Hot of Not: Physiological versus Meteorological Heatwaves-Support for a Mean Temperature Threshold

The aim of this study was to determine whether a revised heat warning threshold provides an enhanced predictive tool for increases in Emergency Department heat-related presentations in Canberra, Australia. All Emergency Department triage records containing the word "heat", as well as those diagnosing a heat related illness for the summer periods 2013/2014, 2014/2015, and 2015/2016 were searched. Then a medical record review was conducted to confirm that the patient's presentation was related to environmental heat, which was defined by the final clinical diagnosis, presentation complaint and details of the patient's treatment. Researchers then compared this presentation data, to a mean threshold formula. The mean threshold formula included the past three consecutive daily mean temperatures and the last measured temperature upon presentation. This formula was designed to take into account the variance of night-time lows, with concurrent daily ambient temperatures, and was used to determine whether there was a correlation between heat-related presentations and increasing mean temperatures. Heat-related presentations appeared to occur when the mean threshold temperature reached 25 °C (77 °F), with significant increases when the mean threshold reached 30 °C (86 °F). These results confirm that a mean temperature of 30 °C corresponds to a relevant local public health heat-related threat

A novel COVID-19 program, delivering vaccines throughout rural and remote Australia

BackgroundThe Royal Flying Doctor Service of Australia (RFDS) established a unique SARS-CoV-2 vaccination program for vaccinating Australians that live in rural and remote areas. This paper describes the preparation and response phases of the RFDS response.MethodsThis study includes vaccinations conducted by the RFDS from 01 January 2021 until 31 December 2021 when vaccines were mandatory for work and social activities. Prior to each clinic, we conducted community consultation to determine site requirements, patient characteristics, expected vaccination numbers, and community transmission rates.FindingsNinety-five organizations requested support. The majority (n = 60; 63.2%) came from Aboriginal Community Controlled Health Organizations. Following consultation, 360 communities were approved for support. Actual vaccinations exceeded expectations (n = 70,827 vs. 49,407), with a concordance correlation coefficient of 0.88 (95% CI, 0.83, 0.93). Areas that reported healthcare workforce shortages during the preparation phase had the highest population proportion difference between expected and actual vaccinations. Areas that reported high vaccine hesitancy during the preparation phase had fewer than expected vaccines. There was a noticeable increase in vaccination rates in line with community outbreaks and positive polymerase chain reaction cases [r (41) = 0.35, p = 0.021]. Engagement with community leaders prior to clinic deployment was essential to provide a tailored response based on community expectations

Remoteness and socioeconomic status reduce access to specialist mental health care across Australia

Objective: Estimate impact of socioeconomic factors and remoteness from tertiary hospital on incidence/duration of Australian mental health admissions. Methods: Retrospective analysis of incidence/duration of public mental health unit admissions (2018–19). Covariates included Indigenous population, potentially preventable hospitalisations (PPH) and socioeconomic disadvantage. Results: Regional distance from hospital was correlated with socioeconomic disadvantage (ρ: p < 0.01). Population identifying as Aboriginal or Torres Strait Islander was associated with distance from hospital, socioeconomic disadvantage and PPH (ρ: p < 0.01). Bed days per capita was explained (R2adj: 0.48) by distance and socioeconomic disadvantage (p < 0.0001). A 1% increase in distance from hospital was associated with a 0.37% decrease in per capita bed days. Admission rate per capita across Queensland and WA was explained (R2adj: 0.36) by distance, education/occupation and state (p < 0.05). Across Queensland and WA a 1% increase in distance from hospital was associated with a 0.05% decreased incidence of admission. Conclusions: Rural Australians face high mental illness burden, socioeconomic disadvantage and limited service provision. Overcoming the additional disadvantages of reduced likelihood of admission to and reduced time in hospital with increasing distance from hospital will require increased outreach proportional to remoteness

A cohort comparison study on women in threatened preterm labor given nifedipine or nifedipine and salbutamol tocolysis in air medical retrieval

Objective: Women with threatened preterm labor in remote Australia often require tocolysis in the prevention of in-flight birth during air medical retrieval. However, debate exists over the tocolytic choice. Methods: A retrospective analysis was undertaken on data containing women who required air medical retrieval for threatened preterm labor within Western Australia between the years 2013 and 2018. Results: A total number of 236 air medical retrievals were deemed suitable for inclusion; 141 received nifedipine, and 95 women received salbutamol + nifedipine. Tocolytic efficaciousness was reported in 151 cases, proportionally more (P \u3c .05) from the women who received salbutamol + nifedipine (n = 68, 71.6%) compared with the women who received nifedipine only (n = 83, 58.9%). Those receiving salbutamol + nifedipine were more likely to suffer maternal tachycardia (n = 87 [91.6%] vs. n = 62 [44.0%]), fetal tachycardia (n = 26 [27.4%] vs. n = 13 [9.2%]), nausea (n = 17 [17.9] vs. n = 5 [3.55%]), and vomiting (n = 12 [12.6%] vs. n = 2 [1.4%]). Three women who received salbutamol + nifedipine had serious side effects including echocardiographic changes, chest pain, and metabolic and lactic acidosis. Conclusion: Salbutamol + nifedipine tocolysis was proven to be more effective than nifedipine only. Although salbutamol + nifedipine had increased temporary side effects, most were nonsevere and managed in-flight

