Peritraumatic Dissociative Experiences Research Articles

EPA-1315 - Role of peritraumatic and persistent dissociation in development of posttraumatic stress disorder

Acute stress disorder (ASD) and its predictivity in development of posttraumatic stress disorder (PTSD) has been researched extensively so far. Symptoms of peritraumatic dissociation (PD) has been proven as a predictive factor for PTSD, but recent studies have shown greater need for distinction of peritraumatic versus persistent dissociation. Symptoms of PD and of persistent dissociation in subjects diagnosed with ASD will be predictive of PTSD symptoms. To investigate the development of ASD symptoms, symptoms of PD and of persistent dissociation within the first month of traumatic event (initial) and six months later (follow-up) in victims of traffic accidents. At the moment, 25 subject were included in initial phase, and 18 at follow-up. Subject were interwieved, Mini International Neuropsychiatric Interview, Acute Stress Disorder Structured Interview, Clinician Administered PTSD Scale, The Dissociative Experience Scale, and The Peritraumatic Dissociative Experiences Questionnaire were administered. 10 subjects were diagnosed with PTSD in the follow-up. Preliminary results support for a greater risk for PTSD when dissociative symptoms are present, of PD or persistent dissociation. Greater distinction of dissociative symptoms in the acute trauma phase should be taken into account when diagnosing ASD. It could be eventually helpfull with identifying individuals at risk for PTSD.

Frequency and predictors of post-traumatic stress disorder after stroke: A pilot study

ObjectiveFew data exist about post-stroke symptoms of post-traumatic stress disorder (sPTSD) and none on DSM-IV formally diagnosed PTSD (fdPTSD). We investigated the frequency and predictors of sPTSD and fdPTSD 1–6months after a nondisabling ischemic stroke (IS) or transient ischemic attack (TIA). MethodsConsecutive patients were assessed for sPTSD (Impact of Events Scale-Revised, IES-R, significant if >30) and fdPTSD (PTSD-Interview). We recorded sociodemographic factors, stroke features (including severity of the initial deficit, persistent disability, localization), associated mood changes, peritraumatic reactions during the stroke (Peritraumatic Distress Inventory (PDI) for fear and distress, Peritraumatic Dissociative Experience Questionnaire for cognitive appraisal), and psychiatric history. Patients with sPTSD and fdPTSD were compared to patients with IES-R<30. ResultsAmong the 40 patients (65% male, mean age 52years) studied post-IS (n=30; mean initial NIHSS 4) or TIA, 25% had sPTSD, including 10% with fdPTSD. sPTSD was more frequent in women (p=0.02), patients with intense peritraumatic reactions especially on PDI (p=0.001) or identified prior depression and anxiety (p=0.007). No other demographic factors or stroke characteristics were associated with sPTSD. Forty percent of sPTSD patients were depressed versus none of the controls (p<0.002). All fdPTSD patients had ≥3 prior psychiatric co-morbidities. ConclusionsAfter nondisabling IS or TIA, sPTSD is frequent, with fdPTSD for 10%. Patients with intense peritraumatic reactions, women, and those with prior psychiatric morbidity, require particular attention to detect sPTSD.

The Effect of Comorbid Depression and Sexual Abuse during Childhood on Glucocorticoid and Mineralocorticoid Receptor Sensitivity of Patients with Post-Traumatic Stress Disorder

Evidence shows that Posttraumatic Stress Disorder (PTSD) patients have low basal cortisol levels and Glucocorticoid-Receptor (GR) super sensitivity following a pharmacological challenge. These findings, however, are controversial, partially due to the presence of confounding factors such as comorbidity with Major Depressive Disorder (MDD) and childhood trauma. In the present study, salivary cortisol levels of victims of violence with and without PTSD were assessed following a Prednisolone Suppression Test (PST), controlling for the presence of MDD and sexual abuse during childhood. The sample was nested in an epidemiological study performed in the city of Sao Paulo. Subjects with a diagnosis of PTSD (PTSD+) and a matched control group (PTSD-) were submitted to the Structured Clinical Interview for DSM-IV, after which the Early Trauma Inventory (ETI), Clinician-Administered PTSD Scale (CAPS), Beck Depression (BDI) and Anxiety Inventory (BAI) and Peri-traumatic Dissociative Experiences Questionnaire (PDEQ) were used. A saliva sample was collected before and after 5 mg of prednisolone was administered at 10 PM. Of the 34 PTSD+ patients, 19 had MDD comorbidity (PTSD+MDD). The cortisol curve of PTSD+MDD patients was similar to that of controls, and both were higher than that of PTSD patients. Cortisol levels after awakening after prednisolone administration were negatively correlated with the CAPS, BAI, and sexual abuse score on the ETI. These findings not only reinforce the idea that PTSD patients have GR super sensitivity, they also reveal that factors such as sexual abuse during childhood and comorbid MDD should be considered when studying HPA-axis reactivity, given their significant impact on the stress response.

