Using machine learning to increase access to and engagement with trauma-focused interventions for posttraumatic stress disorder.

BACKGROUND: Post-traumatic stress disorder (PTSD) poses a global public health challenge. Evidence-based psychotherapies (EBPs) for PTSD reduce symptoms and improve functioning (Forbes et al., Guilford Press, 2020, 3). However, a number of barriers to access and engagement with these interventions prevail. As a result, the use of EBPs in community settings remains disappointingly low (Charney et al., Psychological Trauma: Theory, Research, Practice, and Policy, 11, 2019, 793; Richards et al., Community Mental Health Journal, 53, 2017, 215), and not all patients who receive an EBP for PTSD benefit optimally (Asmundson et al., Cognitive Behaviour Therapy, 48, 2019, 1). Advancements in artificial intelligence (AI) have introduced new possibilities for increasinfg access to and quality of mental health interventions. AIMS: The present paper reviews key barriers to accessing and engaging in EBPs for PTSD, discusses current applications of AI in PTSD treatment and provides recommendations for future AI integrations aimed at reducing barriers to access and engagement. DISCUSSION: We propose that AI may be utilized to (1) assess treatment fidelity; (2) elucidate novel predictors of treatment dropout and outcomes; and (3) facilitate patient engagement with the tasks of therapy, including therapy practice. Potential avenues for technological advancements are also considered.

Longitudinal associations between interpersonal relationship functioning and posttraumatic stress disorder (PTSD) in recently traumatized individuals: differential findings by assessment method.

BACKGROUND: The role of interpersonal relationship functioning in trauma recovery is well-established. However, much of this research has been done with cross-sectional samples, often years after trauma exposure, using self-report methodology only, and is focused on intimate relationship adjustment. METHODS: The current study investigated the longitudinal associations between interpersonal (intimate and non-intimate) relationship functioning and clinician- and self-reported posttraumatic stress disorder (PTSD) symptoms in 151 recently (within the past 6 months) traumatized individuals. Participants were assessed at four time points over 1 year. RESULTS: Approximately 53% of the sample was diagnosed with PTSD at initial assessment, with declining rates of diagnostic status over time to 16%. Latent difference score (LDS) modeling revealed nonlinear declines in both clinician-assessed and self-reported PTSD symptom severity, with faster declines in earlier periods. Likewise, LDS models revealed nonlinear declines in negative (conflict) aspects of interpersonal relationship functioning, but linear declines in positive (support, depth) aspects. The relationship between PTSD and relationship functioning differed for clinician- and self-reported PTSD. Bivariate LDS modeling revealed significant cross-lagged effects from relationship conflict to clinician-assessed PTSD, and significant cross-lagged effects from self-reported PTSD to relationship conflict over time. CONCLUSIONS: These results highlight that the variability in prior results may be related to the method of assessing PTSD symptomatology and different relational constructs. Implications for theory and early intervention are discussed.

Social interactions in trauma disclosure: A multi-informant and multiconstruct investigation.

Research has established that social factors are integral to trauma recovery. Yet, there is relatively little data on the association between social interactions from different supports and posttraumatic stress disorder (PTSD) symptoms. Moreover, few studies have measured these factors from multiple informants. This paper examined social interactions from different sources (i.e., negative and positive reactions from a chosen close other [CO], family/friends, and general non-COs) and their association with PTSD symptoms using multi-informant reports of the social constructs (i.e., from the individual exposed to trauma [TI] and their CO). Participants (N = 104 dyads) were recruited from an urban center within 6 months of the TIs' exposure to a traumatic event. TIs were assessed using the Clinician-Administered PTSD Scale. TI self-report, t(97) = 2.58, p = .012, and CO collateral report of disapproval from family/friends, t(97) = 2.14, p = .035, and TI self-report of general disapproval, t(97) = 4.91, p < .001, emerged as significant predictors of PTSD symptoms when compared with other social constructs. Interventions that target family members' and friends' reactions to trauma survivors and societal discourse around trauma and reactions to trauma survivors are recommended. Clinical interventions that buffer against TIs' experiences of disapproval and guide COs on the provision of supportive responses are discussed.

Partner outcomes from an uncontrolled trial of Couple HOPES: A guided online couple intervention for posttraumatic stress disorder and relationship enhancement.

