Parmenter, Belinda J., Kavurma, Mary M., Richards, Toby, Arnott, Clare, Aitken, Sarah J., Wise, Steven G., Gray, Michael P., Golledge, Jonathan, Askew, Christopher D., Smith, Shreeya, Hure, Alexis, and Figtree, Gemma A. (2025) Unmet Needs and Opportunities for Australian Innovation and Clinical Research to Improve Quality of Life and Outcomes in Patients With Peripheral Artery Disease. Heart Lung and Circulation, 34 (3). pp. 225-234.

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Abstract

Peripheral arterial disease (PAD) is characterised by atherosclerotic stenosis or occlusion of arteries that leads to reduced blood flow to the limbs. PAD is associated with a very high rate of cardiovascular morbidity and mortality making the health and economic burden of PAD substantial. Despite high-quality evidence and international guidelines recommending conservative medical management of risk factors, and exercise and lifestyle interventions, surgical revascularisation (open or endovascular) remains the main treatment for PAD. Alarmingly, up to one-third of patients do not receive best medical therapy after revascularisation surgery despite evidence supporting this treatment reduces cardiovascular events. Due to the considerable health burden that PAD presents, this manuscript aims to identify gaps in care and clinical research in PAD across Australia and proposes potential collaborative solutions. In Australia, there is significant disparity in care between rural/regional and metropolitan communities. These gaps are exacerbated by inequitable access to services across Australia, particularly for First Nation Australians, culturally and linguistically diverse groups and those living in regional and remote areas. This review identifies unmet needs for patients with PAD that are multifaceted, spanning from improved understanding of disease mechanisms, diagnostic tools for risk stratification and personalised therapy, to a paucity of medical and rehabilitation therapies for symptoms or prevention of cardiovascular complications. Furthermore, there are opportunities for national and international registries to optimise clinical trial quality and outcomes. Strategies should be applied to improve implementation of optimal medical therapy in PAD which will improve quality of life, reduce health care costs, and prevent secondary complications, limb loss, and mortality across Australia's diverse population.

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