Addiction & Substance Use

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Sudden infant death syndrome (SIDS) is the leading cause of postneonatal death in the United States.1 This unfortunate disorder is characterized by the sudden, unexpected death of an of infant between ages 1 and 12 months whose cause of death remains a mystery in the aftermath of a thorough postmortem examination that includes an autopsy, an investigation of the death scene, and a careful review of the infant's medical history. New research, published in the November 2006 issue of The Journal of the American Medical Association,2 that made recent headlines confirmed earlier research by the same investigative team3,4 showing that serotonergic brain stem abnormalities may be the at the root of SIDS.

Theories about the causes of Parkinson disease (PD) are as tangled as the neurofilament proteins of Lewy bodies. However, investigators are teasing out threads of evidence that increasingly implicate environmental factors--perhaps aided and abetted by genetics--as contributors to this common neurodegenerative disorder.

Up to 30% of patients for whom opioids are prescribed for chronic pain show an escalating pattern of opioid abuse characterized by taking more opioids than prescribed, seeking early refills, and finding additional sources of opioids. Although many of these drug-seeking patients are addicted to opioids, some are suffering not from addiction but from inadequate pain management, according to Martha Wunsch, MD, chair of Addiction Medicine and associate professor of pediatrics at Edward Via Virginia College of Osteopathic Medicine (VCOM) in Blacksburg.

The ideal medication for Parkinson disease (PD) would reduce disability and halt or slow disease progression without intolerable adverse effects. Although such an agent is not yet available, current treatments offer significant symptom control for most patients. The decision about when to start therapy is highly individual; however, delaying treatment because of fear of adverse effects may not be in the patient's best interest.

Rehabilitative therapy may be effective in patients many months after stroke. Patients who underwent constraint-induced movement therapy (CIMT) within 3 to 9 months after stroke showed significant rehabilitation of the affected limb in a study led by Steven Wolf, PhD, professor of rehabilitation medicine at Emory University in Atlanta

Psychotic disorders are a group of syndromes characterized by positive symptoms, including hallucinations, delusions, and thought disorder; and negative symptoms, including mood symptoms, social withdrawal, and reduced motivation. Cognitive deficits also appear with psychotic disorders. Psychotic disorders rank 22nd in the World Health Organization's list of worldwide causes of disability. This ranking is adjusted for the relatively low lifetime prevalence rate for psychosis; the perceived burden of the disease on those affected with psychotic disorders, as well as their relatives and caregivers, is much higher.

Once reflected on, the concept of acceptance has multifarious implications for modern mental health care. My own work with patients and trainees has convinced me of the significance of acceptance, and I want to illustrate a few examples that may move readers to recognize similar echoes in their own practice

Substance use disorder (SUD) plays a prominent role in the epidemiology, cause, and course of mental illness. Of the more than 5 million Americans with comorbid mental illness and SUD, fewer than half received treatment at either a specialty mental health or substance abuse treatment facility.

The prevalence of substance use disorders in patients with schizophrenia is greater than the rate observed in the general population, with a dramatic increase since the 1970s. Several theories exist to explain the high rate of comorbidity. The "self-medication" hypothesis suggests that persons may abuse substances to treat underlying psychotic symptoms or adverse effects of medications commonly used to treat schizophrenia.

Psychiatrists certainly do not know all the answers when it comes to the recent spate of school shootings, but we do know some of the most pressing questions. For example, is there a difference in the psychological makeup of adult shooters versus student, or juvenile, shooters? To what degree does untreated psychosis or depression play a part in the shooter's seemingly inexplicable behavior? How important is bullying in motivating some students to seek revenge on their peers? What are the earliest warning signs of an impending attack by an assailant of any age?