• Peter G Lawlor and Eduardo D Bruera.
• Department of Oncology, Division of Palliative Care Medicine, University of Alberta, Tertiary-level Palliative Care Unit, Grey Nuns Community Hospital, Edmonton, Alberta, Canada T6L 5X8. plawlor@sfh.ie
• Hematol. Oncol. Clin. North Am. 2002 Jun 1;16(3):701-14.

AbstractManaging delirium is of major importance in end-of-life care and frequently gives rise to controversies and to clinical and ethical dilemmas. These problems arise from a number of causes, including the sometimes-poor recognition or misdiagnosis of delirium despite its frequent occurrence. Delirium generates major symptomatic of distress for the patient, consequent stress for the patient's family, the potential to misinterpret delirium symptomatology, and behavioral management challenges for health care professionals. Paradoxically, delirium is potentially reversible in some episodes, but in many patients delirium presents a nonreversible terminal episode. Greater educational efforts are required to improve the recognition of delirium and lead to a better understanding of its impact in end-of-life care. Future research might focus on phenomenology, the development of low-burden instruments for assessment, communication strategies, and the family education regarding the manifestations of delirium. Further research is needed among patients with advanced cancer to establish a predictive model for reversibility that recognizes both baseline vulnerability factors and superimposed precipitating factors. Evidence-based guidelines should be developed to assist physicians in more appropriate use of sedation in the symptomatic management of delirium.

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