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Faden J, Goldberg JF, Citrome L. Improving the pharmacotherapeutic treatment of agitation associated with bipolar disorder. Expert Opin Pharmacother 2023; 24:1811-1822. [PMID: 37581475 DOI: 10.1080/14656566.2023.2248893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
INTRODUCTION Agitation is commonly encountered in people with bipolar disorder, particularly when experiencing a manic episode. The number of approved pharmacological agents to manage acute episodes of agitation in this population is limited. AREAS COVERED A search was conducted using the US National Library of Medicine PubMed.gov resource for English-language papers of clinical trials and reviews/meta-analyses, using the text words 'bipolar disorder' AND 'agitation,' as well as any papers with both two text words in the title, without any date restrictions. EXPERT OPINION Existing pharmacologic options approved by regulatory authorities for the treatment of acute episodes of agitation associated with bipolar disorder have similar degrees of efficacy but differ in their tolerability profiles and ease of use, giving clinicians an opportunity to individualize treatment. The goal is to treat mild-moderate agitation before it evolves into severe agitation, encouraging noninvasive pharmacologic treatment options. Inhaled loxapine and sublingual dexmedetomidine are newer options with rapid onset of action and may be preferable for patients willing to cooperate with treatment.
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Affiliation(s)
- Justin Faden
- Department of Psychiatry and Behavioral Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Joseph F Goldberg
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Leslie Citrome
- Department of Psychiatry and Behavioral Sciences, New York Medical College, New York, Valhalla, USA
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Faden J, Musselman M, Citrome L. Sublingual dexmedetomidine: repurposing an anesthetic as an anti-agitation agent. Expert Rev Neurother 2023; 23:97-106. [PMID: 36707066 DOI: 10.1080/14737175.2023.2174430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Especially when acutely ill, individuals with schizophrenia and bipolar disorder can present with agitated behavior. The initial approach to agitation management are non-pharmacologic strategies such as verbal de-escalation techniques; however, pharmacologic interventions may be needed. Dexmedetomidine is a selective alpha-2 adrenergic receptor agonist, and a sublingual formulation has been approved in the US for the treatment of agitation associated with schizophrenia and bipolar disorder in adults. AREAS COVERED The authors review the published literature on sublingual dexmedetomidine using the US National Library of Medicine's PubMed.gov resource. Pharmacodynamics, pharmacokinetics, and efficacy and tolerability findings are summarized. The authors also provide a discussion to its potential place in the treatment armamentarium. EXPERT OPINION Sublingual dexmedetomidine is an effective and well-tolerated pharmacologic option for the treatment of agitation associated with schizophrenia and bipolar disorder. The sublingual method of administration allows for a rapid onset of action with treatment effects beginning as early as 20 minutes after administration. Adverse effects include somnolence, hypotension, oral paresthesia, hypoesthesia, and dry mouth. Further study will be needed to evaluate sublingual dexmedetomidine in real-world patients receiving concomitant psychotropic medications.
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Affiliation(s)
- Justin Faden
- Department of Psychiatry and Behavioral Sciences, Temple University School of Medicine, Philadelphia, PA, United States
| | - Meghan Musselman
- Department of Psychiatry and Behavioral Sciences, Temple University School of Medicine, Philadelphia, PA, United States
| | - Leslie Citrome
- Department of Psychiatry and Behavioral Sciences, New York Medical College, New York, NY, United States
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Abstract
PURPOSE OF REVIEW To provide updated guidance for the medication treatment of acute agitation in the setting of psychosis or mania on inpatient psychiatric units. RECENT FINDINGS This topic presented challenges: studies are sparse, tend to be under-powered, and are difficult to compare. Though there have been few recent studies, there have been several recent meta-analyses, Cochrane reviews, and published guidelines that sift through the primarily older evidence as well as more recent trials. The reviewers often do not agree on what seems to have the best evidence for efficacy and safety. SUMMARY We conclude that the best approach is to summarize in some detail the evidence for each possible treatment and the interpretations published recently on each of those treatments, and then present recommendations for medication management in tiered rankings, based on the authors' qualitative review of the data and opinions. For oral treatment, the first-tier options are (alphabetically) haloperidol with lorazepam, lorazepam alone, and olanzapine. The second tier includes haloperidol with promethazine, loxapine inhaler, and risperidone alone. Tier 3 includes asenapine and quetiapine. For intramuscular treatment, the first-tier includes haloperidol plus promethazine, and olanzapine alone, and the second-tier includes haloperidol with lorazepam, and lorazepam alone.
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Faden J, Citrome L. Examining the safety, efficacy, and patient acceptability of inhaled loxapine for the acute treatment of agitation associated with schizophrenia or bipolar I disorder in adults. Neuropsychiatr Dis Treat 2019; 15:2273-2283. [PMID: 31496709 PMCID: PMC6689540 DOI: 10.2147/ndt.s173567] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/24/2019] [Indexed: 12/19/2022] Open
Abstract
Agitation is a common and serious symptom of bipolar mania and schizophrenia, and can be defined as excessive motor and verbal activity. If left unrecognized and untreated, agitation can evolve into aggression, resulting in potential patient and staff injury. An ideal treatment for agitation would have a rapid onset, cause calmness without sedation, and be tolerable, efficacious, and non-coercive, while managing the underlying condition. A novel approach for the treatment of agitation is inhaled loxapine. Inhaled loxapine is rapidly absorbed into the systemic circulation through the alveoli, resulting in a near immediate onset of action. The efficacy of inhaled loxapine was established in an extensive clinical development program that included persons with schizophrenia and bipolar mania. Additionally, inhaled loxapine has comparable efficacy to intramuscular ziprasidone, olanzapine, haloperidol, aripiprazole, and lorazepam, with the added benefit of being non-painful and non-traumatizing. Inhaled loxapine carries a bolded black box warning for bronchospasm, and as a result, in the US, requires enrollment in a Risk Evaluation and Mitigation Strategy program, and is contraindicated in those with pulmonary disease. Additionally, the use of inhaled loxapine can be associated with dysgeusia and throat irritation. Inhaled loxapine requires some degree of patient cooperation, and therefore may not be appropriate for all agitated patients.
