Research and Conference Publications
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This collection contains journal articles and other research publications such as book chapters, conference papers, and posters authored by NT Health staff and provides an overview of the interests, research activities and projects undertaken by NT Health staff. Most journal articles are published in subscription-based or open access publications, so this collection contains mainly citations and links to full text content on external sites, but where permitted, the PDF file has been made available.
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Journal Article Nutrition delivery during hospitalisation after critical illness in Australia and New Zealand: a multicentre, prospective observational study.(2025-02-01) ;Ridley, Emma J ;Ainscough, Kate ;Bailey, Michael ;Baskett, Rebecca ;Bone, Allison; ;Capel, Eleanor ;Chapple, Lee-Anne ;Cheng, Andrew ;Deane, Adam M ;Doola, Ra'eesa ;Ferrie, Suzie ;Fetterplace, Kate ;Gilder, Eileen ;Higgins, Alisa M ;Hodgson, Carol L ;King, Victoria ;Marshall, Andrea P ;Nichol, Alistair ;Peake, Sandra ;Ramanan, Mahesh ;Neto, Ary Serpa ;Udy, Andrew ;Williams, Patricia ;Winderlich, JacintaYoung, Paul JEnergy and protein provision for critically ill patients who receive oral nutrition often falls below recommended targets. We compared characteristics and nutrition processes during hospital stay (within and post-intensive care unit [ICU] stay) of those who received oral nutrition as the sole nutrition source to those who first commenced enteral (EN) or parenteral nutrition (PN) within an Australian or New Zealand (ANZ) ICU.Multicentre, observational study of routine nutrition care in 44 hospitals across ANZ, including adult patients within ICU admitted for at least 48 h. Those receiving oral nutrition as the sole source of nutrition (with or without oral nutrition supplements) were included in the 'oral nutrition' group and those who first received EN and/or PN in the ICU as the 'EN/PN group'. The primary outcome was median daily energy delivery in ICU. Data are presented as number (%) or median [interquartile range].Of the 409 patients enroled, median [IQR] age was 64 [51-74] years and 257 patients (62%) were male. APACHE II score, use of invasive ventilation and hospital length of stay (LOS) were all lower in those receiving oral nutrition (n = 200) compared to those receiving EN/PN (n = 209). In ICU, 63 (31.5%) and 169 (81%) (p < 0.001), patients who were receiving oral nutrition and in the EN/PN group received a nutrition assessment, respectively. Oral nutrition supplements were provided for 40 (20%) patients in the oral nutrition group and 31 of 94 (33%) of those receiving oral nutrition in the EN/PN group (p = 0.019). Energy and protein intake in ICU for the oral nutrition group was 716 [597-1069] kcal/day and 37 [19-46] g/day versus 1158 [664-1583] kcal/day and 57 [31-77] g/day for those receiving EN/PN (p = 0.020 energy, p = 0.016 protein). Quantification of oral nutrition was attempted in 78/294 (27%) patients in ICU and completed on 27/78 (36%) occasions. On the ward, attempts were made for 120/273 (44%) patients, with 60/120 (50%) complete.Patients who received oral nutrition as the sole nutrition source in ICU had lower illness severity, rates of nutrition assessment and provision of oral supplements compared to those who first received EN/PN. Quantification of oral nutrition was often incomplete for all patients in ICU and on the ward.3 - Publication
Book chapter 54 - Publication
Journal Article Alcohol-related injury hospitalisations in relation to alcohol policy changes, Northern Territory, Australia, 2007-2022: A joinpoint regression analysis.(2024-12-10); ; ; ;Kaur, Guddu ;Field, Emma ;Boffa, John; ; The Northern Territory (NT) of Australia has the highest rates of alcohol consumption and injury in the country. We aimed to: (i) describe the epidemiology of alcohol-related injury (ARI) hospitalisations in the NT; (ii) estimate the proportion of alcohol involvement in injury hospitalisations; and (iii) consider the influence of alcohol policies on ARI hospitalisation trends.We conducted a retrospective time-series study using coded hospitalisation data from NT public hospitals between 2007 and 2022. ARI hospitalisation was defined combining indicators for injury and acute alcohol use. We undertook descriptive analyses and calculated alcohol involvement against all injury hospitalisations. Annual percent changes (APC) were computed using joinpoint regression to examine the influence of alcohol policies on ARI hospitalisation trends by NT geographical regions (Central Australia and Top End).Alcohol use was associated with 22.6% of all injury hospitalisations. The most common cause of ARI hospitalisations was assault (46%). In Central Australia, a significant trend decline (APC -12.2; p = 0.011) was observed after 2017 following alcohol policies implemented between 2017 and 2018 (Banned Drinkers Register v2; Minimum Unit Price; and Police Auxiliary Liquor Inspectors). Consecutive years with the greatest decrease in Central Australia were 2013-2014 (APC -25.8) and 2018-2019 (APC -35.1); likely influenced by alcohol policies in effect at the time. In the Top End, a non-significant trend decline (APC -26.1; p = 0.186) was observed after 2020.Alcohol policies implemented between 2017 and 2018 were associated with reduced ARI hospitalisations in Central Australia. Alcohol policies that demonstrated reduced harm should be sustained.20 - Publication
