Risk For Posttraumatic Stress Disorder Research Articles

Female Wistar Kyoto More Immobile rats with genetic stress hyper-reactivity show enhanced contextual fear memory without deficit in extinction of fear.

The prevalence of post-traumatic stress disorder (PTSD) is higher in females than males, but pre-clinical models are established almost exclusively in males. This study is aimed to investigate the stress-enhanced fear learning model of PTSD in females. The model mirrors PTSD symptomology in males, whereby prior stress leads to extinction resistant exaggerated contextual fear memory. As stress reactivity is highly relevant to the study and risk for PTSD, females of the stress hyper-reactive Wistar Kyoto More Immobile (WMI) and its nearly isogenic control the Wistar Kyoto Less Immobile (WLI) strains were employed. Prior studies have shown WMI females presenting unchanged or enhanced fear memory in the stress-enhanced fear learning paradigm compared WLIs. The present study confirmed the enhanced fear memory following contextual fear conditioning in WMIs compared to WLI females, but this increased fear memory was neither exaggerated by prior stress nor showed extinction deficit. The novel stressor of a glucose challenge test resulted in subtle strain- and prior stress-induced differences in plasma glucose responses. However, fasting plasma corticosterone levels were lower, and rose slower in response to glucose challenge in WMI females, suggesting a PTSD-like dysfunctional stress response. Hippocampal expressions of genes relevant to both learning and memory and the stress response were decreased in stressed WMIs compared to WLI females, further suggesting a marked dysregulation in stress-related functions like in PTSD. Thus, although WMI females do not show extinction-resistant enhanced fear memory, they do present other characteristics that are relevant to PTSD in women.

Impact of the February 6, 2023, Turkey earthquake on post-traumatic stress disorder, internet addiction and insomnia: A cross-sectional study.

After earthquakes, individuals may increase their internet usage to cope with post-traumatic stress symptoms, potentially leading to internet addiction and sleep disturbances. This study aims to determine the levels of post-traumatic stress disorder (PTSD), internet addiction and insomnia in earthquake survivors 1 year after the event and to explore the relationships between these variables. This cross-sectional descriptive study was conducted between April and June 2024 through face-to-face interviews with 554 individuals who survived the February 6, 2023 earthquake in Turkey, 1 year after the event. Data were collected using the PTSD Checklist for DSM-5 (PCL-5), the Young Internet Addiction Test-Short Form (YIAT-SF) and the Insomnia Severity Index (ISI). A statistically significant moderate positive correlation was found between PCL-5, YIAT-SF and ISI based on the Pearson correlation test (r = .32 and .44, respectively; p < .05). According to the logistic regression analysis, experiencing physical injury during the earthquake and the loss of first-degree relatives were found to predict the severity of PTSD symptoms (p = .04, OR = 2.44, 95% CI [1.04, 5.65]; p < .001, OR = 1.98, 95% CI [1.26, 3.06], respectively). Additionally, the YIAT-SF and ISI variables were found to be statistically significant predictors of PTSD symptom severity (p < .001, OR = 1.04, 95% CI [1.01, 1.07]; p < .001, OR = 1.18, 95% CI [1.12, 1.23], respectively). It is concluded that the severity of PTSD symptoms in earthquake survivors is associated with the severity levels of insomnia and internet addiction. Additionally, it is determined that experiencing injury or loss of a loved one during the earthquake may increase the severity of PTSD symptoms. To protect earthquake survivors from the risk of PTSD, it may be necessary to provide psychosocial support focussed on positive coping strategies for internet addiction and insomnia.

Gender disparity and post-traumatic stress disorder and elevated psychological distress in humanitarian migrants resettled in Australia: the moderating role of socioeconomic factors.