PERILOSS DISSOCIATION, SYMPTOM SEVERITY, AND TREATMENT RESPONSE IN COMPLICATED GRIEF

Complicated grief (CG) is a bereavement-specific syndrome characterized by traumatic and separation distress lasting over 6 months. Little is known about the role of dissociation experienced during or immediately after the loss of a loved one (i.e., periloss dissociation [PLD]) in CG. The present study aimed to examine the psychometric properties of the PLD-adapted Peritraumatic Dissociative Experiences Questionnaire and its association with symptom severity, treatment response, and drop-out rate. PLD data collected as part of a randomized controlled trial of two loss-focused psychotherapy approaches for CG were examined. Treatment-seeking individuals with primary CG (n = 193) were assessed for PLD at the initial visit, 95 of whom were randomized and completed at least one treatment session. The PLD-adapted Peritraumatic Dissociative Experiences Questionnaire was found to be internally consistent (α = 0.91) with good convergent and divergent validity. After controlling for age, gender, time since loss, and current comorbid psychiatric diagnosis, self-reported PLD was associated with greater CG symptom severity (P < .01). However, contrary to our hypotheses, after controlling for age, baseline symptoms severity, psychiatric comorbidity, and treatment arm, PLD was predictive of better treatment response (P < .05) and lower study discontinuation (P < .01). PLD may be useful in identifying individuals at risk for CG and those who might respond to psychotherapy. Additional research should investigate the relationship of PLD with treatment outcome for different treatment approaches, and whether PLD prospectively predicts the development of CG.

Negative emotions, childbirth pain, perinatal dissociation and self-efficacy as predictors of postpartum posttraumatic stress symptoms

Objective: The aim of the study was to assess the contribution of negative emotions, childbirth pain, perinatal dissociation, and feelings of self-efficacy to the development of posttraumatic stress disorder (PTSD) symptoms following childbirth. Patients and methods: A prospective longitudinal study was carried out on 98 women from the south of France area. Four questionnaires were completed at 2–3 days postpartum: the Peritraumatic Emotions List (PEL), the French version of the McGill Pain Questionnaire, the Peritraumatic Dissociative Experience Questionnaire (PDEQ) and the Childbirth Self-efficacy Inventory (CBSEI). The Impact of Event Scale-Revised (IES-R) assessing posttraumatic stress symptoms was also completed 6 weeks after delivery. Results: Pain and negative emotions were significant predictors of the intensity of posttraumatic stress symptoms at 6 weeks postpartum. Although higher levels of pain contribute to increased PSTD symptoms, and higher negative emotion also contributes to PTSD symptoms, the effect of pain on PSTD is stronger when there are high levels of negative emotion. Discussion and conclusion: Our findings highlight that pain, negative emotions and their interaction were significant predictors of posttraumatic stress symptoms and confirm the importance of developing more specific treatments focusing on support and prevention.