Posttraumatic stress disorder (PTSD) is associated with significant individual and relationship impairment for people with PTSD and their romantic partners. Conjoint treatments, such as cognitive behavioral conjoint therapy for PTSD (CBCT), are designed to address individual and relationship factors, yet significant barriers impede accessing in-person therapy. Couple HOPES (i.e., Helping Overcome PTSD and Enhance Satisfaction) is a coach-guided, online couple intervention for PTSD based on CBCT that was designed to address these barriers. Previous investigations have found preliminary efficacy of Couple HOPES for improving PTSD symptoms, relationship functioning, and some individual functioning domains for the partner with probable PTSD. However, no study to date has tested individual outcomes for romantic partners, which is needed to fully evaluate the intervention's promise. The current study tested these partner outcomes in a combined, uncontrolled sample of 27 couples. Intent-to-intervene analyses found significant improvements at postintervention in four of eight tested outcomes, including ineffective arguing, g = 0.74; anger, g = 0.32; perceived health, g = 0.67; and quality of life, g = 0.56. Depressive symptoms, generalized anxiety, alcohol misuse, and work functioning did not significantly change, gs = 0.17-0.42. Among participants who completed a 1-month follow-up assessment, generalized anxiety, g = 0.43, and perceived health, g = 0.73, significantly improved over follow-up, whereas anger, g = -0.48, lost gains previously made. Results were largely consistent in the completer sample. These findings show the potential of Couple HOPES to have broad benefits not only for individuals with probable PTSD but also for their romantic partners.

Sudden gains in PTSD symptoms and social functioning in cognitive processing therapy for posttraumatic stress disorder.

OBJECTIVE: Sudden gains (SGs) are rapid symptom improvements between two consecutive therapy sessions that predict treatment outcomes. This study investigated SGs in posttraumatic stress disorder (PTSD) symptoms, interpersonal relationship functioning, and social role functioning in Cognitive Processing Therapy (CPT). METHOD: Participants were 121 patients and 81 therapists involved in a parent randomized controlled hybrid implementation-effectiveness trial of CPT. Descriptive analyses examined the frequency and timing of different forms of SGs. Multilevel modeling examined the impact of the three SGs on outcomes. RESULTS: PTSD SGs occurred more often and at different sessions than SGs in facets of social functioning. Most individuals experienced only one form of SG and there were no significant clinical or demographic differences in those who had PTSD only SGs, social functioning only SGs, or both SGs. PTSD SGs and interpersonal relationship functioning SGs both predicted changes in PTSD symptoms and interpersonal difficulties over time, but not changes in social role functioning. SGs in social role functioning predicted all three forms of outcomes. CONCLUSIONS: The findings suggest that there are multiple forms of SGs in CPT beyond primary symptom changes that are predictive of patient outcomes. Clinicians should highlight various SGs that patients experience to further enhance outcomes.

Initiating Cognitive Processing Therapy (CPT) in Community Settings: A Qualitative Investigation of Therapist Decision-Making.

Various organizations have provided treatment guidelines intended to aid therapists in deciding how to treat posttraumatic stress disorder (PTSD). Yet evidence-based psychotherapies (EBPs) for PTSD in the community may be difficult to obtain. Although strides have been made to implement EBPs for PTSD in institutional settings such as the United States Veterans Affairs, community uptake remains low. Factors surrounding clients' decisions to enroll in EBPs have been identified in some settings; however less is known regarding trained therapists' decisions related to offering trauma-focused therapies or alternative treatment options. Thus, the aim of the current study was to examine therapist motivations to initiate CPT in community settings. The present study utilizes data from a larger investigation aiming to support the sustained implementation of Cognitive Processing Therapy (CPT) in community mental health treatment settings. Enrolled therapists participated in phone interviews discussing their opinions of CPT, preferred treatments for PTSD, and process in assessing appropriate PTSD treatments for clients. Semi-structured interviews (N = 29) were transcribed and analyzed using a directed content analysis approach. Several themes emerged regarding therapists' decision-making in selecting PTSD treatments. Therapist motivations to use EBPs for PTSD, primarily CPT, were identified at the client (e.g., perceived compatibility with client-level characteristics), therapist (e.g., time limitations), and clinic levels (e.g., leadership support). The results provide insight into the complex array of factors that affect sustainability of EBPs for PTSD in community settings and inform future dissemination of EBPs, including training efforts in community settings.

Results of the first randomized controlled trial of integrated cognitive-behavioral therapy for eating disorders and posttraumatic stress disorder.