Journal Article Operative caseload of general surgeons working in a rural hospital in Central Australia.(2024-12-06); ;Arayne, Aisha Abdulmoeed ;Paredes, Steven ;Barbaro, Antonio ;Elgindy, Yara ;Tran, StevenThere is limited published data on the caseload of general surgeons in Central Australia. The region has a significant Indigenous population, who often face higher rates of chronic diseases and require more frequent surgical interventions compared to non-Indigenous individuals. This study aims to outline the workload of surgeons at Alice Springs Hospital to determine the necessary skill set and surgical education for future surgeons.A retrospective review of all general surgery operative cases performed in Central Australia, Alice Springs Hospital was conducted between January 2012 and December 2021. The RACS Morbidity Audit and Logbook Tool was used to classify surgical procedures along with Medicare Benefits Schedule item numbers. Tables were created to present the annual and specialty-specific data on the types and volumes of procedures.From January 2012 to December 2021, 35 318 cases were performed, with 92.5% being general surgery, 3% plastics and reconstructive surgery and 2.8% vascular procedures. Indigenous patients received a higher proportion of procedures (50-60%) compared to non-Indigenous patients (30-50%). Common procedures included incision and drainage of abscesses and debridement of wounds, while trends across specialties showed a decline in ENT and plastic surgeries, stable thoracic and vascular cases, and increased numbers of urology operations.General surgeons in rural centres must possess a wide range of skills and be capable of performing a variety of procedures. Trainees should be encouraged to consider practicing in rural areas, and those interested should account for the specific needs of the communities they plan to serve.13 - Publication
Journal Article Optimising risk stratification in diabetic ketoacidosis: a re-evaluation of acid-base status and hyperosmolarity using observational data.(2024-12-06); Blank, RuthAccurate assessment of severity in diabetic ketoacidosis (DKA) can optimise early management and facilitate prioritisation for high acuity care. The primary aim was to evaluate the relationship between severity of acidosis (considering pH, bicarbonate, and anion gap) and hyperosmolarity with hospital mortality. Secondary outcomes included intensive care mortality, mechanical ventilation, vasopressor/inotrope use, and dialysis. A retrospective cohort study was conducted of adults (≥ 16 yr) with DKA admitted to US intensive care units. Data were extracted from the Medical Information Mart for Intensive Care (MIMIC)-IV dataset and eICU Collaborative Research Database. Univariable and multivariable logistic regression analyses were used to evaluate biochemistry obtained within 4 h of admission and the primary and secondary outcomes. We identified 4071 eligible admissions. There was no clear relationship between serum bicarbonate or anion gap and any outcome. Almost half the population did not have blood gas analysis within 4 h of admission; for 2292 patients with blood gases available, pH < 7 and inappropriately high PCO were associated with significant increases in mortality and all secondary outcomes. Osmolarity ≥ 320mosm/L was associated with fourfold increased mortality and higher rates of mechanical ventilation, use of vasopressors/inotropes, and dialysis. Failure of adaptive mechanisms (thirst and hyperventilation) indicating physiological decompensation may be more important for risk stratification in DKA than the degree of acidosis, which was only associated with outcome when severely abnormal. Blood gas analysis is essential to adequately assess disease severity as bicarbonate and anion gap were not predictive of outcome.9 - Publication
Journal Article Applicability and Validity of the "Bronchiectasis Severity Index" (BSI) and "FACED" Score in Adult Aboriginal Australians.