Posttraumatic stress disorder in the World Mental Health Surveys

Effect of smartphone app on post-traumatic stress disorder in COVID-19 convalescent patients: A protocol for systematic review and meta-analysis

BACKGROUND

The outbreak of Coronavirus Disease 2019 (COVID-19) seriously affects humans' health worldwide physically and mentally. Studies revealed that the prevalence of post-traumatic stress disorder (PTSD) increased under this condition. PTSD can change the structure of patients' central nervous system, and increase the risk of anxiety or depression, thus greatly affecting the quality of patients' life and their families. PTSD is preventable, and the effects of early prevention are better. Non-drug intervention can prevent or reduce the psychological sequelae after hospitalization, help patients understand the experience during hospitalization, and be beneficial to their psychological rehabilitation. Whether smartphone app based intervention can be an alternative therapy for PTSD in terms of COVID-19 convalescent patients is still controversial. Therefore, we conducted a meta-analysis and systematic review to evaluate the effects of smartphone app based intervention on PTSD in COVID-19 convalescent patients, so as to provide some guidance for clinical application.

METHODS

The literatures that are related to the smartphone app based intervention and PTSD in COVID-19 convalescent patients from inception to February 2021 will be searched. The following databases are our focused areas: ClinicalTrials.gov, Cochrane Central Register of Controlled Trials repositories, PubMed, EmBase, and Web of Science databases. According to the inclusion and exclusion criteria, 2 investigators would independently screen the literature extract data and evaluate the risk of bias in the included studies. Meta-analysis was performed with RevMan5.3 software.

RESULTS

The results of this meta-analysis will be submitted to a peer-reviewed journal for publication.

CONCLUSION

The conclusion of our study could provide evidence for the judgment of whether smartphone app based intervention is an effective intervention on PTSD in COVID-19 convalescent patients.

PROSPERO REGISTRATION NUMBER

CRD42021240340.

Is lower limb salvage worthwhile after severe open tibial fractures in a developing country? An analysis of surgical outcomes, quality of life and cost implications

INTRODUCTION

Open tibial fractures are rare and difficult-to-treat injuries because of the involvement of bony, skin and neuromuscular injury along with co-morbidities. Often, during the management of very severe cases these injuries, the question arises, should we amputate or salvage the limb? This question has been explored previously in civilian and military contexts in the US and UK but remains unstudied in the alternative sociocultural and economic context of the developing world.

METHODS

We studied 78 adult patients with severe open tibial fracture that presented to our institution, a Level 1 trauma center in India, from February 2018 to June 2019. 20 patients underwent above-knee amputation (AKA), 16 underwent below-knee amputation (BKA), and 42 underwent limb salvage. We assessed injury severity using [our institution's] Open Injury Severity Score (GHOISS), which has separate sub-scores for bony injury, skin injury, neuromuscular injury and co-morbidities, and patients were only included with GHOISS > 13. We assessed functional outcome measures as well as economic costs as primary cost levied by our institution and other secondary costs.

RESULTS

Salvage (LEFS: mean=51, SF-12 PCS: mean=48, SF-12 MCS: mean=49) provided better outcomes to BKA (LEFS: mean=39, p=0.005, SF-12 PCS: mean=40, p=0.003, SF-12 MCS: mean=43, p=0.052) and AKA (LEFS: mean=31, p<0.001, SF-12 PCS: mean=34, p<0.001, SF-12 MCS: mean=43, p=0.043). Primary costs were higher for limb salvage (index: mean=$3100, total: mean=$4400) than both BKA (index: mean=$2500, p=0.012, total: mean=$2600, p<0.001) and AKA (index: mean=$2800, p=0.020, total: mean=$3200, p<0.001). Secondary costs were higher for limb salvage than both BKA and AKA (p<0.001). Patients who underwent salvage were more likely to return to work at 36 months post-injury compared to below-knee amputees (adjusted OR=0.11, p=0.010).

CONCLUSIONS

Limb salvage results in better functional outcomes compared with amputation at a higher upfront cost but a likely lower lifetime cost. Unlike other literature on the topic, amputation carries a heavy mental and physical toll in India, likely due to sociocultural differences and stigma. Amputation is a difficult decision for patients to accept and results in poorer outcomes; therefore, we believe that limbs should be aggressively salvaged in our developing country.

STUDY DESIGN

Therapeutic Level II Prospective Cohort Study.

Trauma, PTSD, and complex PTSD in the Republic of Ireland: prevalence, service use, comorbidity, and risk factors

PURPOSE

This study represents the first assessment of the prevalence of trauma exposure, and Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD), ever conducted in the general population of the Republic of Ireland. Additionally, prevalence of past-year mental health service use, comorbidity with major depression and generalized anxiety, and risk factors associated with PTSD and CPTSD were assessed.

METHODS

A nationally representative sample of non-institutionalized Irish adults (N = 1020) completed self-report measures of trauma history, trauma-related psychopathology, mental health service use, and concurrent mental health problems.

RESULTS

Lifetime exposure to one or more traumatic events was 82.3%, and 67.8% reported experiencing two or more traumatic events. Males and females significantly differed in their frequency of exposure to eight of 16 traumatic events. The past-month prevalence for PTSD was 5.0% (95% CI 3.7%, 6.3%) and 7.7% (95% CI 6.1%, 9.4%) for CPTSD. Of those who screened positive for PTSD or CPTSD, 48.6% accessed mental health care in the past year. Comorbidity with major depression and generalized anxiety was high, especially among those with CPTSD. Several unique and shared risk factors for PTSD and CPTSD were identified.

CONCLUSION

Approximately one-in-eight Irish adults met diagnostic requirements for PTSD or CPTSD, and comorbidity with other disorders was high. History of interpersonal trauma and exposure to multiple types of trauma in different developmental periods were associated with CPTSD. Many individuals did not access mental health care revealing a substantial mental health treatment gap.

Stimulating research on childhood adversities, borderline personality disorder, and complex post-traumatic stress disorder

Traumatic events of a long-lasting invasive, primarily interpersonal nature (e.g., childhood abuse, intimate partner violence) can have wide-ranging consequences across various life domains. This involves an increased risk of developing mental disorders, such as (complex) post-traumatic stress (PTSD, CPTSD) and borderline personality disorder (BPD). Both within and outside of these diagnostic boundaries, complex trauma has been associated with emotional dysregulation, dissociation, distrust, interpersonal problems, and maladaptive coping behaviours, such as self-harm and suicidal behaviour. Knowledge on the devastating consequences of complex trauma has steadily increased. One of the remaining research questions is why some people develop certain psychopathological symptoms or disorders after complex trauma while others do not. Moreover, more research is needed to better understand how disorders such as BPD and CPTSD can be differentiated, both descriptively and empirically. This special issue brings together a collection of review articles and original research articles on this topic to stimulate further research in the field. Findings enhance the understanding of long-term consequences of childhood adversities and highlight important psychopathological mechanisms that may underlie an increased risk to develop certain mental disorders.

Demanding and effective: participants' experiences of internet-delivered prolonged exposure provided within two months after exposure to trauma

Background: The use of remotely delivered early intervention after trauma may prevent and/or reduce symptoms of post-traumatic stress. Our research group evaluated a novel three-week therapist-guided internet-delivered intervention based on prolonged exposure (Condensed Internet-Delivered Prolonged Exposure; CIPE) in a pilot trial. The results indicated that the intervention was feasible, acceptable and reduced symptoms of post-traumatic stress at post-intervention compared to a waiting-list condition. Exposure to traumatic memories can be emotionally demanding and there is a need for detailed investigation of participants' experiences in receiving this type of intervention remotely. Objective: Investigate participants' experiences of receiving CIPE early after trauma. Method: In this study, qualitative thematic analysis was used and semi-structured interviews with 11 participants six months after intervention completion were conducted. All interviews were audio-recorded and transcribed verbatim. Results: One overarching theme labelled as 'demanding and effective' was identified. Participants expressed that treatment effects could only be achieved by putting in a lot of effort and by being emotionally close to the trauma memory during exposure exercises. Participants reported CIPE to be a highly credible- and educative intervention that motivated them to fully engage in exposure exercises. The most distressing parts of the intervention was perceived as tolerable and important to do to heal psychologically after trauma. For many participants, the possibility to engage in the intervention whenever and where it suited them was helpful, although some participants described it as challenging to find a balance between their own responsibility and when to expect therapist support. The internet-based format was perceived as a safe forum for self-disclosure that helped some participants overcome avoidance due to shame during imaginal exposure. Conclusion: CIPE was considered demanding, yet effective by the interviewed participants. The most distressing parts of the intervention was perceived to be the most important and were tolerable and feasible to provide online.

