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Planetary health is the business of the medical profession because the health of our patients is at risk
During the lifetime of many MJA readers, there have been remarkable improvements in human health. Since 1950, global average life expectancy has risen 25 years to its current level of 72 years, and global infant mortality rates have decreased substantially from around 210 per 1000 live births to just over 30 per 1000 now.1-3
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Anthony Capon is a member of the Editorial Advisory Committee. Anthony Capon and Richard Horton are members of the Commission on Planetary Health.
Building a medical workforce that understands the impact of climate change on health and health services and will create change
The Lancet has described action to address climate change as the greatest public health opportunity before us.1 However, to grasp this opportunity, health professionals, including doctors, must understand the impact of climate change on health and be competent to take action and advocate for change. Otherwise it will be a missed opportunity when an urgent and scaled response to mitigate and adapt to climate change is required if society is to avoid the most harmful consequences. Medical degrees (primary medical programs) in Australia and New Zealand are responsible for preparing doctors for entry into clinical practice and to care for patients and their communities. In response to the health threats posed by climate change, Medical Deans of Australia and New Zealand (MDANZ) has formed a working group, representing medical schools and medical student associations across both countries, to work collaboratively to develop curricula and resources to address this within primary medical programs. This article summarises this initiative.
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Understanding risk factors is key to defining the source and transmission route of Mycobacterium ulcerans
Mycobacterium ulcerans causes an infectious disease known internationally as Buruli ulcer, and also as Bairnsdale ulcer or Daintree ulcer in Australia. It causes severe destructive lesions of skin and soft tissue, resulting in significant morbidity, in attributable mortality and often in long term disability and cosmetic deformity.1 All age groups, including young children, are affected, and the emotional and psychological impact on patients and their carers is substantial (Box 1). Although treatment effectiveness has improved in recent years, with cure rates approaching 100% using combination antibiotic regimens such as rifampicin and clarithromycin,2 these antibiotics are not covered by the Pharmaceutical Benefits Scheme for this condition and are, therefore, expensive to patients. Moreover, these antibiotics have severe side effects in up to one-quarter of patients,1 and many people also require reparative plastic surgery, sometimes with prolonged hospital admissions. The disease thus results in substantial costs, averaging $14 000 per patient including direct3 and indirect costs (eg, transport, lost productivity and dressings) — it had an estimated cost to Victoria in 2016 of $2 548 000 (Paul Mwebaze, Research Scientist, Adaptive Urban and Social Systems, Land and Water, CSIRO, Australia, personal communication, June 2017).
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Australia is set to join a global initiative to track progress on health and climate change
When it comes to climate change and human health, Australia has, in many respects, an impressive track record. The late Professor Tony McMichael led the international community in research and advocacy on this issue.1,2 In 2016, the Royal Australasian College of Physicians Climate Change and Health Working Party released position statements on climate change and health and the health benefits of mitigating climate change.3,4 Scientific articles on Australian health and climate change have been published since the mid-1990s, including in the MJA.5
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We acknowledge the current team members who are developing the Australian countdown report.
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The integration of genome sequencing with clinical records and data from the internet of things will transform health care
There is a great deal of optimism about the potential of genomics to transform medicine and health care. That optimism is justified. Indeed, it is hard to imagine a future where personal genomic information is not consulted routinely at the point of care. Every one of us is different, with personal genetic idiosyncrasies and risks — of cancer, cardiac arrest, blood clots, emphysema, diabetes, arthritis or toxic reactions to medications, among many others; the list will only continue to grow. Knowledge of individual genetic variation will change medicine from the art of crisis response to the science of health management, with huge benefits, both individually and systemically. It will also create new enterprises at a time of rapid change in the largest and fastest growing industry in the world.
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We thank Howard Jacob for his comments on the manuscript. This work was supported by funding from the Kinghorn Foundation, the New South Wales State Government and the National Health and Medical Research Council of Australia.
The Garvan Institute of Medical Research is the owner of Genome.One, which is clinically accredited (ISO15189) to provide whole human genome sequencing and analysis.
Introduction: Research in the past decade supports some major changes to the primary care management of non-specific low back pain (LBP). The present article summarises recommendations from recently published United Kingdom, Danish, Belgian and United States guidelines to alert readers to the important changes in recommendations for management, and the recommendations from previous guidelines that remain unchanged.
Main recommendations: Use a clinical assessment to triage patients with LBP. Further diagnostic workup is only required for the small number of patients with suspected serious pathology. For many patients with non-specific LBP, simple first line care (advice, reassurance and self-management) and a review at 1–2 weeks is all that is required. If patients need second line care, non-pharmacological treatments (eg, physical and psychological therapies) should be tried before pharmacological therapies. If pharmacological therapies are used, they should be used at the lowest effective dose and for the shortest period of time possible. Exercise and/or cognitive behavioural therapy, with multidisciplinary treatment for more complex presentations, are recommended for patients with chronic LBP. Electrotherapy, traction, orthoses, bed rest, surgery, injections and denervation procedures are not recommended for patients with non-specific LBP.
Changes in management as a result of the guidelines: The major changes include:
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Matheus Almeida is supported by a São Paulo Research Foundation grant. Chris Maher holds a fellowship funded by the National Health and Medical Research Council.