(2024-12-04) ;Howarth, Timothy; ;Abeyaratne, AsangaThe prevalence of bronchiectasis is significantly higher among adult Aboriginal Australians (the Indigenous peoples of Australia) compared to non-Aboriginal Australians. Currently, there is no well-established tool to assess bronchiectasis severity specific to Indigenous peoples. Nor has the applicability and validity of the two well-established bronchiectasis severity assessment tools - The "Bronchiectasis Severity Index" (BSI) and "FACED" scale been vigorously tested in an Indigenous population. This retrospective study evaluated the validity of the BSI and FACED amongst an adult Aboriginal Australian cohort with bronchiectasis in the Top End Northern Territory (NT) of Australia.Patients with CT confirmed bronchiectasis identified between 2011 and 2020, residing in the Top End of the NT were eligible to be enrolled. The primary endpoint of 4-year mortality was assessed via hospital records, and sensitivity and specificity of the BSI and FACED assessed against this using area under the curve (AUC) receiver operating characteristics analysis. For patients with missing data, a relative BSI / FACED score was used which divided the score recorded for that patient by the total potential score based on their available clinical data.A total of 456 adult Aboriginal Australian patients >18 years of age were included (55.5% female, median age 49 years). According to the BSI score 43.4% of patients were assessed to have mild, 30.5% moderate and 26.1% severe bronchiectasis (median score 4 (IQR 2, 8)). According to the FACED 80.9% were assessed to have mild, 17.8% moderate and 1.3% severe (median score of 1 (IQR 0, 2)). Four-year mortality was 11.2% (median age of death 55.6 years). Sensitivity and specificity of the BSI combining moderate and severe were 86.3 and 47.2% respectively, and for severe alone 51% and 77%. Sensitivity and specificity of the FACED combining moderate and severe were 21.6% and 81.2%, respectively, and for severe alone 2% and 98.8%. The AUC for the continuous total BSI was 0.703, and the FACED 0.515. Utilising a relative score, based only on data available for patients with missing data (ie lung function or BMI) resulted in slightly improved AUCs for both the BSI (0.717) and FACED (0.571).Both BSI and FACED bronchiectasis assessment tools may not be ideal in an Indigenous/Aboriginal people's context. However, it may be reasonable to utilise the relative BSI score in this population until Indigenous people's specific bronchiectasis severity assessment tools are developed.Adult Indigenous people globally have a higher prevalence of chronic respiratory disorders, and bronchiectasis is no exception. To assess the bronchiectasis severity and to predict future mortality, there are well-established assessment tools. However, the existing bronchiectasis assessment tools are developed predominately from data gathered from non-Indigenous population cohorts. To date, it is unclear if these existing bronchiectasis assessment tools are appropriate or applicable for Indigenous people. Therefore, this study assessed how existing bronchiectasis tools, namely the “Bronchiectasis Severity Index” (BSI) and “FACED” [Forced expiratory volume in 1 s, Age, Chronic colonization, Extension, and Dyspnea] fit for an adult Indigenous/ Aboriginal Australian cohort diagnosed to have bronchiectasis. The results of the study showed that both BSI and FACED assessment tools may not be ideal in the Australian Indigenous/Aboriginal population, due to population demographics and other social determinants, including geographical isolation. Hence, further research is warranted in developing Indigenous/Aboriginal specific bronchiectasis assessment tools.3 - Publication
Journal Article Is Respiratory Viral Infection an Inciting Event in the Development of Melioidosis? A Systematic Evaluation of Co-infection With and SARS-CoV-2 or Influenza.(2024-12-04); ; ;Woerle, Celeste ;Hinchcliff, Alexandra; ; Respiratory viral infection may increase infection with progressing to clinical disease (melioidosis). This data linkage study evaluated associations between melioidosis and SARS-CoV-2 or influenza. Among 160 melioidosis cases, there was no difference in risk factors, vaccine status, or disease severity between 17 with viral co-infection and 143 without.8 - Publication
Journal Article The psychological impact of supervised quarantine facilities for the mitigation of COVID-19: A systematic review.(2024-12-01); ;Bressington, DanielGovernment mandated quarantine outside the home was implemented to mitigate COVID-19 in some countries. Individual studies report that this can result in psychological distress. Investigating levels of distress and associated risk factors across different settings would inform public health models of care during future pandemics. However, no previous systematic reviews have been conducted on the topic. Therefore, we systematically reviewed international research on the prevalence and risk factors of psychological distress within supervised quarantine facilities during the COVID-19 pandemic.A systematic review of the literature was conducted using Medline, Psychological and Behavioural Sciences, Psych Info, Cochrane databases and Google Scholar from January 2020 until June 2023. Relevant quantitative studies published in English were included.13 studies (pooled participants = 4366) were included in this review. The prevalence of psychological distress varied widely across the included studies (depression 4%-63%; anxiety 4%-100%; stress 1%-68%). Associated risk factors identified were also heterogeneous between studies and facilities.In future pandemics, the benefits of infection mitigation need to be weighed against the risk of psychological distress. Models of care utilising specifically designed facilities, with greater freedoms, increased comfort and ease of access to mental health services may limit psychological distress.10 - Publication
