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Chan EW, Lao KS, Lam L, Tsui SH, Lui CT, Wong CP, Graham CA, Cheng CH, Chung TS, Lam HF, Ting SM, Knott JC, Taylor DM, Kong DC, Leung LP, Wong IC. Intramuscular midazolam, olanzapine, or haloperidol for the management of acute agitation: A multi-centre, double-blind, randomised clinical trial. EClinicalMedicine 2021; 32:100751. [PMID: 33681744 PMCID: PMC7910711 DOI: 10.1016/j.eclinm.2021.100751] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The safety and effectiveness of intramuscular olanzapine or haloperidol compared to midazolam as the initial pharmacological treatment for acute agitation in emergency departments (EDs) has not been evaluated. METHODS A pragmatic, randomised, double-blind, active-controlled trial was conducted from December 2014 to September 2019, in six Hong Kong EDs. Patients (aged 18-75 years) with undifferentiated acute agitation requiring parenteral sedation were randomised to 5 mg intramuscular midazolam (n = 56), olanzapine (n = 54), or haloperidol (n = 57). Primary outcomes were time to adequate sedation and proportion of patients who achieved adequate sedation at each follow-up interval. Sedation levels were measured on a 6-level validated scale (ClinicalTrials.gov Identifier: NCT02380118). FINDINGS Of 206 patients randomised, 167 (mean age, 42 years; 98 [58·7%] male) were analysed. Median time to sedation for IM midazolam, olanzapine, and haloperidol was 8·5 (IQR 8·0), 11·5 (IQR 30·0), and 23·0 (IQR 21·0) min, respectively. At 60 min, similar proportions of patients were adequately sedated (98%, 87%, and 97%). There were statistically significant differences for time to sedation with midazolam compared to olanzapine (p = 0·03) and haloperidol (p = 0·002). Adverse event rates were similar across the three arms. Dystonia (n = 1) and cardiac arrest (n = 1) were reported in the haloperidol group. INTERPRETATION Midazolam resulted in faster sedation in patients with undifferentiated agitation in the emergency setting compared to olanzapine and haloperidol. Midazolam and olanzapine are preferred over haloperidol's slower time to sedation and potential for cardiovascular and extrapyramidal side effects. FUNDING Research Grants Council, Hong Kong.
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Affiliation(s)
- Esther W. Chan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
- Department of Pharmacy, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, China
- Corresponding author at: Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
| | - Kim S.J. Lao
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
- Global Medical Affairs, Merck Sharp & Dohme, Xuhui, Shanghai, China
| | - Lam Lam
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
| | - Sik-Hon Tsui
- Accident and Emergency Department, Queen Mary Hospital, Pok Fu Lam, Hong Kong SAR
| | - Chun-Tat Lui
- Accident and Emergency Department, Tuen Mun Hospital, Tuen Mun, Hong Kong SAR
| | - Chi-Pang Wong
- Accident and Emergency Department, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong SAR
| | - Colin A. Graham
- Accident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
- Department of Emergency Medicine, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR
| | - Chi-Hung Cheng
- Accident and Emergency Medicine Academic Unit, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
- Department of Emergency Medicine, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR
| | - Tong-Shun Chung
- Accident and Emergency Department, Ruttonjee Hospital, Wan Chai, Hong Kong SAR
| | - Hiu-Fung Lam
- Accident and Emergency Department, United Christian Hospital, Kwun Tong, Hong Kong SAR
| | - Soo-Moi Ting
- Accident and Emergency Department, United Christian Hospital, Kwun Tong, Hong Kong SAR
| | - Jonathan C. Knott
- Department of Critical Care, University of Melbourne, Parkville, Australia
| | - David M. Taylor
- Emergency Department, Austin Hospital, Heidelberg, Victoria, Australia
- Department of Medicine, University of Melbourne, Parkville, Victoria, Australia
| | - David C.M. Kong
- Pharmacy Department, Ballarat Health Services, Ballarat, Victoria, Australia
- Centre for Medicine Use and Safety, Monash University, Victoria, Australia
| | - Ling-Pong Leung
- Emergency Medicine Unit, The University of Hong Kong, Pok Fu Lam, Hong Kong SAR
| | - Ian C.K. Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
- Department of Pharmacy, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Research Department of Practice and Policy, UCL School of Pharmacy, London, United Kingdom
- Corresponding author at: Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong SAR