Manipulation of REM sleep via orexin and GABAA receptor modulators differentially affects fear extinction in mice: effect of stable versus disrupted circadian rhythm

Sleep disruption, and especially REM sleep disruption, is associated with fear inhibition impairment in animals and humans. The REM sleep-fear inhibition relationship raises concern for individuals with PTSD, whose sleep disturbance is commonly treated with hypnotics which disrupt and/or decrease REM sleep, such as benzodiazepines or 'Z-drugs'. Here, we examined the effects of the Z-drug zolpidem, a GABAA receptor positive allosteric modulator, as well as suvorexant, an orexin receptor antagonist (hypnotics which decrease and increase REM sleep, respectively) in the context of circadian disruption in murine models of fear inhibition-related processes (i.e., fear extinction and safety learning). Adult male C57Bl/6J mice completed fear and safety conditioning before undergoing shifts in the light-dark (LD) cycle or maintaining a consistent LD schedule. Fear extinction and recall of conditioned safety were thereafter tested daily. Immediately prior to onset of the light phase between testing sessions, mice were treated with zolpidem, suvorexant, or vehicle (methylcellulose). EEG/EMG analysis showed temporal distribution of REM sleep was misaligned during LD cycle-shifts, while REM sleep duration was preserved. Suvorexant increased REM sleep and improved fear extinction rate, relative to zolpidem, which decreased REM sleep. Survival analysis demonstrated LD shifted mice treated with suvorexant were faster to achieve complete extinction than vehicle and zolpidem-treated mice in the LD shifted condition. By contrast, retention of conditioned safety memory was not influenced by either treatment. This study thus provides preclinical evidence for the potential clinical utility of hypnotics which increase REM sleep for fear extinction after PTSD-relevant sleep disturbance.

Dopamine, endocannabinoids and their interaction in fear extinction and negative affect in PTSD

There currently exist few frameworks for common neurobiology between reexperiencing and negative cognitions and mood symptoms of PTSD. Adopting a dopaminergic framework for PTSD unites many aspects of unique symptom clusters, and this approach also links PTSD symptomology to common comorbidities with a common neurobiological deficiency. Here we review the dopamine literature and incorporate it with a growing field of research that describes both the contribution of endocannabinoids to fear extinction and PTSD, as well as the interactions between dopaminergic and endocannabinoid systems underlying this disorder. Based on current evidence, we outline an early, preliminary model that links re-experiencing and negative cognitions and mood in PTSD by invoking the interaction between endocannabinoid and dopaminergic signalling in the brain. These interactions between PTSD, dopamine and endocannabinoids may have implications for future therapies for treatment-resistant and comorbid PTSD patients.

Prevalence and predictors of secondary trauma in the legal profession: a systematic review

There has been increased scrutiny of occupations that less obviously experience adverse impacts from indirect exposure to trauma. In legal professions, repeated exposure to clients who have experienced trauma comprises a significant part in the role of lawyers, attorneys, solicitors and judges. The current review aimed to explore the prevalence and risk factors of secondary trauma reported by such legal professionals. A systematic search using seven psychological and legal databases elicited 10 articles for review. Quality appraisal revealed several methodological frailties in the reviewed articles. Thus, the findings should be interpreted with caution. Results indicated comparatively high prevalence of secondary trauma in legal professionals, and highlighted predictors and correlates of secondary trauma (gender, work experience, personal trauma and level of exposure). The review emphasised significant variability between the studies making systematic comparisons challenging, as well as the need for further conceptually consistent and scientifically robust studies.

Psychiatric Co-Morbidities in Post-Traumatic Stress Disorder: Detailed Findings from the Adult Psychiatric Morbidity Survey in the English Population

Post Traumatic Stress Disorder (PTSD) is a condition which causes great sufferance to the individuals affected. The occurrence of comorbidities in PTSD is a frequent event with a negative impact on outcome. This study investigated the frequency of PTSD in relation to comorbidities by analyzing the results of the 2007 'Adult Psychiatric Morbidity Survey' in the English population, which included data on comorbidities. A population study conducted in the United Kingdom, this survey investigated the frequency of PTSD in the community and the relationship to comorbidities by adopting a random design to minimize selection bias, stratified by region and socioeconomic characteristics, and weighted according to design and non-response. The survey interviewed 7403 adults living in private households. Socio-demographic characteristics and psychiatric morbidity were systematically assessed. Results indicated that PTSD prevalence was 2.9%, with an excess in women (3.3%) compared to men (2.4%) as reported by the 2007 survey. Comorbidity was a very frequent occurrence in PTSD reaching 78.5% in affected cases. Major depression was the commonest condition and its frequency increased with symptoms severity up to 54%. Among anxiety disorders, social phobia was the most frequent, followed by generalized anxiety disorder, obsessive-compulsive disorder, agoraphobia and panic disorder. Substance use disorders were also common. The presence of psychotic symptoms was particularly significant with over 30% prevalence in PTSD. These results indicate that attention needs to be devoted to the presence of comorbidities. In view of the impact of comorbidities on PTSD severity, chronicity and functional impairment, early detection and treatment are likely to improve outcome.

The environmental enrichment model revisited: A translatable paradigm to study the stress of our modern lifestyle

Mounting evidence shows that physical activity, social interaction and sensorimotor stimulation provided by environmental enrichment (EE) exert several neurobehavioural effects traditionally interpreted as enhancements relative to standard housing (SH) conditions. However, this evidence rather indicates that SH induces many deficits, which could be ameliorated by exposing animals to an environment vaguely mimicking some features of their wild habitat. Rearing rodents in social isolation (SI) can aggravate such deficits, which can be restored by SH or EE. It is not surprising, therefore, that most preclinical stress models have included severe and unnatural stressors to produce a stress response prominent enough to be distinguishable from SH or SI-frequently used as control groups. Although current stress models induce a stress-related phenotype, they may fail to represent the stress of our urban lifestyle characterized by SI, poor housing and working environments, sedentarism, obesity and limited access to recreational activities and exercise. In the following review, we discuss the stress of living in urban areas and how exposures to and performing activities in green environments are stress relievers. Based on the commonalities between human and animal EE, we discuss how models of housing conditions (e.g., SI-SH-EE) could be adapted to study the stress of our modern lifestyle. The housing conditions model might be easy to implement and replicate leading to more translational results. It may also contribute to accomplishing some ethical commitments by promoting the refinement of procedures to model stress, diminishing animal suffering, enhancing animal welfare and eventually reducing the number of experimental animals needed.

Adaptation of the barriers to help-seeking for trauma (BHS-TR) scale: a cross-cultural cognitive interview study with female intimate partner violence survivors in Iceland

Background

Even though traumatization is linked to substantially reduced health-related quality of life, help-seeking and service utilization among trauma survivors are very low. To date, there has not been available in Iceland a culturally attuned, self-reported measure on help-seeking barriers after trauma. This study aimed to translate and cross-culturally adapt the English version of Barriers to Help-Seeking for Trauma (BHS-TR) scale into the Icelandic language and context.

Methods

The BHS-TR was culturally adapted following well-established and rigorous guidelines, including forward-backward translation, expert committee review, and pretesting through cognitive interviews. Two rounds of interviews with 17 female survivors of intimate partner violence were conducted using a think-aloud technique and verbal probing. Data were analyzed using qualitative content analysis, a combination of deductive and inductive approaches.

Results

Issues with the BHS-TR that were uncovered in the study were classified into four categories related to general design, translation, cultural aspects, and post-trauma context. The trauma-specific issues emerged as a new category identified in this study and included concepts specific to trauma experiences. Therefore, modifications were of great importance—resulting in the scale becoming more trauma-informed. Revisions made to address identified issues improved the scale, and the process led to an Icelandic version, which appears to be semantically and conceptually equivalent to the original version; additionally, the results provided evidence of content validity.

Conclusions

As a cognitive interview study, it adds to the growing cognitive interviewing methodology literature. Furthermore, the results provide essential insights into the self-report response process of trauma survivors, highlighting the significance of making health-related research instruments trauma-informed.

Analysis of Effectiveness of Individual and Group Trauma-Focused Interventions for Female Victims of Intimate Partner Violence

Group psychological programs for intimate partner violence (IPV) survivors would seem particularly useful since they contribute to interrupting women’s isolation and have cost-effectiveness advantage. This study aims to analyze whether the effectiveness of group interventions for female survivors of IPV is equivalent to that of the individual format. A cognitive-behavioral trauma-focused intervention program was applied in eight weekly sessions in Madrid (Spain) to IPV female survivors with significant posttraumatic symptoms that were randomly assigned to the individual (n = 25) or group (n = 28) intervention format. Measures of posttraumatic stress (Severity of Posttraumatic Stress Disorder Symptoms Scale), depression (Beck Depression Inventory), anxiety (Beck Anxiety Inventory), self-esteem (Rosenberg’s Scale) and social support were analyzed at pre-treatment, post-treatment, and 1-, 3-, 6- and 12-months follow-ups. A total of 28.3% of women dropped out, without significant format differences. Intervention (both formats) had significant improvements with large effect sizes in posttraumatic stress (η²_p = 0.56), depression (η²_p = 0.45), anxiety (η²_p = 0.41) and self-esteem (η²_p = 0.26) that maintained in follow-ups (p < 0.001), without significant differences between formats. Both intervention formats had different evolutions for depression and anxiety (p < 0.05), with better effects in the individual format at the first post-test measurements, but the differences tended to disappear over time. Intervention was effective in improving social support, with no significant differences between formats. All in all, both formats showed similar effectiveness. The group format could be an alternative when applying psychological interventions for female IPV survivors, since it would maintain good cost-effectiveness balance, mainly in the long-term.