Aeromedical retrievals for gastrointestinal disorders in rural and remote Australia: the need for improved access to specialist advice

The Royal Flying Doctor Service (RFDS) provides medical care to populations without access to traditional health-care services. From 2014 to 2018 the RFDS conducted 6007 (≈1201/year) aeromedical retrievals for gastrointestinal (GI) disorders. More detailed research is needed to determine specific GI disorders that contributed to this caseload, and in particular inform whether the establishment of a GI specialist service is justified

The prevalence and pregnancy outcomes of intrahepatic cholestasis of pregnancy: a retrospective clinical audit review

Background To determine the prevalence and outcomes of intrahepatic cholestasis of pregnancy. Methods A review comparing intrahepatic cholestasis of pregnancy pregnancies to all other pregnancies in three tertiary care Australian hospitals over a 36-month period. Results There were 43,876 pregnancies. The prevalence of intrahepatic cholestasis of pregnancies (n = 319) was 0.7%. There were differences between intrahepatic cholestasis of pregnancy and non-intrahepatic cholestasis of pregnancy mothers including higher prevalence of South Asian (22.6% versus 3.1%, p

Indigenous Australians have a greater prevalence of heart, stroke, and vascular disease, are younger at death, with higher hospitalisation and more aeromedical retrievals from remote regions

Background: We aimed to determine whether heart, stroke, and vascular disease (HSVD) prevalence and emergency primary evacuation (EPE), hospitalisation, and mortality differ by patient characteristics. Methods: An Australian-wide incidence population based study, with prospective data collected form the 1 July 2019 to the 30 October 2020. Findings: Indigenous Australians reported significantly higher prevalence of HSVD at 229.0 per-1000 as compared to 152.0 per-1000 non-Indigenous Australians: risk ratio 1.5 (95% CI 1.2-1.8). 583 remote patients received an EPE for HSVD, consisting of 388 (66.6%; 95% CI: 62.6-70.4) males and 195 (33.0%; 95% CI: 29.6-37.4) females. There were 289 (49.6%; 95% CI 45.4- 53.7) patients who identified as Indigenous, and 294 (50.4%; 95% CI 46.3- 54.6) as non-Indigenous. The mean Indigenous age during EPE was 48.0 (95% CI 45.9-50.1) years old, significantly lower than the non-Indigenous mean age of 55.6 (95% CI 53.8-57.4). Indigenous patients hospitalised for HSVD were younger, the majority younger than 65 years (n=21175; 73.7% 95% CI 73.2-74.2) as compared to non-Indigenous patients (n= 357654; 33.1% 95% CI 33.0-33.15). When adjusted for HSVD prevalence, remote Indigenous patients had a higher hospitalisation rate as compared to non-remote Indigenous patients (rate ratio: 1.6; 95% CI 1.3-2.0) and remote non-Indigenous patients (rate ratio: 1.2; 95% CI 1.0-1.5). More Indigenous patients died of HSVD before the age of 65 years (n=1875; 56.5% 95% CI 54.8-58.2) as compared to non-Indigenous patients (n= 16161; 10.6% 95% CI 10.45-10.8). Interpretation: Indigenous Australians have a higher prevalence, and younger age during EPE, and hospitalisation for HSVD than non-Indigenous Australians. Funding: This is a self/internally-funded study, with the lead organisation being the Royal Flying Doctor Service (RFDS) of Australia. For the duration of the study period, the RFDS provided in-kind support including one full-time equivalent (FTE) and resources (office space, computer, research software, and office equipment). There was no external funding source that had a role in study design or data analysis or interpretation.</p

Stroke care equity in rural and remote areas - novel strategies

Acute stroke is one of the most common causes of disability worldwide and numbers are projected to increase. Modern and successful recanalizing treatments are available, but timely access to these treatments is most often restricted to urban populations. This disparity affects nearly half of the world’s population, particularly those living in rural and remote areas, and most often affects people with indigenous background. We provide information on this disparity in acute stroke care between rural, remote, and urban areas. We discuss potential new management strategies which could facilitate the timely delivery of acute stroke care to those residents beyond the better serviced urban areas. We focus on the concept of a mobile stroke unit (MSU), especially an Air-MSU. This aircraft solution could provide an imaging capability and immediate clinical expertise via linked telemedicine to diagnose and treat acute stroke patients at the emergency site. The Air-MSU is not only envisioned to allow intravenous thrombolysis in the field but also to allow pre-hospital triage to comprehensive stroke centres through use of contrast imaging to diagnose large vessel occlusion, facilitating endovascular thrombectomy. Moreover, issues regarding optimal operating environment as well as novel imaging and diagnostic devices, which could facilitate the implementation of an Air-MSU are discussed. Innovative health care solutions are urgently needed to close the treatment gap for stroke patients living in rural and remote regions worldwide