Humanitarian migrants are at increased risk of post-traumatic stress disorder (PTSD) and elevated psychological distress. However, men and women often report varying degrees of stress and experience different challenges during migration. While studies have explored PTSD, psychological distress, gender, and resettlement stressors, they have not explored the interplay between these factors. This study aims to address that gap by investigating gender disparities in PTSD and psychological distress among humanitarian migrants in Australia, with a focus on the moderating role of socioeconomic factors. This study used data from five waves of the Building a New Life in Australia (BNLA) survey, a longitudinal study of 2,399 humanitarian migrants who arrived in Australia in 2013. PTSD and psychological distress were measured using the PTSD-8 and Kessler-6 (K6) scales, respectively. We conducted generalised linear mixed-effect logistic regression analyses stratified by gender. Female humanitarian migrants exhibited a significantly higher prevalence of PTSD and psychological distress than males over five years of resettlement in Australia. Women facing financial hardship, unemployment, or residing in short-term housing reported greater levels of PTSD and distress compared to men. Women facing financial hardship, inadequate housing, and unemployment exhibit higher rates of PTSD and psychological distress, underscoring the significant impact of socioeconomic factors. Addressing these challenges at both individual and systemic levels is essential for promoting well-being and managing mental health among female humanitarian migrants.

Post-traumatic stress disorder and symptoms in paediatric cancer survivors and their family nucleus: systematic review, meta-analysis and meta-regression.

Various studies have highlighted the increased incidence and symptoms of depression and anxiety in paediatric cancer survivors (PCS). Yet no meta-analysis has focused on post-traumatic stress disorder (PTSD) or post-traumatic stress symptoms (PTSS) in PCS and their family nucleus. To evaluate the overall risk of PTSD and severity of PTSS in PCS and their family nucleus. Secondary objectives include identifying potential risk factors of PTSD and high PTSS. We systematically searched PubMed, Embase and PsycINFO for studies comparing the risk of PTSD and PTSS severity among PCS, their family nucleus and non-cancer controls. PRISMA reporting guidelines were followed. Random effects meta-analyses and meta-regressions were conducted. From 1089 records, we included 21 studies. PCS have an increased risk of PTSD (risk ratio 2.36, 95% CI 1.37-4.06) and decreased PTSS severity (standardised mean difference -0.29, 95% CI -0.50 to -0.08). Subgroup analyses of other categorical study-level characteristics revealed that female PCS who were older at diagnosis and data collection had a significantly higher risk of PTSD. Meta-regression were insignificant. Family nucleus did not show a significantly increased risk of PTSD (risk ratio 1.13, 95% CI 0.59-5.00) and PTSS severity (standardised mean difference 0.53, 95% CI -0.00 to 1.06). Systematically reviewing studies on the family nucleus found that the majority reported a significantly increased risk of psychological trauma compared with the comparator. Lower education, income and social status were also risk factors. Timely identification and interventions are imperative for policy makers and healthcare providers to prevent trauma from worsening in this population group.

Development of a codebook for the narrative analysis of in-hospital trauma interviews of patients following stroke.

Given their sudden onset and life-threatening consequences, strokes and transient ischemic attacks (TIAs) can trigger posttraumatic stress disorder (PTSD). To gain a deeper understanding of the potential influence of factors in patients' descriptions of these medical events on PTSD, we conducted a standardized trauma interview with a convenience sample of patients hospitalized for suspected stroke/TIA (N = 98) to assess the details and emotional experience of the stroke/TIA event. Three researchers reviewed the interviews and the research literature on risk and protective factors for PTSD. From this analysis, a codebook with descriptions, examples, and scoring protocols for eight Likert scale, two categorical, and four binary codes was developed. Upon demonstrating sufficient interrater reliability, the research team scored all narratives. Three superordinate themes were identified in the analysis: distress (e.g., fear, helplessness), potential protective factors (e.g., positive expectancies, concern for loved ones), and level of detail (e.g., somatic detail, emotional detail). Differences in perceptions, themes, and expectations emerged in the narratives, indicating a wide range of responses following stroke/TIA. Additionally, patient age was negatively correlated with scores for the fear, r = -.34, p <.001, and negative consequences, r = -.24, p =.018, codes and positively associated with the likelihood of having positive expectancies, OR = 1.05, 95% CI [1.00, 1.10], p =.039. These findings provide a more comprehensive understanding of how patients reflect on their experiences post-stroke/TIA and can inform future research on the contributions of trauma narrative characteristics and emotional responses to PTSD risk.

