Aunty Mary sits in a community hall in Brewarrina, in far western New South Wales, and lets a small USB-sized device rest against her wrist for 30 seconds. It is, she says later, the easiest thing she has done all year. That brief recording is enough to tell a clinician whether her heart is beating in a steady rhythm or in the chaotic, quivering pattern of atrial fibrillation, the most common heart-rhythm problem in Australia and a leading cause of stroke. A single routine check like this, repeated in clinics across the country, is at the centre of a new call to lower the age at which Aboriginal and Torres Strait Islander adults are screened for the condition, from 65 to 55 [1][2].
The call comes from a systematic review with meta-analysis published in late May in the Medical Journal of Australia, led by Dr Vita Christie of the University of New South Wales with senior author Associate Professor Kylie Gwynne, who directs UNSW's Co-design Health Research and Innovation group [1][3]. The team pooled 24 Australian studies on atrial fibrillation onset, stroke incidence, treatment and outcomes in Aboriginal and Torres Strait Islander people, and the numbers are stark.
The numbers behind the recommendation
Across the studies, atrial fibrillation appeared in Indigenous Australians an average of 15.9 years earlier than in non-Indigenous Australians, with a 95% confidence interval of 11.5 to 20.4 years [1][3]. In some cohorts, almost half of atrial fibrillation cases in Indigenous people were diagnosed before the age of 55 [1][5]. The age-65 threshold that Australia has used since the 2018 Heart Foundation and Cardiac Society of Australia and New Zealand clinical guideline was set, the authors argue, for a population that simply does not match the Indigenous experience of the disease [1][6].
The stroke data reinforce the point. Aboriginal and Torres Strait Islander people are more than twice as likely to have a stroke as non-Indigenous Australians, and the gap is widest in younger adults [2][9]. Among people under 55, stroke incidence in Indigenous Australians runs at six to nine times the rate seen in non-Indigenous Australians of the same age [1][14]. Indigenous stroke patients are also 10 to 30 years younger at onset on average, and the burden of rehabilitation and long-term disability falls disproportionately on communities that already carry a heavier load of chronic disease [1][11][14]. The same MJA review found that 38% to 47% of strokes in Indigenous Australians occurred before the age of 55, compared with 10% to 15% in the non-Indigenous population [1].
The death rate tied directly to atrial fibrillation, separate from stroke, is also higher. Between 1997 and 2022, the nationally age-standardised risk ratio of death from atrial fibrillation for Indigenous versus non-Indigenous Australians was 1.8 [1].
What atrial fibrillation is, and why a 30-second test matters
Atrial fibrillation is a fault in the electrical system of the heart. The atria, the upper chambers, lose their regular rhythm and quiver instead of contracting cleanly. The condition affects more than 500,000 Australians and is responsible for roughly one in three strokes in the Indigenous population [2][6]. The danger is not the irregular beat itself, it is the clots that form when blood pools in a quivering atrium and then travel to the brain.
The hardest part is that atrial fibrillation often has no symptoms at all until a stroke occurs [2][7]. People can feel perfectly well for years while the heart is quietly out of rhythm. That is the case for a routine screen, not a wait for symptoms, to make sense.
The test itself is small and unintimidating. A clinician feels the pulse for 30 seconds, or a single-lead ECG device the size of a USB stick is held against the skin and linked to a smartphone app [2][4]. The recording is then read by the device software or by the GP. No blood, no undressing, no needles. Aunty Mary, the Brewarrina community partner quoted in The Conversation, put it plainly: she would encourage all her people to get tested, because it is just a few seconds that could save your life [2].
The treatment side of the equation
Detecting atrial fibrillation is only half the work. The other half is making sure that people who are diagnosed receive the treatment they need.
In Australia today, that is where the system is letting Indigenous patients down. The Christie review found that Indigenous Australians with atrial fibrillation are less likely to receive the anticoagulation and rhythm-management therapies recommended by the 2018 Heart Foundation and CSANZ guidelines than non-Indigenous Australians with the same diagnosis [1][6]. Lead author Dr Christie told Medical Forum that under-treatment adds to the problem of under-diagnosis [3]. Senior author Associate Professor Gwynne was blunter: systems of care do matter as much as the screening test, and screening must be accompanied by timely follow-up, culturally responsive communication and access to care aligned to clinical guidelines [3].
When atrial fibrillation is found and treated, the payoff is large. Anticoagulation, paired with appropriate blood pressure management, dietary change and physical activity, can cut the risk of an AF-related stroke by roughly 60 to 70 per cent [2][3]. The maths is therefore not subtle. Earlier detection, paired with treatment that actually reaches the patient, can prevent a large share of the strokes that Aboriginal and Torres Strait Islander families are still being asked to absorb.
Why the co-design work matters
The Christie paper is not a desk-top exercise. Its recommendations are anchored in years of co-design work with Aboriginal Community Controlled Health Organisations, the network of 148 ACCHOs operating more than 550 clinics and delivering around 3.6 million episodes of care a year to roughly 410,000 clients [8].
A pilot screening study across 16 ACCHOs ran the same kind of 30-second ECG check in real-world primary care settings. It screened 619 Aboriginal and Torres Strait Islander adults aged 45 and older, identified 29 cases of atrial fibrillation, and recorded high acceptability among both staff and patients [15]. The Brewarrina work, in a town where Aboriginal people make up more than half the population, was part of that pilot and is now part of the case for scaling the approach nationally [2].
That is the part of the story Associate Professor Gwynne keeps returning to. In her press materials, she described the change as a straightforward, low-cost and immediately actionable step to reduce preventable stroke and advance Closing the Gap [3]. Her colleague Dr Christie, who led the analysis of 24 studies, is a clinician-researcher working in Aboriginal and Torres Strait Islander health, and the MJA review carries co-author credit from Aboriginal health leaders including Katrina Ward, a descendant of the Ngiyampaa people of the Wongaibon nation, and Josephine Gwynn [1][2]. A free five-minute online training module has been developed so that primary-care clinicians can start delivering the earlier screening immediately [2].
What changes on Monday morning
For Australian adults who are not yet 65, the practical question is whether anything shifts in the clinic today. The honest answer is that the Heart Foundation and CSANZ 2018 guideline is not formally amended yet. The Christie review is a call to amend it, and the evidence base is now in the public record. International context reinforces the case: the 2024 European Society of Cardiology atrial fibrillation guideline recommends opportunistic screening from age 65 and systematic screening from age 75, a higher threshold than the 55 that the UNSW team is proposing for Indigenous Australians [12].
What is already in place is the screening tool itself, the co-design network of ACCHOs that can run it, and the training module for any GP or Aboriginal health practitioner who wants to act now. For a person who is Aboriginal or Torres Strait Islander, has additional risk factors such as hypertension, diabetes, kidney disease or a history of rheumatic heart disease, and is aged 55 or older, the conversation to have with a GP is short: ask for a 30-second pulse check or single-lead ECG at the next appointment, and ask what the follow-up pathway looks like if atrial fibrillation is detected [1][2][5].
Closing the Gap on stroke will not be solved by a single device, however small. It will be solved by an ordinary test being offered at an age that matches the population it is meant to protect, paired with treatment that is offered in a way that Aboriginal and Torres Strait Islander patients can actually take up. The Christie review is the first half of that case. The second half, the part that matters on Monday morning, is in the hands of every GP, ACCHO clinician and health service that sees an Indigenous patient over 55 this week.