The structure of peritraumatic dissociation: A cross validation in clinical and nonclinical samples

Empirical data have challenged the unidimensionality of the Peritraumatic Dissociative Experiences Questionnaire (PDEQ), a widely used measure for peritraumatic dissociation. The aim of this study was to assess the factor structure of the PDEQ in 3 trauma-exposed samples: (a) trauma-exposed police officers (N = 219); (b) trauma-exposed civilians (N = 158); and (c) treatment-seeking trauma-exposed civilians (N = 185). Confirmatory factor analyses using measurement invariance testing supported a 2-factor structure (CFIs .96-.98; RMSEAs .07-.09), but excluded 2 of the original items. Factor 1 was termed Altered Awareness; Factor 2 was termed Derealization. Altered Awareness reflected disturbances in information processing during the traumatic event, whereas Derealization reflected distortions in perception. Hierarchical linear regression analysis showed that Derealization predicted posttraumatic stress severity at 26.5 weeks follow-up only in the sample of police officers (R(2) = .45). Future longitudinal research shortly following trauma is required to elucidate causality and underlying mechanisms of peritraumatic dissociation, which may contribute to the development of more accurate screening strategies, as well as more effective strategies for prevention and early intervention.

Impact of an intensive care unit diary on psychological distress in patients and relatives*

To assess the impact of an intensive care unit diary on the psychological well-being of patients and relatives 3 and 12 months after intensive care unit discharge. Prospective single-center study with an intervention period between two control periods. Medical-surgical intensive care unit in a 460-bed tertiary hospital. Consecutive patients from May 2008 to November 2009 and their relatives. Study inclusion occurred after the fourth day in the intensive care unit. A diary written by both the patient's relatives and the intensive care unit staff. Patients and relatives completed the Hospital Anxiety and Depression Scale and Peritraumatic Dissociative Experiences Questionnaire 3 months after intensive care unit discharge, and completed the Impact of Events Scale assessing posttraumatic stress-related symptoms 12 months after intensive care unit discharge. Of the 378 patients admitted during the study period, 143 were included (48 in the prediary period, 49 in the diary period, and 46 in the postdiary period). In relatives, severe posttraumatic stress-related symptoms after 12 months varied significantly across periods (prediary 80%, diary 31.7%, postdiary 67.6%; p<.0001). Similar results were obtained in the posttraumatic stress-related symptom score after 12 months in the surviving patients (prediary 34.6 ± 15.9, diary 21 ± 12.2, and postdiary 29.8 ± 15.9; p = .02). The intensive care unit diary significantly affected posttraumatic stress-related symptoms in relatives and surviving patients 12 months after intensive care unit discharge.

Peritraumatic Dissociation After Loss

This study investigated the factor-structure of retrospectively assessed peritraumatic dissociation in the moments surrounding the death of a loved one and concurrent and prospective associations of such peritraumatic dissociation with loss-related emotional distress. Data were available from 168 people, bereaved in the preceding year. They completed the Peritraumatic Dissociative Experiences Questionnaire with their loss as the index event, together with measures of prolonged grief disorder, depression, and posttraumatic stress disorder; 117 completed symptom measures again 1 year later. Confirmatory factor analysis comparing the fit of four competing models showed that the eight-item one-factor model found in the first study using the Peritraumatic Dissociative Experiences Questionnaire provided the best fit to the data. Peritraumatic dissociation predicted concurrent and prospective symptom levels even when controlling for neuroticism and demographic and loss-related variables.

Prior Peritraumatic Dissociative Experiences Affect Autonomic Reactivity During Trauma Recall

To better understand the psychophysiological correlates of peritraumatic dissociation (PD), the present study examined the relationship between reports of prior PD and sympathetic and parasympathetic functioning in response to a laboratory stress paradigm in 39 traumatized female undergraduates. Participants were asked to talk about their most distressing traumatizing experience while continuous measures of heart rate, pre-ejection period, and respiratory sinus arrhythmia were taken. Overall, high dissociators had significantly larger increases in heart rate and larger decreases in pre-ejection period and respiratory sinus arrhythmia during trauma recall. In opposition to our hypothesis, these results suggest that female trauma victims reporting high levels of PD during a prior trauma may be more reactive to traumatic reminders than victims who report lower levels of PD.

