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Since its initial description by Kahlbaum (1828-1899) over a century ago, catatonia has been associated with psychiatric, neurologic, and medical disorders. Contemporary authors view catatonia as a syndrome of motor signs in association with disorders of mood, behavior, or thought. Some motor features are classic but infrequent (eg, echopraxia, waxy flexibility) while others are common in psychiatric patients (eg, agitation, withdrawal), becoming significant because of their duration and severity.

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.

Any survivor of a traumatic event is at increased risk for the development of a stress disorder. Considering the number of persons affected by events related to the global war on terrorism and several recent large-scale natural disasters, it seems inevitable that the number of persons who will experience a stress disorder will increase. It is also probable that many of these persons will at some point seek treatment in or be brought to an emergency department (ED).

Deep brain stimulation (DBS) may hold promise for patients with treatment-resistant and severe major depression and obsessive-compulsive disorder (OCD). However, it may not be the best choice for patients with Parkinson (PD) disease who display certain compulsive behaviors, reported researchers from the Cleveland Clinic and from Brown Medical School (Providence, Rhode Island) at the annual meeting of the American Academy of Neurological Surgeons, which took place April 22-27 in San Francisco.

Mentalization-based treatment (MBT) and transference-focused psychotherapy (TFP) are relatively complex and specialized treatments for the treatment of borderline personality disorder.

Dr Ronald Pies questions the statements in regards to antidepressant response time from an October 2005 article in Psychiatric Times.