BACKGROUND: Eating disorders (EDs) and posttraumatic stress disorder (PTSD) frequently co-occur and can share a functional relationship. The primary aim of this initial randomized controlled trial was to determine whether integrated cognitive-behavioral therapy (CBT) for co-occurring ED-PTSD was superior to standard CBT for ED in improving PTSD symptoms. Intervention safety and desirability, as well as the relative efficacy of the treatments in improving anxiety, depression, and ED symptomatology, were also examined. METHODS: Following a course of intensive ED treatment, individuals with ED-PTSD were recruited to participate and randomized to integrated CBT for ED-PTSD or standard CBT for ED. The sample consisted of 42 individuals with a range of ED diagnoses. Outcomes were assessed at end-of-treatment, 3-, and 6-month follow-up using interview and self-report measures. RESULTS: Mixed models revealed significant interactions of time and therapy condition on clinician-rated and self-reported PTSD symptom severity favoring Integrated CBT for ED-PTSD. Both treatments were associated with statistically significant improvements in PTSD, anxiety, and depression. Improvements were maintained at 3- and 6-month follow-up. There was good safety with both interventions, and satisfaction with both treatments was high. However, there was a stronger preference for integrated treatment. CONCLUSIONS: Integrating CBTs for PTSD and ED following intensive ED treatment is safe, desirable, and efficacious for improving PTSD symptoms. Future studies with larger sample sizes are needed to determine whether Integrated CBT for ED-PTSD provides benefits over standard CBT for ED with respect to ED outcomes.

Effectiveness of cognitive behavioral conjoint therapy for posttraumatic stress disorder (PTSD) in a U.S. Veterans Affairs PTSD clinic.

Cognitive behavioral conjoint therapy (CBCT) for posttraumatic stress disorder (PTSD) is a 15-session conjoint treatment for PTSD designed to improve PTSD symptoms and enhance intimate relationship functioning. Numerous studies of CBCT for PTSD document improvements in patient PTSD and comorbid symptoms, partner mental health, and relationship adjustment. However, little is known about its effectiveness in real-world clinical settings. Using an intention-to-treat sample of couples who participated in CBCT for PTSD in an outpatient U.S. Veterans Affairs (VA) PTSD clinic (N = 113), trajectories of session-by-session reports of veterans' PTSD symptoms and both partners' relationship happiness were examined. Across sessions, there were significant reductions in veteran-rated PTSD symptoms, d = -0.69, and significant increases in veteran- and partner-rated relationship happiness, ds = 0.36 and 0.35, respectively. Partner ratings of veterans' PTSD symptoms increased before significantly decreasing, d = -0.24. Secondary outcomes of veteran and partner relationship satisfaction, ds = 0.30 and 0.42, respectively; veteran and partner depressive symptoms, ds = -0.75 and -0.29, respectively; and partner accommodation of PTSD symptoms, d = -0.44, also significantly improved from pre- to posttreatment. The findings suggest that CBCT for PTSD was effective for decreasing PTSD and comorbid symptoms in veterans, as well as for improving relationship functioning and partners' mental health, among a sample of real-world couples seeking treatment in a VA PTSD specialty clinic.

Secondary individual outcomes following multicouple group therapy for posttraumatic stress disorder: An uncontrolled pilot study with military dyads.

Cognitive-behavioral conjoint therapy (CBCT) for posttraumatic stress disorder (PTSD) has demonstrated efficacy for improving PTSD and comorbid symptoms and relationship adjustment. To enhance treatment efficiency and scalability, we developed a 2-day, abbreviated, intensive, multicouple group version of CBCT for PTSD (AIM-CBCT for PTSD). Prior work demonstrated that AIM-CBCT for PTSD wasassociated with reductions in PTSD and comorbid symptoms in a sample of 24 post-9/11 active duty military or veteran couples who received the treatment in a retreat format over a single weekend. The current study investigated secondary outcomes regarding trauma-related cognitions, psychosocial impairment, and insomnia. For trauma-related cognitions, reductions were nonsignificant and small at 1-month follow-up, ds = -0.14 to -0.32. However, by 3-month follow-up, there were significant, medium effect size reductions in total trauma-related cognitions, d = -0.68, and negative views of self and others, ds = -0.64 and -0.57, respectively, relative to baseline. There was also a nonsignificant, small-to-medium effect-size reduction in self-blame, d = -0.43, p = .053, by 3-month follow-up. For psychosocial impairment, there were significant and medium-to-large and large effect size reductions by 1- and 3-month follow-ups, ds = -0.73 and -0.81, respectively. There were nonsignificant, small effect size reductions in insomnia at both 1- and 3-month follow-ups relative to baseline, ds = -0.30 and -0.34, respectively. These findings suggest that AIM-CBCT for PTSD is associated with reductions in maladaptive posttraumatic cognitions and psychosocial impairment but that adjunctive interventions may be needed to address insomnia.

