Evidence-Based Therapies in Child and Adolescent Psychiatry by Jon McClellan, M.D. Given the lack of large, randomized controlled studies of psychiatric medications that involve children and adolescents, it can be difficult to establish evidence-based therapies that are effective for this population. However, there are studies that have shown the effectiveness of various medications, as well as for various psychotherapy techniques.
The Emerging Role of GABAergic Mechanisms in Mood Disorders by Po W. Wang, M.D., and Terence A. Ketter, M.D. Gamma-aminobutyric acid is a major inhibitory neurotransmitter widely distributed in the mammalian central nervous system. Animal models of depression have pointed toward the importance of the GABA system in the pathophysiology of mood disorders. Thus, elucidating the GABAergic effects of benzodiazepines, mood stabilizers, antidepressants, and new anticonvulsants and antipsychotics may expand our understanding of mood disorder pathophysiology and potentially generate new targets for treatment.
Posttraumatic stress disorder is one of the most devastating psychiatric disorders. Research has shown that a combination of multiple genes can lead to conditions for PTSD. Environmental factors, as well as comorbidities, must also be considered when looking for genetic conditions of PTSD.
Although lithium is still a first-line treatment for bipolar disorder, many psychiatrists are reluctant to use it due to blood monitoring requirements. The FDA has approved an in-office blood test that allows lithium blood levels to be obtained in minutes. The test is similar to glucose monitoring devices used for diabetes, and experts on BD are hoping it will increase the use of lithium, which has also been shown to lower the suicide rate among patients with this disorder.
New research into the genetic basis and possible genetic markers for attention-deficit/hyperactivity disorder may open the door for new treatments. There is a clear concordance between twins who have ADHD, as well as siblings. What can genetic mapping tell us about treating ADHD?
Kapur S, Arenovich T, Agid O, et al. Evidence for onset of antipsychotic effects within the first 24 hours of treatment. Am J Psychiatry. 2005;162:939-946.
Impulsive behaviors play an important role in both bipolar and substance abuse disorders. However, results of studies investigating this link are often ambiguous, in part, due to the multidimensional nature of the impulsivity construct and the fact that many studies use a single measurement technique. We describe a model of impulsivity characterized by three components: response initiation, response inhibition and consequence sensitivity. How these components differ from one another in terms of their use, behavioral theory and biological function is discussed, along with measurement techniques.
Proposed changes in the conceptualization of compulsivity and impulsivity in the DSM-V will have important implications in the way clinicians recognize and treat these disabling conditions.
Diagnosis of the two main major eating disorders, anorexia nervosa and bulimia nervosa, can be difficult because of denial of symptomatology by the patients and problems with some of the diagnostic criteria. Although CBT has been the most effective, there are no treatments available that can guarantee a cure for either disorder. Medication is only a helpful adjunct to the treatment of anorexia, while many controlled studies that show antidepressant medications are effective in reducing binge/purge behavior in bulimia.
Autism is a highly prevalent, highly heterogeneous disorder of unknown etiology. Studies to clearly establish the efficacy of various classes of psychoactive drugs are scarce. Nonetheless, available findings do support the efficacy of atypical antipsychotics and antidepressants in treating the core symptoms of repetitive behavior.
"Pseudodementia" needs a third look. Always a "soft" diagnosis, it has never had objective, explicit diagnostic criteria or a spot in an official nomenclature.
Little attention has been paid to the prevalence of sexual assault and its sequelae among military men. The past-year prevalence of sexual assault among enlisted men ranges from 0.4% to 3.7%, a figure equal to or exceeding the lifetime prevalence among civilian men in some studies. Increased awareness and understanding of male sexual assault as well as routine screening of all patients, regardless of gender, for exposure to sexual victimization will enhance their recovery.
The dozens of journalists killed while covering the current war in Iraq gives currency to the dangers encountered by those who bring us the news from the world's conflict zones. Despite the risks inherent in their profession, it is only recently that the psychological health of war reporters has been captured in a systematic and empirical manner.
Road rage is well known in popular culture and to many people it is a common and dangerous experience. Alcohol problems, illicit drug use and general psychiatric distress are associated with road rage perpetration. Road rage incidents may also result in psychiatric distress. Although treatment for road rage has received little research attention, encouraging results have been reported from specialized programs.
Medical-psychiatric comorbidity predicts poorer outcomes and increased health care utilization and cost. The collection of articles in this Special Edition is clinically informative and an illustrative set of examples of the unique practice of psychosomatic medicine in different medical-surgical settings.
Comorbid substance use disorders may complicate treatment for both the hepatologist and psychiatrist. Comprehensive assessment of psychiatric illness and psychopharmacological management may be critical.
Attempts have been made to integrate psychiatry and medicine as far back as Benjamin Rush, a physician and signer of the Declaration of Independence. Recent advances in research, clinical practice and organizational makeup, however, now make integration seem more plausible than ever. Find out what's happening to bring these two fields closer together.
It’s a classic risk/benefit dilemma: Does preventing suicidality-assuming suicidality can predict suicide-justify scaring some doctors away from prescribing antidepressants for young patients?
Tricyclic antidepressants and antipsychotics are known to prolong cardiac repolarization and induce QTC interval prolongation, possibly putting patients with mental disorders at higher risk of cardiovascular diseases. The mechanism of gender difference in vulnerability for cardiovascular diseases is still unclear, but the role of hormones is one of possible explanatory factors.
Although a lot remains to be learned, much is already known about the early childhood characteristics that predispose children to antisocial behavior and violence in adolescence and early adulthood, an expert in psychopathology said recently at a National Institutes of Health conference.
The relationship between depression and epilepsy is bidirectional as not only are patients with epilepsy at higher risk of developing depression but patients with depression have a three- to sevenfold higher risk of developing epilepsy. Several studies have found that the presence of depression in patients with intractable epilepsy was a stronger predictor of poor quality of life than the frequency and severity of seizures. The principles of managing depression in epilepsy are reviewed in this article.
Migraine affects approximately 12% of the population, and a high percentage of these patients have comorbid psychiatric disorders. Knowing more about the interaction between headache and psychiatric factors can assist in evaluating and treating these patients.
Despite the fact that awareness of HIV and AIDS transmission is pervasive, risky sexual behavior has been increasing in many parts of the world in recent years, with a concomitant rise in new cases of HIV and other sexually transmitted diseases.
A cross-cultural comparison of suicide in old age, including a discussion of recent epidemiological trends in suicide rates. The authors also discuss the impact of social and cultural variables on the detection of depression and the formulation of suicide prevention strategies.
Patients with anorexia nervosa often attempt to deceive health care professionals because they do not want treatment for their disorder. Thus, physicians must maintain a high index of suspicion for signs and symptoms of AN due to its potentially fatal complications.
