ANZCTR search results

Evidence from paper-based menus suggests that the position of items within the menu influences the frequency with which items are purchased, with items positioned first and last on the menu purchased at up to double the rate of items in the centre of the menu. The current study aims to determine whether similar principles apply online within the online school canteen setting. A cluster randomised trial will be conducted which involves re-positioning target items within the online menu of the intervention group and determining the effect on sales of those items. It is hypothesised that a higher proportion of online lunch orders in intervention schools will contain the target items (fruit and vegetable snacks) relative to online lunch orders from control schools. Six schools that currently use an online lunch ordering system will be recruited to the trial. Three schools will be randomly allocated to receive the intervention by an independent statistician using a randomised number function in excel. Intervention schools will have their online lunch order menu reviewed by a dietitian, who will identify any fruit and vegetables snack items on the menu. These items will be moved from their current position, and grouped together in a single menu category called “Fruit & Veggie Snacks” and will appear as the first food category on the online menu, and will be repeated to form the last food category on the menu. The intervention will run for a 4-week period. The primary trial outcome is the proportion of online lunch orders in intervention schools that contain any target items (“Fruit & Veggie Snacks”). The online lunch ordering system automatically captures and records all sales made through the system. This data will be analysed to determine the impact of the re-positioning intervention in intervention schools relative to control schools. The 4-week period immediately prior to intervention commencement will form the baseline period.

People with a mental illness have significantly poorer physical health and shorter life expectancy than the general population, primarily due to chronic diseases. A higher prevalence of modifiable health risk behaviours such as poor nutrition, inadequate physical activity, harmful alcohol consumption and smoking contribute substantially to this disparity. Evidence based guidelines recommend that mental health services routinely provide care to address these risk behaviours, however, the provision of such care is consistently reported to be low in Australia and internationally. A randomised controlled trial will be conducted to determine the effectiveness, acceptability and feasibility of allocating a designated clinician within a community mental health service to the specific role of providing assessment, advice and referral for clients' chronic disease risk behaviours. Clients of one community mental health service in NSW, Australia will be randomly allocated to receive either usual care for chronic disease risk behaviours, or usual care plus an additional face-to-face consultation and follow-up telephone call with a ‘healthy lifestyle clinician’. The role of the clinician will be to assess clients’ chronic disease risk behaviours, provide advice to change behaviours, and refer at-risk clients with free government telephone coaching services (NSW Quitline and NSW Get Healthy Information and Coaching Service) for ongoing care. The primary outcomes, referral to and uptake of the NSW Quitline and NSW Get Healthy Information and Coaching Service, will be obtained from the respective services. Telephone interviews of clients will be conducted at baseline and one and six month post baseline follow-up to assess secondary outcomes: self-reported chronic disease risk behaviour status, self-reported receipt of any assessment, advice and referral from the mental health service, satisfaction with the receipt of such care, and interest, confidence and perceived importance of changing risk behaviours.

Rehabilitation is required for functional recovery from many acute illnesses such as stroke, orthopedic fractures and de-conditioning seen during extended hospitalization. Unfortunately, research into physical, social and cognitive activity of patients undergoing rehabilitation has shown that patients spend almost all of their time alone, inactive and disengaged. There is increasing interest in how changing the physical environment may improve activity levels, and therefore recovery, but it is currently unknown what impact changing design features such as single vs. multi- bedrooms and proximity to outdoor areas and communal spaces has on physical activity levels. The move to the new Kawana Hospital provides a unique opportuntity to examine this, and consequently this study will determine how changes in hospital design influences physical, social and cognitive activity levels of patients in Acute Stroke and Rehabilitation Units. This prospective observational study will examine the effects of the change in physical environment with transition to a new hospital by observing total activity levels using behavioral mapping and accelerometers in patients recovering in acute stroke and sub-acute rehabilitation units before and after transition. By embedding the use of advanced technologies such as Actigraph and Stepwatch accelerometers, and the building of collaborative networks with the University of the Sunshine Coast, our hospital and health service is set to lead the development of interventions that may guide national and international treatment guidelines.

