Characteristics of trauma mortality in the Northern Territory, Australia

Operative caseload of general surgeons working in a rural hospital in Central Australia

BACKGROUND

There 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.

METHODS

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.

RESULTS

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.

CONCLUSION

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.

The Impact of Climate Change on Aeromedical Retrieval Services in Remote Northern Australia: Planning for a Hotter Future

It is known that environmental heat is associated with increased morbidity manifesting as increasing demand on acute care health services including pre-hospital transport and emergency departments. These services play a vital role in emergency care, and in rural and remote locations, where resource capacity is limited, aeromedical and other retrieval services are a vital part of healthcare delivery. There is no research examining how heat impacts remote retrieval service delivery. The Northern Territory (NT) of Australia is characterised by very remote communities with limited acute healthcare capacities and is a region subject to regular extreme tropical heat. In this study, we examine the relationship between aeromedical retrievals and hot weather for all NT retrievals between February 2018 and December 2019. A regression analysis was performed on the number of retrievals by clinical reason for retrieval matched to the temperature on the day of retrieval. There was a statistically significant exposure response relationship with increasing retrievals of obstetric emergencies in hotter weather in the humid climate zone and surgical retrievals in the arid zone. Retrieval services appeared to be at capacity at all times of the year. Given that there are no obstetric services in remote communities and that obstetric emergencies are a higher triage category than other emergencies (i.e., more urgent), such an increase will impede overall retrieval service delivery in hot weather. Increasing surgical retrievals in the arid zone may reflect an increase in soft tissue infections occurring in overcrowded houses in the hotter months of the year. Given that retrieval services are at capacity throughout the year, any increase in demand caused by increasing environmental heat will have broad implications for service delivery as the climate warms. Planning for a hotter future must include building resilient communities by optimising local healthcare capacity and addressing housing and other socioeconomic inequities that amplify heat-related illness.

Disadvantaged by More Than Distance: A Systematic Literature Review of Injury in Rural Australia

Rural populations experience injury-related mortality and morbidity rates 1.5 times greater than metropolitan residents. Motivated by a call for stronger epidemiological evidence around rural injuries to inform prevention, a systematic review of peer-reviewed literature published between January 2010 and March 2021 was undertaken to explore the epidemiology of rural injury and associated risk factors in Australia. A subsequent aim was to explore definitions of rurality used in injury prevention studies. There were 151 papers included in the review, utilizing 23 unique definitions to describe rurality. People living in rural areas were more likely to be injured, for injuries to be more severe, and for injuries to have greater resulting morbidity than people in metropolitan areas. The increase in severity reflects the mechanism of rural injury, with rural injury events more likely to involve a higher energy exchange. Risk-taking behavior and alcohol consumption were significant risk factors for rural injury, along with rural cluster demographics such as age, sex, high socio-economic disadvantage, and health-related comorbidities. As injury in rural populations is multifactorial and nonhomogeneous, a wide variety of evidence-based strategies are needed. This requires funding, political leadership for policy formation and development, and implementation of evidence-based prevention interventions.

Drink and drug driving education in the Northern Territory: a qualitative study illustrating issues of access and inequity

OBJECTIVE

In the Northern Territory, people who commit drink driving offences are required to undertake an approved course or treatment to be eligible for a driver's licence, however, course uptake is low. We investigated barriers to program uptake.

METHODS

We conducted semi-structured interviews with 24 program attendees, course providers and government stakeholders. We used a framework analysis.

RESULTS

Program coverage in remote areas was limited, leading to inequitable access. The course cost affected uptake and exacerbated existing financial hardship. There were mixed views among government stakeholders on the program. While some held a view that offenders should 'pay the price', some also saw the user-pays model and high program cost as a clear barrier to accessibility.

CONCLUSIONS

The data from this study demonstrate how the current delivery model for drink and drug driving education increases inequities for those in regional and remote areas, and Aboriginal and Torres Strait Islander people.

IMPLICATIONS FOR PUBLIC HEALTH

Moving away from the current user-pays model to a subsidised or free model may facilitate greater access. Online delivery may increase accessibility; however, consultation is required to ensure the program is delivered equitably with consideration of language, literacy, cultural factors and access to technology.

Epidemiology of trauma in the subarctic regions of the Nordic countries

BACKGROUND

The northern regions of the Nordic countries have common challenges of sparsely populated areas, long distances, and an arctic climate. The aim of this study was to compare the cause and rate of fatal injuries in the northernmost area of the Nordic countries over a 5-year period.

METHODS

In this retrospective cohort, we used the Cause of Death Registries to collate all deaths from 2007 to 2011 due to an external cause of death. The study area was the three northernmost counties in Norway, the four northernmost counties in Finland and Sweden, and the whole of Iceland.

RESULTS

A total of 4308 deaths were included in the analysis. Low energy trauma comprised 24% of deaths and high energy trauma 76% of deaths. Northern Finland had the highest incidence of both high and low energy trauma deaths. Iceland had the lowest incidence of high and low energy trauma deaths. Iceland had the lowest prehospital share of deaths (74%) and the lowest incidence of injuries leading to death in a rural location. The incidence rates for high energy trauma death were 36.1/100000/year in Northern Finland, 15.6/100000/year in Iceland, 27.0/100000/year in Northern Norway, and 23.0/100000/year in Northern Sweden.