Mechanisms and moderators of behavioural couples therapy for alcohol and substance use disorders: an updated review of the literature.

INTRODUCTION: Behavioural couples therapy (BCT) and alcohol behavioural couples therapy (ABCT) are couples-based interventions for substance use disorders (SUDs) that have been deemed a 'gold standard' treatment. Despite the substantial amount of promising research, there is a lack of research on the active components of treatment and treatment mechanisms and moderators. Since the most recent meta-analysis, a number of studies have been conducted that advance our understanding of the efficacy of BCT and ABCT. AIMS: The purpose of the present review was to provide an update on the current knowledge of these treatments and to investigate mediators and moderators of treatment. METHOD: A systematic search strategy of relevant databases from 2008 to 2021 identified 20 relevant articles that were coded for relevant information including study design, treatment, outcomes, as well as mechanisms and moderators. RESULTS: The results indicated that BCT and ABCT are successful in reducing alcohol and substance use for both male and female clients, dual problem couples, and for reducing post-traumatic stress symptoms and intimate partner violence. The reviewed studies discussed a number of treatment mechanisms, with the most studied mechanism being relationship functioning. Moderators included relationship functioning and patient gender. CONCLUSIONS: The results point to the need for additional research on active treatment components, mechanisms and moderators, in order to provide a more efficient and cost-effective treatment.

Trauma-focused cognitive behavioral therapy for children and youth in low and middle-income countries: A systematic review.

BACKGROUND: Trauma-focused cognitive behavioral therapy (TF-CBT) has been identified as a gold standard treatment for childhood posttraumatic stress disorder (PTSD) in Western countries. More recently, TF-CBT has emerged in the literature as an area of interest for children and youth affected by conflict and war in low- and middle-income countries (LMIC). METHODS: The present systematic review assesses the current evidence base of TF-CBT for children and youth in LMIC, with a focus on conflict-affected countries. A total of 143 articles were identified, of which 11 articles, representing 1,354 participants, met the proposed inclusion criteria. RESULTS: Results showed that the majority of the studies identified were conducted in low-resource community settings in East or Central Africa (n = 8). It was also found that cultural considerations were taken into account in TF-CBT delivery to meet the needs of local populations. Additionally, measures were translated and validated for local use. CONCLUSIONS: Findings of outcome data indicated that TF-CBT was effective in treating trauma-related symptoms and improving psychosocial functioning in children and adolescents in LMICs. Given the limited number of published literature available in this area, further studies are needed to conclude when and for whom trauma-focused interventions are most relevant.

The Effect of Therapeutic Alliance on Dropout in Cognitive Processing Therapy for Posttraumatic Stress Disorder.

A substantial number of individuals who undergo cognitive processing therapy (CPT) for posttraumatic stress disorder (PTSD) drop out before receiving a full course of treatment. Therapeutic alliance, defined as the working relationship between the therapist and client, is a dynamic process within therapy that may change over time. Research suggests that therapeutic alliance is associated with dropout in various treatments. However, no studies have yet examined the association between therapeutic alliance and dropout in CPT, and few studies have examined therapeutic alliance longitudinally over the course of treatment. Examining alliance in CPT through different methods may increase clinicians' understanding of how to tailor interventions to prevent treatment dropout. The present study examined the association between therapeutic alliance and treatment dropout among 169 participants in a randomized implementation effectiveness trial. In total, 33.1% of clients dropped out over the course of CPT, and nearly half of these individuals dropped out during the first six sessions. Continuous-time survival analysis results indicated that mean ratings of alliance significantly predicted treatment dropout, Wald χ2 (1, N = 167) = 4.08, Exp(ß) = .64, p = .043, whereas initial alliance, late alliance, and change in alliance over treatment did not. These findings suggest that overall therapeutic alliance is an important predictor of dropout from CPT.