Improving psychological and social support needs after traumatic birth: A qualitative study

IntroductionEmergency deliveries increase maternal risk for postpartum depression (PPD) and post-traumatic stress disorder (PTSD). One in three women describe their birth experience as traumatic, but patient-centered support needs are unclear. We conducted a qualitative study of women with traumatic birth to identify patient-centered priorities to optimize mental health support. MethodsSemi-structured interviews were conducted with women who experienced an emergency during birth, and who self-identified as experiencing traumatic birth. The Stanford Acute Stress Reaction Questionnaire and PTSD Checklist were completed. Interviews included open-ended questions about birth events that improved or worsened their delivery experience, perceptions of mental, physical, and emotional support provided by staff, and patient perspectives about psychological and social support referrals after emergent deliveries. ResultsA majority of participants met positive screening criteria for PTSD at the time of interviews. Birth experiences were affected by prenatal expectations, as well as the style and quality of clinical staff communication during and after delivery. There were four key themes central to their experiences and perceptions: (1) Emotional Impact and Intensity, (2) Factors Influencing Birth Experience, (3) Perceived Lack of Emotional Support, and (4) Desire for Post-Birth Follow-Up and Support. Participants almost unanimously desired to be offered psychosocial services after birth trauma. ConclusionThere are significant gaps in emotional support and communication for patients experiencing traumatic births. Offering structured, in-hospital mental health referrals may address immediate psychological needs, aid in trauma recovery, and potentially mitigate long-term mental health consequences. These findings advocate for a more holistic approach to postpartum care that prioritizes both physical and emotional well-being.

Prevalence of depression, anxiety and post-traumatic stress disorder (PTSD) after acute myocardial infarction: a systematic review and meta-analysis

Abstract Background There is increasing recognition that patients experience a greater risk of mental illnesses after an acute myocardial infarction (AMI), with the former being linked to worse post-AMI outcomes. However, the prevalence of these conditions is largely unknown as most studies focus on depression and few on other illnesses such as anxiety and post-traumatic stress disorder (PTSD). Additionally, existing studies mostly involved diagnoses of mental illnesses through patient-reported questionnaires which may carry subjectivity (1). Therefore, we conducted a systematic review and meta-analysis to estimate the prevalence and risk factors of developing depression, anxiety and PTSD after an AMI with the inclusion of only studies with official diagnoses of the mental illnesses. Methods Searches in MEDLINE, EMBASE, and PsycINFO up to January 23, 2023, identified 25 qualifying studies that examined the risk of depression, anxiety and PTSD after AMI, with case definitions based strictly on psychiatrist-administered structured interviews according to the Diagnostic and Statistical Manual for Mental Disorders (DSM) criteria. Meta-analyses of proportions using random-effects models estimated the pooled prevalence of each outcome at the &amp;lt;3-month and &amp;gt;3-month time-points. Heterogeneity was tested using I-squared statistics, if significant heterogeneity was found, subgroup analyses and meta-regression analyses were performed to identify the source of heterogeneity. Study quality was assessed using the Newcastle-Ottawa Scale (NOS) and Risk of Bias 2 (RoB2) Tool, and publication bias using the funnel plot and verified by the Egger’s and Begg’s tests. Results A total of 25 studies were included in the meta-analysis. The pooled prevalence of depression post-AMI (20 studies) was 16.70% (95% CI: 12.40%; 22.11%), with pooled prevalence &amp;lt;3-month and &amp;gt;3-month post-AMI at 19.46% (95% CI: 15.47%; 24.19%) and 14.87% (95% CI: 9.55%; 22.43%) respectively. Pooled prevalence of anxiety (7 studies) and PTSD (3 studies) were 11.96% (95% CI: 6.15; 21.96%) and 10.26% (95% CI:5.49;18.36%) respectively. Subgroup analysis showed that the pooled prevalence of both depression and anxiety are significantly higher in the female gender, in those with hypertension, diabetes or hyperlipidemia, and in smokers, while the pooled prevalence of depression is higher in unmarried than married individuals and in patients with a history of depression. Meta regression indicates that history of depression is a significant predictor of prevalence of depression (p= 0.0035, regression coefficient 1.54). Conclusion The prevalence of mental illnesses is high after AMI. Risk factors identified included female gender, hypertension, diabetes, hyperlipidemia, smoking, depression history, as well as one’s social set-up. These findings highlight the importance of screening at-risk patients and early intervention to improve long-term outcomes after AMI.Forest plot of depression prevalenceSubgroup analysis for depression

Association between the number of individuals injured in a traumatic event and posttraumatic stress disorder among hospitalized trauma patients.