CONCLUSION

We found unexpected differences in the epidemiology of trauma death between the countries. The differences suggest that a comparison of the trauma care systems and preventive strategies in the four countries is required.

The associations of factors with previous alcohol use in the Northern Territory compared to other states - an observational study

BACKGROUND

Data on previous alcohol use in surgical patients who died in the Northern Territory (NT) are lacking and have important public health implications.

METHODS

The prevalence of previous alcohol (ab)use among surgical patients who died (n=560) was assessed in patients within the Northern Territory and the remainder of Australia (n=28,245) over nine years.

RESULTS

The likelihood of previous alcohol use (21.4%; 120 of 560), was the outcome measured and was higher in the Northern Territory than outside it (5.9%; 1,660 of 28,245). Factors associated with the outcome of previous alcohol use were: male gender (aOR 1.6); Aboriginal and Torres Strait Islander status (aOR 2.0); liver disease (aOR 7.8); comorbidities (aOR 2.5); and trauma (aOR 1.1), in both the Northern Territory (aOR 11.5) and all Australia (aOR 7.8). In the Northern Territory, alcohol use was high in both Aboriginal and Torres Strait Islander people (31%) and non-Aboriginal and Torres Strait Islander (16%) people (p=0.316).

CONCLUSION

Of surgical patients who died, the likelihood of being a previous alcohol user was double in the Northern Territory as opposed to other states. Alcohol misuse is widespread across all groups in the Northern Territory. Implications for public health: Previous alcohol (ab)use is a negative factor for survival in any racial group.

Next steps for drowning prevention in rural and remote Australia: A systematic review of the literature

OBJECTIVE

To examine unintentional drowning by remoteness in Australia.

DESIGN

A systematic review of both peer-reviewed and grey literature published between January 1990 and December 2019 (inclusive).

METHOD

Using Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, MEDLINE (Ovid), PubMed, EMBASE, Scopus, PsycINFO (ProQuest), SPORTDiscus and Google Scholar were searched for studies exploring fatal and non-fatal unintentional drowning by remoteness. Epidemiological data, common factors and prevention strategies were extracted and mapped to Australian standard geographical classifications (major cities, inner regional, outer regional, remote and very remote). Level of evidence was assessed using Grading of Recommendations Assessment, Development and Evaluation and prevention strategies aligned to the hierarchy of control.

RESULT

Thirty-two studies satisfied inclusion criteria (66% reporting epidemiology; 59% risk factors; and 44% prevention strategies). All (100%) included studies were assessed very low against Grading of Recommendations Assessment, Development and Evaluation. Findings indicate rural populations (ie, excluding major cities) have higher rates of drowning positively correlated with increasing remoteness. Common factors included age (child), natural water bodies, undertaking boating and watercraft activities and alcohol consumption. While a range of prevention strategies has been proposed, only one study outlined a rural drowning prevention strategy which had been implemented and evaluated. Strategies were generally low on the hierarchy of control.

CONCLUSION

Rural populations are proportionately overrepresented in drowning statistics. Proposed prevention strategies have unknown efficacy. Greater research into rural drowning of Australians is needed especially exploring behavioural motivations, program delivery, cost-effectiveness and evaluation. Development and use of a standard definition for remoteness are recommended. Rural populations use water extensively; therefore, there is an urgent need to keep them safe.

Emergency trauma care in rural and remote settings: Challenges and patient outcomes

INTRODUCTION

Trauma is a global public health concern, with higher mortality rates acknowledged in rural and remote populations. Research to understand this phenomenon and to improve patient outcomes is therefore vital. Trauma systems have been developed to provide specialty care to patients in an attempt to improve mortality rates. However, not all trauma systems are created equally as distance and remoteness has a significant impact on the capabilities of the larger trauma systems that service vast geographical distances. The primary objective of this integrative literature review was to examine the challenges associated with providing emergency trauma care to rural and remote populations and the associated patient outcomes. The secondary objective was to explore strategies to improve trauma patient outcomes.

METHODS

An integrative review approach was used to inform the methods of this study. A systematic search of databases including CINAHL, Medline, EmBase, Proquest, Scopus, and Science Direct was undertaken. Other search methods included hand searching journal references.

RESULTS

2157 articles were identified for screening and 87 additional papers were located by hand searching. Of these, 49 were included in this review. Current evidence reveals that rural and remote populations face unique challenges in the provision of emergency trauma care such as large distances, delays transferring patients to definitive care, limited resources in rural settings, specific contextual challenges, population specific risk factors, weather and seasonal factors and the availability and skill of trained trauma care providers. Consequently, rural and remote populations often experience higher mortality rates in comparison to urban populations although this may be different for specific mechanisms of injury or population subsets. While an increased risk of death was associated with an increase in remoteness, research also found it costs substantially less to provide care to rural patients in their rural environment than their urban counterparts. Other factors found to influence mortality rates were severity of injury and differences in characteristics between rural and urban populations. Trauma systems vary around the world and must address local issues that may be affected by distance, geography, seasonal population variations, specific population risk factors, trauma network operationalisation, referral and retrieval and involvement of hospitals and services which have no trauma designation.

