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Audio-Digest FoundationPsychiatry


Volume 37, Issue 05
March 7, 2008

The following is an abstracted summary, not a verbatim transcript, of the lectures/discussions on this audio program. If, after reviewing this written summary, you would like to hear the contents and/or earn CME/CE credit, simply visit the Audio-Digest Foundation website

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POSTTRAUMATIC STRESS DISORDER: PART 2

PSYCHOPHARMACOLOGY FOR POSTTRAUMATIC STRESS DISORDER— Frank Schoenfeld, MD, Professor Emeritus, Department of Psychiatry, University of California, San Francisco, School of Medicine, and Veterans Affairs Medical Center, San Francisco
Introduction: with or without treatment, 30% of people with posttraumatic stress disorder (PTSD) develop chronic condition that is unremitting and difficult to moderate
Early intervention: better; a few studies have looked at pharmacotherapy in emergency departments (EDs); one study found that benzodiazepines given in ED did not prevent development of PTSD; more recent study found propranolol (160 mg/day for 10 days) did not prevent development of PTSD, but did eliminate physiologic response to script-driven reminder of trauma
Acute stress disorder: more severe variant of acute stress response; same symptoms as PTSD, with addition of significant dissociative symptoms; occurs early in course after traumatic event; few open or closed trials of medication treatment; most research done in pediatric burn units, where imipramine found to help control pain and to reduce symptoms of acute stress disorder; in study, fluoxetine shown as effective as imipramine
Treatment of PTSD: few studies of medication treatment during 1 to 3 mo after trauma; in most studies, cognitive behavioral treatments shown effective; medication may provide sedation and relieve agitation; early psychosocial and psychopharmacologic intervention may reduce chronicity; medications to consider include β-adrenergic blockers, α2 -adrenergic agonists, antidepressants, benzodiazepines, and mood stabilizers; all data on use of medications (except for propranolol) based on clinical experience, not on studies; no single agent reliably effective
Goals of pharmacotherapy for PTSD: reduce or ameliorate target symptoms; improve mood and emotional numbing; reduce phasic and tonic hyperarousal; improve sleep; reduce impulsivity; reduce psychotic and/or dissociative symptoms; treat comorbid psychiatric disorders
Antidepressants: many studied in randomized placebo-controlled trials, but sample sizes usually small and size of treatment effect modest; some studies included only victims of military trauma, some only civilian trauma, and some mixed; in general, victims of military trauma less responsive to most interventions, including medications
Selective serotonin reuptake inhibitors (SSRIs): sertraline and paroxetine approved by Food and Drug Administration (FDA) for treatment of PTSD; in studies, SSRIs had positive effect on all 3 symptom clusters of PTSD; all other categories of antidepressants had no effect on numbing and avoidance symptoms; typical drug studies lasted 4 to 12 wk, but one sertraline open-label study extended to 24 wk and showed improvements on Clinician Administered PTSD Scale (CAPS); discontinuation phase of same study showed significant decline in benefit when drug discontinued
Other antidepressants: trazodone—commonly added to SSRI to help with sleep; speaker discourages its use as stand-alone agent because of sedative effects; bupropion—can be helpful as adjunctive agent in persistent comorbid depression that does not respond to primary antidepressant; venlafaxine—6-mo study showed no further improvement after first 3 mo of treatment; less helpful than sertraline for arousal symptoms; mirtazapine—large study under way for use in PTSD
Antianxiety agents: “remarkably little research done on the use of benzodiazepines for the treatment of PTSD”; only one study done (with alprazolam), which showed that benzodiazepine did help with anxiety in PTSD; buspirone— “looks promising,” but almost no work done for treatment of PTSD
Adrenergic inhibiting agents: propranolol used infrequently in chronic PTSD, due to side-effect profile; guanfacine not shown to improve PTSD symptoms; in one study, prazocin found to help with sleep disturbance, changing subjective quality of nightmares