The relationship between early administration of morphine or nitrous oxide gas and PTSD symptom development

BACKGROUND

Posttraumatic Stress Disorder (PTSD) is a debilitating mental health disorder. Certain drugs, such as morphine and nitrous oxide gas (N₂O), are administered to individuals who just experienced a traumatic event (e.g., soldiers, injured civilians). It is therefore crucial to understand if they incidentally affect PTSD symptom development. Furthermore, such observations could pave the way for the development of pharmacological prevention strategies of PTSD.

METHODS

In this prospective population-based cohort study (n = 2,070), we examined the relationship between morphine or N₂O administration during childbirth, and subsequent childbirth-related PTSD symptoms at eight weeks postpartum. Pain during labour, prior PTSD symptoms, and birth medical severity were included as covariates in the analyses.

RESULTS

In women who developed PTSD symptoms, N₂O administration during childbirth predicted reduced PTSD symptom severity (p < .001, small to medium effect size). A similar tendency was observed for morphine, but was not significant (p < .065, null to small effect size). Both drugs predicted increased PTSD symptoms when combined with severe pain during labour.

LIMITATIONS

This study was observational, thus drug administration was not randomised. Additionally, PTSD symptoms were self-reported.

CONCLUSIONS

Peritraumatic N₂O administration may reduce subsequent PTSD symptom severity and thus be a potential avenue for PTSD secondary prevention. This might also be the case for morphine. However, the role of severe peritraumatic pain in context of drug administration deserves further investigation.

Traumatic events and posttraumatic stress disorder in individuals with severe mental illness in a non-western setting: Data from rural Ethiopia

Traumatic events and ensuing stress are not widely studied in individuals with severe mental illness (SMI) despite their increased vulnerability to both. Far less is known about traumatic events and posttrauma reactions in people with SMI in low-resourced settings.

OBJECTIVE

To address this gap in knowledge, our study focused on trauma and its effects for individuals with SMI and their caregivers in rural Ethiopia. Study aims were to identify events that were considered traumatic by stakeholders; characterize the mental health effects of such events; and discern events and posttrauma symptoms most relevant for SMI.

METHOD

Qualitative interviews were gathered from 48 participants in Ethiopia who included individuals with SMI, their caregivers, health care providers, and community and religious leaders.

RESULTS

Based on a combined emic and etic approach, major traumatic events included those commonly experienced in rural Ethiopia (e.g., lost property, forced marriage) and endorsed by individuals with SMI (e.g., restraining or chaining, SMI illness in a low-resourced setting). In addition, traumatic events were identified consistent with Western medical criteria (e.g., physical assault, sexual assault). Posttrauma symptoms that were commonly reported included emotions like anger and sadness; thinking too much; crying; and somatic (e.g., burning sensation) and physiological (e.g., shortness of breath) symptoms. As for symptoms consistent with the Diagnostic and Statistical Manual, we found the presence of all four symptom clusters.

CONCLUSIONS

Overall, results point to the common occurrence of traumatic events and trauma-linked symptoms for individuals with SMI and their caregivers, including as a result of SMI. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Experiences with traumatic events, consequences and care among people with visual impairment and post-traumatic stress disorder: a qualitative study from The Netherlands

OBJECTIVE

Having a visual impairment is known to be associated with an increased vulnerability to (potentially) traumatic events. Little is known about how people with visual impairment experience and process such events. This qualitative study aimed to provide more insight into experiences with traumatic events, consequences of traumatic events and post-traumatic stress disorder (PTSD)-related care among people with visual impairment and PTSD.

METHODS

Eighteen persons with visual impairment and (a history of) PTSD were interviewed. Among them were 14 women and 4 men aged between 23 and 66 years. Recruitment of participants was done through health professionals from two low-vision service centres and a patient association for people with eye diseases and visual impairment in The Netherlands. Interviews focused on experiences with (1) traumatic events, (2) consequences of traumatic events and (3) PTSD-related care. Thematic content analysis of interview data was performed using ATLAS.ti. The COnsolidated criteria for REporting Qualitative research (COREQ) checklist was used to check for completeness and transparency of the study. Data were collected between 2018 and 2020.

RESULTS

The most commonly reported traumatic events were sexual and physical abuse. Many participants experienced that their impairment had negatively affected their acceptance by others, independence and self-esteem, increasing their vulnerability for traumatic events. Additionally, having a visual impairment negatively impacted participants' ability to respond to situations and aggravated post-traumatic stress reactions. Existing treatments seem suitable for people with visual impairment when accommodated to the impairment.

CONCLUSIONS

Having a visual impairment may affect traumatic events and post-traumatic stress reactions, particularly by contributing to low self-esteem, problems in social interactions and a lack of visual information. Insights from this study provide starting points for adapting pretraumatic and post-traumatic care to the needs of people with visual impairment.

Discontinuation of medications classified as reuptake inhibitors affects treatment response of MDMA-assisted psychotherapy

RATIONALE

MDMA-assisted psychotherapy is under investigation as a novel treatment for posttraumatic stress disorder (PTSD). The primary mechanism of action of MDMA involves the same reuptake transporters targeted by antidepressant medications commonly prescribed for PTSD.

OBJECTIVES

Data were pooled from four phase 2 trials of MDMA-assisted psychotherapy. To explore the effect of tapering antidepressant medications, participants who had been randomized to receive active doses of MDMA (75-125 mg) were divided into two groups (taper group (n = 16) or non-taper group (n = 34)).

METHODS

Between-group comparisons were made for PTSD and depression symptom severity at the baseline and the primary endpoint, and for peak vital signs across two MDMA sessions.

RESULTS

Demographics, baseline PTSD, and depression severity were similar between the taper and non-taper groups. At the primary endpoint, the non-taper group (mean = 45.7, SD = 27.17) had a significantly (p = 0.009) lower CAPS-IV total scores compared to the taper group (mean = 70.3, SD = 33.60). More participants in the non-taper group (63.6%) no longer met PTSD criteria at the primary endpoint than those in the taper group (25.0%). The non-taper group (mean = 12.7, SD = 10.17) had lower depression symptom severity scores (p = 0.010) compared to the taper group (mean = 22.6, SD = 16.69). There were significant differences between groups in peak systolic blood pressure (p = 0.043) and diastolic blood pressure (p = 0.032).

CONCLUSIONS

Recent exposure to antidepressant drugs that target reuptake transporters may reduce treatment response to MDMA-assisted psychotherapy.

Diurnal Rhythm Robustness in Individuals With PTSD and Insomnia and The Association With Sleep

Posttraumatic stress disorder (PTSD) and insomnia are characterized by sleep disturbances and daytime functional impairments. Actigraphy metrics can quantify diurnal rhythms via interdaily stability, intradaily variability, relative amplitude, and sleep regularity. Here, we (a) compared diurnal rhythms in PTSD, insomnia, and healthy control samples using linear mixed modeling; (b) compared inter-individual variability of diurnal rhythms between groups using variance ratio tests; and (c) examined correlations between diurnal rhythms and sleep measures within the clinical samples. Participants (N = 98) wore wrist-activity monitors for one week and completed the Insomnia Severity Index and Pittsburgh Sleep Quality Index. Both clinical samples displayed significantly lower interdaily stability, relative amplitude, and sleep regularity compared with controls. Individuals with PTSD and insomnia did not differ on mean diurnal rhythm metrics. Both clinical samples showed more inter-individual variability in relative amplitude compared with controls, and the individuals with PTSD were distinguished from those with insomnia by greater inter-individual variability in interdaily stability and relative amplitude. Relative amplitude in the clinical samples was positively correlated with objective sleep efficiency and total sleep time. This is the first study to compare individuals with PTSD and insomnia on measures of diurnal rhythms, revealing those with PTSD and insomnia to have less robust and more variable diurnal rhythms compared with controls. Individuals with PTSD differed from those with insomnia in inter-individual variability of diurnal rest-activity stability and amplitude, highlighting this population as particularly heterogenous. Diurnal rhythm robustness might be considered an intervention target in insomnia and PTSD populations.

Prävalenz und Versorgung der Posttraumatischen Belastungsstörung in Deutschland: Eine bundesweite Auswertung von Krankenkassendaten aus den Jahren 2008 und 2017

Ziel der Studie Gewinnung von Daten zur Prävalenz sowie medizinischen und psychotherapeutischen Versorgung von Menschen mit PTBS in Deutschland.

Methodik Aus Sekundärdaten der BARMER wurde die Prävalenz von PTBS-Diagnosen (ICD-10: F43.1) sowie psychiatrischen Komorbiditäten, Psychotherapie und Pharmakotherapie für diese Versichertengruppe abgeleitet. Ergänzend wurden Prävalenztrends (2008 vs. 2017) berechnet.

Ergebnisse Im Jahr 2017 lag die PTBS-Diagnoseprävalenz bei 0,7 % (Frauen: 0,9 %; Männer: 0,4 %); gegenüber 0,3 % in 2008. 74,4 % aller Versicherten mit PTBS-Diagnose erhielten ambulante Psychotherapie, 43,6 % erhielten Antidepressiva (meistverordnet: Venlafaxin) und 14,4 % Antipsychotika (häufigste Substanz: Quetiapin).