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Affiliation(s)
- Justin Faden
- Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19125, USA
| | - Leslie Citrome
- Psychiatry & Behavioral Sciences, New York Medical College, Valhalla, NY 10595, USA
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Dellazizzo L, Potvin S, Giguère CÉ, Berwald M, Dugré JR, Dumais A. The psychometric properties of the Life History of Aggression evaluated in patients from a psychiatric emergency setting. Psychiatry Res 2017; 257:485-489. [PMID: 28841510 DOI: 10.1016/j.psychres.2017.08.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 08/02/2017] [Accepted: 08/15/2017] [Indexed: 11/15/2022]
Abstract
Aggression is a major concern in psychiatric units even more so in emergency settings and is prevalent across many mental disorders. Since a prior history of aggression remains a crucial predictor of violence in hospitalized patients, appropriate tools assessing the history of violence are essential to implement management plans. The Life History of Aggression (LHA) is a widely-utilized instrument. Yet, its psychometric properties have not been thoroughly evaluated and it has neither been validated in a variety of psychiatric illnesses nor in psychiatric emergency settings. To fill this gap, the properties of a French version of the LHA administered to 1097 psychiatric patients in this setting were examined. The internal consistency, construct validity, test-retest reliability and convergent validity were analysed. Regarding the internal consistency, the Cronbach's alpha varied between 0.83 and 0.89. The confirmatory factor analysis showed that it had one underlying factor, though gender invariance was not observed. Amid 148 patients reassessed within 30 days, the test-retest reliability produced a strong correlation coefficient above 0.80. Lastly, as for convergent validity, the scale was significantly correlated with a validated drug misuse scale. Hence, the LHA retains very good psychometric properties even when evaluated in a psychiatric emergency setting, justifying its clinical pertinence.
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Affiliation(s)
- Laura Dellazizzo
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada
| | - Stéphane Potvin
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada
| | - Charles-Édouard Giguère
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada
| | - Marieke Berwald
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada
| | - Jules R Dugré
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada
| | - Alexandre Dumais
- Centre de Recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of psychiatry, Faculty of medicine, Université de Montréal, Montreal, Canada.
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Hoffman R, Hirdes J, Brown GP, Dubin JA, Barbaree H. The use of a brief mental health screener to enhance the ability of police officers to identify persons with serious mental disorders. INTERNATIONAL JOURNAL OF LAW AND PSYCHIATRY 2016; 47:28-35. [PMID: 27044526 DOI: 10.1016/j.ijlp.2016.02.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Police agencies in Canada and elsewhere have received much criticism over how they respond to persons with serious mental disorders. The adequacy of training provided to police officers on mental health issues and in particular on recognizing indicators of serious mental disorders has been a major concern. This paper describes the process that led to the development of a new brief mental health screener (interRAI Brief Mental Health Screener, BMHS) designed to assist police officers to better identify persons with serious mental disorders. The interRAI BMHS was developed in collaboration with interRAI, an international, not-for-profit consortium of researchers. The government of Ontario had previously partnered with interRAI to develop and implement the Resident Assessment Instrument for Mental Health (RAI-MH), the assessment system mandated for use on all persons admitted into inpatient psychiatric care in the province. Core items on the interRAI BMHS were obtained through analysis (N=41,019) of RAI-MH data together with input from representatives from health care, police services, and patient groups. Two police services in southwestern Ontario completed forms (N=235) on persons thought to have a mental disorder. Patient records were later accessed to determine patient disposition. The use of summary and inferential statistics revealed that the variables significantly associated with being taken to hospital by police included performing a self-injurious act in the past 30days, and others being concerned over the person's risk for self-injury. Variables significantly associated with being admitted included abnormal thought process, delusions, and hallucinations. The results of the study indicate that the 14-variable algorithm used to construct the interRAI BMHS is a good predictor of who was most likely to be taken to hospital by police officers and who was most likely to be admitted. The instrument is an effective means of capturing and standardizing police officer observations enabling them to provide more and better quality information to emergency department (ED) staff. Teaching police officers to use the form constitutes enhanced training on major indicators of serious mental disorders. Further, given that items on the interRAI BMHS are written in the language of the health system, language acts as common currency between police officers and ED staff laying the foundation for a more collaborative approach between the systems.
