PTSD and TBI co-morbidity: scope, clinical presentation and treatment options

PRIMARY OBJECTIVE

To summarize the literature on post-traumatic stress disorder (PTSD) and traumatic brain injury (TBI) and their co-morbidity, focusing on diagnosis, clinical symptoms and treatment issues relevant to the clinician.

RESEARCH DESIGN

Review of the literature.

METHODS AND PROCEDURES

Pubmed searches were performed using the terms post-traumatic stress disorder, traumatic brain injury, sleep, cognitive, depression, anxiety, treatment and combinations of these terms. Those articles relevant to the objective were included.

MAIN OUTCOMES AND RESULTS

This study presents pathophysiological, neuroimaging and clinical data on co-morbid PTSD and TBI. It reviews associated conditions, emphasizing the impact of cognitive and sleep problems. It summarizes the emerging literature on treatment effectiveness for co-morbid PTSD and TBI, including psychotherapy, pharmacotherapy and cognitive rehabilitation.

CONCLUSIONS

Both PTSD and TBI commonly occur in the general population, both share some pathophysiological characteristics and both are associated with cognitive impairment and sleep disruption. PTSD and TBI present with a number of overlapping symptoms, which can lead to over-diagnosis or misdiagnosis. Both conditions are associated with co-morbidities important in diagnosis and treatment planning. More research is needed to elucidate what treatments are effective in PTSD and TBI co-morbidity and on factors predictive of treatment success.

Mental health service utilization of Somali adolescents: religion, community, and school as gateways to healing

This mixed-method study examines the utility of the Gateway Provider Model (GPM) in understanding service utilization and pathways to help for Somali refugee adolescents. Somali adolescents living in the Northeastern United States, and their caregivers, were interviewed. Results revealed low rates of use of mental health services. However other sources of help, such as religious and school personnel, were accessed more frequently. The GPM provides a helpful model for understanding refugee youth access to services, and an elaborated model is presented showing how existing pathways to help could be built upon to improve refugee youth access to services.

Military unit support, postdeployment social support, and PTSD symptoms among active duty and National Guard soldiers deployed to Iraq

Research suggests that military unit support and community postdeployment social support are associated with fewer PTSD symptoms following military deployment. This study extended prior research by examining the associations among predeployment unit support and PTSD symptoms before Iraq deployment as well as unit support, PTSD symptoms, and postdeployment social support after deployment among 835 U.S. Army and 173 National Guard soldiers. Multiple regression analyses indicated that predeployment unit support was not significantly associated with postdeployment PTSD severity in either group of soldiers, whereas higher unit support during deployment was significantly associated with lower postdeployment PTSD severity among active duty soldiers only. Among both groups, higher levels of postdeployment social support were associated with lower levels of postdeployment PTSD symptom severity. These findings suggest that postdeployment social support is a particularly strong buffer against postdeployment PTSD symptoms among both groups of soldiers whereas the effects of unit support may be limited.

Screening for PTSD among Somali adolescent refugees: psychometric properties of the UCLA PTSD Index

This study presents the psychometric properties for the UCLA Posttraumatic Stress Disorder Index among a sample of Somali adolescents. Data were derived from a sample of English-speaking Somali adolescent refugees between the ages of 12 and 19 years (n=76). The UCLA PTSD Index showed good reliability (Cronbach's alpha=.85). Convergent validity was assessed through bivariate correlations with the Depression Self Rating Scale (r=.72, p<.001) and the War Trauma Screening Scale (r=59, p<.001). Results suggest that the UCLA PTSD Index may be a reliable and valid screening tool for PTSD symptoms for use with Somali adolescent refugees.

Understanding the impact of complicated grief on combat related posttraumatic stress disorder, guilt, suicide, and functional impairment in a clinical trial of post-9/11 service members and veterans

BACKGROUND

Complicated grief (CG) is a bereavement-specific syndrome distinct from but commonly comorbid with posttraumatic stress disorder (PTSD). While bereavement is common among military personnel (Simon et al., 2018), there is little research on the impact of CG comorbidity on PTSD treatment outcomes.