Journal Article A clinical approach to chronic respiratory disorders in Aboriginal and Torres Strait Islander Australians in primary care.(2024-12-01) ;Chen, Winnie; Howarth, TimothyChronic respiratory disorders in the adult Aboriginal and Torres Strait Islander population are common, but there is a sparsity of literature detailing an approach to clinical management.This paper describes a clinical approach to chronic respiratory disorders for clinicians working with Aboriginal and Torres Strait Islander people, particularly in the remote Australian context.There are significant differences in the way chronic respiratory diseases manifest in Aboriginal and Torres Strait Islander people compared with non-Indigenous Australians. Chronic obstructive pulmonary disease (COPD), bronchiectasis and asthma often overlap in clinical features, and can be present concurrently. Restrictive impairment on spirometry is common. The presence of bronchodilator response might indicate asthma, but can also be observed in patients with asthma/COPD/bronchiectasis overlap. Because the management of each of these conditions differs, accurate diagnosis and disease severity classification are important, particularly in the prescribing of guideline-recommended inhaled pharmacotherapy.2 - Publication
Journal Article Aeromedical retrieval for suspected preterm labour or rupture of membranes in the Northern Territory, Australia: may some cases be safely not retrieved?(2024-11-30) ;Langston-Cox, Annie ;Warton, Emily ;Tipping, Nadine ;Odgers, Harrison L; ;Goni, Sherihan; ; Suspected preterm labour (PTL) and prelabour rupture of membranes (PPROM) are common indications for aeromedical retrieval in the Top End, Northern Territory, Australia, where many women reside remotely and preterm birth (< 37 completed weeks of gestation) is common. The primary objective of this study was to determine rate of delivery during the index admission following aeromedical transfers from remote clinics to Royal Darwin Hospital for suspected PTL/PPROM.A retrospective cohort study of aeromedical transfers for suspected PTL/PPROM from 1 January 2020 to 31 July 2022 was undertaken. Transfers were identified through CareFlight, the regional air ambulance service, and complemented with data from hospital records. Clinical and sociodemographic characteristics were compared by delivery status during the index (post-retrieval) admission using parametric and non-parametric tests and multivariable linear regression analysis.238 women with singleton pregnancies were retrieved for suspected PPROM (n = 77, 32.4%) or PTL (n = 161, 67.6%), together accounting for 49.2% of all obstetric transfers (n = 483). Of 77 patients transferred for suspected PPROM, 47 (61.0%) had ruptured membranes confirmed on arrival, and 45 (95.7%) of them delivered during the index admission. None of the 30 women transferred for suspected PPROM with intact membranes on arrival delivered during the index admission. Of 161 patients transferred for suspected PTL, 13 (8.1%) had ruptured membranes confirmed on arrival, and 12 (92.3%) of them delivered during the index admission. Amongst women transferred for suspected PTL with intact membranes confirmed on arrival, 14.9% (22/149) delivered during the index admission. Prior to arrival, 120 women (50.4%) had a documented speculum examination, and 15 (6.3%) and 9 (3.8%) had cervicovaginal swab tests to assess their risks of a PPROM and PTL, respectively. Half of women who did not deliver during the index admission had received antenatal corticosteroids (n = 76).Many aeromedical retrievals for suspected PTL/PPROM did not result in delivery during the index admission. Women retrieved for suspected PPROM with intact membranes on arrival were less likely to deliver. Upskilling remote clinic staff and better point-of-care testing may reduce retrievals and unnecessary interventions. Prospective cohort studies designed to enable accurate prediction of which cases can be safely not retrieved are required.Not applicable.14 - Publication
Journal Article Study protocol: Return to Country, an Australia-wide prospective observational study about returning First Nations renal patients home.