• Jake T W Williams, Florencia Moraga Masson, Forbes McGain, Rachel Stancliffe, Julia K Pilowsky, Nhi Nguyen, and BellKaty J LKJLFaculty of Medicine and Health, School of Public Health, University of Sydney, Sydney, NSW, Australia..
• Faculty of Medicine and Health, School of Public Health, University of Sydney, Sydney, NSW, Australia. jake.williams@sydney.edu.au.
• Intensive Care Med. 2024 Oct 25.

PurposeLow-value care is common in intensive care units (ICUs), unnecessarily exposing patients to risks and harms, incuring costs to the patient and healthcare system, and contributing to healthcare's carbon footprint. We aimed to identify, collate, and summarise published evidence on the impact of interventions to reduce low-value care in ICUs.MethodsWe searched MEDLINE, Embase, and Cochrane CENTRAL from inception to 22 September 2023 for evaluations of interventions aiming to reduce low-value care, supplemented by reference lists and recently published articles. We recorded impacts on the low-value target, health outcomes, resource use, cost, and the environment.ResultsFrom 1155 studies screened, 32 eligible studies were identified evaluating interventions to reduce: routine blood testing (n = 13), routine chest X-rays (n = 10), and other types (or multiple types) of low-value care (n = 9). All but 3 of the interventions found reductions in the immediate low-value care target (usually the primary outcome). Although the small sample size of most included studies, limited their ability to detect impacts on other outcomes, many interventions were also associated with improved health outcomes and financial savings. The only study that reported environmental impacts found the intervention was associated with reduced carbon dioxide equivalent (CO2-e) emissions.ConclusionsInterventions to reduce low-value care in ICUs may have important health, financial, and environmental co-benefits. Further research may inform wider scale-up and sustainability of successful strategies to decrease low-value healthcare. More empirical evidence on potential environmental benefits may inform policies to lower healthcare's carbon footprint.© 2024. The Author(s).

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