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One approach to manage people with behaviours of concern including agitated or aggressive behaviours in health care settings is through the use of fast‐acting medication, called chemical restraint. Such management often needs to be delivered in crisis situations to patients who are at risk of harm to themselves or others. This paper summarizes the available evidence on the effectiveness and safety of chemical restraint from 21 randomized controlled trials (RCTs) involving 3788 patients. The RCTs were of moderate to high quality and were conducted in pre‐hospital, hospital emergency department, or ward settings. Drugs used in chemical restraint included olanzapine, haloperidol, droperidol, risperidol, flunitrazepam, midazolam, promethazine, ziprasidone, sodium valproate, or lorazepam. There was limited comparability between studies in drug choice, combination, dose, method of administration (oral, intramuscular, or intravenous drip), or timing of repeat administrations. There were 31 outcome measures, which were inconsistently reported. They included subjective measures of behaviours, direct measures of treatment effect (time to calm; time to sleep), indirect measures of agitation (staff or patient injuries, duration of agitative or aggressive episodes, subsequent violent episodes), and adverse events. The most common were time to calm and adverse events. There was little clarity about the superiority of any chemical method of managing behaviours of concern exhibited by patients in Emergency Departments or acute mental health settings. Not only is more targeted research essential, but best practice recommendations for such situations requires integrating expert input into the current evidence base. [ABSTRACT FROM AUTHOR]

Background: Searching for topics within large biomedical databases can be challenging, especially when topics are complex, diffuse, emerging or lack definitional clarity. Experimentally derived topic search filters offer a reliable solution to effective retrieval; however, their number and range of subject foci remain unknown. Objectives: This systematic scoping review aims to identify and describe available experimentally developed topic search filters. Methods: Reports on topic search filter development (1990‐) were sought using grey literature sources and 15 databases. Reports describing the conception and prospective development of a database‐specific topic search and including an objectively measured estimate of its performance ('sensitivity') were included. Results: Fifty‐four reports met inclusion criteria. Data were extracted and thematically synthesised to describe the characteristics of 58 topic search filters. Discussion: Topic search filters are proliferating and cover a wide range of subjects. Filter reports, however, often lack clear definitions of concepts and topic scope to guide users. Without standardised terminology, filters are challenging to find. Information specialists may benefit from a centralised topic filter repository and appraisal checklists to facilitate quality assessment. Conclusion: Findings will help information specialists identify existing topic search filters and assist filter developers to build on current knowledge in the field. [ABSTRACT FROM AUTHOR]

Background: Reports from patients on seeing or hearing a dead relative or dreaming a highly significant dream at the end of life can be perplexing for health professionals who may wonder how best to respond. Aim: The aim of this study was to systematically review the literature on deathbed phenomena (DBP), and provide suggestions for a clinical response to dying patients’ recounts of these hard-to-explain phenomena. Methods: The authors searched for relevant studies which reported on DBP within a palliative care context. Eligibility criteria were established, a review process was employed and a narrative synthesis approach was used to interpret the data. Results: In total, eight papers met the inclusion criteria. Reported prevalence of DBP ranged from 24–51% with common themes described. Distinguishing between DBP and hallucinations was discussed, requiring very different clinical responses. Phenomena were timed most often in the last hours or days before death. Experiencing a DBP was, in most cases, deeply meaningful, bringing comfort, peace and reassurance. Health professionals were not surprised to hear of a DBP, but were not always well prepared to respond appropriately. Conclusions: Rather than simply dismissing DBP as medication related or the physiological effects of dying, the significance of these events and the comfort afforded by them to patients and carers should be recognised. Disclosure of DBP may enable health professionals to discuss more spiritual and existential concerns, which have the potential to offer hope, meaning and connection. We propose strategies and approaches for strengthening compassionate clinical practice in this area. [ABSTRACT FROM AUTHOR]