Schlussfolgerung Im untersuchten Zeitraum hat sich die Diagnosehäufigkeit von PTBS mehr als verdoppelt. Sie liegt jedoch weiterhin unter der in epidemiologischen Studien ermittelten Prävalenz, was auf Potenzial für eine verbesserte diagnostische Erkennung von PTBS hindeutet.

Cannabis use and posttraumatic stress disorder comorbidity: Epidemiology, biology and the potential for novel treatment approaches

Cannabis use is increasing among some demographics in the United States and is tightly linked to anxiety, trauma, and stress reactivity at the epidemiological and biological level. Stress-coping motives are highly cited reasons for cannabis use. However, with increased cannabis use comes the increased susceptibility for cannabis use disorder (CUD). Indeed, CUD is highly comorbid with posttraumatic stress disorder (PTSD). Importantly, endogenous cannabinoid signaling systems play a key role in the regulation of stress reactivity and anxiety regulation, and preclinical data suggest deficiencies in this signaling system could contribute to the development of stress-related psychopathology. Furthermore, endocannabinoid deficiency states, either pre-existing or induced by trauma exposure, could provide explanatory insights into the high rates of comorbid cannabis use in patients with PTSD. Here we review clinical and preclinical literature related to the cannabis use-PTSD comorbidity, the role of endocannabinoids in the regulation of stress reactivity, and potential therapeutic implications of recent work in this area.

Suicide risk in people with post-traumatic stress disorder: A cohort study of 3.1 million people in Sweden

BACKGROUND

It is unclear whether post-traumatic stress disorder [PTSD] is associated with suicide risk in the general population, whether this differs by sex, or what the population impact of PTSD is for suicide.

METHODS

We constructed a nationwide cohort of all people living in Sweden, born 1973-1997, followed from their 14th birthday (or immigration, if later) until suicide, other death, emigration or 31 December 2016. We used Cox proportional hazards regression to estimate hazard ratios [HR], and calculated the population impact of PTSD on suicide. We included sensitivity analyses to explore effects of outcome and exposure definitions, and to account for potential competing risks.

RESULTS

Of 3,177,706 participants, 22,361 (0•7%) were diagnosed with PTSD, and 6,319 (0•2%) died by suicide over 49•2 million person-years. Compared with women and men without PTSD, suicide rates were 6•74 (95%CI: 5•61-8•09) and 3•96 (95%CI: 3•12-5•03) times higher in those with PTSD, respectively, after sociodemographic adjustment. Suicide rates remained elevated in women (HR: 2•61; 95%CI: 2•16-3•14) and men (HR: 1•67; 95%CI: 1•31-2•12) after adjustment for previous psychiatric conditions; attenuation was driven by previous non-fatal suicide attempts. Findings were insensitive to definitions or competing risks. If causal, 1•6% (95%CI: 1•2-2•1) of general population suicides could be attributed to PTSD, and up to 53.7% (95%CI: 46.1-60.2) in people with PTSD.

LIMITATIONS

Residual confounding remains possible due to depressive and anxiety disorders diagnosed in primary care but unrecorded in these registers.

CONCLUSIONS

Clinical guidelines for the management of people with PTSD should recognise increased suicide risks.

The efficacy of memantine in the treatment of civilian posttraumatic stress disorder: an open-label trial

Background: Currently, there is a paucity of pharmacological treatment options for posttraumatic stress disorder (PTSD), and the development of a novel pharmacotherapeutic approach has become a matter of great interest. Objective: We conducted a 12-week open-label clinical trial to examine the efficacy and safety of memantine, an N-methyl-D-aspartate receptor antagonist, in the treatment of civilian PTSD. Method: Thirteen adult patients with DSM-IV PTSD, all civilian women, were enrolled. They were monitored at an ambulatory care facility every week until 4 weeks and then every 4 weeks until 12 weeks. Memantine was added to each patient's current medication, with the initial dosage of 5 mg/day and then titrated. Concomitant medications were essentially kept unchanged during the trial. The primary outcome was PTSD diagnosis and severity assessed with the Posttraumatic Diagnostic Scale (PDS). Results: Of the 13 cases, one dropped out and two were discarded due to the protocol deviation, and the analysis was done for the remaining 10. Mean PDS total scores decreased from 32.3 ± 9.7 at baseline to 12.2 ± 7.9 at endpoint, which was statistically significant with a large effect (paired t-test: p = .002, d = 1.35); intrusion, avoidance, hyperarousal symptoms were all significantly improved from baseline to endpoint. Six patients no longer fulfilled the diagnostic criteria of PTSD at endpoint. Some adverse, but not serious, effects possibly related to memantine were observed, including sleep problems, sleepiness, sedation, weight change and hypotension. Conclusions: Memantine significantly reduced PTSD symptoms in civilian female PTSD patients and the drug was well tolerated. Future randomized controlled trials are necessary to verify the efficacy and safety of memantine in the treatment of PTSD.

Association of CRP genetic variation with symptomatology, cognitive function, and circulating proinflammatory markers in civilian women with PTSD

BACKGROUND

Posttraumatic stress disorder (PTSD) has been associated with increased inflammation. C-reactive protein (CRP) is a marker of systemic inflammation, and recently, single nucleotide polymorphisms (SNPs) in the CRP gene have been associated with increased blood CRP protein levels and illness severity in PTSD patients. However, the mechanism by which the CRP SNPs are involved in PTSD remains unclear. Here we investigated the association of CRP genetic variation with blood proinflammatory protein levels, symptomatology, and cognitive function, and further explored the moderating effect of childhood maltreatment history, in adult patients with PTSD.

METHODS

Fifty-seven Japanese civilian women with PTSD and 73 healthy control women were enrolled. Three SNPs in the CRP gene, namely rs2794520, rs1130864, and rs3093059, were genotyped, and analyses focused on rs2794520 (T/C). Serum levels of high-sensitivity CRP (hsCRP), high-sensitivity tumor necrosis factor-α (hsTNF-α), and interleukin-6 were measured. PTSD symptoms were evaluated by the Posttraumatic Diagnostic Scale. Cognitive function was assessed by the Repeatable Battery for the Assessment of Neuropsychological Status. Childhood maltreatment history was assessed by the Childhood Trauma Questionnaire.

RESULTS

Patients with the rs2794520 CC/CT genotype, compared to those with the TT genotype, showed significantly higher levels of hsCRP (p=0.009) and hsTNF-α (p=0.001), more severe PTSD symptoms (p=0.036), and poorer cognitive function (p=0.018). A two-way analysis of variance revealed a significant genotype-by-maltreatment interaction for more severe PTSD avoidance symptom (p=0.012).

LIMITATIONS

The relatively small sample size limited our findings.

CONCLUSIONS

These findings may provide an insight into the etiology of PTSD from the inflammatory perspective.

Burn severity and long-term psychosocial adjustment after burn injury: The mediating role of body image dissatisfaction

BACKGROUND

Persons with severe burns often develop long-term psychosocial difficulties such as posttraumatic stress disorder (PTSD) and depression. Significant appearance changes following burn injury (e.g., scarring and disfigurement) can lead to body image dissatisfaction (BID) that causes psychological problems. Using a two-wave longitudinal design, this study examined the association between burn severity and psychosocial adjustment after burns (symptoms of PTSD and depression), particularly through the mediating role of BID.

METHOD

Participants were 111 burn survivors of the 2015 Formosa Fun Coast Water Park explosion. The mean age was 24.23 years, and 62.2% were female. The average TBSA burned was 50.3%, and the mean length of stay (LOS) in hospital was 85.44 days. Data were collected two (Time 1, T1) and three years (Time 2, T2) after the 2015 explosion. A composite burn severity score (CBSS) was additionally created based on TBSA and LOS.

RESULTS

Three main findings emerged: (1) burn severity (TBSA, LOS, and CBSS) were significantly associated with T1 BID and T2 depressive symptoms, but not with T2 PTSD symptoms; (2) T1 BID significantly mediated the relationship between burn severity (TBSA and CBSS) and T2 PTSD symptoms, after controlling for T1 PTSD symptoms; and (3) T1 BID significantly mediated the relationship between burn severity (TBSA, LOS, and CBSS) and T2 depressive symptoms, after controlling for T1 depressive symptoms.

CONCLUSIONS

The current findings highlight the importance of BID in the development and maintenance of psychosocial maladjustment long after burn injury.

The double burden of treating traumatic stress in low-resource communities: experiences and perspectives of non-specialist health workers in South Africa

Considering the global trend towards the dissemination and implementation of trauma-focused treatments in the majority of the world, it is imperative to ascertain the contextual factors which affect the treatment of traumatic stress, especially in low- and middle-income countries characterised by ongoing adversity such as poverty and increased levels of trauma exposure. We explored the experiences of non-specialist health workers whose work involved providing trauma-focused services in low-resource communities in South Africa. Participants ( n = 18) worked at four non-governmental organisations in the Eastern Cape and Western Cape of South Africa. Semi-structured individual interviews were conducted and analysed using a phenomenologically informed thematic analysis. Two superordinate themes were identified, namely, adjusting to trauma-focused work and trauma in the social context. Five themes that made up the superordinate themes were Encountering Trauma Narratives, Support and Resilience, Going the Extra Mile, Helplessness, and Social Factors. The findings are not only in keeping with the psychological risks of trauma-focused work (e.g., vicarious traumatisation) but also highlighting the impact of the social context on the provision of trauma-focused work. Participants reported experiencing an added burden of helplessness due to social factors, such as poverty and high levels of trauma exposure, which affect the process of treating traumatic stress in low-resource settings. We discuss how these findings can contribute to efforts to implement trauma-focused services in low- and middle-income countries.