(2024-11-24) ;Jones, Yomei ;Truong, Mandy ;Preece, Cecilia ;Cass, Alan ;Heerink, Fiona ;McDonald, Stephen ;Jones, Scott ;Mallett, Andrew John; ; ;Patankar, Khalil ;Mulholland, Eddie ;Woldeyohannes, SolomonLawton, PaulIn Australia, kidney failure treatment disparities exist between Aboriginal and/or Torres Strait Islander (First Nations) and non-First Nations people. Despite persistent calls from First Nations patients with kidney failure, they are less likely to have treatment that allows them to live at home.This is a prospective, multicentre study based in Australia. The aim of the study is to characterise the socioeconomic, environmental, health service and biomedical factors driving the health outcomes and patterns of health service utilisation experienced by First Nations patients and investigate whether health service changes to address these identified barriers can achieve higher rates of renal replacement therapy at home on country. This will be achieved by mixed-methods data collection at health service (audit and process data), staff (surveys and qualitative interviews) and patient (survey testing, feedback sessions, health outcomes) levels. A process evaluation will identify barriers and enablers to health services changes in relation to cultural safety. Baseline and follow-up data will be compared to assess the extent to which health services change their service delivery and the impact on health outcomes for First Nations patients with kidney failure. Qualitative and quantitative data will be integrated to provide an in-depth understanding of project outcomes and impacts.This study is funded by the National Health and Medical Research Council of Australia (GNT1158075). Ethics approval has been obtained so far from the Human Research Ethics Committee (HREC) of the Northern Territory Department of Health and Menzies School of Health Research (2019-3530), Far North Queensland HREC (2023/QCH/99606 (Nov ver 4)-1732), the Central Adelaide Local Health Network HREC (2023/HRE00209), the Aboriginal Health Council of South Australia (AHREC Protocol #: 04-23-1078), the Aboriginal Health and Medical Research Council of New South Wales (AH&MRC HREC reference: 2230/24) and the Far North Queensland Human Research Ethics Committee (FNQ HREC reference: HREC/2023/QCH/99606 (Nov ver 4)-1732). Study participants, policy makers and community organisations will be provided with updates of study findings. Dissemination of study findings will be through peer-reviewed publications and conference presentations.ACTRN12623001241628.4 - Publication
Journal Article General Practice Sleep Scale - The "GPSS" - A proposed new tool for use in General Practice for risk assessment of Obstructive Sleep Apnoea.(2024-11-21) ;Howarth, Timothy ;Hedger, Joe ;Chen, Winnie ;Garg, HimanshuThis pilot study investigated a new simplified OSA screening tool that could be used in primary care/GP settings - the "GPSS" tool - "General Practice Sleep Scale" and compared against common existing OSA screening tools.A convenience sample of patients attending the respiratory and sleep clinic in the Northern Territory of Australia were included if they completed the GPSS prior to undergoing a diagnostic polysomnography. The GPSS contained 9 questions to provide information on: sex, age, body mass index, neck circumference, snoring, witnessed apnoeas, morning tiredness, daytime sleepiness and presence of hypertension/diabetes/heart disease/depression. Presence of OSA was defined as an apnoea-hypopnoea index of ≥15/hour. The GPSS scoring was developed via log odds of regression predictions for each GPSS question upon OSA.159 patients (65 % male, median age 45 years) were enrolled. A minimum score of 1 was assigned to GPSS questions, up to 5 for the strongest predictor (neck circumference). The median total GPSS score was 13 (IQR 9, 16) (maximum 22) and correlated strongly with OSA (AUC 0.812 (95 % CI 0.744, 0.881)). Categorised into low (0-7), moderate (8-13) or high risk (>13), a moderate or severe score had sensitivity 100, specificity 34.9 %. The GPSS significantly outperformed the Epworth Sleepiness Scale, Berlin questionnaire and OSA-50, and was comparable but slightly improved against the STOP-Bang.The proposed GPSS tool could be of use in general practice settings. Further prospective research is warranted to test the applicability and adaptability of the GPSS tool in wider population settings.13 - Publication
Journal Article Microstructural brain changes following prospective memory rehabilitation in traumatic brain injury: An observational study.(2024-11-20) ;To, Xuan Vinh ;Zhu, Ning ;Mohamed, Abdalla Z ;Fleming, Jennifer ;Hamilton, Caitlin ;Swan, Sarah ;Campbell, Megan E J; ;Ownsworth, Tamara ;Shum, David H KNasrallah, FatimaProspective memory (PM) impairment is a common consequence of moderate-severe traumatic brain injury (TBI). Compensatory strategy training and rehabilitation (COMP) is the usual treatment of PM deficits through environmental modification and the use of assistive methods such as diaries and routines. The study intends to examine the changes in white matter integrity, as measured by advanced diffusion magnetic resonance imaging (dMRI) following COMP intervention in moderate-severe TBI patients. Nine COMP intervention and twelve routine care comparison cohort moderate-severe TBI patients were recruited from level 1 trauma centres in the Brisbane metropolitan area. Both groups were imaged at least one-month post-TBI for a baseline scan. COMP group was imaged again after a 6-week COMP intervention program and the comparison group was imaged again at least 6 weeks after the baseline scan. MRI scan included structural imaging and dMRI, which the latter fitted for the Neurite Orientation Dispersion and Density Imaging (NODDI) model. Only the comparison group had decreased Neurite Density Index in the major white matter tracts and increased isotropic diffusion in the fluid space between the cortical folds. Our results indicated that COMP intervention slowed down the neural degeneration in moderate-severe TBI patients as compared to routine medical care/rehabilitation.2 - Publication