Posttraumatic Stress Disorder and psychological distress following medical and surgical abortion

Objective: Abortion can be a difficult event to cope with and can lead to the development of psychological disturbance. The aim of this prospective and longitudinal study was to assess and to predict Posttraumatic Stress Disorder (PTSD) symptoms following abortion. Moreover, this study aimed to assess whether the type of abortion had an impact on women’s experience. Method: Eighty-six women were approached a few hours after the abortion and then 6 weeks later. Several questionnaires were completed: the Impact of Event Scale Revised (IES-R), the Multidimensional Scale of Social Support (MSPSS), the Peritraumatic Dissociative Experience Questionnaire (PDEQ), the Peritraumatic Emotions List (PEL), the Hospital Anxiety and Depression Scale (HADS), the Perinatal Grief Scale (PGS) and the Texas Grief Inventory (TGI). Results: Six weeks after the abortion, 38% of women reported a potential PTSD and a significant decrease of the anxious symptomatology was also highlighted. Peritraumatic dissociation and peritraumatic emotions were the main predictors of the intensity of post-abortum PTSD symptoms. Compared to surgical abortion, medical abortion was associated with increasing the risk of developing a possible PTSD. Conclusion: By providing evidence on some of the main risk factors, this study highlights the need for psychological support for women and strategies of prevention to be developed.

Dissociative experience during childbirth

Objective: A dissociative experience refers to phenomena such as depersonalization, derealization, amnesia, out of body experience, altered time perception and body image. The aim of this study was to assess dissociative experience during childbirth and the possible related variables. Method: A total of 328 women, up to 72 hours postpartum, completed the peritraumatic dissociative experience questionnaire (PDEQ), the socio-demographic and obstetrical questionnaire, the pain numeric rating scale, the Trauma History Questionnaire and an SCID-I for traumatic events. Results: A total of 11.3% of the sample experienced significant dissociation. In particular, symptoms like a sensation of time changes during the event/things seemed to be happening in slow motion, not being aware of things that happened, and disorientation. A traumatic childbirth, previous trauma, obstetrical complications, forceps, prematurity, complications with the baby, dissatisfaction with the maternity care, unemployment, high score pain during labor and years of schooling were the factors considered. Conclusion: Dissociative experiences can occur during childbirth.

EEG Complexity and Attentional Processes Related to Dissociative States

Reported findings indicate that attentional narrowing is related to decreased complexity and increased inhibition of neural assemblies. These findings suggest that analysis of electroencephalogram (EEG) complexity could present a useful method for research of attentional changes related to dissociation. To examine this model we used a case study to test the two hypotheses: (1) that successful anticonvulsant medication would result in dissociative symptom alleviation, improvement of inhibitory neural functions, and decreased EEG complexity, and (2) that cognitive conflict, related to aversive events in the patient's past experience, during reliving of a dissociative state would lead to greater allocation of attention and decreased EEG complexity. Three EEG studies recorded in the eyes closed non-drowsy state were performed: (1) at baseline, (2) post-induction of dissociative state, and (3) post-anticonvulsant medication following induction of dissociative state. A dissociative state was achieved following an interview regarding the patient's aversive past experiences through use of the Peritraumatic Dissociative Experiences Questionnaire (PDEQ). The patient's level of dissociation was measured using the Dissociative Experiences Scale-II (DES-II). The PDEQ interview and DES-II assessment were also used one hour following the oral consumption of an anticonvulsant medication (clonazepam 2mg). Analysis of the data revealed that complexity values (PD2) are significantly lower following the oral consumption of clonazepam (2mg) in the majority of EEG channels. Additionally, complexity during the reliving of a dissociative state was statistically significantly lower than both the baseline and post-medication conditions in all but two EEG channels. Results of the case study suggest that changes in attentional processes linked to dissociation are related to: (1) decreased complexity when attention is extremely focused because of attentional narrowing to the disturbing past experience, and (2) increased complexity during ordinary experiences when attention is less narrowly focused.

Co-morbid depression and sexual abuse during childhood as confounding factors in the analysis of glucocorticoid-receptor supersensitivity in patients with posttraumatic stress disorder