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Muir-Cochrane E, Oster C, Grimmer K. International research into 22 years of use of chemical restraint: An evidence overview. J Eval Clin Pract 2020; 26:927-956. [PMID: 31318109 DOI: 10.1111/jep.13232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/25/2019] [Accepted: 06/27/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chemical restraint (CR) (also known as rapid tranquilisation) is the forced (non-consenting) administration of medications to manage uncontrolled aggression, anxiety, or violence in people who are likely to cause harm to themselves or others. Our population of interest was adults with mental health disorders (with/without substance abuse). There has been a growing international movement over the past 22 years towards reducing/eliminating restrictive practices such as CR. It is appropriate to summarise the research that has been published over this time, identify trends and gaps in knowledge, and highlight areas for new research to inform practice. AIMS To undertake a comprehensive systematic search to identify, and describe, the volume and nature of primary international research into CR published since 1995. METHODS This paper reports the processes and overall findings of a systematic search for all available primary research on CR published between 1 January 1996 and 31 July 2018. It describes the current evidence base by hierarchy of evidence, country (ies) producing the research, CR definitions, study purpose, and outcome measures. RESULTS This review identified 311 relevant primary studies (21 RCTs; 46 non-controlled experimental or prospective observational studies; 77 cross-sectional studies; 69 retrospective studies; 67 opinion pieces, position or policy statements; and 31 qualitative studies). The USA, UK, and Australia contributed over half the research, whilst cross-country collaborations comprised 6% of it. The most common research settings comprised acute psychiatric wards (23.3%), general psychiatric wards (21.6%), and general hospital emergency departments (19.0%). DISCUSSION A key lesson learnt whilst compiling this database of research into CR was to ensure that all papers described non-consenting administration of medications to manage adults with uncontrolled aggression, anxiety, or violence. There were tensions in the literature between using effective CR without producing adverse events, and how to decide when CR was needed (compared with choosing non-chemical intervention for behavioural emergencies), respecting patients' dignity whilst safeguarding their safety, and preserving safe workplaces for staff, and care environments for other patients. The range of outcome measures suggests opportunities to standardise future research.
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Affiliation(s)
- Eimear Muir-Cochrane
- College of Nursing and Health Sciences, Flinders University, South Australia, Australia, 5042
| | - Candice Oster
- On-Line Education and Development, Flinders Human Behaviour and Health Research Unit (FHBHRU), College of Medicine and Public Health, Flinders University, South Australia, Australia, 5042
| | - Karen Grimmer
- College of Nursing and Health Sciences, Flinders University, South Australia, Australia, 5042.,Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Yap CYL, Hsueh YS(A, Knott JC, Taylor DM, Chan EW, Kong DCM. Economic Evaluation of Midazolam-Droperidol Combination, Versus Droperidol or Olanzapine for the Management of Acute Agitation in the Emergency Department: A Within-Trial Analysis. PHARMACOECONOMICS - OPEN 2018; 2:141-151. [PMID: 29623620 PMCID: PMC5972118 DOI: 10.1007/s41669-017-0047-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND The combination of midazolam and droperidol has proven superior to droperidol or olanzapine monotherapy in the management of acute agitation in emergency departments (EDs). OBJECTIVE This is the first economic analysis to evaluate the cost-benefit and cost effectiveness of the midazolam-droperidol combination compared with droperidol or olanzapine for the management of acute agitation in EDs. METHODS This analysis used data derived from a randomised, controlled, double-blind clinical trial conducted in two metropolitan Australian EDs between October 2014 and August 2015. The economic evaluation was from the perspective of Australian public hospital EDs. The main outcomes included agitation management time and the agitation-free time gained. Sensitivity analyses were undertaken. RESULTS The midazolam-droperidol combination was the least costly regimen (Australian dollars [AU$]46.25 per patient) compared with the droperidol and olanzapine groups (AU$92.18 and AU$110.45 per patient, respectively). The main cost driver for all groups was the cost of the labour required during the initial adequate sedation. The combination afforded an additional 10-13 min of mean agitation-free time gained, which can be translated to additional savings of AU$31.24-42.60 per patient compared with the droperidol and olanzapine groups. The benefit-cost ratio for the midazolam-droperidol combination was 12.2:1.0, or AU$122,000 in total benefit for every AU$10,000 spent on management of acute agitation. Sensitivity analyses over key variables indicated these results were robust. CONCLUSIONS The midazolam-droperidol combination may be a cost-saving and dominant cost-effective regimen for the treatment of acute agitation in EDs as it is more effective and less costly than either droperidol or olanzapine monotherapy.