Posttraumatic stress disorder (PTSD) often occurs following mass casualty events, yet the connection between the number of individuals injured in an event and PTSD risk in smaller-scale events (i.e., involving one or several injured persons)remains unclear. We conducted a registries-based study cross-referencing three databases across the continuum of care for military trauma patients hospitalized for traumatic injuries. The study population was categorized into three groups based on the number of injured individuals involved (i.e., single injured person, two to four [2-4] injured people, and five or more [≥ 5] injured people), and PTSD prevalence was assessed using long-term disability claim diagnoses. Overall, 4,030 military personnel were included (age at injury: Mdn = 20 years), and 18.3% were subsequently diagnosed with PTSD, with the highest prevalence in events involving ≥ 5 injured individuals (35.8%). Regression analyses adjusted for potential confounders revealed that being injured in an event with 2-4 injured persons, OR = 1.68, 95% CI [1.31, 2.15], or ≥ 5 injured persons, OR = 2.36, 95% CI [1.79, 3.13], was associated with increased odds of developing PTSD compared to being the sole injured person. The findings suggest a direct association between the number of injured individuals in an event and PTSD prevalence among traumatic injury survivors. The results underscore the importance of early diagnosis and interventions to prevent PTSD in individuals injured in multicasualty and mass casualty events.

Screening for posttraumatic stress disorder (PTSD) in Mozambique: Validation of the Primary Care Posttraumatic Stress Disorder Screen for Diagnostic and Statistical Manual fifth edition (PC-PTSD-5).

The confluence of conflict-, climate-, and public health-related emergencies in Mozambique increases the risk of posttraumatic stress disorder (PTSD). Few brief screening tools for PTSD have been validated in low- and middle-income countries. We aimed to validate the five-item Primary Care PTSD Screen for the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5), the PC-PTSD-5 in Mozambique. This study recruited 957 participants who completed the Mini-International Neuropsychiatric Interview-Plus (MINI-Plus) and PC-PTSD-5, a convenience sample from primary and tertiary care settings in Maputo, Mozambique. Participants were administered a diagnostic interview for psychiatric disorders and the PC-PTSD-5 screening tool. We evaluated the criterion validity of the PC-PTSD-5 concerning the MINI-Plus diagnosis of PTSD, the internal construct validity and reliability using confirmatory factor analysis and Kuder-Richardson 20 (KR-20), discriminant validity of the PC-PTSD-5 in comparison to other common mental disorder and suicide risk screening tools, and measurement invariance of selected cutoffs by age, sex, and comorbidity. Internal consistency of the PC-PTSD-5 was high (KR-20 = 0.837), and confirmatory factor analysis suggested that a single PTSD factor fits the data well. PC-PTSD-5 items were moderately correlated with other psychiatric symptoms. Criterion validity analyses revealed that a cutoff score of 3 provided high specificity (0.833) and moderate sensitivity (0.673). This cutoff score performed optimally across age and gender; however, a cutoff score of 2 was preferred if the participant had no psychiatric comorbidities. Screening with the PC-PTSD-5 may facilitate case detection and linkages to appropriate treatment for individuals affected by potentially traumatic events in Mozambique. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Use of renin-angiotensin system blockers and posttraumatic stress disorder risk in the UK Biobank: a retrospective cohort study