Predicting outcome of daycare cognitive behavioural therapy in a naturalistic sample of patients with PTSD: a machine learning approach

BACKGROUND

Identifying predictors for treatment outcome in patients with posttraumatic stress disorder (PTSD) is important in order to provide an effective treatment, but robust and replicated treatment outcome predictors are not available up to now.

OBJECTIVES

We investigated predictors of treatment outcome in a naturalistic sample of patients with PTSD admitted to an 8-week daycare cognitive behavioural therapy programme following a wide range of traumatic events.

METHOD

We used machine learning (linear and non-linear regressors and cross-validation) to predict outcome at discharge for 116 patients and sustained treatment effects 6 months after discharge for 52 patients who had a follow-up assessment. Predictions were based on a wide selection of demographic and clinical assessments including age, gender, comorbid psychiatric disorders, trauma history, posttraumatic symptoms, posttraumatic cognitions, depressive symptoms, general psychopathology and psychosocial functioning.

RESULTS

We found that demographic and clinical variables significantly, but only modestly predicted PTSD treatment outcome at discharge (r = 0.21, p = .021 for the best model) and follow-up (r = 0.31, p = .026). Among the included variables, more severe posttraumatic cognitions were negatively associated with treatment outcome. Early response in PTSD symptomatology (percentage change of symptom scores after 4 weeks of treatment) allowed more accurate predictions of outcome at discharge (r = 0.56, p < .001) and follow-up (r = 0.43, p = .001).

CONCLUSION

Our results underscore the importance of early treatment response for short- and long-term treatment success. Nevertheless, it remains an unresolved challenge to identify variables that can robustly predict outcome before the initiation of treatment.

Clinical Efficacy and Cost-Effectiveness of Imagery Rescripting Only Compared to Imagery Rescripting and Schema Therapy in Adult Patients With PTSD and Comorbid Cluster C Personality Disorder: Study Design of a Randomized Controlled Trial

Background: Posttraumatic stress disorder (PTSD) is a serious and relatively common mental disorder causing a high burden of suffering. Whereas evidence-based treatments are available, dropout and non-response rates remain high. PTSD and Cluster C personality disorders (avoidant, dependent or obsessive-compulsive personality disorder; CPD) are highly comorbid and there is evidence for suboptimal treatment effects in this subgroup of patients. An integrated PTSD and CPD treatment may be needed to increase treatment efficacy. However, no studies directly comparing the efficacy of regular PTSD treatment and treatment tailored to PTSD and comorbid CPD are available. Whether integrated treatment is more effective than treatment focused on PTSD alone is important, since (1) no evidence-based guideline for PTSD and comorbid CPD treatment exists, and (2) treatment approaches to CPD are costly and time consuming. Present study design describes a randomized controlled trial (RCT) directly comparing trauma focused treatment with integrated trauma focused and personality focused treatment. Methods: An RCT with two parallel groups design will be used to compare the clinical efficacy and cost-effectiveness of "standalone" imagery rescripting (n = 63) with integrated imagery rescripting and schema therapy (n = 63). This trial is part of a larger research project on PTSD and personality disorders. Predictors, mediators and outcome variables are measured at regular intervals over the course of 18 months. The main outcome is PTSD severity at 12 months. Additionally, machine-learning techniques will be used to predict treatment outcome using biopsychosocial variables. Discussion: This study protocol outlines the first RCT aimed at directly comparing the clinical efficacy and cost-effectiveness of imagery rescripting and integrated imagery rescripting and schema therapy for treatment seeking adult patients with PTSD and comorbid cluster C personality pathology. Additionally, biopsychosocial variables will be used to predict treatment outcome. As such, the trial adds to the development of an empirically informed and individualized treatment indication process. Clinical Trial registration: ClinicalTrials.gov, NCT03833531.

PTSD is associated with increased DNA methylation across regions of HLA-DPB1 and SPATC1L

Posttraumatic stress disorder (PTSD) is characterized by intrusive thoughts, avoidance, negative alterations in cognitions and mood, and arousal symptoms that adversely affect mental and physical health. Recent evidence links changes in DNA methylation of CpG cites to PTSD. Since clusters of proximal CpGs share similar methylation signatures, identification of PTSD-associated differentially methylated regions (DMRs) may elucidate the pathways defining differential risk and resilience of PTSD. Here we aimed to identify epigenetic differences associated with PTSD. DNA methylation data profiled from blood samples using the MethylationEPIC BeadChip were used to perform a DMR analysis in 187 PTSD cases and 367 trauma-exposed controls from the Grady Trauma Project (GTP). DMRs were assessed with R package bumphunter. We identified two regions that associate with PTSD after multiple test correction. These regions were in the gene body of HLA-DPB1 and in the promoter of SPATC1L. The DMR in HLA-DPB1 was associated with PTSD in an independent cohort. Both DMRs included CpGs whose methylation associated with nearby sequence variation (meQTL) and that associated with expression of their respective genes (eQTM). This study supports an emerging literature linking PTSD risk to genetic and epigenetic variation in the HLA region.

Is only one cognitive technique also effective? Results from a randomized controlled trial of two different versions of an internet-based cognitive behavioural intervention for post-traumatic stress disorder in Arabic-speaking countries

BACKGROUND

Internet-based cognitive-behavioural interventions seem to be effective for the treatment of posttraumatic stress disorder (PTSD) in Arabic-speaking countries in the MENA region. However, due to high prevalence rates of trauma-related mental disorders in this region, it is important to scale up existing Internet-based interventions in order to increase the number of clients.

OBJECTIVE

The aim of the study was to examine whether a brief Internet-based intervention with one cognitive technique (TF-short, 6 assignments) results in the same PTSD symptom change and lower dropouts compared to a longer intervention with two cognitive techniques (TF-reg, 10 assignments).

METHOD

A total of 224 Arab participants (67.4% female; M = 25.3 years old) with PTSD were randomly assigned to Internet-based CBT with either a TF-reg protocol (n = 110) or a TF-short protocol (n = 114). Symptoms of PTSD and secondary outcomes (anxiety, depression, somatic complaints, quality of life) were self-assessed online at baseline and post-treatment. Treatment-associated changes were estimated using multigroup latent difference score models.

RESULTS

The overall PTSD score assessed with the PDS decreased by about 15 points in both conditions. The between-group differences (TF-reg vs. TF-short) at post-assessment were non-significant, Δ = 0.29, p = .896, d = 0.02, 95% CI [-0.30, 0.34]. Like the primary outcome, all within-group changes for the secondary outcomes throughout the intervention were statistically significant and all between-group effects were non-significant. Overall, the dropout rates did not differ between the two conditions, χ2 (1/N = 175) = 0.83, p = .364.

CONCLUSIONS

The findings suggest that the shorter condition results in the same symptom change and dropout rate as the longer condition. This highlights the potential of shorter, more scalable Internet-based interventions in socially restricted and (post-)conflict societies.

CLINICALTRIALSGOV ID

NCT01508377.

Mental health in adult refugees from Syria resettled in Norway between 2015 and 2017: a nationwide, questionnaire-based, cross-sectional prevalence study

BACKGROUND

The number of forcibly displaced people globally has never been higher, with refugees from Syria constituting the largest displaced population worldwide. Many studies have documented elevated levels of mental health problems in refugee populations, though prevalence estimates of common mental disorders vary considerably between studies, explained both by methodological and contextual factors.

OBJECTIVE

Using questionnaire-based screening checklists to approximate the prevalence of and investigate risk factors for post-traumatic stress disorder (PTSD), anxiety and depression among adult refugees from Syria resettled in Norway and to compare estimates with a sister-study in Sweden.

METHOD

Cross-sectional survey of a randomly selected sample from the National Population Register in Norway of adult refugees from Syria who were granted residency rights in Norway between 2015 and 2017 (N_sample = 9,990; n_respondents = 902). Above-threshold scores on the Harvard Trauma Questionnaire (HTQ) and Hopkins Symptoms Checklist (HSCL-25) defined caseness for PTSD (HTQ>2.06); anxiety (HSCL_anxitey>1.75); and depression (HSCL_depression>1.80).

RESULTS

Weighted, checklist-positive prevalence estimates for PTSD, anxiety and depression were 29.7% (25.4%-34.4%), 30.1% (25.7%-34.9%), and 45.2% (40.6%-49.8%), respectively. Cumulative exposure to potentially traumatic experiences before or during flight was a clear risk factor for all outcomes, and female gender was a risk factor for anxiety and depression, though only in adjusted analyses. The choice of HTQ cut-off to define PTSD caseness (2.5 vs. 2.06) had a notable effect on prevalence estimates.

CONCLUSION

In line with prior evidence, the present study suggests adult refugees from Syria resettled in Norway have higher rates of anxiety and depression and markedly higher rates of PTSD compared to general, non-refugee populations, and that this is clearly linked to past traumatic experiences. Prevalence estimates were highly consistent with estimates from the sister-study in Sweden, which used almost identical methodology. Findings underline the importance of screening for and intervening on mental health problems in newly arrived refugees.