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Affiliation(s)
- Celene Y. L. Yap
- Centre for Medicine Use and Safety, Monash University, 381 Royal Parade, Parkville, VIC 3052 Australia
| | - Ya-seng (Arthur) Hsueh
- Melbourne School of Population and Global Health, The University of Melbourne, 207 Bouverie Street, Carlton, VIC 3053 Australia
| | - Jonathan C. Knott
- Emergency Department, Royal Melbourne Hospital, Grattan Street, Parkville, VIC 3052 Australia
| | - David McD Taylor
- Emergency Department, Austin Health, Studley Road, Heidelberg, VIC 3084 Australia
| | - Esther W. Chan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 2/F Laboratory Block, 21 Sassoon Road, Pokfulam, Hong Kong
| | - David C. M. Kong
- Centre for Medicine Use and Safety, Monash University, 381 Royal Parade, Parkville, VIC 3052 Australia
- Pharmacy Department, Ballarat Health Services, 1 Drummond St N, Ballarat, VIC 3350 Australia
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Midazolam-Droperidol, Droperidol, or Olanzapine for Acute Agitation: A Randomized Clinical Trial. Ann Emerg Med 2017; 69:318-326.e1. [DOI: 10.1016/j.annemergmed.2016.07.033] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/25/2016] [Accepted: 07/27/2016] [Indexed: 11/18/2022]
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Chan EW, Knott JC, Taylor DM, Kong DCM. Intravenous Olanzapine for Acute Agitation in the Emergency Department. JOURNAL OF PHARMACY PRACTICE AND RESEARCH 2015. [DOI: 10.1002/j.2055-2335.2011.tb00681.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Esther W Chan
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences; Monash University, and Department of Emergency Medicine, Austin Health
| | | | | | - David CM Kong
- Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences; Monash University; Parkville Victoria
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Griffiths EV, Willis J, Spark MJ. A systematic review of psychotropic drug prescribing for prisoners. Aust N Z J Psychiatry 2012; 46:407-21. [PMID: 22535291 DOI: 10.1177/0004867411433893] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To conduct a review of the literature on prescribing psychotropic drugs for prisoners. METHODS Articles were retrieved from nine databases, reference lists, citations, governmental prison websites, and contact with authors. The articles included were written in English, focused on adults' time as prisoners, included at least one drug of interest, and discussed prescribing. Thirty-two articles met these inclusion criteria. RESULTS Five main themes were identified from the reviewed studies: polypharmacy, high-dose therapy, duration of treatment, documentation and monitoring, and issues associated with the prisoners' environment. CONCLUSIONS Consideration of these themes within the included studies identified areas for future research, particularly models of good practice, as numerous descriptions of poor practice exist. Policy-makers and prescribers should review current systems and practices, to ensure the care being offered to prisoners is optimal.