METHODS

To evaluate the impact of comorbid CG on PTSD treatment outcomes we analyzed data from a randomized trial comparing prolonged exposure, sertraline, and their combination in veterans with a primary diagnosis of combat-related PTSD (n = 194). Assessment of PTSD, trauma-related guilt, functional impairment, and suicidal ideation and behavior occurred at baseline and weeks 6, 12, and 24 during the 24-week trial.

RESULTS

CG was associated with lower PTSD treatment response (odds ratio (OR) = 0.29, 95% confidence interval (CI) [0.12, 0.69], p = 0.005) and remission (OR = 0.28, 95% CI [0.11, 0.71], p = 0.007). Those with CG had greater severity of PTSD (p = 0.005) and trauma-related guilt (<0.001) at baseline and endpoint. In addition, those with CG were more likely to experience suicidal ideation during the study (CG: 35%, 14/40 vs. no CG 15%, 20/130; OR = 3.01, 95% CI [1.29, 7.02], p = 0.011).

CONCLUSIONS

Comorbid CG is associated with elevated PTSD severity and independently associated with poorer endpoint treatment outcomes in veterans with combat-related PTSD, suggesting that screening and additional intervention for CG may be needed.

Psychometric analyses of the Clinician-Administered PTSD Scale (CAPS)--Bosnian Translation

Methods for assessing psychological distress in culturally diverse populations are not firmly established. This study was designed to examine the psychometric properties of the Bosnian translation of the Clinician-Administered PTSD Scale (CAPS; D. D. Blake, F. W. Weathers, L. M. Nagy, D. Kaloupek, G. Klauminzer, D. Charney, et al., 1995) in a Bosnian refugee sample. The authors interviewed 115 help-seeking Bosnian refugees with the CAPS-Bosnian translation to examine its internal consistency and convergent validity, and to provide an assessment of its factor structure. This study demonstrated optimal fit with a 2-factor model of posttraumatic stress disorder (PTSD); the authors also found high reliability with a coefficient alpha of 0.92 and strong convergent validity with instruments measuring depression, anxiety, and levels of psychosocial functioning. Future directions for the assessment of PTSD in cross-cultural populations are discussed.

The loss of a fellow service member: Complicated grief in post-9/11 service members and veterans with combat-related posttraumatic stress disorder

Bereavement is a potent and highly prevalent stressor among service members and veterans. However, the psychological consequences of bereavement, including complicated grief (CG), have been minimally examined. Loss was assessed in 204 post-9/11, when service members and veterans with combat-related posttraumatic stress disorder (PTSD) took part in a multicenter treatment study. Those who reported the loss of an important person completed the inventory of complicated grief (ICG; n = 160). Over three quarters (79.41%) of the sample reported an important lifetime loss, with close to half (47.06%) reporting the loss of a fellow service member (FSM). The prevalence of CG was 24.75% overall, and nearly one third (31.25%) among the bereaved. CG was more prevalent among veterans who lost a fellow service member (FSM) (41.05%, n = 39) compared to those bereaved who did not (16.92%, n = 11; OR = 3.41, 95% CI: 1.59, 7.36). CG was associated with significantly greater PTSD severity, functional impairment, trauma-related guilt, and lifetime suicide attempts. Complicated grief was prevalent and associated with adverse psychosocial outcomes in veterans and service members with combat-related PTSD. Clinicians working with this population should inquire about bereavement, including loss of a FSM, and screen for CG. Additional research examining CG in this population is needed.

Complicated Grief Among Military Service Members and Veterans Who Served After September 11, 2001