INTRODUCTION Evidence shows that posttraumatic stress disorder (PTSD) patients have low basal cortisol levels and glucocorticoid-receptor (GR) supersensitivity following a pharmacological challenge. These findings, however, are controversial, partially due to the presence of confounding factors, such as co-morbidity with major depressive disorder (MDD) and childhood trauma. In the present study, salivary cortisol levels of victims of violence with and without PTSD were assessed following a prednisolone suppression test (PST), controlling for the presence of MDD and sexual abuse during childhood. METHOD The sample was nested in an epidemiological study performed in Sao Paulo City. The subjects with a diagnosis of PTSD (PTSD+) and a matched control group (PTSD-) were submitted to SCID-I; after which Early Trauma Inventory (ETI), Clinician-Administered PTSD Scale (CAPS), Beck Depression (BDI) and Anxiety Inventory (BAI) and the Peritraumatic Dissociative Experiences Questionnaire (PDEQ) were used. Saliva samples were collected before and after 1,5 mg of prednisolone, administered at 10 PM. Discussion These results confirm previous findings that PTSD patients have lower cortisol levels by showing a blunted response to exogenous GC), which is likely due to increased GR responsiveness. Separating the patients with PTSD alone from those with co-morbid MDD showed that hypocortisolism is specific to PTSD, and the presence of MDD counterbalances PTSD-related dysfunction to “normalize” the curve of patients with both diagnoses. The presence of sexual abuse during childhood correlated negatively with lower the salivary cortisol concentrations. Early sexual abuse, but not other types of trauma such as general, physical, and psychological traumas, was correlated with cortisol dysfunction. The presence of sexual abuse during childhood is a potent risk factor for developing an Axis I diagnosis during adulthood [1]. Some authors find a correlation between early abuse and lower cortisol concentrations after a psychosocial stressor test and pharmacological challenge, an effect that is independent of the presence of an Axis I diagnostics [2-3]. The question raised here is whether the presence of severe sexual abuse during childhood and HPA axis response to stress is an endophenotype. Another aspect to consider is whether subjects with a particular type of HPA axis response are at a greater risk for PTSD development after a severe adulthood stressor. PTSD related to increased GR supersensitivity should be investigated further. Research also should address whether the presence of different endophenotypes depends on the timing of the trauma (considering epigenetic phenomenon). Interestingly, we did not find differences between controls and PTSD patients. Despite the fact that 40% of our sample had PTSD+MDD, the presence of PTSD symptoms had a predominant effect on HPA axis by lowering cortisol concentrations, as demonstrated by our comparison of PTSD+ (either with or without MDD) with controls.

Gravidade psicopatológica em mulheres vítimas de violência doméstica

OBJETIVO: Avaliar a presença de sintomas psicopatológicos em mulheres vítimas de violência doméstica (VD) que procuraram uma delegacia de defesa da mulher. MÉTODO: Foram avaliadas mulheres com idade entre 20 e 50 anos que deram entrada em uma delegacia da mulher com queixa de VD. Durante a entrevista, todas foram submetidas ao Relatório de Indicadores Sociais e preencheram os seguintes instrumentos de autoaplicação: Inventário de Depressão de Beck, Inventário de Ansiedade de Beck, Post-Traumatic Stress Disorder Checklist - Civilian Version e o Questionário de Experiências Dissociativas Peritraumáticas (todos em língua portuguesa). Foram usadas notas de corte a partir dos estudos de validação desses instrumentos para categorizar indivíduos com alta probabilidade de apresentar transtorno depressivo maior, transtorno de ansiedade, transtorno de estresse pós-traumático, ou alta/baixa dissociação peritraumática. RESULTADOS: Foram avaliadas 17 mulheres com idade média de 34,7±7,7 anos. O tempo médio de duração da violência foi de 9,1±8,7 anos. Do total de mulheres, 53% eram vítimas de agressão excessiva e 84% eram ameaçadas de morte pelo companheiro; em 71% dos casos, os companheiros eram usuários de drogas. Além disso, 53% das mulheres afirmaram ter sofrido VD na infância. Do total da amostra, 89% tiveram grande probabilidade de apresentar transtorno depressivo maior, 94% transtorno de ansiedade, 76% transtorno de estresse pós-traumático e 88% apresentaram elevados níveis de experiências dissociativas peritraumáticas. CONCLUSÃO: As vítimas de VD que dão entrada em delegacias de defesa da mulher têm alta probabilidade de apresentar morbidade psiquiátrica, assim como alterações cognitivas que as impossibilitam de sair do ciclo da violência.