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Affiliation(s)
- Elise V Griffiths
- School of Pharmacy and Applied Science, La Trobe University, Bendigo, Australia
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Abstract
INTRODUCTION Metamfetamine is a highly addictive amfetamine analog that acts primarily as a central nervous system (CNS) stimulant. The escalating abuse of this drug in recent years has lead to an increasing burden upon health care providers. An understanding of the drug's toxic effects and their medical treatment is therefore essential for the successful management of patients suffering this form of intoxication. AIM The aim of this review is to summarize all main aspects of metamfetamine poisoning including epidemiology, mechanisms of toxicity, toxicokinetics, clinical features, diagnosis, and management. METHODS A summary of the literature on metamfetamine was compiled by systematically searching OVID MEDLINE and ISI Web of Science. Further information was obtained from book chapters, relevant news reports, and web material. Epidemiology. Following its use in the Second World War, metamfetamine gained popularity as an illicit drug in Japan and later the United States. Its manufacture and use has now spread to include East and South-East Asia, North America, Mexico, and Australasia, and its world-wide usage, when combined with amfetamine, exceeds that of all other drugs of abuse except cannabis. Mechanisms of toxicity. Metamfetamine acts principally by stimulating the enhanced release of catecholamines from sympathetic nerve terminals, particularly of dopamine in the mesolimbic, mesocortical, and nigrostriatal pathways. The consequent elevation of intra-synaptic monoamines results in an increased activation of central and peripheral α±- and β-adrenergic postsynaptic receptors. This can cause detrimental neuropsychological, cardiovascular, and other systemic effects, and, following long-term abuse, neuronal apoptosis and nerve terminal degeneration. Toxicokinetics. Metamfetamine is rapidly absorbed and well distributed throughout the body, with extensive distribution across high lipid content tissues such as the blood-brain barrier. In humans the major metabolic pathways are aromatic hydroxylation producing 4-hydroxymetamfetamine and N-demethylation to form amfetamine. Metamfetamine is excreted predominantly in the urine and to a lesser extent by sweating and fecal excretion, with reported terminal half-lives ranging from ∼5 to 30 h. Clinical features. The clinical effects of metamfetamine poisoning can vary widely, depending on dose, route, duration, and frequency of use. They are predominantly characteristic of an acute sympathomimetic toxidrome. Common features reported include tachycardia, hypertension, chest pain, various cardiac dysrhythmias, vasculitis, headache, cerebral hemorrhage, hyperthermia, tachypnea, and violent and aggressive behaviour. Management. Emergency stabilization of vital functions and supportive care is essential. Benzodiazepines alone may adequately relieve agitation, hypertension, tachycardia, psychosis, and seizure, though other specific therapies can also be required for sympathomimetic effects and their associated complications. CONCLUSION Metamfetamine may cause severe sympathomimetic effects in the intoxicated patient. However, with appropriate, symptom-directed supportive care, patients can be expected to make a full recovery.
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Affiliation(s)
- Leo J Schep
- National Poisons Centre, Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.
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Isbister GK, Calver LA, Page CB, Stokes B, Bryant JL, Downes MA. Randomized Controlled Trial of Intramuscular Droperidol Versus Midazolam for Violence and Acute Behavioral Disturbance: The DORM Study. Ann Emerg Med 2010; 56:392-401.e1. [DOI: 10.1016/j.annemergmed.2010.05.037] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Revised: 05/18/2010] [Accepted: 05/26/2010] [Indexed: 11/27/2022]
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Howes MC, van Rensburg WJ. Thiopentone sedation for sedation of acutely agitated, violent, intoxicated patients: evaluation of 2 cases. Int J Emerg Med 2009; 2:47-9. [PMID: 19390917 PMCID: PMC2672981 DOI: 10.1007/s12245-009-0085-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Accepted: 01/04/2009] [Indexed: 11/08/2022] Open
Abstract
Two cases of violent, drug-intoxicated patients who presented considerable problems in management, and were resistant to standard sedative agents, are described. Effective and safe sedation, without the need for full anaesthesia and endotracheal intubation, was achieved using titrated doses of thiopentone. The merits of selecting this agent in these circumstances are discussed.
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Affiliation(s)
- Marten C Howes
- Emergency Department, Bunbury Regional Hospital, Bunbury, Western Australia.
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