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Affiliation(s)
- Ron Hoffman
- Ministry of Community Safety and Correctional Services, Ontario Police College, 10716 Hacienda Road, Aylmer, Ontario N5H 2T2, Canada; Faculty of Applied and Professional Studies, School of Criminology and Criminal Justice, Nipissing University, 100 College Drive, Box 5002, North Bay, Ontario P1B 8L, Canada.
| | - John Hirdes
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Gregory P Brown
- Faculty of Applied and Professional Studies, School of Criminology and Criminal Justice, Nipissing University, 100 College Drive, Box 5002, North Bay, Ontario P1B 8L7, Canada
| | - Joel A Dubin
- Department of Statistics and Actuarial Science, School of Public Health and Health Systems, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Howard Barbaree
- Division of Forensic Psychiatry, Department of Psychiatry, University of Toronto, Toronto, Ontario M5T 1R, Canada; Waypoint Centre for Mental Health Care, 500 Church Street, Penetanguishene, Ontario L9M 1G3, Canada
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Deal N, Hong M, Matorin A, Shah AA. Stabilization and Management of the Acutely Agitated or Psychotic Patient. Emerg Med Clin North Am 2015; 33:739-52. [DOI: 10.1016/j.emc.2015.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Deitch K, Rowden A, Damiron K, Lares C, Oqroshidze N, Aguilera E. Unrecognized hypoxia and respiratory depression in emergency department patients sedated for psychomotor agitation: pilot study. West J Emerg Med 2015; 15:430-7. [PMID: 25035749 PMCID: PMC4100849 DOI: 10.5811/westjem.2014.2.19102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/22/2013] [Accepted: 02/03/2014] [Indexed: 11/11/2022] Open
Abstract
INTRODUCTION The incidence of respiratory depression in patients who are chemically sedated in the emergency department (ED) is not well understood. As the drugs used for chemical restraint are respiratory depressants, improving respiratory monitoring practice in the ED may be warranted. The objective of this study is to describe the incidence of respiratory depression in patients chemically sedated for violent behavior and psychomotor agitation in the ED. METHODS Adult patients who met eligibility criteria with psychomotor agitation and violent behavior who were chemically sedated were eligible. SpO2 and ETCO2 (end-tidal CO2) was recorded and saved every 5 seconds. Demographic data, history of drug or alcohol abuse, medical and psychiatric history, HR and BP every 5 minutes, any physician intervention for hypoxia or respiratory depression, or adverse events were also recorded. We defined respiratory depression as an ETCO2 of ≥50 mmHg, a change of 10% above or below baseline, or a loss of waveform for ≥15 seconds. Hypoxia was defined as a SpO2 of ≤93% for ≥15 seconds. RESULTS We enrolled 59 patients, and excluded 9 because of ≥35% data loss. Twenty-eight (28/50) patients developed respiratory depression at least once during their chemical restraint (56%, 95% CI 42-69%); the median number of events was 2 (range 1-6). Twenty-one (21/50) patients had at least one hypoxic event during their chemical restraint (42%, 95% CI 29-55%); the median number of events was 2 (range 1-5). Nineteen (19/21) (90%, 95% CI 71-97%) of the patients that developed hypoxia had a corresponding ETCO2 change. Fifteen (15/19) (79%, 95% CI 56-91%) patients who became hypoxic met criteria for respiratory depression before the onset of hypoxia. The sensitivity of ETCO2 to predict the onset of a hypoxic event was 90.48% (95% CI: 68-98%) and specificity 69% (95% CI: 49-84%). Five patients received respiratory interventions from the healthcare team to improve respiration [Airway repositioning: (2), Verbal stimulation: (3)]. Thirty-seven patients had a history of concurrent drug or alcohol abuse and 24 had a concurrent psychiatric history. None of these patients had a major adverse event. CONCLUSION About half of the patients in this study exhibited respiratory depression. Many of these patients went on to have a hypoxic event, and most of the incidences of hypoxia were preceded by respiratory depression. Few of these events were recognized by their treating physicians.
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Affiliation(s)
- Kenneth Deitch
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Adam Rowden
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Kathia Damiron
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Claudia Lares
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Nino Oqroshidze
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Elizabeth Aguilera
- Einstein Medical Center, Department of Emergency Medicine, Philadelphia, Pennsylvania
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Miczek KA, DeBold JF, Hwa LS, Newman EL, de Almeida RMM. Alcohol and violence: neuropeptidergic modulation of monoamine systems. Ann N Y Acad Sci 2015; 1349:96-118. [PMID: 26285061 DOI: 10.1111/nyas.12862] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Neurobiological processes underlying the epidemiologically established link between alcohol and several types of social, aggressive, and violent behavior remain poorly understood. Acute low doses of alcohol, as well as withdrawal from long-term alcohol use, may lead to escalated aggressive behavior in a subset of individuals. An urgent task will be to disentangle the host of interacting genetic and environmental risk factors in individuals who are predisposed to engage in escalated aggressive behavior. The modulation of 5-hydroxytryptamine impulse flow by gamma-aminobutyric acid (GABA) and glutamate, acting via distinct ionotropic and metabotropic receptor subtypes in the dorsal raphe nucleus during alcohol consumption, is of critical significance in the suppression and escalation of aggressive behavior. In anticipation and reaction to aggressive behavior, neuropeptides such as corticotropin-releasing factor, neuropeptide Y, opioid peptides, and vasopressin interact with monoamines, GABA, and glutamate to attenuate and amplify aggressive behavior in alcohol-consuming individuals. These neuromodulators represent novel molecular targets for intervention that await clinical validation. Intermittent episodes of brief social defeat during aggressive confrontations are sufficient to cause long-lasting neuroadaptations that can lead to the escalation of alcohol consumption.