BackgroundPrevious research has shown that the use of renin-angiotensin system (RAS) blockers is linked to a lower prevalence of posttraumatic stress disorder (PTSD), but longitudinal studies are scarce. We aimed to estimate the association between the use of RAS blockers and the risk of PTSD among individuals taking antihypertensive medications.MethodsThis longitudinal study included participants aged 40–69 from the UK Biobank. Exposure data were obtained from the initial assessment (2006–10), while outcome data were obtained from the online mental health questionnaire administered 6–11 years later (2016–17). We included participants who were under antihypertensive treatment and did not have a prior diagnosis of PTSD before the initial assessment. Use of RAS blockers was defined as self-reported regular use, at the initial assessment, of angiotensin-converting enzyme inhibitor (ACEi) or angiotensin receptor blocker (ARB). Among participants who experienced adverse life experiences, cases of probable PTSD were defined with the six-item PTSD Checklist-Civilian version score ≥ 14. Logistic regression with inverse probability of treatment weighting was used to estimate the odds ratios (ORs) and 95% confidence interval (CI) for the association between RAS blocker use and the risk of probable PTSD.ResultsOf the 15,954 participants (mean age = 59.9 years; 42.6% women) under antihypertensive treatment with no prior history of PTSD at the initial assessment, 64.5% were taking RAS blockers. After a mean follow-up of 7.5 years, 1,249 (7.8%) were newly identified with probable PTSD. RAS blocker users had a lower risk of probable PTSD than RAS blocker non-users (OR = 0.84 [95% CI: 0.75–0.94]), whereas the use of other antihypertensive medications showed no such association (users vs. non-users; calcium channel blockers, OR = 0.99 [95% CI: 0.88–1.11]; beta-blockers, 1.20 [1.08–1.34]; and thiazide-related diuretics, 1.15 [1.03–1.29]). The association between probable PTSD risk and the use of ACEi vs. ARB showed no significant difference (p = 0.96).ConclusionsAmong individuals under antihypertensive treatment, the use of RAS blockers was associated with a decreased risk of probable PTSD. This added benefit of RAS blockers should be considered in the selection of antihypertensive medications.

Postpartum depression, and post-traumatic stress disorder and resultant risk factors among teenage mothers: a community-based study

The prevalence of postpartum depression in teenage mothers is higher than that in adult mothers. The present study aimed to investigate the prevalence of depression, distress, and post-traumatic stress disorders (PTSD) following childbirth and its resultant risk factors among teenage mothers. Material and Methods. This cross-sectional study was carried out on 167 teenage women aged 11–19 years, 8-week after giving birth, in Tabriz, Iran. The data were collected using by socio-demographic characteristics questionnaire, Edinburgh Postnatal Depression Scale, Posttraumatic Stress Disorder Checklist and Postpartum Distress Measure scale. Results. The study results revealed that 12.6% and 7.2% of the participants had postpartum depression and PTSD, respectively. The results showed that the variables of the number of children, dissatisfaction with marriage, and history of preconception depression were among the risk factors associated with postpartum depression. The results indicated that unwanted pregnancy, lack of spousal support, insufficient income, and infant restlessness variables were predictors of PTSD. Conclusion. Based on our findings, it is crucial to identify teenage mothers with predisposing factors for postpartum depression and PTSD. Providing family planning counseling to reduce unwanted pregnancies, training fathers to support their spouses, and ensuring timely referral of high-risk individuals are essential interventions to address the mental health challenges faced by teenage mothers.

Psychological morbidity among coal miners compared to other occupations in Appalachia

ObjectivesDepressive symptoms, anxiety, and post-traumatic stress disorder (PTSD) are common morbidities among coal miners, but the risk of these morbidities has not been analyzed relative to other occupations taking into account relevant covariates.MethodsUsing random digit dialing, we surveyed men aged 50 or over with a history of employment who resided in counties in Appalachia with high coal workers’ pneumoconiosis (CWP) mortality rates. We used the Primary Care Post-Traumatic Stress (PTSD) Screen and the Brief Trauma Questionnaire to query specific traumatic experiences. We used the Patient Health Questionnaire scale to assess depression symptoms and the Generalized Anxiety Disorder questionnaire to measure anxiety. Multivariable logistic regression analyzed associations between coal mining and depression, anxiety, and PTSD, adjusting for trauma, smoking and demographics.ResultsOf 1,428 participants, 233 (16.3%) reported coal mining employment. Coal mining was associated with increased odds of depression (OR 1.6; 95% CI 1.1 to 2.4) and anxiety (OR 1.7; 95% CI 1.1 to 2.7). Among those with any trauma (n = 711), coal mining was not associated with increased risk of PTSD (OR 0.80; 95% CI 0.5 to 1.3]. Non-coal trauma was associated with three-fold increased odds of anxiety (OR 3.2; 95% CI 2.0 to 5.1); for coal trauma, anxiety was associated with six-fold increased odds (OR 6.0; 95% CI 2.9 to 12.4).ConclusionsAppalachian region coal miners carry an increased burden of depression and anxiety. This should be recognized by clinicians and at a population level, as worthy of individual and public health intervention.