The optimal management of PDA is highly controversial with a lack of consensus regarding the need to treat, timing of intervention, the most appropriate pharmacological agents (including dose, dose intervals, duration, repeat courses, routes of administration) and the role of surgical intervention. Traditionally, the medications we use to treat PDA are non-steroidal anti-inflammatory drugs (NSAIDs), which decrease prostaglandin production by inhibiting cyclooxygenases (COX). The most commonly used medications, indomethacin and ibuprofen, have a success rate of approximately 70% - 85%. Unfortunately these medications are associated a number of unwanted adverse effects due to decreased blood flow to the brain, gastrointestinal tract and kidneys. Exposure to these medications puts vulnerable preterm infants at risk of significant complications such as intestinal perforation and necrotising enterocolitis. The alternative to medications is surgical intervention, which also carries significant risks, particularly for extreme preterm infants. Paracetamol is a medication with an excellent safety profile in infants when used to treat mild to moderate pain and fever. Although the mechanism of action of paracetamol is not completely understood, part of its spectrum of activity resembles that of a COX-2 selective inhibitor. Similar to traditional NSAIDs, this results in decreased prostaglandin production. It is therefore intuitive that this may also be effective in promoting ductal closure without the adverse effects associated with NSAIDs. Early experiences with the use of paracetamol for ductal closure have been encouraging. Paracetamol appears to have similar efficacy to NSAIDs, without the gastrointestinal complications associated with NSAIDs, and is well tolerated in the preterm infant population. It has been suggested as a safe alternative medication in situations where other medications have failed or are contraindicated. The aims of this study are to study the effect of early treatment of patent ductus arteriosus with paracetamol and to examine the safety and efficacy profile of paracetamol during the early postnatal period. We hypothesise that early treatment with paracetamol will reduce the number of infants requiring intervention for PDA and that the use of paracetamol in preterm infants with a patent ductus arteriosus will result in a higher rate of ductal closure compared with placebo. We also am to show that paracetamol can be used safely in preterm infants during the early postnatal period.

Intermittent hypoxia (pulse oximetry saturation <80%) and bradycardia (pulse rate <80 beats per minute) frequently occur in preterm infants, often associated with apnoea of prematurity. Such episodes of hypoxia and re-oxygenation have the potential to trigger a pro-inflammatory cascade leading to multisystem morbidity including retinopathy of prematurity, impaired growth, longer-term cardiorespiratory instability, and poor neurodevelopmental outcome. Widely used treatments such as methylxanthines and continuous positive airway pressure (CPAP) are sometimes insufficient and endotracheal intubation and mechanical ventilation are required. Nasal CPAP is the most widely used from of 'non-invasive' ventilation (NIV) in very preterm infants. NIV refers to respiratory support without the need for an endotracheal tube, usually delivered via nasal prongs. Nasal CPAP is an alternative to mechanical ventilation in preterm infants soon after birth. A meta-analysis comparing early CPAP with intubation and mechanical ventilation showed that CPAP reduce the risk of the combined outcome of death or bronchopulmonary dysplasia (BPD). CPAP failure primarily occurs due to AOP, oxygen requirements pre-specified thresholds, and hypercapnia related to hypoventilation. Ventilation failure in infants treated with CPAP may be due to inadequate alveolar ventilation and carbon dioxide elimination. High-frequency oscillatory ventilation (HFOV) delivered via an endotracheal tube leads to excellent carbon dioxide removal using a tidal volume less than the volume of the dead space. HFOV, which has until recently only been delivered via endotracheal tube, uses oscillations of low amplitude and high frequencies quite different from those of normal respiration. It may cause less lung injury than conventional mechanical ventilation. The combination of HFOV and NIV could provide lung-protection, improved oxygenation, better gas exchange, and reduced rates of AOP compared to NIV alone. Therefore, we aim to assess the effect of nHFO versus CPAP therapy in very preterm infants born <30 weeks’ gestation on the cumulative event rate of all bradycardias (< 80 bpm) and desaturations (< 80%) during a 120-minute recording period for each therapy. We hypothesize that in very preterm infants, nHFO is associated with a significant decrease in the number of bradycardias and desaturations compared with CPAP.

Obstructive sleep apnoea (OSA) affects 1.5 million Australians and results in significant morbidity and mortality. However, half of patients cannot tolerate the leading treatment, continuous positive airways pressure (CPAP). For those intolerant of CPAP, a common treatment alternative involves upper airway surgery (UAS). Unfortunately, a significant number of patients referred for this treatment do not respond and suffer from residual OSA with its inherent cardiovascular and neurocognitive consequences. Furthermore, current clinical predictive tools are poor at identifying responders to UAS and there are no proven additional therapies to offer those patients failing UAS treatment. The key to providing better predictors of OSA resolution with UAS is to understand how these interventions affect the physiology responsible for OSA. It is clear that UAS improves upper airway anatomy/collapsibility. However, poor upper airway anatomy is not the only factor contributing to OSA. Recent evidence suggests that several additional, non­anatomical, physiological traits contribute to the pathogenesis of OSA including: 1) an oversensitive ventilatory control system (i.e. high loop gain), 2) a low respiratory arousal threshold, and 3) poor pharyngeal dilator muscle effectiveness characterised by an inability of the pharyngeal muscles to hold open or stiffen the airway during sleep. However, it is not known how UAS alter these non­anatomical traits and whether abnormalities in these traits are the reason for the variability in the success of UAS treatments. Furthermore, it is also not known if targeting non­ anatomical traits with additional treatments (i.e. combination therapy) will improve outcomes for those patients who have had only a partial response to UAS. Our goal is to be able to accurately identify which OSA patients are good candidates for UAS therapy by identifying robust predictors of OSA resolution with these interventions. Furthermore, we aim to offer additional treatments to ‘salvage’ those patients who have failed to respond completely to UAS.