Postintensive care unit psychological burden in patients with chronic obstructive pulmonary disease and informal caregivers: A multicenter study

To determine the prevalence and risk factors of symptoms of anxiety, depression, and posttraumatic stress disorder-related symptoms in patients with chronic obstructive pulmonary disease and their relatives after an intensive care unit stay. Prospective multicenter study. Nineteen French intensive care units. One hundred twenty-six patients with chronic obstructive pulmonary disease who survived an intensive care unit stay and 102 relatives. None. Patients and relatives were interviewed at intensive care unit discharge and 90 days later to assess symptoms of anxiety and depression using Hospital Anxiety and Depression Scale (HADS) and posttraumatic stress disorder-related symptoms using the Impact of Event Scale (IES). At intensive care unit discharge, 90% of patients recollected traumatic psychological events in the intensive care unit. At day 90, we were able to conduct telephone interviews with 53 patients and 47 relatives. Hospital Anxiety and Depression Scale scores indicated symptoms of anxiety and depression in 52% and 45.5% of patients at intensive care unit discharge and in 28.3% and 18.9% on day 90, respectively. Corresponding prevalence in relatives were 72.2% and 25.7% at intensive care unit discharge and 40.4% and 14.9% on day 90, respectively. The Impact of Event Scale indicated posttraumatic stress disorder-related symptoms in 20.7% of patients and 29.8% of relatives on day 90. Peritraumatic dissociation assessed using the Peritraumatic Dissociative Experiences Questionnaire was independently associated with posttraumatic stress disorder-related symptoms in the patients and relatives. Previous intensive care unit experience and recollection of bothersome noise in the intensive care unit predicted posttraumatic stress disorder-related symptoms in the patients. Psychiatric symptoms were found to be common in a group of 126 patients with chronic obstructive pulmonary disease who survived an intensive care unit stay and their relatives at intensive care unit discharge and 90 days later. Peritraumatic dissociation at intensive care unit discharge was found to independently predict posttraumatic stress disorder-related symptoms in this sample of patients and relatives.

Management of traumatic events: influence of emotion-centered coping strategies on the occurrence of dissociation and post-traumatic stress disorder

Our aim was to assess the influence of the coping strategies employed for the management of traumatic events on the occurrence of dissociation and traumatic disorders. We carried out a 1-year retrospective study of the cognitive management of a traumatic event in 18 subjects involved in the same road vehicle accident. The diagnosis of post-traumatic stress disorder (PTSD) was made for 33.3% of the participants. The participants with a PTSD diagnosis 1 year after the event used emotion-centered strategies during the event more often than did those with no PTSD, P < 0.02. In the year after the traumatic event, our results show a strong link between the intensity of PTSD and the severity of the post-traumatic symptoms like dissociation (P = 0.032) and the use of emotion-centered strategies (P = 0.004). Moreover, the participants who presented Peritraumatic Dissociative Experiences Questionnaire scores above 15 made greater use of emotion-centered coping strategies than did those who did not show dissociation, P < 0.04. Our results confirm that the cognitive management of traumatic events may play an essential role in the development of a state of post-traumatic stress in the aftermath of a violent event.

Validation of the Peritraumatic Dissociative Experiences Questionnaire and Peritraumatic Distress Inventory in school-aged victims of road traffic accidents

BackgroundAlthough the reliable and valid Peritraumatic Distress Inventory (PDI–C) and Peritraumatic Dissociative Experiences Questionnaire (PDEQ) are useful for identifying adults at risk of developing acute and chronic posttraumatic stress disorder (PTSD), they have not been validated in school-aged children and their predictive values remain unknown in this population. This study aims to assess the psychometric properties of the children versions of these two measures (PDI-C and PDEQ-C) in a sample of French-speaking school-children. MethodsOne-hundred and thirty-three consecutive victims of road traffic accidents, aged 8–15 years, were recruited into this longitudinal study via the emergency room. The peritraumatic reactions were assessed at baseline and PTSD symptoms were assessed 1 month later. ResultsCronbach's alpha coefficients were 0.8 and 0.77 for the PDI-C and PDEQ-C, respectively. The 1-month test-retest correlation coefficient (n=33) was 0.77 for both measures. The PDI-C demonstrated a two-factor structure while the PDEQ-C displayed a one-factor structure. As with adults, the two measures were intercorrelated (r=0.52) and correlated with subsequent PTSD symptoms and diagnosis (r=0.21–0.56; P<0.05). ConclusionsThe children versions of the PDI and PDEQ are reliable and valid in children.

