Post-traumatic stress disorder in women with eating disorders

Trauma Experiences Are Common in Anorexia Nervosa and Related to Eating Disorder Pathology but Do Not Influence Weight-Gain during the Start of Treatment

OBJECTIVE

The main characteristics of Anorexia Nervosa (AN) in adults are restriction of energy intake relative to requirements leading to significant weight loss, disturbed body image, and intense fear of becoming fat. Traumatic experiences (TE) have been reported as common, although less is known about the relationship with other symptoms in severe AN. We investigated the presence of TE, PTSD, and the relation between TE, eating disorder (ED) symptoms, and other symptoms in moderate to severe AN (n = 97) at admission to inpatient weight-restoration treatment. All patients were enrolled in the Prospective Longitudinal all-comer inclusion study on Eating Disorders (PROLED).

METHODS

TE were assessed using the Post-traumatic stress disorder checklist, Civilian version (PCL-C), and ED symptoms using the Eating Disorder Examination Questionnaire (EDE-Q); depressive symptoms were assessed using the Major Depression Inventory (MDI), and the presence of Post-traumatic Stress Disorder (PTSD) was diagnosed according to ICD-10 criteria.

RESULTS

The mean score on PCL-C was high (mean 44.6 SD 14.7), with 51% having a PCL-C score at or above 44 (n = 49, suggested cut-off for PTSD), although only one individual was clinically diagnosed with PTSD. There was a positive correlation between baseline scores of PCL-C and EDE-Q-global score (r = 0.43; p < 0.01) as well as of PCL-C and all EDE-Q subscores. None of the included patients were admitted for treatment of TE/PTSD during the first 8 weeks of treatment.

CONCLUSIONS

In a group of patients with moderate to severe AN, TE were common, and scores were high, although only one had a diagnosis of PTSD. TE were related to ED symptoms at baseline, but this association diminished during the weight restoration treatment.

Ketamine as a Treatment for Anorexia Nervosa: A Narrative Review

Anorexia nervosa (AN) is a highly complex disorder to treat, especially in severe and enduring cases. Whilst the precise aetiology of the disorder is uncertain, malnutrition and weight loss can contribute to reductions in grey and white matter of the brain, impairments in neuroplasticity and neurogenesis and difficulties with cognitive flexibility, memory and learning. Depression is highly comorbid in AN and may be a barrier to recovery. However, traditional antidepressants are often ineffective in alleviating depressive symptoms in underweight patients with AN. There is an urgent need for new treatment approaches for AN. This review gives a conceptual overview for the treatment of AN with ketamine. Ketamine has rapid antidepressant effects, which are hypothesised to occur via increases in glutamate, with sequelae including increased neuroplasticity, neurogenesis and synaptogenesis. This article provides an overview of the use of ketamine for common psychiatric comorbidities of AN and discusses particular safety concerns and side effects. Potential avenues for future research and specific methodological considerations are explored. Overall, there appears to be ample theoretical background, via several potential mechanisms, that warrant the exploration of ketamine as a treatment for adults with AN.

Comparing the clinical presentation of eating disorder patients with and without trauma history and/or comorbid PTSD

This study examined whether clinical characteristics among patients presenting to residential eating disorder (ED) treatment differed according to patients' trauma history and current PTSD diagnostic status. Participants (699 girls and women) completed surveys at treatment onset. One-way analysis of covariance (ANCOVA) tests assessed cross-sectional differences between three groups of patients: those reporting no trauma history (No Trauma, n = 185), those with trauma history but without PTSD (Trauma, n = 263), and those with current PTSD (PTSD, n = 251). Relative to the No Trauma group, the combined Trauma and PTSD groups reported greater ED symptoms, anxiety and depressive symptoms, experiential avoidance, anxiety sensitivity, and lower mindfulness. The PTSD group reported greater ED, anxiety, and depressive symptoms, greater anxiety sensitivity, and lower mindfulness, relative to the Trauma group. In sum, ED patients with any history of trauma experienced more symptoms and other psychopathology relative to patients who did not report trauma history. Among patients reporting trauma, those with current PTSD experienced even greater symptom severity. Interventions focused on improving emotional functioning could be especially beneficial for ED patients with trauma histories.