A Closer Examination of Relational Outcomes from a Pilot Study of Abbreviated, Intensive, Multi-Couple Group Cognitive-Behavioral Conjoint Therapy for PTSD with Military Dyads.

Cognitive-behavioral conjoint therapy for posttraumatic stress disorder (CBCT for PTSD) is associated with improvements in patients' PTSD symptoms, partners' psychological distress, and relationship satisfaction. However, little is known about whether CBCT for PTSD is associated with changes in other relationship domains that have theoretical and clinical relevance to the relational context of PTSD. The current study is a secondary analysis of relational outcomes from an uncontrolled, within-group trial designed to examine whether an abbreviated, intensive, multi-couple group version of CBCT for PTSD (AIM-CBCT for PTSD) delivered in a retreat during a single weekend was associated with improvements in PTSD symptoms and relationship satisfaction. In this investigation, we examined whether AIM-CBCT for PTSD is also associated with improvements in ineffective arguing, supportive dyadic coping by partner, joint dyadic coping, and partners' accommodation of patients' PTSD symptoms. Participants were 24 couples who included a post-9/11 U.S. service member or veteran with PTSD. At 1- and 3-month follow-up, patients reported significant reductions in couples' ineffective arguing (ds = -.71 and -.78, respectively) and increases in supportive dyadic coping by partners relative to baseline (ds = .50 and .44, respectively). By 3-month follow-up, patients also reported significant increases in couples' joint dyadic coping (d = .57), and partners reported significant reductions in their accommodation of patients' PTSD symptoms (d = -.44). Findings suggest that AIM-CBCT for PTSD is associated with improvements in multiple relationship domains beyond relationship satisfaction but that these may be differentially salient for patients and partners.

La terapia cognitivo-conductual conjunta para el trastorno por estrés postraumático (TCC para el TEPT) está asociada con mejoras en los síntomas de TEPT de los pacientes, en el distrés psicológico de sus parejas y en la satisfacción con la relación. Sin embargo, se sabe poco acerca de si la TCC para el TEPT está asociada con cambios en otros aspectos de la relación que son de interés teórico y clínico para el contexto relacional del TEPT. El presente estudio es un análisis secundario de los resultados relacionales de un ensayo intragrupal no controlado diseñado para analizar si una versión grupal multipareja, intensiva y abreviada de la TCC para el TEPT (MIA-TCC para el TEPT) practicada en un retiro durante un solo fin de semana estuvo asociada con mejoras en los síntomas de TEPT y en la satisfacción con la relación. En esta investigación, analizamos si la MIA-TCC para el TEPT también está asociada con mejoras en las discusiones ineficaces, en el afrontamiento diádico comprensivo de la pareja del paciente, en el afrontamiento diádico conjunto y en la adaptación de las parejas de los pacientes a sus síntomas de TEPT. Los participantes fueron 24 parejas en las que había un miembro o veterano de las Fuerzas Armadas de los Estados Unidos que prestó servicio con posterioridad al 11/9 y que tenía TEPT. En el seguimiento del mes y de los tres meses, los pacientes informaron reducciones significativas de las discusiones ineficaces de la pareja (ds = -0.71 y -0.78, respectivamente) y aumentos del afrontamiento diádico comprensivo de sus parejas en relación con el momento basal (ds = 0.50 y 0.44, respectivamente). En el seguimiento de los tres meses, los pacientes también informaron aumentos significativos del afrontamiento diádico conjunto de las parejas (d = 0.57), y sus parejas informaron reducciones significativas de su adaptación a los síntomas de TEPT de los pacientes (d = -0.44). Los resultados sugieren que la MIA-TCC para el TEPT está asociada con mejoras en varios aspectos de las relaciones aparte del de la satisfacción en la pareja, pero que estos pueden tener una importancia diferente para los pacientes y sus parejas.

Integrating cognitive processing therapy for posttraumatic stress disorder with cognitive behavioral therapy for eating disorders in PROJECT RECOVER.