Interaction of Val66Met Brain-Derived Neurotrophic Factor and 5-HTTLPR Serotonin Transporter Gene Polymorphisms with Lifetime Prevalence of Post-Traumatic Stress Disorder in Primary Care Patients

Background/Objectives: Post-traumatic stress disorder (PTSD) is a complex condition influenced by both genetic and environmental factors. This longitudinal study aimed to explore the connection between two specific genetic polymorphisms, Val66Met and 5-HTTLPR, and the lifetime prevalence of PTSD in patients from primary care settings. We also examined the role of sociodemographic and psychosocial factors to provide a more comprehensive view of PTSD risk. Methods: We recruited a cohort of primary care patients and diagnosed PTSD using a standardized diagnostic interview. Genetic analyses focused on Val66Met and 5-HTTLPR polymorphisms. We applied logistic regression to assess the association between these genetic markers and PTSD, considering factors such as gender, family history of depression, and experiences of childhood maltreatment. Results: Our findings show that women, individuals with a family history of depression, and those exposed to childhood maltreatment have a higher risk of developing PTSD. While the Val66Met polymorphism was not significantly associated with PTSD, the 5-HTTLPR polymorphism showed a marginal relationship. No significant interaction was found between the two polymorphisms in relation to PTSD. Conclusions: This study underscores the multifactorial nature of PTSD, influenced by both genetic and environmental factors. The findings point to the importance of further research on genetic predispositions and highlight the value of early interventions for high-risk populations in primary care settings.

Reducing PTSD in mass medical events: An immediate preventive intervention

A preventive approach to Post-Traumatic Stress Disorder (PTSD) through an Immediate Psycho-Trauma Intervention (IPTI) may significantly reduce PTSD likelihood and provide a cost-effective way to alleviate suffering. This mixed-method study 1) compared medics who received an IPTI to those who did not after a mass medical event, 2) compared the number medics diagnosed with PTSD from the IPTI group to the minimum number in similar cases reported in the literature. The results indicated that 1.09 % of the medics who underwent the IPTI (N = 275) followed by peer discussion groups and a memorial ceremony were formally diagnosed with PTSD in contrast to the 5 %-20 % reported in similar circumstances. Of these, all but three resumed work within their emergency medical teams. In the one-year qualitative follow-up interviews (N = 14), the IPTI recipients exhibited significantly fewer PTSD symptoms and negative effects than the non-IPTI group. They reported fewer negative themes and a reduced need for professional psycho-trauma assistance, with no significant differences in event recollections between groups. These findings point to the efficacy of the VIOS IPTI in mitigating PTSD risk and suggest its potential for widespread application in clinical settings as a preemptive measure in response to traumatic events.

Do adverse childhood experiences increase the risk of postpartum traumatic stress and depression?

This study was conducted to determine the effect of childhood adverse experiences on the risk of postpartum posttraumatic stress disorder (PP-PTSD) and postpartum depression (PPD). This descriptive study was conducted with 417 mothers between 1 March and 30 April 2022. Data were collected using a demographic and obstetric information form, the Adverse Childhood Experiences Questionnaire (ACE), City Birth Trauma Scale (CityBiTS) and Edinburgh Postpartum Depression Scale (EPDS) through the Google Forms platform. The mothers participating in the study had a mean age of 30.47 ± 4.21 years, 65.9% (n = 275) had at least one ACE, 10.3% (n = 43) met all of the DSM-5 PTSD criteria according to the CityBiTS, and 91.8% (n = 383) had at least one traumatic stress symptom. Correlation analysis revealed weak positive associations between number of ACEs and CityBiTS score (p < 0.001, r = 0.328) and EPDS score (p < 0.001, r = 0.291) and a moderate positive association between CityBiTS and EPDS scores (p < 0.001, r = 0.601). PP-PTSD was found to be a partial mediator variable between ACE and PPD. The presence of ACE in mothers was found to increase the risk of developing PPD, both alone and when combined with traumatic birth experience. Therefore, we believe that screening for a history of ACE during pregnancy, investigating traumatic birth experiences in the postpartum period, closer follow-up of mothers with both ACE and traumatic birth experiences and increasing support systems will be beneficial in the prevention and early diagnosis of PPD.