Minimal research is available on the prevalence and impact of complicated grief (CG) in military service members and veterans, despite high reported rates of loss in this population. The present study aimed to examine prevalence rates of CG in a sample of treatment-seeking military service and members and veterans who served after September 11, 2001. Additionally, the study aimed to examine characteristics associated with CG as well as the association between CG and quality of life. In a sample of 622 military service members and veterans who served after September 11, 2001, 502 reported a significant loss (80.7%). Usable data were available for a total of 468 participants. Of these 468 participants, 30.3% (n = 142) met diagnostic criteria for CG, as defined by a score of 30 or more on the Inventory of Complicated Grief (ICG; Prigerson et al., 1995). We conducted a series of t tests and chi-square tests to examine the differences between individuals who met criteria for CG and those who did not. The presence of CG was associated with worse PTSD, d = 0.68, p < .001; depression, d = -1.10, p < .001; anxiety, d = -1.02, p < .001; stress, d = 0.99, p < .001; and quality of life, d = 0.76, p < .001. Multiple regression analyses examined the independent impact of CG on quality of life. Complicated grief was associated with poorer quality of life above and beyond PTSD, β = -.12, p = .017. In addition, in a separate regression, CG was associated with poorer quality of life above and beyond depression, β = -.13, p < .001. Overall, our findings highlight the impact of CG on this population, and have implications for assessment and treatment.

Treating Veterans and Military Families: Evidence Based Practices and Training Needs Among Community Clinicians

Little is known about the capacity of community providers to provide military informed evidence based services for posttraumatic stress disorder (PTSD). We conducted a regional, web-based survey of 352 community mental health care providers that sought to identify clinical practices, training needs, and predictors of evidence based treatment (EBT) use for PTSD. Overall, 49 % of providers indicated they seldom or never use a validated PTSD screening instrument. Familiarity with EBTs, specifically prolonged exposure (PE; χ²(4) = 14.68, p < .01) and cognitive processing therapy (CPT; χ²(4) = 4.55, p < .05), differed by provider type. Of providers who received training in PE or CPT (N = 121), 75 % reported using treatment in their practice, which was associated with having received clinical supervision (χ² (1) = 20.16, p < .001). Widely disseminated trainings in empirically supported PTSD assessment and treatment, and implementation of case supervision in community settings are needed.

The Big Thompson Flood

The Big Thompson Flood of 1976 yielded a known death toll of 139. The temporary morgue set up was successful in personally identifying all of the bodies. This effort was made possible by the fortuitous presence of the three scientists necessary for such an operation, to wit, the forensic pathologist, a forensic odontologist, and a forensic anthropologist. An outcome of the morgue effort was the establishment of the Center for Human Identification. Many law enforcement agencies and county emergency disaster offices in the country contacted the morgue directors for advice on how to cope with similar disasters. It would appear that there are no state or federal statutes or planning in the area of body identification. One function of the Center at CSU is to advise on just how a total effort in body identification can be effected.

The Influence of Anxiety Sensitivity on a Wish to Die in Complicated Grief

Individuals with complicated grief are at elevated risk of suicidal thoughts. Anxiety sensitivity has recently emerged as a risk factor of suicide. This study aimed to investigate a possible association between anxiety sensitivity and a wish to die in individuals with complicated grief. Participants were evaluated for participation in a treatment study and completed an ancillary questionnaire-based study. Participants were 51 bereaved adults evaluated (age: mean, 54 [SD, 13.6] years; 78% [n = 40] women). Logistic regression was used to examine the relationship between anxiety sensitivity and a wish to die. Overall, anxiety sensitivity was associated with a wish to die at the level of a medium effect size, although it did not reach statistical significance. The anxiety sensitivity social concerns subscale was significantly associated with a wish to die. These findings add to a growing literature implicating anxiety sensitivity in reporting a wish to die.

Post-traumatic toxic shock syndrome

Toxic shock syndrome (TSS) associated with Staphylococcus occurs most commonly in menstruating women, although cases in both sexes have been reported. This report describes a severe case of TSS after a relatively minor stab wound. The male patient exhibited all of the major characteristics of this multisystem disease including anuric renal failure. TSS, which can be fatal, may result from surgical and traumatic wound infections and demands prompt recognition and treatment.

Intensive outpatient treatment of PTSD and complicated grief in suicide-bereaved military widows

We report on a novel 2-week intensive outpatient treatment program (IOP) for 24 widows bereaved by the suicide death of their veteran spouse. We targeted symptoms of posttraumatic stress disorder (PTSD) and complicated grief (CG) concurrently in three separate cohorts. All patients either witnessed the death or discovered the body of their deceased partner, who was a veteran of the United States military. PTSD, CG, and depression symptom severity decreased significantly from pre- to post-treatment, with effect sizes of 0.85, 1.21, and 1.35, respectively. These outcomes provide preliminary support for an IOP to treat co-occurring PTSD and CG among widowed survivors of veteran suicide.

