoring medication to minimise the frequency and intensity of symptoms and prevent exacerbations. However, management is currently based on subjective patient recall of symptoms, rather than objective and personalised measures of current status and predictors of future risk of exacerbations. A potential solution may be offered by daily home monitoring using Forced Oscillation Technique (FOT), which patients can measure unsupervised at home due to its ease of use compared to peak flow or spirometry. We have shown potential clinical utility of advanced analyses to study the day-today variability in lung function in asthma in a series of retrospective studies, including the ability to predict future exacerbations within a month in an individual. This project aims to adapt such analyses to FOT data as the basis of a home telemonitoring system, and initiate a prospective study investigating the potential benefit of long-term FOT home monitoring in Australian patients with both well-controlled and uncontrolled asthma. We aim to show that FOT variability (i) predicts occurrence of exacerbations, (ii) is related to asthma control, and (iii) is sensitive to treatment changes. We will demonstrate this by studying moderate-to-severe asthma patients in a pragmatic, observational study in well-controlled asthma patients who are being considered for reduction of their inhaled corticosteroid treatment dose. Treatment is initiated by the physician according to Australian guidelines independent of participation in the study, and we will study these relationships regardless of the nature of treatment. We will monitor unsupervised FOT measurements and symptoms over a period of 10-24 weeks. Data will be uploaded automatically via mobile internet to encrypted servers and regularly checked for quality. We will also monitor exacerbations and asthma control via weekly telephone interviews and questionnaires. From these results, we eventually hope to develop an automated alert system which can signal to the patient whether or not they are about to deteriorate and to initiate self-treatment, enabling them to gain control of their disease.
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Methods of tissue preparation after Endoscopic Ultrasound guided fine-needle aspiration without rapid on-site assessment: results of a randomized study.
EUS guided fine-needle aspiration (FNA) or fine-needle biopsy (FNB) is a well-established and accurate method of obtaining tissue for the diagnosis of intra-abdominal or mediastinal lesions. Initial findings, have suggested that rapid on-site evaluation (ROSE) using cytological smears (with or without cell block preparation) has the biggest impact with increased diagnostic accuracy and reduced needle passes. However, newer evidence has brought the value of ROSE into question. Recent reports show conflicting results on whether ROSE actually does influence outcome in EUS FNA. Also a recent meta-analysis suggests that ROSE may not result in higher diagnostic yield, specimen adequacy or pooled sensitivity and specificity. The utilization of cell blocks or direct histological processing to prepare FNA specimens, involve placing all needle contents into liquid fixative and therefore do not require ROSE. Reports show high diagnostic yield with both, exceeding 89%. These also avoid the need for smear preparation, which requires training and can result in inadvertent loss of diagnostic material. Prospective randomised data comparing these techniques is lacking and therefore the best method for preparing EUS FNA specimens is unknown. We hypothesize that without ROSE, direct histology or cell block is the tissue preparation technique of choice, as smearing often has low diagnostic yield and may result in loss of diagnostic material. The aim of this study is to compare the diagnostic yield of the different methods for EUS FNA/FNB specimen processing in a randomized fashion and to identify the most optimal method of tissue preparation in the absence of ROSE. All patients who were referred to our unit for EUS guided FNA of a solid mass or lymph nodes in or adjacent to the upper GI tract over an 8-month period were prospectively recruited for the study.
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Evaluating the accuracy of bedside ultrasound to diagnose wrist fractures in children
Paediatric distal forearm fractures, usually of the radius, are a common presentation to the emergency department (ED). Buckle, or torus, fractures occur in children due to the deformation of their soft bone, without breech of cortex. The gold standard for diagnosis of these fractures is x-ray imaging, which can then be effectively treated with a wrist splint. It has also been demonstrated that they can be accurately diagnosed by a rapid ultrasound protocol that can be easily learnt. Ultrasound is not typically utilised in this fashion in a tertiary paediatric ED due to readily available x-ray imaging. However, regional services often have limited radiographic services after-hours. Nurse practitioners (NPs) are frontline workers in the ambulatory care area of the ED where they are heavily relied upon for the diagnosis and management of paediatric fractures. If it can be demonstrated that NPs with limited ultrasound experience can diagnose distal forearm buckle fractures with high accuracy after a short training course, there may be validity in similar front-line workers being trained in this modality in resource-limited environments. This pilot study will determine the acceptability, tolerability (pain compared to radiograph), feasibility (time of scan), and the accuracy of NPs to diagnose buckle fractures using ultrasound compared to radiograph as the gold standard. The results from the pilot study would be used to inform the development of a larger multi-centre research project that incorporates regional sites.
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Oral care intervention in people with and without dementia living in residential aged care
This project seeks to improve and maintain the oral health of people who move into residential aged care by providing an objective way to document they are receiving effective oral care. The project developed as the result of a suggestion by staff at a residential care community in northern Tasmania (Australia) during their participation in a current federally-funded initiative with researchers at the University of Tasmania. The purpose of this project is to determine the impact of a 6-week period of 2-minutes of teeth cleaning after meals, or daily denture cleaning, on the type and load of oral bacteria in the mouths of residents. The hypothesis is that the 6-week intervention will lead to a change in the type and load of oral bacteria, increase residents' oral health, and reduce their risk of aspiration pneumonia.