CONCLUSIONS

The challenges acknowledged for rural and remote trauma patients may be lessened and mortality rates improved by implementing strategies such as telemedicine, trauma training and the expansion of trauma systems that are responsive to local needs and resources. Additional research to determine which of these challenges has the most significant impact on health outcomes for rural patients is required in an effort to reduce existing discrepancies. Emphasis on embracing and expanding inclusive planning for complex trauma systems, as well as strategies aimed at understanding the issues rural and remote clinicians face, will also assist to achieve this.

The impact of perceived heat stress symptoms on work-related tasks and social factors: A cross-sectional survey of Australia's Monsoonal North

Heat poses a significant occupational hazard for labour-intensive workers in hot and humid environments. Therefore, this study measured the prevalence of heat-stress symptoms and impact of heat exposure on labour-intensive industries within the Monsoonal North region of Australia. A cohort of 179 workers completed a questionnaire evaluating environmental exposure, chronic (recurring) and/or severe (synonymous with heat stroke) symptoms of heat stress, and impact within work and home settings. Workers reported both chronic (79%) and severe (47%) heat stress symptoms, with increased likelihood of chronic symptoms when exposed to heat sources (OR 1.5-1.8, p = 0.002-0.023) and decreased likelihood of both chronic and severe symptoms when exposed to air-conditioning (Chronic: OR 0.5, p = <0.001, Severe: OR 0.7, p = 0.019). Negative impacts of heat exposure were reported for both work and home environments (30-60% respectively), highlighting the need for mitigation strategies to reduce occupational heat stress in the Monsoonal North.

Quad bike injuries at an Australian regional hospital: a trauma registry review

BACKGROUND

Quad bikes are a prominent cause of morbidity and mortality in Australia in both agriculture and recreation. This study describes the clinical and epidemiological characteristics of quad bike injuries at the Royal Darwin Hospital (RDH).

METHODS

A retrospective review of the RDH Trauma Registry for all quad bike mechanism of injury from 1 January 2006 to 31 December 2015 was conducted. We analysed patient demographics, remoteness of injury, injury circumstances, patterns and severity of injury, surgical intervention, length of stay and outcome.

RESULTS

In total, 186 persons were injured, of whom 81% (n = 150) were male. There was an increase in quad bike incidents during the 10-year study period, and the greatest increase was seen in the 16-30 years age group. When helmet use was recorded, it was low at 36% (n = 47). Alcohol involvement was 40% (n = 74). Cases with alcohol involvement were 10 times less likely to have worn a helmet than those cases without alcohol involvement (95% confidence interval 3.8-29). The median Injury Severity Score was 8 (interquartile range 4-10). The median hospital length of hospital stay was 4 days (interquartile range 3-7). The majority, 57% (n = 106), did not require surgical intervention. The fatality rate was <5%.

CONCLUSION

Quad bike incidents presenting to RDH are increasing. This likely corresponds to the increased number of quad bikes in circulation, and has resulted in an increased demand on health care. Alcohol use and a lack of safety equipment continue to be potentially correctable factors.

Trauma-related admissions to intensive care units in Australia: the influence of Indigenous status on outcomes

OBJECTIVES

To investigate the admission characteristics and hospital outcomes for Indigenous and non-Indigenous patients admitted to intensive units (ICUs) after major trauma.

DESIGN, SETTING

Retrospective analysis of Australian and New Zealand Intensive Care Society (ANZICS) Adult Patient Database data from 92 Australian ICUs for the 6-year period, 2010-2015.

PARTICIPANTS

Patients older than 17 years of age admitted to public hospital ICUs with a primary diagnosis of trauma.

MAIN OUTCOME MEASURES

ICU and overall hospital lengths of stay, hospital discharge destination, and ICU and overall hospital mortality rates for Indigenous and non-Indigenous patients.

RESULTS

23 804 people were admitted to Australian public hospital ICUs after major trauma; 1754 (7.4%) were Indigenous Australians. The population-standardised incidence of admissions was consistently higher for Indigenous Australians than for non-Indigenous Australians (847 per million v 251 per million population; incidence ratio, 3.37; 95% CI, 3.19-3.57). Overall hospital mortality rates were similar for Indigenous and non-Indigenous patients (adjusted odds ratio [aOR], 1.04; 95% CI, 0.82-1.31). Indigenous patients were more likely than non-Indigenous patients to be discharged to another hospital (non-Indigenous v Indigenous: aOR, 0.84; 95% CI, 0.72-0.96) less likely to be discharged home (non-Indigenous v Indigenous: aOR, 1.17; 95% CI, 1.04-1.31).

CONCLUSION

The population rate of trauma-related ICU admissions was substantially higher for Indigenous than non-Indigenous patients, but hospital mortality rates after ICU admission were similar. Indigenous patients were more likely to be discharged to a another hospital and less likely to be discharged home than non-Indigenous patients.