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Affiliation(s)
- Klaus A Miczek
- Departments of Pharmacology, Psychiatry, and Neuroscience, Tufts University, Boston, Massachusetts.,Department of Psychology, Tufts University, Medford, Massachusetts
| | - Joseph F DeBold
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Lara S Hwa
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Emily L Newman
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Rosa M M de Almeida
- Department of Psychology, LPNeC, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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Hwa LS, Nathanson AJ, Shimamoto A, Tayeh JK, Wilens AR, Holly EN, Newman EL, DeBold JF, Miczek KA. Aggression and increased glutamate in the mPFC during withdrawal from intermittent alcohol in outbred mice. Psychopharmacology (Berl) 2015; 232:2889-902. [PMID: 25899790 PMCID: PMC4515187 DOI: 10.1007/s00213-015-3925-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/20/2015] [Indexed: 12/14/2022]
Abstract
RATIONALE Disrupted social behavior, including occasional aggressive outbursts, is characteristic of withdrawal from long-term alcohol (EtOH) use. Heavy EtOH use and exaggerated responses during withdrawal may be treated using glutamatergic N-methyl-D-aspartate receptor (NMDAR) antagonists. OBJECTIVES The current experiments explore aggression and medial prefrontal cortex (mPFC) glutamate as consequences of withdrawal from intermittent access to EtOH and changes in aggression and mPFC glutamate caused by NMDAR antagonists memantine and ketamine. METHODS Swiss male mice underwent withdrawal following 1-8 weeks of intermittent access to 20 % EtOH. Aggressive and nonaggressive behaviors with a conspecific were measured 6-8 h into EtOH withdrawal after memantine or ketamine (0-30 mg/kg, i.p.) administration. In separate mice, extracellular mPFC glutamate after memantine was measured during withdrawal using in vivo microdialysis. RESULTS At 6-8 h withdrawal from EtOH, mice exhibited more convulsions and aggression and decreased social contact compared to age-matched water controls. Memantine, but not ketamine, increased withdrawal aggression at the 5-mg/kg dose in mice with a history of 8 weeks of EtOH but not 1 or 4 weeks of EtOH or in water drinkers. Tonic mPFC glutamate was higher during withdrawal after 8 weeks of EtOH compared to 1 week of EtOH or 8 weeks of water. Five milligrams per kilogram of memantine increased glutamate in 8-week EtOH mice, but also in 1-week EtOH and water drinkers. CONCLUSIONS These studies reveal aggressive behavior as a novel symptom of EtOH withdrawal in outbred mice and confirm a role of NMDARs during withdrawal aggression and for disrupted social behavior.
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Affiliation(s)
- Lara S. Hwa
- Tufts University Department of Psychology, Medford, MA 02155
| | | | - Akiko Shimamoto
- Tufts University Department of Psychology, Medford, MA 02155
| | | | | | | | - Emily L. Newman
- Tufts University Department of Psychology, Medford, MA 02155
| | | | - Klaus A. Miczek
- Tufts University Department of Psychology, Medford, MA 02155
- Tufts University Department of Neuroscience, Boston, MA 02111
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Abstract
Agitation is a chief complaint that causes many children and adolescents to present to emergency medical attention. There are many reasons for acute agitation, including toxicologic, neurologic, infectious, metabolic, and functional disorders. At times it may be necessary to pharmacologically treat the agitation to prevent harm to the patient, caregivers, or hospital staff. However, one should always be mindful that the differential diagnosis is broad, and a complete although timely assessment with targeted testing must be done before concluding that the agitation is rooted solely in nonorganic causes. There are various pharmacologic choices for the treatment of agitation, and they will be reviewed here. While treatment of agitation may be necessary to keep the patient as well as staff safe, as well as to facilitate medical evaluation in some cases, care must be taken to treat the patient with compassion, never using pharmacologic treatment for reasons of punishment or staff convenience. The focus is on the pharmacologic management of acute agitation of patients in the pediatric age group, in the context of a full evaluation for possible nonfunctional causes of agitation. Goals, risks, and benefits of medication use will be reviewed.
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Maharaj R, O'Brien L, Gillies D, Andrew S. Police referrals to a psychiatric hospital: experiences of nurses caring for police-referred admissions. Int J Ment Health Nurs 2013; 22:313-21. [PMID: 23009594 DOI: 10.1111/j.1447-0349.2012.00881.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Police are a major source of referral to psychiatric hospitals in industrialized countries with mental health legislation. However, little attention has been paid to nurses' experience of caring for police-referred patients to psychiatric hospitals. This study utilized a Heideggerian phenomenological framework to explore the experiences of nine nurses caring for patients referred by the police, through semistructured interviews. Two major themes emerged from the hermeneutic analyses of interviews conducted with nurse participants: (i) 'expecting "the worst" '; and (ii) 'balancing therapeutic care and forced treatment'. Expecting 'the worst' related to the perceptions nurse participants had about patients referred by the police. This included two sub-themes: (i) 'we are here to care for whoever they bring in'; and (ii) 'but who deserves care?' The second theme balancing therapeutic care and forced treatment included the sub-themes: (i) 'taking control, taking care'; and (ii) 'managing power'. The study raises ethical and skill challenges for nursing including struggling with the notion of who deserves care, and balancing the imperatives of legislation with the need to work within a therapeutic framework.
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Affiliation(s)
- Reshin Maharaj
- Western Sydney Local Health District, Sydney, Australia.
