Sleep-Wake Disorders

Patients who experience seizure 24 hours after stroke onset may be at increased risk for death, according to Angela Rackley, MD, a clinical neurophysiology fellow in epilepsy, and coresearchers at the University of Cincinnati. Rackley presented an abstract on the incidence of seizures within 24 hours after acute stroke at the annual meeting of the American Epilepsy Society in San Diego this past December. She and colleagues found a higher 30- day mortality rate among patients who had a seizure within hours of stroke compared with patients who did not experience poststroke seizure.

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.

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).

Five words that are guaranteed to annoy your patientwith a diagnosis of psychogenic movementdisorder (PMD) are It's all in your head.It's the worst thing you can say, said Katie Kompoliti,MD, associate professor of neurological sciencesat Rush University Medical Center in Chicago.

Essential tremor significantly compromises patients' professional and personal lives.

Once again your patient, an accountant and tax specialist, is complaining about his sleep. More nights than not he awakens at about 2 am. An hour goes by, sometimes 2, before he returns to sleep. You've prescribed 4 different hypnotics. Each gave the same unsatisfactory result. For 2 weeks, your patient got the 8 hours of uninterrupted sleep he-and you-seek, but then the old pattern returned. Following your instructions, he avoids caffeine, doesn't exercise after 6 pm, and confines his activities in bed to sleep, but to no avail. You refer him to a sleep laboratory, and the results there are entirely consistent with what he's been telling you. In the sleep lab he falls asleep at 11 pm, awakens at 2:30 am, returns to sleep at 4 am, and awakens for good at 7:30 am. He does not have sleep apnea, restless legs syndrome, or depression.

Generalized anxiety disorder (GAD) is characterized by excessive or unrealistic anxiety and worries about life circumstances. In the general population, the prevalence of GAD is 2% to 5%. It is the most frequent anxiety disorder seen in primary care, where 22% of patients complain of anxiety problems.1 DSM-IV lists 6 somatic symptoms associated with GAD: restlessness, increased fatigability, difficulty in concentrating, irritability, muscle tension, and sleep disturbance. These symptoms may present with hyperarousal, hypervigilance, and heightened muscle tension; autonomic symptoms are milder than in other anxiety disorders and can be absent.

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.

Pharmacotherapy of Acute Schizophrenia

Cerebral Palsy: A Multisystem Review

Medications used in the treatment of bipolar disorder are commonly associated with weight gain. Antipsychotic drugs have been implicated in new-onset diabetes.

It can be difficult to determine whether unusual, paroxysmal behavior represents a seizure or a nonepileptic event. Patients with convulsive, clonic movements may, in fact, be experiencing psychogenic events.

That depression, anxiety, sleep disorders, and other neuropsychological conditions are often associated with chronic pain isn't news to most neurologists. But physicians who do not specialize in pain management are largely unaware of a growing body of research suggesting that the race (a genetic classification) or ethnicity (a cultural classification) of a patient with chronic pain may determine the patient's risk of neuropsychological symptoms.

Many physicians, including psychiatrists, may shy away from seeing elderly patients with symptoms of dementia because they imagine that there are a large number of alternative diagnoses and that differential diagnosis is complicated. In fact, however, the number of possible diagnoses in most situations is relatively small and the diagnosis of dementia in older patients is certainly feasible in primary care psychiatry.

Anxiety disorders are the most prevalent psychiatric disorders in the United States. Although effective treatments are available, such as the SSRIs and cognitive-behavioral therapy (CBT), it is estimated that in about 40% of patients, anxiety disorders are partially or completely resistant to first-line treatment.

ChEIs Beneficially Affect REM Sleep in AD. Cholinesterase inhibitors (ChEIs) do not modify disturbances of sleep-wake rhythm or sleep continuity in patients with either Alzheimer disease (AD) or frontotemporal dementia (FTD), but they may have a beneficial effect on REM sleep, according to investigators from the University of Marburg in Germany.

The Reflex Sympathetic Dystrophy Syndrome Association estimates that the CRPS affects between 200,000 and 1.2 million Americans. The underlying causes of the syndrome have yet to be defined, and no definitive diagnostic test exists even though CRPS was first described in the late 19th century by the neurologist Silas Weir Mitchell. Mitchell referred to the cluster of symptoms he noticed in some of the Civil War soldiers who were under his care as "causalgia.

Intrathecal baclofen therapy (IBT; Lioresal) may be underused in stroke patients with spasticity, according to a new survey by the National Stroke Association. Of patients responding to the survey, 58% experienced spasticity. Of these, only half (51%) received any type of treatment for their condition.

The degree to which season changes affect mood, energy, sleep, appetite, food preference, or desire to socialize with others has been called "seasonality." Identification of a seasonal pattern can only be made if both the patient and physician actively look for it.

Sleep disorders are very common and are often underrecognized and underreported in children. If left untreated, these disorders can cause serious developmental and physiologic problems.

An unfavorable prognosis may be in store for patients who report severely disrupted sleep patterns accompanied by rapid eye movement (REM).

Is apathy in patients with Parkinson disease (PD) merely a symptom of depression or a core symptom of PD itself?

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.

College students are far less likely to kill themselves than are nonstudent peers, according to a 10-year research study examining suicide rates at 12 Midwestern campuses.

DBS Provides a New Lease on Life