The validity and reliability of benevolent childhood experiences scale in Chinese community adults

BACKGROUND

Several studies have indicated that positive childhood experiences (PCEs) might have important protective effects on adulthood mental health. However, the instruments to assess PCEs are scarce.

OBJECTIVE

In this study, we assessed the validity and reliability of the Benevolent Childhood Experiences (BCEs) scale, a new instrument of PCEs, in a large sample of Chinese adults. Furthermore, we examined associations of PCEs with symptoms of posttraumatic stress disorder (PTSD) and depression, as well as, prosocial behaviours across different levels of trauma.

METHOD

Participants were 6929 adults (33% male; mean age 38.04 years, SD = 7.81, ranging from 18 to 81.) recruited from Jiangxi and Hunan provinces in China. Self-administrated questionnaires were used to measure PCEs, childhood trauma, lifetime trauma, PTSD, depression, and prosocial behaviours. Multiple linear regression models were conducted to examine the interdependent and interactive effects of PCEs, lifetime trauma, childhood trauma on symptoms of PTSD and depression and prosocial behaviours.

RESULTS

In the current sample, the Cronbach's α of the BCEs scale was 0.70. PCEs were not related to lifetime trauma, while modestly associated with childhood trauma, demonstrating excellent discriminant validity. PCEs were negatively correlated with severity of PTSD and depression, while positively correlated with prosocial behaviours, indicating good predictive validity. PCEs, lifetime trauma and childhood trauma were independently associated with severity of PTSD and depression and prosocial behaviours. Moreover, the interaction of PCEs and lifetime trauma negatively predicted severity of PTSD and depression, while the interaction of PCEs and childhood trauma negatively predicted prosocial behaviours. PCEs had a protective effect on PTSD and depression in high level of lifetime trauma, and showed a reduced positive effect on prosocial behaviours in high level of childhood trauma.

CONCLUSIONS

The Chinese BCEs scale is a reliable and valid instrument. PCEs can buffer adversity and foster positive outcomes in adulthood.

Reaching the Unreached: Bridging Islam and Science to Treat the Mental Wounds of War

Radical new paradigms are needed to equip non-professionals and leverage community faith-based infrastructure to address the individual and communal wounds of war- and conflict-related trauma. Muslims in war-torn regions like Somalia experience high rates of trauma and posttraumatic stress; yet, lack of providers, potential stigma, and lack of integration with one's faith are substantial barriers to care. In this pre-post feasibility clinical trial (NCT03761732), mosque leaders implemented a brief, group- and mosque-based intervention, Islamic Trauma Healing, targeting trauma-related psychopathology and community reconciliation for trauma survivors (N = 26) in Somaliland, Somalia. Leaders were trained in a brief 2-day training, with supervision provided remotely via WhatsApp. This six-session intervention combines empirically-supported trauma-focused psychotherapy and Islamic principles, focusing on wisdom from the lives of the Prophets and turning to Allah in dua about trauma. There were large, clinically meaningful effects for PTSD (g = 1.91), depression (g = 2.00), somatic symptoms (g = 2.73), and well-being (g = 1.77). Qualitative data from group members highlighted how well the program was aligned with their Islamic faith, built community, and need to expand the program. These results highlight the feasibility of this non-expert, easily up-scalable mental health approach in war-torn Muslim regions and refugee communities. This program has the potential to provide a low-cost, self-sustaining, Islam-based intervention addressing the psychological wounds of war consistent with the IOM's call to develop novel approaches to address unmet clinical needs. ClinicalTrials.gov Identifier: NCT03761732.

Comparison of cannabidiol to citalopram in targeting fear memory in female mice

Background

Cannabidiol (CBD) and selective serotonin reuptake inhibitors (SSRIs) are currently used to treat post-traumatic stress disorder (PTSD). However, these drugs are commonly studied after dosing just prior to extinction training, and there are gaps in our understanding of how they affect fear memory formation, their comparative effects on various types of memory, and of sexual dimorphisms in effects. Also, more studies involving female subjects are needed to balance the gender-inequality in the literature. Therefore, the purpose of this study was to directly compare the effects of CBD to citalopram in affecting the formation of auditory cued, contextual, and generalized fear memory, and to evaluate how extinction of these different memories was altered by pre-acquisition treatment in female mice. We also evaluated the impact of the estrous cycle on each of these.

Methods

Auditory-cued trace fear conditioning was conducted shortly after dosing female C57BL/6 mice, with either CBD or citalopram (10 mg/kg each), by pairing auditory tones with mild foot shocks. Auditory-cued, contextual, and generalized fear memory was assessed by measuring freezing responses, with an automated fear conditioning system, 24 h after conditioning. Each memory type was then evaluated every 24 h, over a 4-day period in total, to create an extinction profile. Freezing outcomes were statistically compared by ANOVA with Tukey HSD post hoc analysis, N = 12 mice per experimental group. Evaluation of sexual dimorphism was by comparison to historical data from male mice.

Results

Auditory cue-associated fear memory was not affected with CBD or citalopram; however, contextual memory was reduced with CBD by 11%, p < 0.05, but not citalopram, and generalized fear memory was reduced with CBD and citalopram, 20% and 22%, respectively, p < 0.05. Extinction learning was enhanced with CBD and citalopram, but, there was considerable memory-type variability between drug effects, with freezing levels reduced at the end of training by 9 to 17% for CBD, and 10 to 12% with citalopram. The estrous cycle did not affect any outcomes.

Conclusions

Both drugs are potent modifiers of fear memory formation; however, there is considerable divergence in their targeting of different memory types which, overall, could support the use of CBD as an alternative to SSRIs for treating PTSD in females, but not males. A limitation of the study was that it compared data from experiments done at different times to evaluate sexual dimorphism. Overall, this suggests that more research is necessary to guide any therapeutic approach involving CBD.

Condensed internet-delivered prolonged exposure provided soon after trauma: A randomised pilot trial

Exposure to trauma is common and may have detrimental psychological consequences. Brief exposure therapy provided early after trauma has shown encouraging results in promoting recovery. To scale up treatment availability, we developed a 3-week internet-delivered intervention comprised of four modules based on prolonged exposure (condensed internet-delivered prolonged exposure; CIPE) with therapist support. In this pilot study, we assessed the feasibility, acceptability, and preliminary efficacy of CIPE delivered within 2 months after the index event. Thirty-three participants were randomised to CIPE or a waiting list (WL). The frequency, vividness and distress of intrusive recollections or flashback memories of the traumatic event were assessed using an intrusive memory smartphone app. Symptoms of post-traumatic stress were assessed by the PTSD Symptom Checklist for DSM-5 (PCL-5). The most common index traumas in the sample were rape, interpersonal violence and life-threatening accidents. A majority of participants (82%) randomised to CIPE completed all modules, and the number of logins per participant to the Internet platform was high during the three-week intervention (M = 19.6, SD = 11.8). At post-treatment, the CIPE participants had a more favourable reduction than the WL group on the vividness and distress ratings, as well as on the PCL-5 sum score (bootstrapped d = 0.85; 95% CI [0.25-1.45]). Treatment effects were sustained at 6-months follow up and no severe adverse events associated with the intervention were found. CIPE seems to be a feasible and possibly efficacious early intervention after trauma. Large-scale trials are needed to assess its efficacy and long-term benefits.

Associations of serious physical injuries with posttraumatic stress and depressive symptoms: a cross-sectional survey among university students in 26 countries

Background

Evidence of the relationship between serious physical injury and poor mental health among university students from low- and middle-income countries is limited. The aim of the study is to assess the association between serious physical injury and posttraumatic stress disorder (PTSD) and depressive symptoms in university students from low- and middle-income countries.

Methods

In a cross-sectional survey, 18,382 university students from 26 countries responded to a short screening scale for DSM-IV PTSD, Center for Epidemiologic Studies Depression Scale as well as questions on injury and sociodemographics.

Results

The overall prevalence of past 12-month serious physical injury was 24.7%. In adjusted logistic regression analysis, compared to having no past 12-month serious physical injury, having a past 12-month serious injury was associated with 1.35 (95% CI 1.18, 1.56) times higher odds for PTSD symptoms and 1.49 (95% CI 1.32, 1.67) times higher odds for depressive symptoms in university students.

Conclusion

Compared to students who had not sustained a serious physical injury in the past 12 months, students with an injury had significantly higher PTSD and depressive symptoms. Mental health support of students who sustained physical injuries may prevent PTSD and depressive symptoms.

Heterogeneity in temporal self-appraisals following exposure to potentially traumatic life events: A latent profile analysis

BACKGROUND

People tend to believe that they continuously improve over time. In fact, Temporal Self-Appraisal Theory ("Chump to Champ") has found that people are motivated to derogate their past selves in favor of their present selves. Studies on temporal self-appraisals following trauma is less clear, with some studies showing perceived improvement whereas other studies show appraisals of decline.

METHOD

Utilizing Latent Profile Analysis (LPA), we tested for discrete patterns of temporal self-appraisals in undergraduate college students (N = 740) following trauma exposure. We then explored various trauma-related characteristics as predictors of profile membership.

