News

Recurrent stroke is an important health concern not only from a patient perspective but also from clinical and public health standpoints. Many studies have shown that the risk of a second cerebral infarction is greatest immediately following the primary event. Consequently, clinical management of stroke survivors is focused on preventive therapy to minimize risk.

Corticospinal tract (CST) integrity may predict the potential for clinical improvement in chronic stroke patients, according to a recent study. Winston Byblow, MSc, PhD, associate professor and director of the Movement Neuroscience Laboratory in the Department of Sport & Exercise Science at the University of Auckland, Australia, and colleagues used transcranial magnetic stimulation (TMS) and MRI to determine factors that predict functional improvement in a patient's upper limbs.1 In patients with motor-evoked responses (MEPs) to TMS, researchers found that meaningful gains were still possible 3 years after stroke, although the capacity for improvement declined with time. The researchers also created an algorithm to predict functional potential for upper limb recovery in this patient population.

Hyperglycemia is a risk factor for stroke and augurs a poor outcome in the aftermath of stroke; however, treating patients with post-stroke hyperglycemia (PSH) with infusions of glucose, potassium, and insulin (GKI) to achieve euglycemia does not provide a survival benefit.

aytime sleepiness is common in patients with parkinsonism but has little to do with the amount of sleep these patients get and everything to do with dopaminergic dysfunction, according to David B. Rye, MD, PhD, associate professor of neurology at Emory University in Atlanta. "The idea is that if I sleep a lot, I shouldn't be so sleepy the next day, and if I sleep little, I should be very sleepy. This is doesn't hold true for patients with Parkinson disease [PD]. The loss of dopamine disrupts that banking system, or the sleep-wake homeostat," he said during a presentation at the 9th annual meeting of the American Society for Experimental Therapeutics, which met March 8 to 10 in Washington, DC. Addressing dopa- minergic tone during sleep might help ameliorate daytime symptoms of parkinsonism in general.

Intensive therapy over short periods provides better outcomes than less intensive regimens performed over longer periods." This was the take-home message about rehabilitation for patients with aphasia from Ronald M. Lazar, PhD, professor of clinical neuropsychology in neurology and neurological surgery, and codirector of the Levine Cerebral Localization Laboratory at the Neurological Institute of New York at Columbia University College of Physicians and Surgeons.

Novel approaches for the evaluation and symptomatic treatment of Huntington disease (HD) were presented at the 59th Annual Meeting of the American Academy of Neurology held April 29 to May 5 in Boston. Interventions included use of tetrabenazine (TBZ) (as yet unapproved for the symptomatic treatment of hyperkinetic movement disorders in the United States but granted orphan drug status in 2004) and deep brain stimulation (DBS) of the globus pallidus externus (GPe).

Chronic primary daily headache may not be a singular disorder but rather one with various subtypes. Chronic migraine (also referred to as evolved migraine or transformed migraine), chronic tension-type headache, newly defined daily persistent headache, hemicrania continua, and post-traumatic headache are now recognized as subcategories of chronic daily headache

Migraine has been shown to cause absenteeism and lower productivity at work as well as reduced quality of life.1 According to the US Headache Consortium Guidelines, migraineurs with severe or moderate attacks should be treated with specific antimigraine medications, and prevention is recommended in those with frequent headaches as well as attacks that remain disabling despite optimal acute treatment.

When a new patient with depression enters your practice, you face a diagnostic dilemma. If you miss bipolar disorder (BD), and prescribe an antidepressant, you can do harm. But if you call a unipolar depression "bipolar," you may also do harm, because lithium, anticonvulsants, and atypical antipsychotics carry significant risk as both short- and long-term treatments. In addition, the label of "BD" currently carries much more stigma than the term "depression."

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.

Suicide is a serious public health problem that ranks as the 11th leading cause of death in the United States. Within the 15- to 24-year-old age group, it is the third leading cause of death.1 Many suicide victims have had contact with the mental health system before they died, and almost one fifth had been psychiatrically hospitalized in the year before completing suicide. A recent review found that psychiatric illness is a major contributing factor to suicide, and more than 90% of suicide victims have a DSM-IV diagnosis.

Physicians are often conflicted regarding prescription medications for pain, especially pain complicated by insomnia and anxiety. Concerns that patients may become addicted to medications, exacerbated by limited time available to get to know patients, can lead to underprescribing of needed medications, patient suffering, and needless surgery. At the other extreme, pressure to alleviate patients' distress can lead to overprescribing, needless side effects, and even addiction.

In the past few years, a great deal of information has been learned about how the brain processes ambiguous information. Data exist that allow us to view what the brain looks like when we are deliberately trying to deceive someone. In response, a number of corporations have been established that use these data--and the imaging technologies that gave them to us--to create brain-based lie detectors.

This article focuses on 4 issues in psychiatric malpractice: prescribing, liability for suicide, informed consent, and duty to protect under the Tarasoff v Regents of the University of California ruling. Malpractice is a civil wrong actionable by law. There are 2 goals of malpractice suits: the first is to make an injured plaintiff whole by an award of money, and the second is to inform the profession how courts will decide similar cases in the future.

Unlike a pure psychiatric disabilityevaluation, mental and emotionaldamage claims require anassessment of causation. Today, treatingpsychiatrists are increasingly asked toprovide this assessment, since mentaland emotional damages are widelyclaimed in the United States as a remedyin legal actions.

Paraphilias are defined by DSM-IV-TR as sexual disorders characterized by "recurrent, intense sexually arousing fantasies, sexual urges or behaviors generally involving (1) nonhuman objects, (2) the suffering or humiliation of oneself or one's partner, or (3) children or other nonconsenting persons that occur over a period of 6 months" (Criterion A), which "cause clinically significant distress or impairment in social, occupational, or other important areas of functioning" (Criterion B). DSM-IV-TR describes 8 specific disorders of this type (exhibitionism, fetishism, frotteurism, pedophilia, sexual masochism, sexual sadism, voyeurism, and transvestic fetishism) along with a ninth residual category, paraphilia not otherwise specified (NOS).

Each year, the CDC's National Center for Health Statistics creates a report on the current health status of the US. In addition to the issues usually addressed in this report, such as information on morbidity and mortality, vaccination rates, and use of health care resources, the recently released report contained a special feature on pain.