Combat-Related Posttraumatic Stress Disorder and Comorbid Major Depression in U.S. Veterans: The Role of Deployment Cycle Adversity and Social Support

Posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) commonly co-occur in combat veterans, and this comorbidity has been associated with higher levels of distress and more social and economic costs compared to one disorder alone. In a secondary analysis of a multisite randomized controlled trial of a sample of veterans with combat-related PTSD, we examined the associations among pre-, peri-, and postdeployment adversity, social support, and clinician-diagnosed comorbid MDD. Participants completed the Deployment Risk and Resilience Inventory and the Beck Depression Inventory-II as well as structured clinical interviews for diagnostic status. Among 223 U.S. veterans of the military operations in Iraq and Afghanistan (86.9% male) with primary combat-related PTSD, 69.5% had current comorbid MDD. After adjustment for sex, a linear regression model indicated that more concerns about family disruptions during deployment, f² = 0.065; more harassment during deployment, f² = 0.020; and lower ratings of postdeployment social support, f² = 0.154, were associated with more severe self-reported depression symptoms. Interventions that enhance social support as well as societal efforts to foster successful postdeployment reintegration are critical for reducing the mental health burden associated with this highly prevalent comorbidity in veterans with combat-related PTSD.

Five-factor model in bereaved adults with and without complicated grief

Knowledge about what psychological characteristics underlie complicated grief (CG) is limited. The current study examined the five-factor personality traits in 81 bereaved adults with (n = 51) and without (n = 30) CG. A trained doctoral-level clinician evaluated participants using a structured, diagnostic psychiatric interview, and they completed self-report measures of grief and personality. A multiple regression model indicated that higher levels of neuroticism were associated with greater CG symptom severity, implicating neuroticism in the development of CG. Future prospective studies confirming it as a risk factor for the development of CG are warranted.

Pre-treatment amygdala activation and habituation predict symptom change in post-traumatic stress disorder

Trauma-focused psychotherapy approaches are the first-line treatment option for post-traumatic stress disorder (PTSD); however, up to a third of patients remain symptomatic even after completion of the treatment. Predicting which patients will respond to a given treatment option would support personalized treatments and improve the efficiency of healthcare systems. Although previous neuroimaging studies have examined possible pre-treatment predictors of response to treatment, the findings have been somewhat inconsistent, and no other study has examined habituation to stimuli as a predictor. In this study, 16 treatment-seeking adults (MAge = 43.63, n = 10 women) with a primary diagnosis of PTSD passively viewed pictures of emotional facial expressions during functional magnetic resonance imaging (fMRI). After scanning, participants rated facial expressions on both valence and arousal. Participants then completed eight weekly sessions of prolonged exposure (PE) therapy. PTSD symptom severity was measured before and after treatment. Overall, participants showed symptomatic improvement with PE. Consistent with hypotheses, lesser activation in the amygdala and greater activation in the ventromedial prefrontal cortex during the presentation of fearful vs. happy facial expressions, as well as a greater decline in amygdala activation across blocks of fearful facial expressions at baseline, were associated with greater reduction of PTSD symptoms. Given that the repeated presentation of emotional material underlies PE, changes in brain responses with repeated stimulus presentations warrant further studies as potential predictors of response to exposure therapies.

A methodology for near-optimal computational superimposition of two-dimensional digital facial photographs and three-dimensional cranial surface meshes

The authors present a methodology for human identification based on digital superimposition techniques. This methodology computes a fast, near optimal fit between a three-dimensional skull surface mesh and a two-dimensional digitized facial photograph. Since this is done digitally, (1) the photograph can be enhanced to reduce or eliminate motion blur, overexposure or underexposure, and out-of-focus distortions; (2) previous problems with skull/photograph scaling and alignment are minimized or eliminated; and (3) the photograph and skull can be numerically correlated. Two of several test cases produced from an implementation of this methodology are also presented.