REVIEW article
Front. Neurol.
Sec. Neurocritical and Neurohospitalist Care
Factors influencing withdrawal of life-sustaining treatments in patients with severe acquired brain injuries: a scoping review
Alexia Abboud 1
Rose Jutras 2,3
Catherine Rollin 4,3
Loretta Norton 5,6,7
Stefanie Blain-Moraes 8,9
Catherine Duclos 10,3
1. Department of Medicine, Montreal University, Montreal, Canada
2. Department of Neurosciences, Montreal University, Montreal, Canada
3. Hopital du Sacre-Coeur de Montreal, Montreal, Canada
4. Nursing sciences Faculty, Montreal University, Montreal, Canada
5. Department of Psychology, King's University College, London, Canada
6. Western Institute for Neuroscience, Western University, London, Canada
7. Atlantic Fellows Program, Global Brain Health Institute, Dublin, Ireland
8. Research Institute of the McGill University Health Centre, Montreal, Canada
9. School of Physical and Occupational Therapy, McGill University, Montreal, Canada
10. Department of Anesthesiology and Pain Medicine / Department of Neurosciences, Montreal University, Montreal, Canada
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Abstract
ABSTRACT Background: Withdrawal of life-sustaining treatments (WLST) is a leading cause of death in patients with severe acquired brain injuries (ABI). These decisions often occur under conditions of prognostic uncertainty and time-critical therapeutic windows and may be shaped by a complex interplay of factors. Elucidating these influences is essential to ensure that WLST decisions are made in an informed, unbiased, and transparent manner, and in alignment with wishes of the patients as well as their surrogate decision makers. Objective: Conduct a scoping review of literature to identify, elaborate and analyze the various factors that influence decisions to WLST in adult patients with ABI. This review aims to provide a comprehensive understanding of current practices. Methods: This scoping review, conducted according to PRISMA-ScR guidelines, examined literature on WLST in adult ABI, in whom brain death had not been declared. The search was conducted in PubMed and Web of Science, up to August 2024. Studies were screened by title/abstract and full text, with data systematically extracted. Only original, peer-reviewed articles focusing on WLST in adult severe ABI patients were included. N = 2963 independent papers were initially found, of which N = 2881 were excluded. A final count of N = 81 independent papers were included. Results: Demographic factors (age, sex, race, socioeconomic status, etc.) (n = 50), prognosis and clinical factors (n = 59), family preferences (n = 28), physician-related factors and institutional context (n = 31), formal medical directive (n = 13), ethical/legal frameworks (n = 13), geographical differences (n = 9) and religious beliefs (n = 5) all played pivotal roles in WLST decisions. Older age consistently emerged as a determinant for WLST, as well as poor prognosis and white race. Conclusion: WLST decisions are most often made for older adults, with age consistently identified as a key predictor, independent of the clinical severity of ABI. Additional factors such as race, socioeconomic status, advance directives, and variations in healthcare provider attitudes and institutional policies further contribute to disparities in WLST practices. Understanding these intersecting influences is essential to recognizing potential biases and promoting more equitable, patient-centered end-of-life decision-making.
Summary
Keywords
anoxic brain injury, Brain Injuries, End of life care decision, Intensive Care Units, Stroke, surrogate decision maker (making), TBI - Traumatic Brain Injury, withdrawal of life sustaining therapies
Received
26 November 2025
Accepted
17 February 2026
Copyright
© 2026 Abboud, Jutras, Rollin, Norton, Blain-Moraes and Duclos. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Catherine Duclos
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