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Citrome L. Addressing the need for rapid treatment of agitation in schizophrenia and bipolar disorder: focus on inhaled loxapine as an alternative to injectable agents. Ther Clin Risk Manag 2013; 9:235-45. [PMID: 23723707 PMCID: PMC3665578 DOI: 10.2147/tcrm.s31484] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Agitation (excessive motor or verbal activity) can be associated with schizophrenia or bipolar mania, and can further escalate into aggressive behavior and potentially lead to injuries in patients and staff. Medications used to treat agitation include antipsychotics and benzodiazepines, usually administered intramuscularly when rapid action is desired. Loxapine, a first-generation antipsychotic, has recently been reformulated into an inhaled powder that allows for direct administration to the lungs, resulting in rapid absorption into the systemic circulation. Administered via a single-use device, inhaled loxapine was tested in randomized controlled trials in agitation associated with schizophrenia or bipolar mania; doses of 5 mg and 10 mg were found to be efficacious, with an apparent dose response. In the Phase III studies, number needed to treat versus placebo for a ≥40% reduction from baseline on the Positive and Negative Syndrome Scale – Excited Component (PANSS-EC) at 2 hours was three for patients with bipolar disorder, and five for 5 mg and four for 10 mg for patients with schizophrenia, with effect sizes comparable to what has been observed in analogous studies of intramuscular injection of antipsychotics or lorazepam. Separation from placebo on the PANSS-EC was as early as 10 minutes postinhalation, the first time point where this was measured. Dysgeusia was the most commonly encountered spontaneously reported adverse event. Adverse events related to extrapyramidal symptoms and akathisia were relatively rare. Spirometry studies identified the potential for bronchospasm particularly in persons with asthma. Because of concerns over pulmonary safety, inhaled loxapine is restricted to use in hospitals and patients need to be prescreened for the presence of pulmonary disease, as well as monitored for signs and symptoms of bronchospasm for 1 hour postdose administration, as per a Food and Drug Administration-mandated Risk Evaluation and Mitigation Strategy.
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Affiliation(s)
- Leslie Citrome
- Department of Psychiatry and Behavioral Sciences, New York Medical College, Valhalla, NY, USA
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Wilson MP, Pepper D, Currier GW, Holloman GH, Feifel D. The psychopharmacology of agitation: consensus statement of the american association for emergency psychiatry project Beta psychopharmacology workgroup. West J Emerg Med 2012; 13:26-34. [PMID: 22461918 PMCID: PMC3298219 DOI: 10.5811/westjem.2011.9.6866] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 09/07/2011] [Accepted: 09/21/2011] [Indexed: 11/11/2022] Open
Abstract
Agitation is common in the medical and psychiatric emergency department, and appropriate management of agitation is a core competency for emergency clinicians. In this article, the authors review the use of a variety of first-generation antipsychotic drugs, second-generation antipsychotic drugs, and benzodiazepines for treatment of acute agitation, and propose specific guidelines for treatment of agitation associated with a variety of conditions, including acute intoxication, psychiatric illness, delirium, and multiple or idiopathic causes. Pharmacologic treatment of agitation should be based on an assessment of the most likely cause of the agitation. If agitation results from a delirium or other medical condition, clinicians should first attempt to treat the underlying cause instead of simply medicating with antipsychotics or benzodiazepines.
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Affiliation(s)
- Michael P Wilson
- UC San Diego Health System, Department of Emergency Medicine, San Diego, California
| | - David Pepper
- Hartford Hospital/Institute of Living, Department of Psychiatry, Hartford, Connecticut
| | - Glenn W Currier
- University of Rochester Medical Center, Departments of Psychiatry and Emergency Medicine, Rochester, New York
| | - Garland H Holloman
- University of Mississippi Medical Center, Department of Psychiatry, Jackson, Mississippi
| | - David Feifel
- UC San Diego Health System, Department of Psychiatry, San Diego, California
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Lee S, Brunero S, Fairbrother G, Cowan D. Profiling police presentations of mental health consumers to an emergency department. Int J Ment Health Nurs 2008; 17:311-6. [PMID: 18789040 DOI: 10.1111/j.1447-0349.2008.00553.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Public mental health systems have been called on to better meet the needs of consumers presenting to health services with the police, yet few studies have examined police presentations among mental health consumers in large public mental health systems. This study was designed to determine the frequency profile and characteristics of consumers of mental health services brought in by police to an emergency department (ED) in Sydney, Australia. Using data from the emergency department information system and obtaining the psychiatric assessment from the medical record, we have examined trends and characteristics in mental health presentations brought in by the police to a general ED between 2003 and 2005. The sample consisted of 542 consumers with a mental health problem brought in by the police to the ED of a 350-bed community hospital. The characteristics of this group were compared with those of all mental health related ED presentations for the same period using logistic regression. Results indicated that police presentations are likely to be young males who are unemployed, have past and present alcohol and other drugs use, present after hours, and are admitted to hospital as a result of their presentation. These consumers are likely to have a presenting problem of a psychotic disorder, less likely to have a presenting problem of depression and/or anxiety, and given a triage code of three or higher. The study results highlight the importance of the availability of 24-hour access to mental health care to ensure a quick care delivery response. Police presentations to EDs with mental health issues are an indicator of significant impact on health services, especially with the current overcrowding of EDs and the associated long waiting times. Systems need to be developed that facilitate collaboration between EDs, hospital security, police services, mental health, and ambulance services.