Posttraumatic stress disorder (PTSD) frequently co-occurs with eating disorders (ED) and is likely to be a powerful ED maintaining factor for a significant subgroup of individuals. The goal of PROJECT RECOVER is to develop and evaluate concurrent integrated treatment approaches for ED-PTSD to enable these individuals to recover from both their ED and PTSD. To date, we have trialed two approaches to concurrent/integrated treatment in PROJECT RECOVER: (1) concurrent delivery of Cognitive Processing Therapy (CPT) for PTSD to individuals receiving intensive ED treatment, and (2) delivery of a manualized individual cognitive-behavioral therapy (CBT) addressing both ED and PTSD (Integrated CBT for ED-PTSD) following a period of initial ED treatment. Interventions from both CBT for ED, and CPT for PTSD can be utilized and adapted to address the functional relationship between ED and PTSD, and promote full recovery from both disorders. Examples include integrating PTSD symptoms into the cognitive-behavioral individualized formulation of ED maintenance; integrating the ED into psychoeducation about PTSD maintenance; and identifying maladaptive beliefs that connect the ED to the trauma and/or PTSD. Emerging evidence suggests that CPT can be successfully integrated with CBT for ED.

Treating posttraumatic stress disorder across cultures: A systematic review of cultural adaptations of trauma-focused cognitive behavioral therapies.

OBJECTIVE: Although trauma-focused cognitive-behavioral therapies (CBTs) for posttraumatic stress disorder (PTSD) have been applied worldwide, the nature of how these Western-based interventions are applied in diverse settings has varied. This paper systematically reviewed the literature on how trauma-focused CBTs have been applied and adapted cross-culturally. METHOD: A systematic review of studies that discuss the process of cultural adaptation of trauma-focused CBTs. RESULTS: Seventeen papers were included and varied in the comprehensiveness of the adaptation process. Two studies stated that a theoretical framework was followed. Almost one-third of the studies did not report whether local stakeholders were involved in the process of application. Fifteen studies examined the efficacy of the adaptations and the results were positive, but the methodology and quality varied. CONCLUSION: There are inconsistencies in how trauma-focused CBTs are culturally adapted. A systematic approach to the transportation of such therapies would enable greater investigation into the necessity and efficacy of such adaptations.

Correction to: The Association Between Clinician and Perceived Organizational Factors with Early Fidelity to Cognitive Processing Therapy for Posttraumatic Stress Disorder in a Randomized Controlled Implementation Trial.

The article "The Association Between Clinician and Perceived Organizational Factors with Early Fidelity to Cognitive Processing Therapy for Posttraumatic Stress Disorder in a Randomized Controlled Implementation Trial", written by Iris Sijercic, Jeanine E. M. Lane, Cassidy A. Gutner, Candice M. Monson and Shannon Wiltsey Stirman, was originally published electronically on the publisher's internet portal (currently SpringerLink) on 28 August 2019 with open access. With the author(s)' decision to step back from Open Choice, the copyright of the article changed on 30 August 2019 to © Springer Science+Business Media, LLC, part of Springer Nature 2019 and the article is forthwith distributed under the terms of copyright.

The Association Between Clinician and Perceived Organizational Factors with Early Fidelity to Cognitive Processing Therapy for Posttraumatic Stress Disorder in a Randomized Controlled Implementation Trial.

A common metric for determining implementation success is the measurement of clinician adherence to, and competence in, delivering a psychotherapy. The present study examined clinician and organizational factors as predictors of early adherence and competence among 78 clinicians delivering cognitive processing therapy (CPT), an evidence-based psychotherapy (EBP) for posttraumatic stress disorder, in a randomized controlled implementation trial. Results indicated that clinicians' willingness to adopt an EBP if required to do so was significantly associated with early adherence and competence in CPT delivery. Level of clinician education was significantly associated with early competence in delivering CPT. Organizational factors did not predict early adherence or competence. Implications of the findings are discussed.

The International Society for Traumatic Stress Studies New Guidelines for the Prevention and Treatment of Posttraumatic Stress Disorder: Methodology and Development Process.

Over the last two decades, treatment guidelines have become major aids in the delivery of evidence-based care and improvement of clinical outcomes. The International Society for Traumatic Stress Studies (ISTSS) produced the first guidelines for the prevention and treatment of posttraumatic stress disorder (PTSD) in 2000 and published its latest recommendations, along with position papers on complex PTSD (CPTSD), in November 2018. A rigorous methodology was developed and followed; scoping questions were posed, systematic reviews were undertaken, and 361 randomized controlled trials were included according to the a priori agreed inclusion criteria. In total, 208 meta-analyses were conducted and used to generate 125 recommendations (101 for adults and 24 for children and adolescents) for specific prevention and treatment interventions, using an agreed definition of clinical importance and recommendation setting algorithm. There were eight strong, eight standard, five low effect, 26 emerging evidence, and 78 insufficient evidence to recommend recommendations. The inclusion of separate scoping questions on treatments for complex presentations of PTSD was considered but decided against due to definitional issues and the virtual absence of studies specifically designed to clearly answer possible scoping questions in this area. Narrative reviews were undertaken and position papers prepared (one for adults and one for children and adolescents) to consider the current issues around CPTSD and make recommendations to facilitate further research. This paper describes the methodology and results of the ISTSS Guideline process and considers the interpretation and implementation of the recommendations.