Atypical antipsychotic agents: not routinely used for PTSD, except in cases in which patient has unremitting dissociative symptoms, psychotic symptoms, and/or impulsive aggressive behavior; in studies, olanzapine had positive influence on PTSD symptoms, even in absence of psychosis; risperidone showed similar results, as well as improvement of comorbid psychoses; quetiapine used to help with sleep (lack of evidence)
Mood stabilizers: use based on hypothesis that limbic system particularly vulnerable to kindling from repeated stimuli; however “in practice we are using them for affective lability, impulsive aggressive behavior, and co-occurring mood-swing disorder”
Comorbidity: >80% of people with PTSD have one other psychiatric diagnosis, and >50% have 3; choose medication most likely to help PTSD and comorbidity, while having most favorable side-effect profile and fewest interactions with other drugs; most common comorbidity with PTSD major depression (major depressive disorder or bipolar disorder); comorbid anxiety disorders include panic disorder and phobias; substance abuse common (almost 50% in civilian studies); psychotic symptoms seen in 40% of hospitalized patients in one Veterans Affairs study; rapid escalation to anger common and “needs to be addressed”
Stage-based pharmacotherapy for PTSD: during first hours, reduce terror and neuronal imprinting with adrenergic blockers; during first days, reduce sensitization and memory consolidation with adrenergic blockers and/or mood stabilizers; during first months, reduce symptoms with SSRIs and low-dose trazodone for sleep; after first year, reduce symptoms and comorbidity with SSRIs, adrenergic blockers, and/or mood stabilizers
Future directions: adrenergic antagonists at time of exposure to traumatic event; corticotropin-releasing factor antagonists; neuropeptide Y enhancers; substance P antagonists; N-methyl-D-aspartate (NMDA) facilitators; reversible monoamine oxidase inhibitors (MAOIs); mixed adrenergic and serotonergic agents
CONJOINT TREATMENT FOR PTSD—Candice M. Monson, PhD, United States Department of Veterans Affairs; Associate Professor of Psychiatry, Boston University School of Medicine; and Deputy Director, Women’s Health Services Division, National Center for PTSD, Boston, MA
Introduction: all trauma occurs in interpersonal context; by definition, human-caused trauma completely interpersonal, and technologic and natural disasters usually experienced by group of people
Relationship quantity: defined as likelihood of marrying and divorcing; compared to individuals without PTSD, those with PTSD equally likely to marry but 1.5 times more likely to divorce; study of veterans 15 yr after Vietnam war showed those with PTSD less likely to marry and twice as likely to divorce; in Canadian study, couples in which one partner had PTSD 4 times more likely to be distressed than couples without mental health diagnosis, and PTSD was second most frequent diagnosis to be associated with marital distress; clinical studies that recruit patients with PTSD find these individuals have relationship conflicts in more areas (eg, sex, parenting); couples with PTSD less cohesive, spend less close time together, have less emotional expressiveness, and less engagement in relationship
Reevaluation of veterans of Iraq and Afghanistan: authors studied active-duty and reserve soldiers 3 to 6 mo after deployment; 58% of them married (higher than in previous wars, due to extensive use of reservists); from time soldiers arrived home until assessment 3 to 6 mo later, interpersonal conflict increased 4-fold; authors concluded that spouses and partners “a major portal to treatment”; therapists could use spouses and partners to get people with PTSD and their significant others into treatment
Domestic violence: 33% of Vietnam veterans with PTSD perpetrated physical aggression against partner in previous year, compared to about half that many without PTSD; greater the severity of PTSD, greater the frequency and severity of acts of violence
Characteristics of family with PTSD: little empiric data, but anecdotal literature finds systemic compensation (ie, partner who does not have PTSD picks up much of caregiving burden and sometimes financial burden); these families also tend to have more stereotypical opinions about gender roles and to have rigid expectations and boundaries for all family members; major problems identified in these families include depression, anxiety, diminished quality of life, and feeling demoralized
Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV): defines 3 clusters of symptoms associated with PTSD; cluster C symptoms, especially emotional numbing, most associated with problems in intimate relationships; patient unable to feel love for or primary connections to significant other; hyperarousal symptoms (cluster D) most associated with acts of aggression; important to rule out alcohol consumption as cause of aggression; National Vietnam Veterans Readjustment Study (NVVRS) found high frequency of drinking and high quantity of alcohol, low frequency of drinking and high quantity of alcohol, and low frequency of drinking and low quantity of alcohol associated with increased aggression; surprisingly, high frequency of drinking and low quantity of alcohol associated with decreased aggression (but “I’d be slow to recommend many days’ use of alcohol at low quantities to my patients”)
Take-home messages from NVVRS: 1) PTSD (as opposed to just being exposed to trauma) is mechanism identified as increasing aggression; 2) in trying to determine whether particular veteran at higher risk for perpetrating aggression against intimate partner, important to determine how much he or she perceives threat in domestic environment (combat exposure may be protective factor; in study, the more combat exposure experienced, the less incidence of intimate-partner violence)
Nonveteran populations: speaker and group studied women within 3 mo of experiencing large flood in Midwest; all symptom clusters seemed to be associated with relationship satisfaction, suggesting emotional numbing may be due to chronicity of PTSD rather than to acute stages of trauma exposure; additional stressors in this study included relocation and insurance issues; in short term, these were associated with more relationship satisfaction, which in turn decreased likelihood of individual experiencing symptoms of PTSD
Conjoint therapy: spouse or partner often spurs person with PTSD into getting help; stigma associated with seeking mental health services, especially among military personnel, and significant other may be able to help patient overcome stigma; 25% to 50% of people in treatment for PTSD drop out, and speaker speculates that having significant other involved with treatment may help lower that incidence; in addition, conjoint therapy may help improve relationship functioning; studies show conventional treatment improved PTSD symptoms but not social functioning; in literature, patients who came from families with high expressed emotion did not do as well as those from families with low expressed emotion; conjoint therapy shown to be effective for diagnoses other than PTSD, and speaker posits that it will be as effective for families with PTSD
Speaker’s conjoint therapy: not partner-coaching model, mainly because those with PTSD often partner with someone who has been traumatized or who has major depression, “so we assume that there’s something problematic about their interactions that we want to correct [and] that can simultaneously improve their relationship as well as decrease the PTSD symptoms”; program lasts for 15 sessions of 1 hr 25 min each; it is trauma- focused but not exposure-based; exposure therapy should be done, but speaker’s program focuses on what trauma experience means to patient and significant other; first phase of therapy focuses on introduction, psychoeducation, and safety building; second phase focuses on relationship enhancement and decreasing avoidance; third phase focuses on cognitive restructuring in dyadic interactions
Phase 1: psychoeducation given in interpersonal context, helping family to understand why patient has symptoms and how they affect relationship (eg, reexperiencing through nightmares may lead couple to stop sleeping together); role of avoidance in relationship stressed; family encouraged to decrease negatives in relationship and to increase positives
Phase 2: training in behavioral skills that increase listening and paraphrasing, assertiveness, and communication; couple taught to identify and express emotions, and to externalize and analyze thoughts
Phase 3: using benefits that have come from strengthening relationship, decreasing avoidance, and better communications to make meaning of traumatic event; couple learns importance of disclosure in safe environment to create resilience; specific themes addressed include safety, trust, power, control, and intimacy; planning for future struggles in relationship
What still needs to be done: longitudinal study of mechanisms of key factors in relationships; investigation of sex differences; development of prevention techniques that take advantage of social-support mechanisms; exploration of how to prevent chronic and more pernicious types of PTSD with swift and effective intervention; trials to see if couple/family interventions can work as well with PTSD as with other conditions

