Emergency Psychiatry

Almost 3 years after the FDA warned of increased mortality in elderly patients who received atypical antipsychotics off-label for neuropsychiatric syndromes of dementia, no medication has been approved as safe and effective for this increasingly challenging problem. Recent publications, however, including a white paper from the American College of Neuropsychopharmacology (ACNP), indicate that clinical investigators are wrestling with the dilemma and considering potential alternatives to antipsychotics.

I was very pleased to read Robert Langs' letter ("Violence Against Mental Health Professionals," Psychiatric Times, July 2007), in the wake of Dr Fenton's death.

Part 1 of this article, discussed a general approach to treating psychiatric emergencies in patients with bipolar and related disorders, as well as the assessment and management of agitation and impulsive aggression. Part 2 focuses on psychosis, suicidality, and specific treatments relevant to patients in emergency settings who are agitated or have bipolar disorder.

Psychiatric emergencies usually involve some combination of agitation, aggression, impulsivity, psychosis, and risk of destructive behavior, including suicide and homicide. The psychiatrist must ensure the safety of the patient and others while identi- fying and treating immediate medical and psychiatric problems and developing and initiating a strategy for continuing the management of less immediate problems. In the diagnosis of acute behavioral disturbances, it is necessary to determine the role of the patient's primary psychiatric illnesses and any complications or treatments of those primary psychiatric illnesses, as well as the role of other medical or toxic disturbances that may be interacting with the patient's psychiatric illnesses or treatments.

Psychiatrists who work in inpatient units are faced with daily decisions about predicting which patients will be violent, both in the hospital and after discharge. These decisions are often made using unstructured clinical judgment based on the clinician's experience and knowledge of the literature. How long such judgment stays the standard of care remains to be seen, because psychiatric researchers have produced a number of assessment and management tools to improve the accuracy and use of violence risk assessment. This article briefly outlines 3 tools: the Brøset Violence Checklist (BVC), the Classification of Violence Risk (COVR), and the Historical Clinical Risk-20 (HCR-20).

In the article by Drs Kunen and Mandry, "Should Emergency Medicine Physicians Screen for Psychiatric Disorders?" (Psychiatric Times, October 2006), no mention was made of formally assessing a patient's mental status to diagnose delirium.

In The Perfect Storm, Sebastian Junger describes the desperate plight of sailors and fisherman who, in the fall of 1991, were caught out in the Atlantic Ocean as 2 powerful storms converged into 1.1 Like those mariners, emergency department (ED) clinicians find themselves at the confluence of 2 powerful trends in modern society.

The following cases highlight some of the challenges clinicians face when treating patients in whom malingerling is suspected. One key aspect of these evaluations is not overlooking signs or symptoms that point to serious illness.

The role of every emergency clinician is to determine whether the patient has a condition that threatens life or limb. Determining this in patients who malinger can be quite a challenge, because the malingering patient presents with false or exaggerated symptoms for secondary gain.

Delirium is a disorder that lies at the interface of psychiatry and medicine. It is an acute organic syndrome caused by an underlying medical condition and is defined clinically by disturbances in cognitive function, attention, and level of consciousness.1 Delirium is considered a syndrome because of the constellation of signs and symptoms associated with the disorder, coupled with a wide variety of potential etiologies.

The following case histories illustrate some of the clinical aspects of delirium that were described in the preceding article. Each case is followed by a discussion of the diagnosis, identification of the etiology, and subsequent treatment of an episode of delirium.

Once his colleagues began to recover from the shock, the death of Dr Wayne S. Fenton triggered a discussion in the professional and lay press about the risks of violence to mental health professionals posed by mentally ill patients. Fenton was found unconscious and bleeding in his office in Bethesda, Md, on Sunday, September 3, 2006. He had been beaten severely around the head and died at the scene.

Psychotic symptoms--delusions, hallucinations, paranoia, thought disorder--are mostly attributed now to aberrations in brain structure and function.

The setting of a fast-paced emergency department (ED) or psychiatric emergency service makes it especially difficult to sensitively elicit and address an individual patient's needs and concerns. When considering the myriad differences in culture that come into play between a patient and a psychiatrist or other mental health care clinician, optimal diagnosis and treatment can be even more challenging, as the cases described here illustrate. The important influence of culture cannot be stressed enough. Taking the time to understand "where the patient is coming from" can prevent an already stressful, highly emotionally charged situation from becoming even more convoluted.

If done properly, the assessment of alcohol and substance use disorders in the emergency department (ED) or psychiatric emergency service can be the first step toward recovery.

Emergency department (ED) visits have increased from 89 million in 1992 to more than 110 million in 2002, while the number of EDs decreased by about 15% during the same period. One suspected consequence of ED overcrowding is an increased tendency to disregard a psychiatric problem, especially if it is not the chief complaint.

Research conducted over the past 30 years leads to the conclusion that televised violence does influence viewers' attitudes, values and behavior.

While dementia is marked by such cognitive deficits as disorientation, memory loss and changes in intellectual functioning, these are not the symptoms that cause the most distress to caregivers.

The incidence of child and adolescent psychiatric emergencies has increased over the past 20 years. This rise in emergency department (ED) mental health visits coincides with an overall increase in ED use from 89.8 million visits in 1992 to 107.5 million visits in 2001. Psychiatric presentations by children and adolescents (often in the absence of medical complaints) account for up to of the total visits to an ED in a given year and, in some reports, such presentations account for as many as 16% of ED visits.

The following 3 cases illustrate the diagnostic challenges related to differentiating brain injury and posttraumatic stress disorder (PTSD) in patients presenting to the emergency department (ED) in the acute period following a traumatic injury. Such patients pose a dilemma for ED clinicians because of the interplay between head injury and PTSD in the clinical presentation of cognitive impairments in the aftermath of trauma.

The presentation of patients to the emergency department following trauma is often complicated by the behavioral reaction to the accident that brought them there. In some cases, the mental reaction to psychological trauma is the primary presenting phenomenon. ED physicians and staff often use medication to treat the acute effects of psychological trauma. However, there is little empiric evidence to support this practice.

In many situations, patients--even those who are acutely mentally ill--and physicians agree on a treatment regimen. In some cases, however, patients may disagree with the treatment after the fact or refuse treatment altogether. Although the physician's primary concerns are patient care and safety, the legalities of medicine are ever present and must be kept in mind. The following cases illustrate some of the medicolegal challenges that may arise in the emergency care setting.

The concept of Primum non nocere ("First, do no harm") is a cornerstone of medical education. This Latin phrase reminds physicians that medical treatments can potentially have both good and bad effects. Sometimes, the ultimate net benefit of an intervention is clear to both the physician and the patient, and treatment proceeds unimpeded by doubt. When the net benefit of a treatment is less certain, in most branches of medicine patient choice and self-determination play a major role in determining which "gray zone" treatments are appropriate. For the most part, this is also true in psychiatry.

The perinatal period is a high-risk time for some women to experience a new onset or exacerbation of a mood disorder that may require emergency psychiatric care.

Medical school graduation usually involves the Hippocratic Oath, in which physicians vow not to intentionally harm their patients. Keeping patients safe is another basic principle of patient care. Physicians are charged with ensuring that their patients are in a safe environment and minimizing risks to their patients by carefully selecting treatment options. In emergency psychiatric settings, patient safety is critical, especially when the patient is a danger to himself or herself or to others.