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Affiliation(s)
- Soung Lee
- Enhanced Hospital Drug Health Consultation Liaison Services, Liverpool Hospital, Sydney, New South Wales, Australia.
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18
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Abstract
Aggressive violence has been described as the greatest problem and the most frequent reason for referrals in child and adolescent psychiatry. In this country we have only partially emerged from an epidemic of violence that was really an epidemic of youth violence. Thus it is hardly surprising that psychiatrists are being asked more and more frequently whether psychiatric medications might help to diminish the toll from this behavioral plague. Medications are useful and appropriate for only a small minority of the people who commit serious violence. Even when they are indicated, they can never be the sole treatment modality, but should be supplemented by psychological and social therapies. When the violence is a byproduct or symptom of an underlying mental illness, treating that illness is generally the most effective method of preventing future violence on a long-term basis. However, most violence is not committed by those who are mentally ill, and most of the mentally ill never commit a serious act of violence. That is why many attempts have been made to discover whether there are drugs that diminish the symptom, violence, even when there is no underlying mental illness for which drugs would normally be prescribed. In fact there are several, and their indications and use are reviewed here. Different principles govern the acute short-term emergency treatment of a violent crisis and the long-term treatment of those who are chronically and repetitively violent, and these differences are also summarized here.
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Affiliation(s)
- James Gilligan
- Department of Psychiatry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
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19
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Kelly DL, Conley RR, Carpenter WT. First-episode schizophrenia: a focus on pharmacological treatment and safety considerations. Drugs 2005; 65:1113-38. [PMID: 15907146 DOI: 10.2165/00003495-200565080-00006] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Schizophrenia is a debilitating disorder, which is usually chronic, and is one of the most devastating medical illnesses. Early and appropriate treatment with antipsychotics is an important strategy for patients with first-episode schizophrenia. However, there are many possible safety issues for patients with schizophrenia that should be considered and properly addressed. Depressive symptoms and suicidal behaviour commonly occur in first-episode schizophrenic patients, and every effort should be made to treat and minimise these symptoms. There are also important issues and considerations in young and first-episode patients that should also be considered in the emergency treatment setting and for minimising medication nonadherence in this population. Most importantly, adverse effects should be considered, minimised and addressed. While first- and second-generation antipsychotics (SGAs) both appear to offer similar efficacy for amelioration of positive symptoms in first-episode patients, SGAs may offer better tolerability, specifically regarding extrapyramidal symptoms (EPS) and tardive dyskinesia risk, and some prolactin-sparing benefits. However, these medications do cause a host of adverse effects, including weight gain, metabolic disturbances, corrected QT interval prolongation and prolactin-related adverse effects, which are important considerations relating to both the short- and long-term safety of patients with schizophrenia being treated with SGAs. Clozapine and olanzapine are most likely to cause weight gain and metabolic effects, while risperidone is more likely to cause EPS and prolactin elevations. Most antipsychotics should be used in low doses to minimise adverse effects and each medication should be optimised in a highly individualised way to maximise adherence and treatment outcomes and minimise tolerability and safety concerns. At some point in their lives, these patients will most probably experience periods of depression, suicidal behaviours, adverse effects and nonadherence, and every effort should be made to minimise or prevent these from occurring. Thus, safety concerns in this group of young patients, in the beginning of their first psychotic episode, are a major issue as they are starting a journey of antipsychotic treatment that is likely to last for the remainder of their lives.
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Affiliation(s)
- Deanna L Kelly
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland 21228, USA.
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20
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Abstract
Acute agitation occurs in a variety of medical and psychiatric conditions, and when severe can result in behavioural dyscontrol. Rapid tranquillisation is the assertive use of medication to calm severely agitated patients quickly, decrease dangerous behaviour and allow treatment of the underlying condition. Intramuscular injections of typical antipsychotics and benzodiazepines, given alone or in combination, have been the treatment of choice over the past few decades. Haloperidol and lorazepam are the most widely used agents for acute agitation, are effective in a wide diagnostic arena and can be used in medically compromised patients. Haloperidol can cause significant extrapyramidal symptoms, and has rarely been associated with cardiac arrhythmia and sudden death. Lorazepam can cause ataxia, sedation and has additive effects with other CNS depressant drugs.Recently, two fast-acting preparations of atypical antipsychotics, intramuscular ziprasidone and intramuscular olanzapine, have been developed for treatment of acute agitation. Intramuscular ziprasidone has shown significant calming effects emerging 30 minutes after administration for acutely agitated patients with schizophrenia and other nonspecific psychotic conditions. Intramuscular ziprasidone is well tolerated and has gained widespread use in psychiatric emergency services since its introduction in 2002. In comparison with other atypical antipsychotics, ziprasidone has a relatively greater propensity to increase the corrected QT (QTc) interval and, therefore, should not be used in patients with known QTc interval-associated conditions. Intramuscular olanzapine has shown faster onset of action, greater efficacy and fewer adverse effects than haloperidol or lorazepam in the treatment of acute agitation associated with schizophrenia, schizoaffective disorder, bipolar mania and dementia. Intramuscular olanzapine has been shown to have distinct calming versus nonspecific sedative effects. The recent reports of adverse events (including eight fatalities) associated with intramuscular olanzapine underscores the need to follow strict prescribing guidelines and avoid simultaneous use with other CNS depressants. Both intramuscular ziprasidone and intramuscular olanzapine have shown ease of transition to same-agent oral therapy once the episode of acute agitation has diminished. No randomised, controlled studies have examined either agent in patients with severe agitation, drug-induced states or significant medical comorbidity. Current clinical experience and one naturalistic study with intramuscular ziprasidone suggest that it is efficacious and can be safely used in such populations. These intramuscular atypical antipsychotics may represent a historical advance in the treatment of acute agitation.