Journal Article Digital health interventions to improve recovery for intensive care unit survivors: A systematic review.(2024-11-19) ;Leggett, Nina ;Abdelhamid, Yasmine Ali ;Deane, Adam M ;Emery, Kate ;Hutcheon, Evelyn ;Rollinson, Thomas C ;Preston, Annabel ;Witherspoon, Sophie ;Zhang, Cindy ;Merolli, MarkHaines, Kimberley JRecovery models of care for intensive care unit (ICU) survivors are limited by availability, accessibility, and efficacy. Digital health interventions represent an alternative mode of service delivery. The primary aim of this systematic review was to describe implementation factors (Reach, Effectiveness, Adoption, Implementation, and Maintenance) for digital health interventions for ICU survivors. The secondary aim was to describe any effect on patient-reported health outcomes.A systematic search of Medical Literature Analysis and Retrieval System Online (MEDLINE), Excertpa Medica Database (EMBASE), Cumulative Index of Nursing and Allied Health Literature (CINAHL), and Cochrane Central Register of Systematic Reviews (CENTRAL) databases was undertaken in March 2023.Two independent reviewers screened abstracts and full texts against eligibility criteria. Studies of adult survivors with any post-ICU discharge care, delivered via a digital mode, were included. Studies were excluded if published before 1990 or not in English.Quantitative data were extracted using predefined data fields. Risk of bias was assessed using the Newcastle-Ottawa Scale and Cochrane Risk of Bias Tool 2.0. Implementation factors were reported according to the Reach, Effectiveness, Adoption, Implementation and Maintenance framework.A total of 6482 studies were screened. Ten studies, with 686 participants, were included. Implementation factors were reported in all studies. Acceptability (reported in six studies) was high, with high satisfaction and usability scores, defined a priori by investigators. Eight studies reported intervention adherence rates between 46% and 100%. Nine studies report final outcome measurement retention rates up to 12 months, between 52% and 100%. Five studies included the primary outcome as the difference in a patient-reported health outcome. Appraisal of efficacy and digital health literacy was limited due to substantial methodological variation and a lack of reporting in included studies. There was some risk of bias in 50% of studies.Digital health interventions can be successfully implemented for critical care survivors and have varying intervention adherence and retention rate success. To broaden reach, future research should include cultural diversity and investigate digital health access, literacy, and cost-effectiveness. INTERNATIONAL PROSPECTIVE REGISTER OF SYSTEMATIC REVIEWS REGISTRATION: CRD42022348252.1 - Publication
Journal Article Cerebral palsy in Australia: birth prevalence, 1995-2016, and differences by residential remoteness: a population-based register study.(2024-11-18) ;Smithers-Sheedy, Hayley ;Waight, Emma ;Goldsmith, Shona ;Reid, Sue ;Gibson, Catherine ;Scott, Heather ;Watson, Linda ;Auld, Megan; ;Wiltshire, Clare ;Hinwood, Gina ;Webb, Annabel ;Martin, Tanya ;Badawi, NadiaMcIntyre, SarahTo examine recent changes in the birth prevalence of cerebral palsy in Australia; to examine the functional mobility of children with cerebral palsy by residential remoteness.Population-based register study; analysis of Australian Cerebral Palsy Register (ACPR) data.Children with cerebral palsy born in Australia, 1995-2016, and included in the ACPR at the time of the most recent state/territory data provision (31 July 2022).Change in birth prevalence of cerebral palsy, of cerebral palsy acquired pre- or perinatally (in utero to day 28 after birth), both overall and by gestational age group (less than 28, 28-31, 32-36, 37 or more weeks), and of cerebral palsy acquired post-neonatally (day 29 to two years of age); gross motor function classification by residential remoteness.Data for 10 855 children with cerebral palsy born during 1995-2016 were available, 6258 of whom were boys (57.7%). The birth prevalence of cerebral palsy in the three states with complete case ascertainment (South Australia, Victoria, Western Australia) declined from 2.1 (95% confidence interval [CI], 1.9-2.4) cases per 1000 live births in 1995-1996 to 1.5 (95% CI, 1.3-1.7) cases per 1000 live births in 2015-2016. The birth prevalence of pre- or perinatally acquired cerebral palsy declined from 2.0 (95% CI, 1.7-2.3) to 1.4 (95% CI, 1.2-1.6) cases per 1000 live births; statistically significant declines were noted for all gestational ages except 32-36 weeks. The decline in birth prevalence of post-neonatally acquired cerebral palsy, from 0.15 (95% CI, 0.11-0.21) to 0.08 (95% CI, 0.05-0.12) cases per 1000 live births, was not statistically significant. Overall, 3.4% of children with cerebral palsy (307 children) lived in remote or very remote areas, a larger proportion than for all Australians (2.0%); the proportion of children in these areas who required wheelchairs for mobility was larger (31.3%) than that of children with cerebral palsy in major cities or regional areas (each 26.1%).The birth prevalence of cerebral palsy declined markedly in Australia during 1995-2016, reflecting the effects of advances in maternal and perinatal care. Our findings highlight the need to provide equitable, culturally safe access to antenatal services for women, and to health and disability services for people with cerebral palsy, across Australia.4 - Publication
Journal Article Parenteral aciclovir for suspected herpes simplex virus infection in children: 0-18 years.(2024-11-18) ;Berkhout, Angela ;Clark, Julia E ;Jones, Cheryl A ;Grimwood, Keith ;McMullan, Brendan ;Britton, Philip N ;Palasanthiran, Pamela ;Lim, Selina ;Yeoh, Daniel K ;Wong, Shirley ;Cheng, Daryl R ;Gwee, Amanda ;Cross, Jack ;Nguyen, Tran ;Jeffs, Emma ;Walls, Tony ;Mahony, Michelle; Nourse, ClareVariations in neonatal aciclovir prescribing for suspected herpes simplex virus (HSV) disease are well-known, but there are limited data describing aciclovir prescribing in older children.Medical records of neonates (≤28 days) and children (29 days to 18 years) prescribed intravenous aciclovir for suspected HSV disease (1 January 2019-12 December 2019) in eight Australian and New Zealand hospitals were reviewed. Prescribing indication, HSV testing, aciclovir prescription details, adverse events and discharge diagnosis were recorded.1426 received empirical aciclovir. For neonates (n = 425), the median duration was 1 day (IQR 1-3), 411/425 underwent HSV investigations and 13/425 had HSV disease (two with disseminated encephalitis, four with encephalitis and seven with skin, eye, mouth disease). Of the 1001 children, 906 were immunocompetent. 136/906 suspected of mucocutaneous disease received aciclovir for a median of 2 days (1-2), 121/136 underwent HSV testing, and 69/136 had proven disease. 770/906 received aciclovir for suspected disseminated disease or encephalitis for a median of 1 day (1-2), 556/770 underwent HSV testing, and 5/770 had disseminated disease or encephalitis. Among 95 immunocompromised children, 53/58 with suspected mucocutaneous disease had HSV testing and this was confirmed in 22. Disseminated disease or encephalitis was suspected in 37/95, HSV testing conducted in 23/37 and detected in one. The median aciclovir duration was 3 (2-7) days for immunocompromised children. Nephrotoxicity occurred in 7/1426 and 24/1426 had an extravasation injury.Frequent and often unnecessary intravenous aciclovir prescribing for suspected HSV encephalitis or disseminated disease occurred in children, as evidenced by incomplete HSV investigations and only 5/770 older children having the diagnosis confirmed.3 - Publication
Journal Article Neurosurgery in Australia's Top End: the lifesaving advantages of developing sustainable neurosurgical care in rural and remote regions.(2024-11-15) ;Peselzon, Oleg ;Toro Tole, David ;Rissel, Chris; ;Maclachlan, LiamRedmond, MichaelThe authors' goal was to perform a retrospective audit of all emergency cranial neurosurgery performed at the Royal Darwin Hospital in the first 5 years of the unit and to compile their data in a similar fashion to an earlier study titled "Emergency Neurosurgery in Darwin: Still the Generalist Surgeons' Responsibility," which was published in 2015.All emergency cranial neurosurgery performed by a neurosurgeon between 2017 and 2021 was identified. Data were extracted from the National Critical Care and Trauma Response Centre database. Statistical analyses were descriptive logistic regression performed using Stata version 15.1 software to examine factors associated with death.A total of 320 patients (42% Indigenous) underwent 427 emergency neurosurgeries. There were 35 emergency neurosurgeries in 2017 and 82 in 2021. The most common procedure performed was insertion of an external ventricular drain, followed by craniotomy and removal of intracranial hematoma. Mortality was 7.5% overall and 8.4% among patients with trauma. Only age proved to be a statistically significant independent risk factor for death (t = -2.95, p < 0.0041; OR 1.06, p = 0.02). Location, sex, injury severity, and presenting Glasgow Coma Scale score were not associated with death. Indigenous and non-Indigenous patients had similar outcomes.The data illustrate the importance of developing small but sustainable neurosurgical units in rural and remote areas. A dedicated neurosurgical unit at the Royal Darwin Hospital has led to an increase in the amount and variety of emergency neurosurgery performed in Darwin. Interstate transfers have reduced. This has tangible lifesaving and economic advantages.4 - Publication