RESULTS

LPA revealed three distinct profiles of appraisal styles (Profile 1: optimistic, Profile 2: chump to champ, Profile 3: pessimistic). The optimistic profile was associated with lower levels of PTSD and depression symptoms, whereas the optimistic and chump to champ profiles were associated with greater trauma centrality.

LIMITATIONS

Findings are limited in that this study utilized cross-sectional data from a sample of predominantly undergraduate females, thus conclusions regarding temporal relations among study constructs cannot be made and findings may not generalize to other populations.

CONCLUSION

Temporal self-appraisals following trauma exposure may reflect prototypical patterns in which individual appraise adaptation to potentially traumatic stress and may confer risk for psychopathology. Such findings have implications for approaches to intervention with clinical and non-clinical populations following trauma exposure.

The Potential Unique Impacts of Hope and Resilience on Mental Health and Well-Being in the Wake of Hurricane Harvey

Natural disasters can lead to mental health problems, such as posttraumatic stress disorder (PTSD). Higher levels of loss and/or disruption and prior trauma exposure constitute risk factors for mental illness, whereas protective factors, including hope and resilience, support positive functioning. The present cross-sectional study used structural equation modeling to examine the relative influence of resilience and hope on mental health and well-being 1-3 months after Hurricane Harvey made landfall in August 2017, among a sample of 829 adults in the Greater Houston, Texas area. Resilience was more strongly associated with reduced PTSD symptoms, β = -.31, 95% CI [-.42, -.21], than was hope, β = -.17, 95% CI [-;.30, -.04], whereas hope was more strongly associated with components of well-being, βs = .47-.63. Hope was positively associated with posttraumatic growth, β = .30, 95% CI [.19, .41], whereas resilience was negatively associated with posttraumatic growth, β = -.24, 95% CI [-.35, -.12]. These associations remained consistent after considering risk factors, although more variance in trauma-related outcomes was risk factors were included in the model. The present results suggest that considering the influence of both risk and resilience factors provides an enhanced picture of postdisaster mental health.

Early Pain and Other Somatic Symptoms Predict Posttraumatic Stress Reactions in Survivors of Terrorist Attacks: The Longitudinal Utøya Cohort Study

Survivors of traumatic events commonly suffer from long-term pain and related somatic symptomatology. To test the predominant hypothesis that survivors' pain comprises sequela of persistent posttraumatic stress symptoms (PTSS), we assessed the sequential order of symptom development among young survivors of a terrorist attack. All 490 survivors of the 2011 Utøya (Norway) attacks were invited to the longitudinal Utøya cohort study; 355 (72.4%) participated. The mean survivor age was 19.3 years (SD = 4.6) and 169 were female (47.6%). Somatic symptoms, including headache, other pain and fatigue, and PTSS, were measured 4-5 months (T1), 14-16 months (T2), and 32-33 months (T3) after the attack. Longitudinal associations between somatic symptoms and PTSS were assessed in cross-lagged structural equation model (SEM) analyses, which were adjusted for known confounders. Higher pain levels and other somatic symptoms at T1 consistently predicted PTSS at T2 in SEM analyses, r = .473, p < .001. Beyond this early-to-intermediate posttraumatic phase, somatic symptoms did not significantly predict PTSS: T2-T3, r = .024, p = .831; T1-T3, r = -.074, p = .586. PTSS did not significantly predict later somatic symptomatology at T1-T2, r = .093, p = .455; T2-T3, r = .272, p = .234; or T1-T3, r = -.279, p = .077. The findings indicate that survivors' early pain and related somatic symptoms strongly and consistently predict later psychopathology. After severe psychological trauma, early interventions may need to address individuals' pain to hinder chronification.

Assessment of Posttraumatic Stress Disorder and Educational Achievement in Sweden

IMPORTANCE

Posttraumatic stress disorder (PTSD) has been associated with impaired educational performance. Previous studies on the disorder could not control for important measured and unmeasured confounders.

OBJECTIVE

To prospectively investigate the association between PTSD and objective indicators of educational attainment across the life span, controlling for familial factors shared by full siblings, psychiatric comorbidity, and general cognitive ability.

DESIGN, SETTING, AND PARTICIPANTS

This population-based cohort study included 2 244 193 individuals born in Sweden between January 1, 1973, and December 31, 1997, who were followed-up until December 31, 2013. Clusters of full siblings were used to account for familial factors. Data analyses were conducted between December 2018 and May 2020.

EXPOSURE

International Classification of Diseases, Ninth Revision and International Statistical Classification of Diseases and Related Health Problems, Tenth Revision diagnoses of PTSD in the Swedish National Patient Register.

MAIN OUTCOMES AND MEASURES

Eligibility to access upper secondary education after finishing compulsory education, finishing upper secondary education, starting a university degree, and finishing a university degree.

RESULTS

Of the final cohort of 2 244 193 individuals (1 151 414 [51.3%] men) included in the analysis, 1 425 326 were assessed for finishing compulsory education (919 with PTSD), 2 001 944 for finishing upper secondary education (2013 with PTSD), and 1 796 407 and 1 356 741 for starting and finishing a university degree (2243 and 2254 with PTSD, respectively). Posttraumatic stress disorder was associated with lower odds of achieving each of the educational milestones during the study period, including 82% lower odds of finishing compulsory education (adjusted odds ratio [aOR], 0.18; 95% CI, 0.15-0.20), 87% lower odds of finishing upper secondary education (aOR, 0.13; 95% CI, 0.12-0.14), 68% lower odds of starting a university degree (aOR, 0.32; 95% CI, 0.28-0.35), and 73% lower odds of finishing a university degree (aOR, 0.27; 95% CI, 0.23-0.31). Estimates in the sibling comparison were attenuated (aOR range, 0.22-0.53) but remained statistically significant. Overall, excluding psychiatric comorbidities and adjusting for the successful completion of the previous milestone and general cognitive ability did not statistically significantly alter the magnitude of the associations.

CONCLUSIONS AND RELEVANCE

Posttraumatic stress disorder was associated with educational impairment across the life span, and the associations were not entirely explained by shared familial factors, psychiatric comorbidity, or general cognitive ability. This finding highlights the importance of implementing early trauma-informed interventions in schools and universities to minimize the long-term socioeconomic consequences of academic failure in individuals with PTSD.

Psychobehavioral Responses, Post-Traumatic Stress and Depression in Pregnancy During the Early Phase of COVID-19 Outbreak

Objective

The novel coronavirus disease (COVID-19) outbreak has aroused a range of negative effects. Such considerable influence can be greater in vulnerable populations including pregnant women. This study aimed to assess the presence of prenatal depression (PND, as an important risk factor of postpartum depression) and post-traumatic stress disorder (PTSD) and to characterize infection-induced preventive behaviors and psychological responses in the early phase of COVID-19 outbreak.

Methods

Based on a population-based sample of pregnant women from all regions in China, presence of probable PND and suspected PTSD were assessed using the Edinburgh Postnatal Depression Scale (≥13) and the PTSD Checklist (≥14), respectively. A web-based questionnaire was used to assess psychological and behavioral responses to COVID-19.

Results

Among a total of 1908 questionnaires returned, 1901 women provided valid data (mean [SD] age, 28.9 [4.7] years). High prevalence of probable PND (34%) and suspected PTSD (40%) among pregnant women was observed. Those with suspected PTSD presented six times higher risk of probable PND than the non-suspected (OR=7.83, 95% CI: 6.29-9.75; p<0.001). Most women (91%-96%) reported anxiousness about infection of themselves and the members within their social network. Lack of security and loss of freedom were reported in approximately two-thirds of pregnant women. More frequent preventive behaviors, including handwashing, use of facemasks, and staying at home, were undertaken in more than 80% of the sample. Anxiousness of miscarriage and preterm birth were prevalent (>75%).

Conclusions

High prevalence of PND and PTSD and high levels of anxiety suggest profound impacts of the present outbreak on mental health. This calls for special attention and support for vulnerable populations. Mental health care should become part of public health measures during the present outbreak and should continue to be intensified to empower the health system for post-outbreak periods.

Neurophysiological relationship of neuromuscular fatigue and stress disorder in PTSD patients

INTRODUCTION

Apart from mental disorders, other complications that have been reported in some patients with Post-Traumatic Stress Disorder (PTSD), include physical pain and being quick to fatigue, which can severely affect the patients' daily life. Therefore, this study aims to evaluate the relationship between PTSD and physical fatigue in people with PTSD.

METHOD

18 military men with (n = 9) and without PTSD (n = 9), with an age range of 45-60 years, volunteered to participate. They were randomly assigned into two groups: PTSD and non-PTSD groups. Recording of the surface electromyography (EMG) in a specific muscle was conducted twice in both groups, once at baseline and then again after a single session of fatiguing exercise. Data were analyzed by ANOVA with repeated measure (2✕2) at the significance level of 0.05.

RESULTS

Results showed that there was a significant main effect of intervention on electrical activity and neural conduction variables in the PTSD group (p = 0.04, p = 0.02). There was also an effect of time for the both variables (P < 0.001).

CONCLUSION

Stress disorders may affect the time to fatigue in PTSD patients and subsequently cause some difficulties in their daily life.

