Boaz Levy, PhD, (left) receives the 2014 George Winokur Research Award from Carol S. North, MD, for his article on recovery of cognitive function in patients with co-occuring bipolar disorder and alcohol dependence.
Friday, March 28, 2014
MORNING SESSION
Carmen Pinto, MD, at a sponsored symposium, reviewed the utility and safety of
long-acting injectable (LAI) antipsychotics for treating schizophrenia, with a focus on LAI aripiprazole, a partial HT-receptor agonist/partial HT-receptor antagonist. Four monthly injections (400 mg/injection) of the drug are needed to reach steady state; each injection reaches peak level in 5 to 7 days. LAI aripiprazole has been shown to delay time to relapse due to nonadherence and onset of nonresponse to the drug, and has high patient acceptance—even in those who already stable. Safety and side effects with LAI aripiprazole are the same as seen with the oral formulation.
In multimodal therapy for chronic pain, psychiatrists have a role in assessing
psychiatric comorbidities, coping ability, social functioning, and other life functions, including work and personal relationships. Cognitive-behavioral therapy can be particularly useful for chronic pain by helping patients reframe their pain experiences. Raphael J. Leo, MA, MD, FAPM, University at Buffalo, reviewed non-opioid co-analgesics that can be used for patients with comorbid pain and a substance use disorder. If opioids are necessary, consider “weak” or long-acting opioids. Monitor patients for aberrant, drug-seeking behavior.
In the second part of his overview, Dr. Black highlighted specific changes to DSM-5 of particular concern to clinicians. New chapters were created and disorders were consolidated, he explained, such as autism spectrum disorder, somatic symptom disorder, and major neurocognitive disorder. New diagnoses include hoarding disorder and binge eating disorder. Subtypes of schizophrenia were dropped. Pathologic gambling was renamed gambling disorder and gender dysphoria is now called gender identity disorder. The bereavement exclusion of a major depressive episode was dropped.
Antidepressants are effective in mitigating pain in neuropathy, headache, fibromyalgia, and chronic musculoskeletal pain, and have been advocated for other pain syndromes. Selection of an antidepressant depends on the type of pain condition, comorbid depression or anxiety, tolerability, and medical comorbidities. Dr. Leo presented prescribing strategies for tricyclics, serotoninnorepinephrine
reuptake inhibitors, SSRIs, and other antidepressants.
Treating of BD in geriatric patients becomes complicated because therapeutic choices are narrowed and response to therapy is less successful with age, according to George T. Grossberg, MD, St. Louis University. Rapid cycling tends to be the norm in geriatric BD patients. Look for agitation and irritability, rather than full-blown mania; grandiose delusions; psychiatric comorbidity, especially anxiety disorder; and sexually inappropriate behavior. Pharmacotherapeutic options include: mood stabilizers, atypical antipsychotics, and antidepressants (specifically, bupropion and SSRIs—not TCAs, venlafaxine, or duloxetine—and over the short term only). Consider divalproex for mania and hypomania, used cautiously because of its adverse side-effect potential.
George T. Grossberg, MD
AFTERNOON SESSION
Often, BD is misdiagnosed as unipolar depression, or the correct diagnosis of BD is delayed, according to Gustavo Alva, MD, ATP Clinical Research. Comorbid substance use disorder or an anxiety disorder is common. Comorbid cardiovascular disease brings a greater risk of mortality in patients with BD than suicide. Approximately two-thirds of patients with BD are taking adjunctive medications; however, antidepressants are no more effective than placebo in treating bipolar depression. At this sponsored symposium, Vladimir Maletic, MD, University of South Carolina, described a 6-week trial in which lurasidone plus lithium or divalporex was more effective in reducing depression, as measured by MADRS, than placebo plus lithium or akathisia, somnolence, and extrapyramidal symptoms.
When assessing an older patient with psychosis, first establish the cause of the symptoms, such as Alzheimer’s disease, affective disorder, substance use, or hallucinations associated with grief. Older patients with schizophrenia who have been taking typical antipsychotics for years might benefit from a switch to an atypical or a dosage reduction. Dr. Grossberg recommends considering antipsychotics for older patients when symptoms cause severe emotional distress that does not respond to other interventions or an acute episode that poses a safety risk for patients or others. Choose an antipsychotic based on side effects, and “start low and go slow,” when possible. The goal is to reduce agitation and distress—not necessarily to resolve psychotic symptoms.
Anita H. Clayton, MD, University of Virginia Health System, provided a review of sexual function from puberty through midlife and older years. Social factors play a role in sexual satisfaction, such as gender expectations, religious beliefs, and the influence of reporting in the media. Sexual dysfunction becomes worse in men after age 29; in women, the rate of sexual dysfunction appears to be consistent across the lifespan. Cardiovascular disease is a significant risk factor for sexual dysfunction in men, but not in women. Sexual function and depression have a bidirectional relationship; sexual dysfunction may be a symptom or cause of depression and antidepressants may affect desire and function. Medications, including psychotropics, oral contraceptives, and opioids, can cause sexual dysfunction.