Understanding nightmares after traumatic events in Detroit (UNiTED): prospective associations with interpersonal violence and posttraumatic stress disorder symptoms

ABSTRACT Background: Research suggests trauma-related nightmares (TRNs) during the acute aftermath of trauma may contribute to posttraumatic stress disorder (PTSD). However, it is unknown who is most vulnerable to TRNs, which is critical to identify at-risk patients toward whom early nightmare-focused treatments can be targeted to prevent PTSD. Objective: We tested trauma type (interpersonal violence [e.g. assault] vs non-interpersonal trauma [e.g. motor vehicle collision]) as a risk factor for TRNs in a predominantly low-income, Black, urban sample in Detroit, MI, USA. Method: We recruited patients from the intensive care unit following traumatic injury (N = 88; M age = 39.53 ± SD 14.31 years, 67.0% male, 67.0% Black, 47.7% annual income ≤ $20,000) and administered surveys at three post trauma timepoints: one week (T1), one month (T2; n = 61), and two months (T3; n = 59). Trauma type was assessed at T1 via electronic medical records. Participants reported the extent to which their dreams’ content was similar to the trauma for which they were hospitalized across T1-T3. Participants then completed the PTSD Checklist for DSM-5 at T3. Results: TRNs were more prevalent over time among patients exposed to interpersonal violence (80%) vs non-interpersonal trauma (48.7%, p = .005). Patients hospitalized for interpersonal violence faced greater odds for TRNs across timepoints relative to non-interpersonal trauma patients (Odds Ratio = 4.95, p = .021). TRNs, in turn, prospectively predicted PTSD symptoms such that TRNs at T2 presaged more severe PTSD at T3 (p = .040, η p 2 = .31), above and beyond T1 PTSD status. Conclusions: This prospective study provides first evidence that interpersonal violence exposure is a robust risk factor for TRNs, which prospectively contribute to PTSD symptom development. Early intervention on TRNs after interpersonal violence exposure may decrease PTSD risk. Future studies are encouraged to use ambulatory methods to capture nightmares sooner after they occur.

Paramedics at risk? How responding to a terror attack affects mental wellbeing

Background: Terror attacks have a significant impact on first responders’ wellbeing, with an associated risk of post-traumatic stress disorder (PTSD). Aims: To improve understanding of how responding to terror attacks affects paramedics’ mental health. Methodology: A literature search was carried out on databases using the PRISMA strategy. Critical appraisal tools were used alongside thematic analysis to appraise and synthesise the literature. Findings: Ten papers were identified. Themes arising regarding risks to responders included: the level of exposure, with the amount related to the risks of developing PTSD and psychopathology; and level of preparedness, with responders carrying out unfamiliar tasks and working outside the scope of practice as well as lacking education on the psychological impact of terror attacks. Conclusion: If paramedics are deployed into terror attack warm zones, policy needs to consider the associated psychological risk. Training should incorporate stress management techniques and education on the extreme emotions these practitioners may experience. More research specifically with the paramedic population is required to understand the risk posed to them and how this may be managed.

Application of ICU electronic diary platform based on co-design concept in Chinese critically ill patients: a mixed methods study protocol.

Critically ill patients are at a heightened risk for post-traumatic stress disorder (PTSD). While the intensive care unit (ICU) diary has been shown to improve the mental health and quality of life of ICU patients, the handwritten version still has some limitations such as a lack of support for multimedia content and writing by remote family members, as well as being time-consuming and labour-intensive. We hypothesise that constructing an ICU electronic diary platform based on a co-design approach and verifying its applicability could alleviate these limitations, making the ICU diary more convenient for users. This sequential exploratory mixed-methods study will consist of four consecutive phases: understanding the ICU diary research content and implementation, developing an ICU electronic diary platform after conducting qualitative interviews with stakeholders, verifying the applicability of the platform and verifying its effectiveness. Ethics approval was obtained from the Biomedical Research Ethics Committee of the Affiliated Hospital of Zunyi Medical University (approval number: KLL-2023-602). The results of this study will be distributed through peer-reviewed journals. Chinese Clinical Trial Register (ChiCTR2400079903).