Differential Effects of Early Adversity and Posttraumatic Stress Disorder on Amygdala Reactivity: The Role of Developmental Timing

BACKGROUND

Posttraumatic stress disorder (PTSD) is associated with altered processing of threat-related stimuli. Neurobiological models implicate right amygdala hyperreactivity in these alterations, but this potential biomarker also has been observed in individuals exposed to adverse childhood experiences (ACEs) (i.e., abuse and neglect) without psychopathology. Separation of the differential contributions of PTSD and ACEs to amygdala reactivity might benefit from incorporating the developmental timing of the events.

METHODS

We conducted comprehensive retrospective interviews assessing ACEs for each life year between the ages of 1 and 17 years in a sample of 60 women exposed to trauma (including 34 participants with PTSD and 26 healthy participants). Functional magnetic resonance imaging was used to extract amygdala reactivity to threatening versus neutral scenes. Amygdala reactivity was predicted from PTSD diagnosis, total ACE severity, and ACE severity by life year using random forest regression.

RESULTS

PTSD and ACEs significantly predicted reactivity in the right amygdala (R² = 7%) but did not explain variance in the left amygdala. ACEs during both a prepubertal (ages 3 and 4) and a postpubertal (ages 16 and 17) period emerged as particularly predictive, while total ACE severity did not contribute to prediction. Follow-up analyses revealed a positive relationship between amygdala activity and PTSD and a negative relationship between amygdala activity and ACEs during predictive life years.

CONCLUSIONS

The opposing effects of PTSD and ACEs caution against simplistic etiological and diagnostic interpretations of amygdala function. The identification of potentially sensitive periods for the effects of ACEs on amygdala reactivity to threat may help to uncover interactions between traumatization and development of PTSD.

Post-traumatic stress, social, and physical health: A mediation and moderation analysis of Syrian refugees and Jordanians in a border community

OBJECTIVES

This study examined the mediating or moderating relationship of social health on physical health and post-traumatic stress symptoms among displaced Syrians and Jordanians at high risk for physical and mental health ailments. Frequency of mental health symptoms stratified by demographic factors was also explored. We hypothesized social health would mediate and/or moderate the relationship between physical and post-traumatic stress symptoms (PTSS).

METHODS

This cross-sectional study includes 598 adults between 18 and 75 years old recruited from three health centers in the city of Irbid, Jordan, 20 km away from the Syrian border. Post-traumatic stress symptoms (PTSS) were measured through the primary care post-traumatic stress disorder checklist. Physical and social health were assessed through the Duke Health Profile. One-way ANOVA and independent samples T-tests examined mean scores of social health, PTSS, physical health stratified by age, gender, nationality, education level, and trauma exposure. Bivariate correlations explored the relationship between social health, PTSS, and physical health. PROCESS macro tested social health as a moderator and mediator on the association of the physical health and PTSS.

RESULTS

Social health moderated and mediated the relationship between physical health and PTSS. Males reported (t = 2.53, p < .05) better physical health scores than females. Those who had less than a high school education reported lower social health (F = 13.83, p < .001); higher PTSS (F = 5.83, p < .001); and lower physical health (F = 5.76, p < .01) than more educated individuals. Syrians reported significantly higher PTSS (F = 4.13, p < .05) than Jordanians, however, there was no significant differences between nationality for physical or social health. Social health was positively associated with better physical health (r = 0.10, p < .01) and negatively with PTSS (r = -.293, p < .01).

CONCLUSIONS

Our results support our primary hypothesis suggesting social health mediates and moderates PTSS and physical health. Secondary findings illustrate gender, educational, and income differences in physical health and PTSS.

CLINICAL TRIALS REGISTRY

NCT03721848.

Polygenic prediction of PTSD trajectories in 9/11 responders

BACKGROUND

Genetics hold promise of predicting long-term post-traumatic stress disorder (PTSD) outcomes following trauma. The aim of the current study was to test whether six hypothesized polygenic risk scores (PRSs) developed to capture genetic vulnerability to psychiatric conditions prospectively predict PTSD onset, severity, and 18-year course after trauma exposure.

METHODS

Participants were 1490 responders to the World Trade Center (WTC) disaster (mean age at 9/11 = 38.81 years, s.d. = 8.20; 93.5% male; 23.8% lifetime WTC-related PTSD diagnosis). Prospective longitudinal data on WTC-related PTSD symptoms were obtained from electronic medical records and modelled as PTSD trajectories using growth mixture model analysis. Independent regression models tested whether six hypothesized psychiatric PRSs (PTSD-PRS, Re-experiencing-PRS, Generalized Anxiety-PRS, Schizophrenia-PRS, Depression-PRS, and Neuroticism-PRS) are predictive of WTC-PTSD outcomes: lifetime diagnoses, average symptom severity, and 18-year symptom trajectory. All analyses were adjusted for population stratification, 9/11 exposure severity, and multiple testing.

RESULTS

Depression-PRS predicted PTSD diagnostic status (OR 1.37, CI 1.17-1.61, adjusted p = 0.001). All PRSs, except PTSD-PRS, significantly predicted average PTSD symptoms (β = 0.06-0.10, adjusted p < 0.05). Re-experiencing-PRS, Generalized Anxiety-PRS and Schizophrenia-PRS predicted the high severity PTSD trajectory class (ORs 1.21-1.28, adjusted p < 0.05). Finally, PRSs prediction was independent of 9/11 exposure severity and jointly accounted for 3.7 times more variance in PTSD symptoms than the exposure severity.

CONCLUSIONS

Psychiatric PRSs prospectively predicted WTC-related PTSD lifetime diagnosis, average symptom severity, and 18-year trajectory in responders to 9/11 disaster. Jointly, PRSs were more predictive of subsequent PTSD than the exposure severity. In the future, PRSs may help identify at-risk responders who might benefit from targeted prevention approaches.

PTSD symptoms among health workers and public service providers during the COVID-19 outbreak

In the frontline of the pandemic stand healthcare workers and public service providers, occupations which have proven to be associated with increased mental health problems during pandemic crises. This cross-sectional, survey-based study collected data from 1773 healthcare workers and public service providers throughout Norway between March 31, 2020 and April 7, 2020, which encompasses a timeframe where all non-pharmacological interventions (NPIs) were held constant. Post-traumatic stress disorder (PTSD), anxiety and depression were assessed by the Norwegian version of the PTSD checklist (PCL-5), General Anxiety Disorder -7, and Patient Health Questionnaire-9 (PHQ-9), respectively. Health anxiety and specific predictors were assessed with specific items. Multiple regression analysis was used for predictor analysis. A total of 28.9% of the sample had clinical or subclinical symptoms of PTSD, and 21.2% and 20.5% were above the established cut-offs for anxiety and depression. Those working directly in contrast to indirectly with COVID-19 patients had significantly higher PTSD symptoms. Worries about job and economy, negative metacognitions, burnout, health anxiety and emotional support were significantly associated with PTSD symptoms, after controlling for demographic variables and psychological symptoms. Health workers and public service providers are experiencing high levels of PTSD symptoms, anxiety and depression during the COVID-19 pandemic. Health workers working directly with COVID-19 patients have significantly higher levels of PTSD symptoms and depression compared to those working indirectly. Appropriate action to monitor and reduce PTSD, anxiety, and depression among these groups of individuals working in the frontline of pandemic with crucial societal roles should be taken immediately.

Self-administered EMDR therapy: potential solution for expanding the availability of psychotherapy for PTSD or unregulated recipe for disaster?

BACKGROUND

Post-traumatic stress disorder (PTSD) carries a high disease burden worldwide, yet significant barriers exist to providing and accessing treatment for PTSD, particularly in refugee populations and in low- and middle-income countries. There is emerging evidence that self-administered psychological therapies, such as those accessed via online and mobile applications, are efficacious for many mental illnesses and increase access to treatment. Online and mobile applications offering self-help tools for eye movement desensitisation reprocessing (EMDR) therapy, an internationally recommended treatment for PTSD, are already widely distributed to the public.

AIMS

To present a commentary evaluating the potential benefits and risks of self-administered EMDR therapy: first, by conducting a search for existing peer-reviewed evidence relating to self-administered EMDR therapy; second, by presenting existing evidence for other self-help psychotherapies and evaluating what additional insight this could provide into the potential efficacy, safety, tolerability and accessibility of self-administered EMDR therapy; and, third, by describing the conflicting views of EMDR experts on the topic.

METHOD

A search was conducted for articles related to internet, mobile, book or computerised self-help EMDR therapy. The following databases were searched systematically: Medline, PsycInfo, EMBASE, AMED, CINAHL, Psychology and Behavioural Sciences, Cochrane Database and the EMDR Library.

RESULTS

Only one small primary research study was found relating to self-administered EMDR therapy. The results indicated significantly reduced symptoms of PTSD, depression, anxiety, distress and disability between pre-treatment and 3 month follow-up. No serious adverse events were reported. However, substantial methodological issues were discovered.

CONCLUSIONS

There is evidence that self-administered psychotherapies, in general, can be safe, effective and highly accessible. However, controversies persist regarding the safety and potential efficacy of self-administered EMDR therapy, and more robust research is needed. It is vital that methods are found to improve worldwide access to effective PTSD treatment, particularly given the current scale of migration to flee civil unrest.