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Red blood cell transfusion, lowest haemoglobin level, and their association with mortality and length of hospital stay in surgical patients.
Anaemia, a global public health problem, is common in developing and developed countries, particularly among hospitalized patients. The World Health Organization defines anaemia as a haemoglobin concentration below 130 grams per litre in males and 120 grams in litre in females. A recent systematic review and meta-analysis on preoperative anaemia and outcomes after cardiac and non-cardiac surgery reported 39% of patients were admitted anaemic. These anaemic patients had three-fold higher odds of mortality, four-fold higher odds of acute kidney injury and twice the odds of infection. Not surprisingly, anaemia was also associated with increased transfusion, with anaemic patients five-times more likely to receive a red blood cell transfusion. As these results indicate, red blood cell transfusions are often administered to correct low haemoglobin levels. However, correcting anaemia with transfusion is problematic as red blood cell transfusion has a dose-dependent association with increased mortality, morbidity, hospital and ICU length of stay, readmissions, and cost. Large risk-adjusted observational studies demonstrate that even transfusing a single unit of red blood cells is associated with increased adverse outcomes in surgical patients, thus recommending caution before transfusing. In an attempt to find the “optimal” transfusion threshold, many randomized controlled trials have investigated the difference between using restrictive pre-transfusion haemoglobin thresholds compared with liberal thresholds. A restrictive strategy refers to a policy of administering red blood cell transfusions at comparatively lower pre-defined haemoglobin levels, with the goal of minimizing the use of blood. Though not always the case, restrictive transfusion thresholds are often defined as haemoglobin levels between 70 grams per litre and 80 grams per litre and liberal transfusion thresholds are commonly defined as haemoglobin levels between 90 grams per litre and 100 grams per litre. A recent systematic review and meta-analysis published in the Cochrane Library concluded there is no difference in morbidity or mortality between restrictive and liberal transfusion strategies. However, these trials are often confounded by transfusions administered pre-randomization, a lack of comparable transfusion dosing regimens between studies, and at times small differences in actual mean pre-transfusion haemoglobin levels between control and intervention arms. In addition, these randomized controlled trials do not address transfusion efficacy and still leave many important questions unanswered. For example, whether haemoglobin thresholds lower than 70 grams per litre are just as effective as haemoglobin levels higher than 70 grams per litre. Some have suggested lower haemoglobin thresholds may be just as effective. The aim of this study is to determine what effect red blood cell transfusion has on mortality and length of stay at various levels of nadir haemoglobin.
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A study looking at the use of Mfolfirinox Chemotherapy And Stereotactic Radiotherapy for Patients with Locally Advanced pancreatic cancer to evaluate if this is a feasible treatment option with acceptable acute toxicity rates.
This study will qualitatively and quantitatively assess MRI and PET (18F-MISO and if available, 18FDG-PET) for the treatment response assessment of pancreatic cancer patients treated using mFOLFIRINOX chemotherapy (which is the current standard of care for chemotherapy) combined with SBRT. The feasibility of the combination of these two therapies will be assessed according to acceptable toxicity rates. Who is it for? You may be eligible to join this study if you are aged 18 years to 69 years and have been diagnosed with borderline resectable pancreatic adenocarcinoma or unresectable pancreatic adenocarcinoma. Study details: All patients who are enrolled in the study will receive the standard pre-treatment work-up, study treatment of mFOLFIRINOX chemotherapy combined with SBRT and post treatment surveillance. In addition patients will be subjected to 3 additional MRIs, 2 two additional 18FDG-PET and 3 additional 18F-MISO PET (if available) conducted up to 4 weeks following completion of SBRT. Patients will also be subjected to study blood tests. Some blood tests may be part of standard care but those that are not will be included with the standard of care blood tests with additional blood taken and if not part of standard collection, will be taken at the correct timepoint for the study. Patients will be asked to complete QoL questionnaires at 7 timepoints throughout the study. Those patients that are determined to have resectable cancer by the multidisciplinary team following their treatment will proceed to surgical removal of their tumour. Follow up will continue on patients who have resectable or unresectable cancer for 24 months following treatment. This study will inform the design of a larger, randomised, multicentre trial.
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A Phase 1 Study to Evaluate the Safety and Tolerability of AB122 in Subjects with Advanced Solid Tumors
This research study is testing the safety and tolerability of a potential new drug called AB122 in subjects with advanced solid tumours. Who is it for? You may be eligible to join this study if you are aged 18 years or over and have a pathologically confirmed solid cancer that is metastatic, advanced or recurrent with progression for which no alternative or curative therapy exists or standard therapy is not considered appropriate by the subject and treating physician. Study details A major purpose of this study is to find a safe dose range of AB122 that can be given to humans with cancer. To do this, multiple study cohorts will be enrolled and receive ascending doses of AB122. This means that if one dose has passed the safety and tolerability review, the next higher dose will be given to the subsequent patient cohort. The study will stop once the maximum tolerable dose is determined. In addition, the study will look at the amount of study drug in the blood to evaluate the way the body processes the study drug (pharmacokinetics) and the way the study drug affects the growth of tumours in cancer patients (pharmacodynamics). This research study will help us understand whether AB122, the study drug, can be safely given to patients with cancer.