Understanding Intensive Care Unit Family Caregivers' Vulnerability to Post-Traumatic Stress Disorder: The Impact of Neurotic Personality Traits, Emotional Suppression, and Perceptions of Unexpected Death.

Rationale: Family members of patients who die in an intensive care unit (ICU) are at heightened risk of post-traumatic stress disorder (PTSD) symptoms. Not all surrogates develop these symptoms and heterogeneity exists in PTSD symptom clusters. Objectives: The study tested a personality model of PTSD symptoms in bereaved family caregivers of ICU patients. It was hypothesized that family members endorsing higher levels of neurotic personality traits would report higher levels of PTSD symptom clusters and that these associations would be explained by tendencies to view the patient's death as unexpected and to cope by suppressing their emotions. Methods: Participants were family members of ICU patients at an urban, academic medical center who either died or were discharged to an inpatient hospice unit. Participants were contacted for participation at least six months after the patient's death. Participants completed measures of personality, emotion regulation, and PTSD symptoms. Data were analyzed using path analysis. Results: Approximately one-third (35%) of the sample of 162 caregivers endorsed at-risk levels of PTSD. Individuals reporting higher levels of neurotic personality traits reported more PTSD symptoms (r = 0.53, p < 0.001). Perceptions that the patient death was unexpected partially explained the association of neuroticism with the intrusive re-experiencing PTSD symptoms (B = 0.45, p = 0.031). In contrast, emotional suppression partially explained the association of neuroticism with avoidance (B = 0.70, p = 0.010) and hyperarousal symptom clusters (B = 0.37, p = 0.041). Conclusions: Family vulnerability to PTSD after an ICU death can be conceptualized based on neurotic personality traits. Tendencies to view the patient's death as unexpected may contribute to intrusive thoughts and memories of the ICU experience. Individuals may avoid reminders and remain at heightened levels of arousal when they suppress their emotional experiences. Key Message: Family members who experience the death of a loved one following ICU treatment are vulnerable to PTSD symptoms. These reactions to ICU-related losses may be shaped by family members' personalities, expectations, and emotion regulation styles. Understanding these characteristics could inform family screening and intervention efforts in the ICU.

Causal Relationship Between Post-Traumatic Stress Disorder and Immune Cell Traits: A Mendelian Randomization Study.

Post-traumatic stress disorder (PTSD) is a debilitating psychological disorder that occurs after exposure to catastrophic-level experiences. Although alterations in immune function have been identified in individuals with PTSD, the causal relationship between the two remains unclear. To investigate the causal relationship between PTSD and immune function, we conducted the forward and backward two-sample Mendelian randomization (MR) analyses, based on summary-level genome-wide association studies (GWAS) data on PTSD and immune cell traits. For the forward MR analysis, PTSD was found to reduce the levels of CD62L- dendritic cell (DC) (beta=-0.254, FDR=0.01), CD86+ myeloid DC (beta=-0.238, FDR=0.014), CD62L- myeloid DC (beta=-0.26, FDR=0.01), CD62L- CD86+ myeloid DC absolute count (beta=-0.264, FDR=0.024), and CD62L- CD86+ myeloid DC (beta=-0.328, FDR=0.002). In contrast, PTSD was observed to increase the level of CD28- CD8dim T-cell absolute count (beta=0.27, FDR=0.029). For the backward MR analysis, the odds ratio (OR) for CD33 on CD33dim HLA DR+ CD11b- in relation to PTSD risk was found to be 1.045 (95% CI=1.021-1.069, FDR=0.008). The OR for FSC-A on HLA DR+ CD8br was 1.048 (95% CI=1.018-1.079, FDR=0.039) and for CCR2 on CD14- CD16+ monocyte was 1.059 (95% CI=1.027-1.092, FDR=0.008). No significant pleiotropy was detected in both forward and backward MR analyses. The bidirectional MR study shed light on the intricate interplay between immune function and PTSD. The identification of a bidirectional causal relationship between T cells and PTSD opens new avenues for considering innovative approaches to the prevention and early intervention of PTSD.