Depression

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Medical residents with depression are approximately 6 times more likely to make medication errors than those without depression, according to a study published online on February 7 in the British Medical Journal. A team led by Amy M. Fahrenkopf, MD, instructor of pediatrics, Harvard Medical School, Boston, conducted the prospective cohort study.

Cumulative research with animal, normative, and clinical populations over several decades shows that the mechanisms underlying anxiety disorders differ from those of the normal emotion of anxiety. In persons with anxiety disorders, fear and tension are disproportionate to the actual threat and may be present when no real threat exists, thereby generating an expectation of danger and distorted perceptions related to danger and various types of threats. The most common anxiety disorders are social anxiety disorder (SAD), generalized anxiety disorder (GAD), and posttraumatic stress disorder (PTSD). Persons with SAD can experience a wide range of social fears as well as severe functional consequences, whereas persons with GAD tend to experience emotional, interpersonal, and somatic symptoms of high levels of chronic anxiety. Persons with PTSD have vivid memories of and thoughts about a terrifying event or ordeal that lead to the development of anxiety, depression, and functional impairment. Effective treatment options-pharmacotherapy; psychotherapy, particularly cognitive-behavioral therapy; or a combination-can be discussed openly with the patient to make a collaborative, informed decision. A variety of medications can be used to successfully manage anxiety disorders, of which SSRIs and serotonin-norepinephrine reuptake inhibitors are the most effective. When properly used, medications can enhance a patient's own efforts to master anxiety; overcome fearful avoidance; and address troubling behaviors, patterns, or memories. (Drug Benefit Trends. 2008;20:101-113)

Depression was diagnosed 6 years earlier in a 37-year-old woman; it has been successfully managed since then with fluoxetine and outpatient psychotherapy. Since her teenage years, the patient has also experienced sporadic (fewer than 3 or 4 per year) mild or occasionally severe headaches, which she has usually self-treated with over-thecounter (OTC) agents or "just slept off."

An analysis of data from the National Comorbidity Survey, a nationally representative sample of persons aged 15 to 54 years (N = 8098), suggests that those who exercise regularly are less likely to report being depressed or having an anxiety disorder.1 The association between regular physical activity and lower prevalence of major depression (odds ratio [OR], 0.75) is fairly specific. Dysthymia, for example, was only minimally responsive to exercise, and there was no correlation between regular exercise and reduced risk of bipolar disorder. Psychotic disorders and substance abuse also were not substantially affected by regular physical activity. However, certain anxiety disorders, particularly panic attacks and phobias, were found to be less prevalent among self-reported exercisers.

The American Psychiatric Association (APA) and the American Academy of Child and Adolescent Psychiatry (AACAP) renewed their 2004 call for a mandatory public clinical trial registry to be established and overseen by the federal government. This is in response to a study that showed that research on antidepressants is published selectively-effectively suppressing trials deemed negative and overstating the benefits of antidepressant therapy. The study was published in the January 17 issue of the New England Journal of Medicine.

Adherence is a complex behavioral process strongly influenced by environmental factors. Six posters designed to improve medication adherence were displayed in a medical clinic, with each poster displayed for 1 month. These posters were seen by clinic patients but, as passive measures, required no additional time on the part of clinicians. Medication adherence to antidepressant therapy was assessed for two 18-month periods. Days of therapy and median gap (the number of days a patient goes without medication before filling the next prescription) were similar between the periods. Medication possession ratio (MPR) was increased in the intervention period (0.974 vs 0.994 days). During the 6-month period that the adherence posters were displayed, persistence decreased by only 10% (versus 22% for the nonintervention period). Use of passive measures may improve patient medication adherence. In this prospective study, both the MPR and persistence were improved. (Drug Benefit Trends. 2008:20:17-24)

Premenopausal women with major depressive disorder (MDD) have less bone mineral density (BMD) than those without MDD, according to findings of a study published in the November 26 issue of Archives of Internal Medicine. Researchers reported that the level of bone loss in premenopausal women with MDD was at least as high as that associated with recognized risk factors for osteoporosis. The study was funded by the National Institute of Mental Health, the National Institute of Diabetes and Digestive and Kidney Diseases, the National Center for Complementary and Alternative Medicine, and the Warren Magnuson Clinical Center of the NIH.

PITTSBURGH, Oct. 15 -- About 1% of bariatric surgery patients die within a year of surgery, researchers here found, and the cumulative case fatality rate approaches 6% after five years.

PITTSBURGH -- There is strong evidence suggesting -- but not proving -- the existence of a causal link between psychological stress and chronic conditions such as depression, cardiovascular disease, and HIV/AIDS, asserted researchers here.

SALT LAKE CITY -- Forecasts that physician-assisted suicide and euthanasia would be practiced disproportionately on vulnerable groups, such as the poor, the elderly, and women, did not prove accurate, according to researchers here.

BETHESDA, Md. -- An aggressive workplace program for identifying and treating depression is both good medical practice and good business, investigators here said.