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Affiliation(s)
- John Battaglia
- Department of Psychiatry and Behavioural Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.
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21
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Marco CA, Vaughan J. Emergency management of agitation in schizophrenia. Am J Emerg Med 2005; 23:767-76. [PMID: 16182986 DOI: 10.1016/j.ajem.2005.02.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2005] [Revised: 02/20/2005] [Accepted: 02/25/2005] [Indexed: 10/25/2022] Open
Abstract
Schizophrenia is a common psychiatric condition, affecting approximately 1% of the population. Acute emergent presentations often include hallucinations, delusions, thought, and speech disorders. Agitation is common among emergency patients with schizophrenia. Decisional capacity should be assessed in all patients. Reversible causes of agitation should be ruled out, including infection, metabolic disorders, endocrine disorders, trauma, pain, noncompliance, toxicological disorders, and structural brain abnormalities. Agitation may be managed acutely using a combination of pharmacological agents and nonpharmacological interventions. Effective pharmacological agents include several classes of antipsychotic agents and benzodiazepines. Potential life-threatening complications of pharmacological therapy should be anticipated, which may include neuroleptic malignant syndrome (NMS), prolonged QT syndrome, and respiratory depression. Nonpharmacological interventions may include a quiet environment, physical restraints, and behavioral interventions. Disposition decisions should be made based on the etiology of agitation, effective management, decisional capacity, and presence of suicidal or homicidal intentions. Many patients who have required nonpharmacological or pharmacological management of agitation require inpatient psychiatric treatment, either voluntarily or involuntarily. Psychiatric consultation should be sought for patients with schizophrenia and uncertain disposition determinations, or those requiring other complex management decisions.
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Affiliation(s)
- Catherine A Marco
- Department of Emergency Medicine, St Vincent Mercy Medical Center, Toledo, OH 43608-2691, USA.
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22
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Abstract
Violence in the work place is a new but growing problem for our profession. It is likely that at some point a psychiatrist will be confronted with a potentially violent patient or need to assess a violent patient. Understanding predictors and associated factors in violence as well as having a clear and well-defined strategy in approaching and dealing with the violent patient, thus, are crucial. Ensuring patient, staff, and personal safety is the most important aspect in the management of a violent patient. All of the staff must be familiar with management strategies and clear guidelines that are implemented and followed when confronted with a violent patient. The more structured the approach to the violent patient, the less likely a bad outcome will occur. Manipulating one's work environment to maximize safety and understanding how to de-escalate potentially mounting violence are two steps in the approach to the violent patient. Restraint, seclusion, and psychopharmacologic interventions also are important and often are necessary components to the management of the violent patient.
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Affiliation(s)
- Jorge R Petit
- Bureau of Program Services, The New York City Department of Health and Mental Hygiene, New York, NY 10013, USA.
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23
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Gibb SJ, Beautrais AL, Fergusson DM. Mortality and further suicidal behaviour after an index suicide attempt: a 10-year study. Aust N Z J Psychiatry 2005; 39:95-100. [PMID: 15660711 DOI: 10.1080/j.1440-1614.2005.01514.x] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To examine further suicide attempts and mortality in the 10 years after a suicide attempt requiring hospital admission. METHOD Participants were a consecutive series of 3690 individuals admitted to Christchurch Hospital for attempted suicide during the 10-year period 1993-2002. Data were obtained on admissions to Christchurch Hospital for attempted suicide during the study period. Mortality subsequent to the index suicide attempt was established from the National Mortality Database. The influence of age, gender and method of index suicide attempt on mortality and further suicide attempts requiring hospitalization were examined. RESULTS Within 10 years, 28.1% of those who had been admitted for an index suicide attempt were readmitted for a further non-fatal suicide attempt, and 4.6% died by suicide. Risks and rates of readmission were higher in: females; those under 55; and those whose index attempt involved a method of low lethality. Risks and rates of suicide were higher in: males; those aged 25 and over; and those using an index suicide attempt method of high lethality. Risks and rates of readmission and mortality from suicide were highest in the first 2 years after the index attempt, although deaths and readmissions occurred throughout the 10 years study period. CONCLUSIONS Those making suicide attempts requiring hospital admission are at high risk of further hospitalization for suicide attempt and of death from suicide. These findings suggest a need for ongoing support and monitoring, and for enhanced treatment and management of all those making suicide attempts which require hospital admission in an effort to reduce risks of further suicidal behaviour.
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Affiliation(s)
- Sheree J Gibb
- Canterbury Suicide Project, Christchurch School of Medicine and Health Sciences, New Zealand
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24
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Chengappa KNR. Dosage and administration issues of antipsychotic agents (and adjunctive medicines) in the acute stabilization of psychoses. CNS Spectr 2004; 9:6-10. [PMID: 15361806 DOI: 10.1017/s109285290000434x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
There are several options and approaches available to practicing psychiatrists for the pharmacologic management of acute psychotic episodes that present in emergency room settings. This article focuses on the first hours and days of such episodes, the goals of treatment, and comparison of the "old favorites," such as combination haloperidol and lorazepam (in liquid, tablet or injectable formulations), with the newer second-generation antipsychotic agents, such as olanzapine, ziprasidone, risperidone, quetiapine, or aripiprazole, which are available in different formulations. The speed of titration to an effective target dose for these newer agents are addressed as well.