Truck drivers are highly susceptible to cardiovascular disease (CVD), type 2 diabetes, obesity, high blood pressure and stress. Employees within this industry are typically older men and therefore more likely to develop CVD related conditions, compared to other occupational groups. Furthermore, inflexible and unhealthy work conditions often mean truck drivers are particularly inactive, engage in long periods of sedentary behaviour (or sitting), and have poor diets consisting of high fat convenience food, and drinks with high fat or sugar content. Effective strategies need to be developed to counter these poor lifestyle choices, but to date, no intervention study has targeted inactivity, sedentary time and diet in truck drivers; consequently, evidence is lacking on how best to empower drivers towards active living and healthy eating/drinking approaches. This study will test the feasibility of a new intervention (termed 'Shifting Gears'), designed to promote healthy lifestyle choices, and reduce cardiovascular risk, in Australian truck drivers. The study aims to develop and implement active living and healthy eating/drinking strategies in driver breaks, and evaluate the efficacy of these strategies over a six month intervention period, using measured changes in physical activity, sedentary behaviour and healthy food/drink options, as the main study outcomes.

Current evidence suggests exercise plays an important role in the management of blood glucose levels for individuals with T2DM.The comparison on mode of exercise on glucose regulation is not well understood and limited. Previous research have investigated treadmill or cycling exercise on glucose tolerance separately, however the comparison between the two modes of exercise on glucose regulation is limited. We seek to determine which mode of exercise would be more effective in managing glucose tolerance since walking/running is freely accessible without having the need to sign up to a gym or to invest in a bicycle. It is now understood that type 2 diabetes is associated with a chronic state of inflammation. Recent evidence have shown that exercise is beneficial in improving inflammation along with reducing insulin resistance. We aim to identify whether the mode of exercise influences the level of inflammation and glucose tolerance following a two-week training period. Findings of this study may help inform future exercise prescription to improving health status in this population.

The primary purpose of this trial is to evaluate the feasibility of providing screening for human papilloma virus (HPV) infection of the anus in patients who have had or who are on the waiting list for a kidney transplant at Westmead Hospital. The trial also aims to provide initial estimates of the prevalence of HPV infection in this population. Who is it for? You may be eligible to enroll in this trial if you are aged over 18 years, and you have had or are on the waiting list for a kidney transplant at Westmead Hospital. Study details At a routine assessment visit, all participants will complete a questionnaire for demographic and sexual behaviour information, and have an anal swab taken. The sample will be analysed for different types of HPV infection and to see if any abnormal cells are present. Any participant with either a significant cytological abnormality, or in whom high risk HPV is detected, will be referred for further investigation at a specialist clinic. It is hoped that this trial will provide information on whether it is feasible to collect this information in transplant recipients, as well as providing initial estimates of the prevalence of HPV.

Maximising performance and facilitating recovery following injury are important goals for athletes. An ever-expanding industry is dedicated to the provision of therapeutic products designed to optimise function. One example of such product is the Kinesio tape, which is claimed to promote healing and facilitate neuromuscular activity, leading to an improved performance. There is also suggestion that the colour of the tape may influence performance. This crossover randomised study will determine if lower limb performance is influenced by (1) the application of Kinesio tape and (2) by the colour of Kinesio tape in healthy individuals. For that aim, healthy participants will be assessed in 5 conditions that will be allocated in random order: (1) red Kinesio tape; (2) blue Kinesio tape; (3) beige colour Kinesio tape; (4) beige colour Kinesio tape with no tension (sham); and (5) no tape (control). The tape will be applied to vastus lateralis, vastus medialis and rectus femoris muslces of the dominant leg. The primary outcome will be the performance of participants on the horizontal jump test. Secondary outcomes include: (1) knee extensor torque and (2) neuromuscular function (motor evoqued potentials of the rectus femoris muscle).