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Hypoxic blackout, also called apnoeic hypoxia or shallow water blackout,1 is a distinct and largely preventable cause of drowning.2 This fatal syndrome is often the consequence of voluntary pre-submersion hyperventilation, which downregulates CO2 brainstem chemoreceptors, with the result that consciousness may be lost (because of apnoeic hypoxia) before protective breakpoints (driven by CO2 and O2 chemoreceptors) are reached.3 Inspiration thus begins while the person is submerged and unconscious. Given the paucity of population-level analyses,4 in this study we examined hypoxic blackout-related fatal drownings in Australia to in order to inform development of prevention strategies.
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This research was supported by Royal Life Saving Society – Australia as part of its core role in promoting safety in all forms of aquatic activity. Research at Royal Life Saving Society – Australia is supported by the Australian Government.
No relevant disclosures.
Objectives: To estimate the incidence of cutaneous malignant melanoma in Victoria; to examine trends in its incidence over the past 30 years. Secondary objectives were to examine the anatomic location and thickness of invasive melanoma tumours during the same period.
Design: Population-based, descriptive analysis of Victorian Cancer Registry data.
Participants: Victorian residents diagnosed with melanoma, 1985–2015.
Main outcome measures: Age-standardised incidence of invasive melanoma; estimated annual percentage changes in incidence.
Results: In 2015, the incidence of invasive melanoma in Victoria was 52.9 cases per 100 000 men and 39.2 cases per 100 000 women. Since the mid-1990s, the incidence for men increased annually by 0.9% (95% CI, 0.3–1.5%), but for women there was no significant change (estimated annual percentage change, –0.1%; 95% CI, –0.8% to 0.5%). The incidence of invasive melanoma has been declining in age groups under 55 years of age since 1996 (overall annual change, –1.7%; 95% CI, –2.5% to –0.9%), but is still increasing in those over 55 (overall annual change, 1.6%; 95% CI, 1.0–2.2%). The most frequent site of tumours in men was the trunk (40%), on women the upper (32%) and lower limbs (31%).
Conclusions: Melanoma remains a significant health problem, warranting continued prevention efforts. Awareness of differences in presentation by men and women and in different age groups would facilitate improved screening and risk identification.
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The best approach is to take concussion seriously, treat each case carefully and be conservative with return to sport processes
The Australian Institute of Sport (AIS) and Australian Medical Association (AMA) position statement on concussion in sport and its dedicated online platform (https://www.concussioninsport.gov.au) were launched in May 2016.1 The aims were to conduct a comprehensive assessment of the evidence and present it in a format that would be accessible to all stakeholders; and to develop a set of guidelines for concussion management that would suit Australians who sustained a concussion in any sport and any level of participation. However, concussion research and guideline development progresses at a very fast pace, and it has become clear that the project needs to be regularly revised and updated as knowledge of concussion in sport continues to evolve. The gold standard for concussion in sport guidelines is the proceedings of the consensus meeting of the Concussion in Sport Group (CISG), which meets every 4 years to compile and examine the most current evidence. The most recent meeting of the CISG took place in Berlin in October 2016 and the outcomes were released as a consensus statement in April 2017,2 accompanied by a series of systematic reviews covering many aspects of concussion research and management.3-7 It was therefore necessary to update the AIS–AMA position statement to incorporate several aspects of concussion detection tools and management guidelines arising from the Berlin consensus. We also incorporated our own analysis of the evidence8 and discussed the position statement with representatives from several contact and collision sports. The main changes are summarised in Box 1. The updated version of the AIS–AMA position statement in concussion in sport was launched in November 2017 as one of the most current and informed tools currently available in Australia.
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Abstract
Objective: To determine the proportion of the national childhood asthma burden associated with exposure to dampness and gas stoves in Australian homes.
Design: Comparative risk assessment modelling study.
Setting, participants: Australian children aged 14 years or less, 2011.
Main outcome measures: The population attributable fractions (PAFs) and number of disability-adjusted life years (DALYs) for childhood asthma associated with exposure to damp housing and gas stoves.
Results: 26.1% of Australian homes have dampness problems and 38.2% have natural gas as the main energy source for cooktop stoves. The PAF for childhood asthma attributable to damp housing was 7.9% (95% CI, 3.2–12.6%), causing 1760 disability-adjusted life years (DALYs; 95% CI, 416–3104 DALYs), or 42 DALYs/100 000 children. The PAF associated with gas stoves was 12.3% (95% CI, 8.9–15.8%), corresponding to 2756 DALYs (95% CI, 1271–4242), or 67 DALYs/100 000 children. If all homes with gas stoves were fitted with high efficiency range hoods to vent gas combustion products outdoors, the PAF and burden estimates were reduced to 3.4% (95% CI, 2.2–4.6%) and 761 DALYs (95% CI, 322–1199).
Conclusions: Exposure to damp housing and gas stoves is common in Australia, and is associated with a considerable proportion of the childhood asthma burden. Strategies for reducing exposure to indoor dampness and gas combustion products should be communicated to parents of children with or at risk of asthma.