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Affiliation(s)
- K N Roy Chengappa
- Department of Psychiatry, University of Pittsburgh School of Medicine, Western Psychiatric Institute and Clinic, Pittsburgh, PA 15213-2593, USA.
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25
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Lambert T, Kelly DL, Alcock S, Conley RR. Psychotropic prescribing for acute inpatient admissions in patients with severe psychosis. J Clin Psychopharmacol 2004; 24:91-3. [PMID: 14709954 DOI: 10.1097/01.jcp.0000106224.36344.11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Abstract
Acute assessment and management of the aggressive or violent child or adolescent are a challenge for clinicians. Early recognition of signs of impending violence and a clear understanding of the progression of violent behavior are essential to ensure safety of patients and staff. The management of violent and aggressive patients using behavioral interventions tailored to the stage of violence or aggression is critical to reducing the likelihood that the child or adolescent will attack staff or injure self or others. The indications and risks of chemical and physical restraints and hospital standards and guidelines that govern the use of behavioral and experience regarding the prevalence, presentation, and differential diagnosis of psychotic disorders in juveniles. The clinician must rapidly disentangle which elements of the clinical presentation indicate true psychotic thought processes versus elements that represent misunderstood developmentally appropriate phenomena, symptoms of nonpsychotic illnesses, or harbingers of an underlying primary medical illness. A thorough assessment is required before appropriate treatment can begin.
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Affiliation(s)
- Ellen K Heyneman
- Department of Psychiatry and Pediatrics, University of California-San Diego, La Jolla, CA, USA.
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27
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Portuguese S, Zalsman G. Psychopharmacology of violent behavior in adolescents. Int J Adolesc Med Health 2003; 15:191-200. [PMID: 12964441 DOI: 10.1515/ijamh.2003.15.3.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this review is to discuss the biological basis for the pharmacotherapy of violence in adolescents. The current and updated views on the etiology, biochemistry and neuroanatomy of violence in youth are presented. Concepts in the treatment and the pharmacological agents that are used both in short and long term are discussed and we conclude with some of recent findings in the exciting field of genetics of violence. The review emphasizes that treatment should always combine a socio-psycho-biological and multi-disciplinary approach, because any single treatment for violence cannot stands on its own.
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Affiliation(s)
- Shirley Portuguese
- Adolescent Inpatient Unit, Geha Mental Health Center, Petach Tikva, Israel
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28
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Citrome L. Atypical antipsychotics for acute agitation. New intramuscular options offer advantages. Postgrad Med 2002; 112:85-8, 94-6. [PMID: 12510449 DOI: 10.3810/pgm.2002.12.1369] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Violent or threatening behavior is a common reason for a visit to the emergency department. Patients with aggressive behavior must first be assessed for the possibility of comorbid medical conditions, which can complicate management. The introduction of intramuscular preparations of atypical antipsychotics provides new treatment options for acute agitation. These agents appear to be fast-acting and well tolerated and do not induce the akathisia of the older neuroleptic agents. Short-term sedation with lorazepam remains a safe and effective choice for managing acute agitation, in particular when withdrawal from alcohol may be a precipitating factor. However, lorazepam does not address the psychotic symptoms that may be at the core of much of this behavior. The intramuscular preparations of the atypical antipsychotics will probably supplant the intramuscular formulations of the older neuroleptics, much in the same way that the oral forms of these agents have become the agents of choice in treating psychosis. In addition, development of depot preparations of atypical antipsychotics is progressing rapidly. These products may further revolutionize the emergency and postemergency care of psychotic patients.
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Affiliation(s)
- Leslie Citrome
- Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Rd, Orangeburg, NY 10962, USA.
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30
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Abstract
Violence is the second leading cause of death in the workplace. Most acts of violence in the healthcare setting go unreported. Critical care and emergency department nurses must be prepared to deal with these tragedies. This article presents vital information on how to recognize and prevent violence in the critical care and emergency departments.
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Affiliation(s)
- Beth R Keely
- Undergraduate Nursing Program, California State University, Long Beach 90840, USA.
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31
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Abstract
A clinical attitude to the interview of violent patients is outlined, which enables maximum safety for the clinician and usefulness of the interview findings. This approach emphasizes careful monitoring of subjective states in the patient and clinician. The author suggests an emphasis on clinical knowledge of the DSM-IV and psychodynamic diagnoses of potentially violent psychiatric patients; self-awareness of transference and countertransference; and self-care including attention to personal physical and emotional needs, de-escalation, and self-defense skills. Finally, there is need for a safe therapeutic context within which to work.
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Affiliation(s)
- S W Twemlow
- The Austen Riggs Center, 25 Main Street, Stockbridge, MA 01262-0962, USA.
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32
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Roberts JR, Geeting GK. Intramuscular ketamine for the rapid tranquilization of the uncontrollable, violent, and dangerous adult patient. THE JOURNAL OF TRAUMA 2001; 51:1008-10. [PMID: 11706355 DOI: 10.1097/00005373-200111000-00031] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- J R Roberts
- Department of Emergency Medicine, Mercy Health Systems and the Medical College of Pennsylvania/Hahnemann University, Philadelphia, Pennsylvania 19143, USA.
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