Suggested Reading

Calhoun PS et al: Objective evidence of sleep disturbance in women with posttraumatic stress disorder. J Trauma Stress 20:1009, 2007; Ehring T et al: Screening for posttraumatic stress disorder: what combination of symptoms predicts best? J Nerv Ment Dis 195:1004, 2007; Feldner MT et al: A critical analysis of approaches to targeted PTSD prevention: current status and theoretically derived future directions. Behav Modif 31:80, 2007; Freedman SA et al: Predictors of chronic post-traumatic stress disorder. A prospective study. Br J Psychiatry 174:353, 1999; Gelpin E et al: Treatment of recent trauma survivors with benzodiazepines: a prospective study. J Clin Psychiatry 57:390, 1996; Gutner CA et al: Changes in coping strategies, relationship to the perpetrator, and posttraumatic distress in female crime victims. J Trauma Stress 19:813, 2006; Jakupcak M et al: Anger, hostility, and aggression among Iraq and Afghanistan war veterans reporting PTSD and subthreshold PTSD. J Trauma Stress 20:945, 2007; Marmar CR et al: New directions in the pharmacotherapy of posttraumatic stress disorder. Psychiatr Q 73:259, 2002; Monson CM et al: Cognitive processing therapy for veterans with military-related posttraumatic stress disorder. J Consult Clin Psychol 74:898, 2006; Monson CM et al: Cognitive-behavioral couple’s treatment for posttraumatic stress disorder: initial findings. J Trauma Stress 17:341, 2004; Monson CM et al: Emotional deficits in military-related PTSD: an investigation of content and process disturbances. J Trauma Stress 17:275, 2004; Monson CM et al: Cognitive-behavioral therapy for PTSD in the real world: do interpersonal relationships make a real difference? J Clin Psychol 61:751, 2005; Morey RA et al: Neural systems for executive and emotional processing are modulated by symptoms of posttraumatic stress disorder in Iraq War veterans. Psychiatry Res 162:59, 2008; Pitman RK et al: Pilot study of secondary prevention of posttraumatic stress disorder with propranolol. Biol Psychiatry 51:189, 2002; Pitman RK et al: Psychophysiological alterations in post-traumatic stress disorder. Semin Clin Neuropsychiatry 4:234, 1999; Price JL et al: The role of emotional functioning in military-related PTSD and its treatment. J Anxiety Disord 20:661, 2006; Rotunda RJ et al: Behavioral couples therapy for comorbid substance use disorders and combat-related posttraumatic stress disorder among male veterans: an initial evaluation. Addict Behav 33:180, 2008; Schoenfeld FB et al: Current concepts in pharmacotherapy for posttraumatic stress disorder. Psychiatr Serv 55:519, 2004; Sherman MD et al: Domestic violence in veterans with posttraumatic stress disorder who seek couples therapy. J Marital Fam Ther 32:479, 2006.

Educational Objectives

The goal of this program is to improve treatment of posttraumatic stress disorder (PTSD). After hearing and assimilating this program, the clinician will be better able to:
1. Provide pharmacologic treatment in the acute phase of PTSD.
2. Discuss the classes of medications that might be of benefit in the treatment of chronic PTSD.
3. Explain the manner in which PTSD in one family member can affect intimate relationships.
4. Describe the characteristics of families with PTSD.
5. Explore the uses of conjoint therapy in the treatment of PTSD.

Faculty Disclosure

In adherence to ACCME Standards for Commercial Support, Audio-Digest requires all faculty and planning committee members to disclose relevant financial relationships within the past 12 months that might create any personal conflicts of interest. Any identified conflicts were resolved to ensure that this educational activity promotes quality in health care and not a proprietary business or commercial interest. For this program, the faculty and planning committee reported nothing to disclose.

Acknowledgements

Dr. Schoenfeld was recorded at PTSD: In an Age of Violence, Terror, and Disaster, held November 9-10, 2007, in San Francisco, CA, and sponsored by the Veterans Affairs Medical Center, San Francisco, and the University of California, San Francisco, School of Medicine. Dr. Monson was recorded at the Second Annual Posttraumatic Stress Disorder Symposium, held November 30, 2007, in Cleveland, OH, and sponsored by the Cleveland Clinic. The Audio-Digest Foundation thanks the speakers and the sponsors for their cooperation in the production of this program.

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