Management of delirium within intraoperative settings for older adults with hip fracture: a scoping review.

Abstract

Delirium is a common adverse event in older patients undergoing hip fracture repair surgery. The impact of hospital-acquired delirium during intraoperative phase of their treatment can have a significant impact on post-operative outcomes. While non-pharmacological, multicomponent delirium prevention interventions are considered standard practice in acute medical units, delirium management in the intraoperative setting is less clear. The aim was to identify evidence-based delirium management interventions which are, and could be, undertaken within the intraoperative setting for older patients undergoing hip fracture repair surgery. A scoping review following the principles developed by Arksey and O'Malley (2005). Seven databases including Cochrane, CINAHL, Embase, MEDLINE, PsychINFO, PubMed and SCOPUS were systematically searched. The search was limited to the last 11years (2009-2020). Research studies included both primary and secondary sources of evidence. A total of 2464 articles were initially identified. These articles were further refined using keyword searches and exclusion criteria, with a final set of 16 articles meeting the inclusion criteria. Three main themes were as follows: anaesthetic-related interventions used to prevent delirium; recognising non-modifiable and potentially modifiable risk factors; and screening and diagnosis of delirium. While there is a strong focus on anaesthetist-led interventions in the intraoperative setting, there are opportunities for more nurse-led interventions through adequate pain management and haemodynamic monitoring that require further research. Identifying the best test for screening and diagnosing delirium in the intraoperative setting requires further research.