Childhood maltreatment and eating disorder pathology: a systematic review and dose-response meta-analysis

BACKGROUND

Meta-analyses have established a high prevalence of childhood maltreatment (CM) in patients with eating disorders (EDs) relative to the general population. Whether the prevalence of CM in EDs is also high relative to that in other mental disorders has not yet been established through meta-analyses nor to what extent CM affects defining features of EDs, such as number of binge/purge episodes or age at onset. Our aim is to provide meta-analyses on the associations between exposure to CM (i.e. emotional, physical and sexual abuse) on the occurrence of all types of EDs and its defining features.

METHOD

Systematic review and meta-analyses. Databases were searched until 4 June 2016.

RESULTS

CM prevalence was high in each type of ED (total N = 13 059, prevalence rates 21-59%) relative to healthy (N = 15 092, prevalence rates 1-35%) and psychiatric (N = 7736, prevalence rates 5-46%) control groups. ED patients reporting CM were more likely to be diagnosed with a co-morbid psychiatric disorder [odds ratios (ORs) range 1.41-2.46, p < 0.05] and to be suicidal (OR 2.07, p < 0.001) relative to ED subjects who were not exposed to CM. ED subjects exposed to CM also reported an earlier age at ED onset [effect size (Hedges' g) = -0.32, p < 0.05], to suffer a more severe form of the illness (g = 0.29, p < 0.05), and to binge-purge (g = 0.31, p < 0.001) more often compared to ED patients who did not report any CM.

CONCLUSION

CM, regardless of type, is associated with the presence of all types of ED and with severity parameters that characterize these illnesses in a dose dependent manner.

The relationship between eating disorders and sexual trauma

Research aimed at understanding the causes and comorbidities of eating disorders (ED) identifies sexual trauma as one potential pathway to the development and maintenance of eating disorders. Based on current literature, there are two main etiological pathways between sexual trauma and ED-body perceptions and psychological difficulties. However, previously published reviews on this topic are outdated and have not yielded consistent findings. Therefore, authors completed a literature review covering years 2004-2014 to examine the relationship between sexual trauma and ED according to both proposed pathway models. Authors utilized PubMed, GoogleScholar, and PsychINFO as search engines. Search terms included "sexual assault", "sexual abuse", "sexual trauma", and "rape" in conjunction with relevant ED terminology. Thirty-two studies met inclusion criteria for this review. Current data indicate an increased prevalence of sexual trauma for individuals with ED. Although limited, recent evidence suggests that sexual trauma precedes and contributes to the development of ED. Existing literature indicates that the body perceptions pathway may impact ED through body dissatisfaction, shame, sexual dysfunction, and fear of future sexual trauma. The psychological difficulties pathway indicates a link between ED and the desire to cope with the failure of the average expected environment, psychological diagnoses, the need for control, and the regulation of emotions. However, further research is needed to assess the potential causal role that sexual trauma may play in the etiology of ED.

Out of my real body: cognitive neuroscience meets eating disorders

Clinical psychology is starting to explain eating disorders (ED) as the outcome of the interaction among cognitive, socio-emotional and interpersonal elements. In particular two influential models—the revised cognitive-interpersonal maintenance model and the transdiagnostic cognitive behavioral theory—identified possible key predisposing and maintaining factors. These models, even if very influential and able to provide clear suggestions for therapy, still are not able to provide answers to several critical questions: why do not all the individuals with obsessive compulsive features, anxious avoidance or with a dysfunctional scheme for self-evaluation develop an ED? What is the role of the body experience in the etiology of these disorders? In this paper we suggest that the path to a meaningful answer requires the integration of these models with the recent outcomes of cognitive neuroscience. First, our bodily representations are not just a way to map an external space but the main tool we use to generate meaning, organize our experience, and shape our social identity. In particular, we will argue that our bodily experience evolves over time by integrating six different representations of the body characterized by specific pathologies—body schema (phantom limb), spatial body (unilateral hemi-neglect), active body (alien hand syndrome), personal body (autoscopic phenomena), objectified body (xenomelia) and body image (body dysmorphia). Second, these representations include either schematic (allocentric) or perceptual (egocentric) contents that interact within the working memory of the individual through the alignment between the retrieved contents from long-term memory and the ongoing egocentric contents from perception. In this view EDs may be the outcome of an impairment in the ability of updating a negative body representation stored in autobiographical memory (allocentric) with real-time sensorimotor and proprioceptive data (egocentric).