Spanish Abstracts by Asociación Chilena de Estrés Traumático (ACET) Nuevas guías para la prevención y el tratamiento del trastorno de estrés postraumático de la Sociedad Internacional de Estudios de Estrés Traumático: metodología y proceso de desarrollo GUIAS DE LA ISTSS PARA EL TEPT En las últimas dos décadas, las guías de tratamiento se han convertido en una ayuda importante para la prestación de atención basada en la evidencia y la mejora de los resultados clínicos. La Sociedad Internacional de Estudios de Estrés Traumático (ISTSS en sus siglas en inglés) produjo las primeras guías para la prevención y tratamiento del trastorno de estrés postraumático (TEPT) en 2000 y publicó sus últimas recomendaciones, junto con los documentos de posición sobre el TEPT complejo (TEPT-C), en noviembre de 2018. Se desarrolló y siguió una metodología rigurosa; se plantearon preguntas de alcance, se realizaron revisiones sistemáticas y se incluyeron 361 ensayos controlados aleatorizados de acuerdo con los criterios de inclusión acordados a priori. En total, se realizaron 208 metanálisis y fueron utilizados para generar 125 recomendaciones (101 para adultos y 24 para niños y adolescentes) para intervenciones específicas de prevención y tratamiento, utilizando una definición acordada de la importancia clínica y un algoritmo de configuración de recomendaciones. Hubo ocho estudios con pruebas sólidas, ocho como estándar, cinco con bajo efecto, 26 con evidencia emergente y 78 fueron evaluados como con evidencia insuficiente para ser recomendados en las recomendaciones. Se consideró la inclusión de preguntas de alcance separadas sobre tratamientos para presentaciones complejas de TEPT, pero se decidió en contra debido a cuestiones de definición y ausencia virtual de estudios diseñados específicamente para responder con claridad las posibles preguntas de alcance en esta área. Se realizaron revisiones narrativas y se prepararon documentos de posición (uno para adultos y otro para niños y adolescentes) para considerar los problemas actuales en torno al TEPT-C y hacer recomendaciones para facilitar la investigación adicional. Este documento describe la metodología y los resultados del proceso de la Guía de la ISTSS y considera la interpretación y la implementación de las recomendaciones.

Functional connectivity of hippocampal subregions in PTSD: relations with symptoms.

BACKGROUND: Posttraumatic stress disorder (PTSD) is associated with abnormal hippocampal activity; however, the functional connectivity (FC) of the hippocampus with other brain regions in PTSD and its relations with symptoms warrants further attention. We investigated subregional hippocampal FC in PTSD during a resting state compared with a trauma-exposed control (TEC) group. Based on extant research, we targeted the FCs of the anterior and posterior hippocampal subregions with the amygdala, medial prefrontal cortex (mPFC), and the posterior cingulate (PCC). METHODS: Resting-state functional magnetic resonance images were acquired from 11 individuals with PTSD and 13 trauma-exposed controls. Anterior and posterior hippocampal FC was compared between groups. Within the PTSD and TEC groups, subregional hippocampal FC was correlated with scores on the Clinician-Administered PTSD Scale (CAPS) at time of scan and 4 months post-scan. RESULTS: Those with PTSD had significantly greater FC compared with the TEC group between the left posterior hippocampus and the bilateral PCC (g's > .96). Direct contrasts of the Fisher z-transformed coefficients indicated that the correlations between CAPS scores 4 months post scan and the FC between the left hippocampal head and the right PCC (z = - 2.07, p = .039) as well as the FC between the right hippocampal tail and the right mPFC (z = - 2.19, p = .029) were significantly greater in the PTSD group compared to the TEC group. CONCLUSIONS: These results support between-group differences in posterior hippocampal FC and different relations with PTSD future symptoms, underscoring associations with the anterior and posterior hippocampus. These findings enrich our understanding of PTSD pathophysiology and provide support for future investigations of imaging biomarkers predictive of disease progression.