The psychological impact of motor vehicle accidents on emergency service workers

Emergency service workers continuously face situations where they are in charge of the lives of others, and this can be a risk factor for their mental health. This study aims to determine the psychological impact of exposure to current death and physical injury events in the context of motor vehicle accidents among emergency personnel and which variables better predict posttraumatic stress disorder. Participants were National Institute of Medical Emergency workers (nurses and medical doctors; n= 59) in the north of Portugal. They filled out a trauma exposure and posttraumatic stress disorder scale (PTSD), a scale that assesses distress (General Health Questionnaire 12), a peritraumatic dissociation scale (Peritraumatic Dissociative Experiences Questionnaire) and a coping scale (Ways of Coping Questionnaire). Participants reported high exposure to events evaluated as traumatic, but low prevalence of PTSD. When the relation between exposure, time in emergency, sex, distress symptoms, peritraumatic dissociation, and PTSD symptoms was examined, peritraumatic dissociation and distress were the only predictors of PTSD symptoms, but beyond their contribution direct coping explains PTSD variance. In conclusion, taking into account the contribution of distress and peritraumatic dissociation to predict psychopathological symptoms, and the contribution of coping to lower PTSD scores, education and training should help the professionals deal with these reactions and improve coping, and organizations should support professionals in the most disturbing situations.

Peritraumatic reactions and posttraumatic stress symptoms in school-aged children victims of road traffic accident

Objective The purpose of this study is to investigate the power of self-reported peritraumatic distress and dissociation to predict the development of posttraumatic stress disorder (PTSD) symptoms in school-aged children. Methods School-aged children aged 8 to 15 years admitted to an emergency department after a road traffic accident were enrolled ( n=103). Participants were assessed with the child versions of the Peritraumatic Distress Inventory and the Peritraumatic Dissociative Experiences Questionnaire within 1 week. Posttraumatic stress disorder symptoms were then assessed at 5 weeks. Results A significant association between peritraumatic variables and two measures of PTSD symptoms was demonstrated. However, in a multivariate analysis, peritraumatic distress was the only significant predictor of acute PTSD symptoms ( β=.33, p<.05). Conclusions As has been found in adults, peritraumatic distress is a robust predictor of who will develop PTSD symptoms among school-aged children.

P01-176 - Validation of the peritraumatic dissociative experiences questionnaire and peritraumatic distress inventory in school-aged victims of road traffic accidents

ObjectivesAlthough the Peritraumatic Distress Inventory (PDI) and Peritraumatic Dissociative Experiences Questionnaire (PDEQ) are both useful for identifying adults at risk of developing acute and chronic post-traumatic stress disorder (PTSD), they have not been validated in school-aged children. The present study aims at assessing the psychometric properties of the PDI and PDEQ in a sample of French-speaking school children.MethodsOne-hundred and thirty-three school-aged victims of road traffic accidents were consecutively enrolled into this study via the emergency room. Mean(SD) age was 11.7(2.2) and 56.4% (n=75) of them were of male gender. The 13-item self-report PDI (range 0-52) and the 10-item self report PDEQ (range 10-50) were assessed within one week of the accident. Symptoms of PTSD were assessed 1 and 6 months later using the 20-item self-report Child Post-Traumatic Stress Reaction Index (CPTS-RI) (range 0-80).ResultsMean(SD) PDI and PDEQ scores were 19.1(10.1) and 21.1(7.6), respectively, while mean(SD) CPTS-RI scores at 1- and 6-months were 22.6(12.4) and 20.6(13.5), respectively. Cronbach's alpha coefficients were 0.8 and 0.77 for the PDI and PDEQ, respectively. The 1-month test-retest correlation coefficient (n=33) was 0.77 for both measures. The PDI demonstrated a 2-factor structure while the PDEQ displayed a 1-factor structure. As with adults, the two measures were inter-correlated (r=0.52) and correlated with subsequent PTSD symptoms (r=0.21−0.56; p&lt; 0.05).ConclusionsThe PDI and PDEQ are reliable and valid in school-aged children, and predict PTSD symptoms.