Posttraumatic stress disorder in anorexia nervosa

OBJECTIVES

Comorbidity among eating disorders, traumatic events, and posttraumatic stress disorder (PTSD) has been reported in several studies. The main objectives of this study were to describe the nature of traumatic events experienced and to explore the relationship between PTSD and anorexia nervosa (AN) in a sample of women.

METHODS

Eight hundred twenty-four participants from the National Institutes of Health-funded Genetics of Anorexia Nervosa Collaborative Study were assessed for eating disorders, PTSD, and personality characteristics.

RESULTS

From a final sample of 753 women with AN, 13.7% (n = 103) met Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria for PTSD. The sample mean age was 29.5 (standard deviation = 11.1) years. In pairwise comparisons across AN subtypes, the odds of having a PTSD diagnosis were significantly lower in individuals with restricting AN than individuals with purging AN without binge eating (odds ratio = 0.49, 95% confidence interval = 0.30-0.80). Most participants with PTSD reported the first traumatic event before the onset of AN (64.1%, n = 66). The most common traumatic events reported by those with a PTSD diagnosis were sexually related traumas during childhood (40.8%) and during adulthood (35.0%).

CONCLUSIONS

AN and PTSD do co-occur, and traumatic events tend to occur before the onset of AN. Clinically, these results underscore the importance of assessing trauma history and PTSD in individuals with AN and raise the question of whether specific modifications or augmentations to standard treatment for AN should be considered in a subgroup to address PTSD-related psychopathology.

Threshold and subthreshold post-traumatic stress disorder in bulimic patients: prevalences and clinical correlates

OBJECTIVE

Post-traumatic stress disorder (PTSD) is believed to impact the clinical presentation and treatment response in bulimia nervosa (BN), but available data do not clarify the clinical implications of subthreshold forms of PTSD, believed to affect a sizable proportion of bulimic women.

METHOD

In 78 women with BN and 61 women who ate normally, we assessed lifetime rates of threshold and subthreshold PTSD, and examined clinical correlates.

RESULTS

Among bulimic women, rate of threshold PTSD was 17.9% and rate of a formally-defined, subthreshold PTSD syndrome was 41.0%. Bulimic women with subthreshold PTSD did not differ from women with threshold PTSD on any clinical indices (except generalized anxiety disorder) and both groups with a PTSD-spectrum syndrome displayed worse psychiatric symptoms than did bulimic women without PTSD symptoms.

DISCUSSION

Threshold and subthreshold variants of PTSD occur substantially more frequently among bulimic women than they do among normal-eater women. Intriguingly, bulimic women with subthreshold PTSD appear to be at similar risk for psychiatric morbidity as are those with threshold PTSD. The preceding suggests that formal, categorical concepts of PTSD may not fully reflect important trauma correlates seen in women with BN.

Post-traumatic stress disorder in serious accidental injury: 3-year follow-up study

BACKGROUND

Long-term data on post-traumatic stress disorder (PTSD) following accidents are scarce.

AIMS

To assess and predict PTSD in people 3 years after severe accidental injury.

METHOD

Severely injured patients were recruited consecutively from the intensive care unit (n=121) and assessed within 1 month of the trauma. Follow-up interviews were conducted 6 months, 12 months and 36 months later; 90 patients participated in all four interviews. Symptoms were assessed using the Clinician-Administered PTSD Scale.

RESULTS

Post-traumatic stress disorder was diagnosed in 6% of patients 2 weeks after the accident, in 2% after 1 year and in 4% after 3 years. Robust predictors of later PTSD symptom level were intrusive symptoms shortly after the accident and biographical risk factors. There were individual changes over time between the categories PTSD, sub-threshold PTSD and no PTSD. Whereas PTSD symptom severity was low or decreased for most of the patients, some of them showed an increase or a delayed onset. Patients with persisting PTSD symptoms at 6 months and patients with delayed onset of symptoms are at risk of long-term PTSD.

CONCLUSIONS

The prevalence of PTSD was low over the whole period of 3 years.