Journal Article Opportunistic post mortem scavenging by the terrestrial flatworm Platydemus manokwari.(2024-11-14); ;Byard, Roger W ;Willan, Richard CWinsor, LeighPost mortem damage by predators varies with geography, climate, and location of cadavers. Frequently encountered facultatively parasitic terrestrial organisms include fly larvae (maggots), ants and beetles. This report describes for the first time opportunistic post mortem damage caused by the terrestrial flatworm Platydemus manokwari de Beauchamp,1963 (New Guinea Flatworm) (phylum Platyhelminthes: order Tricladida: suborder Continenticola: family Geoplanidae) to exposed skin of a body located in a tropical urban location. Several flatworms were attached to the body associated with areas of skin loss. Microscopy showed epidermal damage with no vital reaction and the presence of PAS-positive granules consistent with flatworm secretions. No human DNA profile was recovered with genetic testing of two of the flatworms. This case extends the range of potential post mortem predators to include flatworms, albeit opportunistically.10 - Publication
Journal Article Goal-Directed Rehabilitation Versus Standard Care for Individuals with Hereditary Cerebellar Ataxia: A Multicenter, Single-Blind, Randomized Controlled Superiority Trial.(2024-11-09) ;Milne, Sarah C ;Roberts, Melissa ;Williams, Shannon ;Chua, Jillian ;Grootendorst, Alison C ;Agostinelli, Genevieve ;Grobler, Anneke C ;Ross, Hannah L ;Robinson, Amy ;Grove, Kristen ;Modderman, Gabrielle ;Price, Annabel ;Thomson, Megan ;Massey, Libby ;Liang, Christina ;Kumar, Kishore R ;Dalziel, Kim ;Burns, Joshua ;Sue, Carolyn M ;Pathirana, Pubudu N ;Horne, Malcolm ;Gelfard, Nikki ;Curd, Helen ;Szmulewicz, David ;Corben, Louise ADelatycki, Martin BRehabilitation is thought to reduce ataxia severity in individuals with hereditary cerebellar ataxia (HCA). This multicenter, randomized controlled superiority trial aimed to examine the efficacy of a 30-week goal-directed rehabilitation program compared with 30 weeks of standard care on function, ataxia, health-related quality of life, and balance in individuals with an HCA.Individuals with an autosomal dominant or recessive ataxia (aged ≥15 years) were enrolled at 5 sites in Australia. Participants were randomized (1:1) to receive rehabilitation (6 weeks of outpatient physiotherapy followed by a 24-week home exercise program) (n = 39) or continued their usual activity (n = 37). The primary outcome measure was the motor domain of the Functional Independence Measure (mFIM) at 7 weeks. Secondary outcomes included the Scale for the Assessment and Rating of Ataxia (SARA) and the SF-36v2, assessed at 7, 18, and 30 weeks. Outcome assessors were blinded to treatment allocation.Seventy-one participants (rehabilitation, 37; standard-care, 34) were included in the intention-to-treat analysis. At 7 weeks, mFIM (mean difference 2.26, 95% confidence interval [CI]: 0.26 to 4.26, p = 0.028) and SARA (-1.21, 95% CI: -2.32 to -0.11, p = 0.032) scores improved after rehabilitation compared with standard care. Compared with standard care, rehabilitation improved SARA scores at 30 weeks (mean difference -1.51, 95% CI: -2.76 to -0.27, p = 0.017), but not mFIM scores (1.74, 95% CI: -0.32 to 3.81, p = 0.098). Frequent adverse events in both groups were fatigue, pain, and falls.Goal-directed rehabilitation improved function at 7 weeks, with improvement in ataxia and health-related quality of life maintained at 30 weeks in individuals with HCA, beyond that of standard care. ANN NEUROL 2024.1 - Publication
Journal Article Adverse reactions to trimethoprim/sulfamethoxazole for melioidosis eradication therapy: an evaluation of frequency and risk factors.(2024-11-07); ;Bramwell, Joshua; ;Woerle, Celeste; ; ; Trimethoprim/sulfamethoxazole is the first-line agent for oral eradication therapy for melioidosis but has been associated with toxicity in this context. This study aimed to quantify adverse drug reactions (ADRs) to trimethoprim/sulfamethoxazole when used for treatment of melioidosis, and assess risk factors for ADR development. A retrospective review of antimicrobial associated ADRs was performed in all patients treated for melioidosis in the Northern Territory of Australia from January 2017 - September 2022. Over this time, 268 treatment episodes from 256 individuals were included. The frequency of clinician-attributed ADRs to trimethoprim/sulfamethoxazole (51% of exposed) was higher than for other antimicrobials used (ceftazidime 12%, meropenem 8% and doxycycline 12% of those exposed; p<0.0001). 44% of those treated with trimethoprim/sulfamethoxazole required drug cessation or dose reduction and 5 individuals (2%) had a severe cutaneous adverse reaction, with one fatality. Acute kidney injury was the most frequent ADR (25% of those exposed), with age and pre-existing renal disease independently associated with its development. Here we report very high rates of ADRs attributed to trimethoprim/sulfamethoxazole resulting in frequent discontinuation of this drug as part of oral eradication therapy for melioidosis. Further work is needed to balance the necessity and toxicity of this drug in this clinical context.4