View clinical trials related to Stress Disorders, Traumatic.
Filter by:This study looks at the biological effect of domestic violence and abuse (DVA) on women's mental health. The mechanisms through which DVA causes mental disorders are very poorly understood. Similar to other demands, DVA activates the biological stress system, of which the chief component is the hypothalamic-pituitary-adrenal (HPA) axis, which produces chemical cortisol. Cortisol levels increase in response to short-term demand and help organisms deal with it by changing the processes of getting energy from food and also mental function. However constant activation of the HPA axis can cause damage and accelerate disease. This study tests the hypothesis that compared to non-abused women all abuse victims have altered diurnal rhythm in cortisol secretion and that the pattern of this alteration is predicted by abuse characteristics, such as its type, severity, duration, and cessation. To examine the hypothesis the following research questions will be addressed: 1) whether cortisol levels are related to mental health state; 2) whether cortisol levels are related to type, severity, duration and cessation of DVA; 3) whether there is any difference in cortisol concentrations between those women exposed to both childhood abuse and DVA and those who have experienced only the latter; 4) whether cortisol levels vary between women, living in refuge and those not living in refuge? To answer these research questions 214 women will be recruited in a domestic violence agency. Baseline and 3-monthly follow-up measures will be taken over 6 months after recruitment. Women will be asked to fill in a questionnaire to evaluate their demographics, health, experience of childhood abuse and DVA. Women's weight and height will be taken. In addition participants will be asked to take three saliva samples: 1st in the evening in bed, 2nd - next morning immediately upon awakening, and the 3rd - in thirty minutes after awakening. Saliva will be collected by chewing (for 2 minutes) the cotton pledget provided with plastic tube and returned by post or via collection by the researcher. Then the saliva samples will be tested for cortisol and cortisone. Results of the study will increase our understanding of the biological mechanisms of DVA impact on a woman's health and tell researchers and practitioners about the possibility of using cortisol as an indicator to diagnose abuse-related health problems and assess effectiveness of medical care for abuse survivors.
The aim of this project is to create fear conditioning paradigm within which the relative strengths of various novel pharmacological and behavioral interventions can be tested. These interventions are intended to reduce the fearfulness associated with fear conditioning by blocking a memory process known as reconsolidation. In fear conditioning, a "conditioned" stimulus (CS) is paired with an aversive "unconditioned" stimulus (US) such as an electric shock, until presentation of the CS alone comes to elicit a fear conditioned response (CR). The investigators hypothesize that by using a more highly prepared CS (i.e. video of spiders); more sensitive subjects (individuals with stronger acquired CRs); and additional experimental probes for the presence of the latent CR, the investigators may develop a normal human paradigm that is not plagued by previously observed floor effects (i.e. intervention is 100% effective), within which both the established techniques of propranolol and delayed extinction will produce significant, but only partial, CR reduction. This would leave room to test and compare potentially more powerful candidate reconsolidation-blocking or memory-updating interventions. To achieve these aims, subjects will undergo a four-day fear conditioning and delayed extinction protocol. Skin conductance response data will be gathered across the different phases of the experiment.
Post Traumatic Stress Disorder (PTSD), is a devastating condition which causes distress or impairment in social, occupational or other important aspects of functioning. The occurrence of PTSD in the military is on the rise. This has significantly impacted military members, their families, and society as a whole. According to an expert panel convened by the Institute of Medicine in 2007, the effectiveness of most currently employed PTSD therapies is low. Safe and effective treatments are urgently needed. The specific aim of this investigation is to evaluate the effectiveness of a novel approach to relieve PTSD symptoms, utilizing a procedure commonly used in pain management, a Stellate Ganglion Block (SGB) with local anesthesia. Male soldiers experiencing moderate to severe symptoms of PTSD will be recruited for evaluation of Stellate Ganglion Block with local anesthesia as an intervention for PTSD treatment. Participants will be randomized to receive either the SGB with local anesthesia to C6 tubercle or a sham procedure involving a subcutaneous saline injection to the neck. The PTSD symptoms before and after the procedure will be measured using a comprehensive clinician-administered scale, self-report measures, objective measures of cognitive ability, and physiologic reactivity measures. Subjects will undergo assessment prior to the procedure, one week following the procedure, one month and 3 months following the procedure. Patients receiving sham injections will be allowed to cross over to the treatment group. Based on published case reports of Lipov et al in Chicago and Mulvaney et al from Walter Reed Medical Center, who utilized this technique to successfully treat soldiers with combat-related PTSD, we predict that the use of Stellate Ganglion Block will result in reduction of PTSD symptoms as measured by clinician-administered scales, self-report measures, objective measures of cognitive ability, and physiologic reactivity measures, leading to a significant and lasting reduction of PTSD symptoms.
The aim of our study is to determine the feasibility of carrying out a randomized controlled trial (RCT) to investigate whether screening parents of children admitted to pediatric intensive care unit (PICU) so as to target follow-up at those most at risk of developing posttraumatic stress disorder (PTSD), is effective at reducing adverse psychological sequelae.
This is a prospective, longitudinal cohort study to evaluate the associations between indices of brain structure and function (measured at baseline, as soon as possible after injury) and course of post-traumatic stress disorder (PTSD) symptoms. Subjects will be service members who have sustained mild traumatic brain injury (classified as either "impact-induced mTBI" or "blast-induced mTBI"; n = 100 completers) or an extracranial injury (ECI) with no evidence of traumatic brain injury (TBI) (n = 100 completers). Subjects will complete an assessment battery at baseline and 6 months later that includes (1) structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) derived from a 3-Tesla magnet; (2) event-related brain potentials (ERPs) derived from brain electrical activity; (3) neurocognitive tests; and (4) neurological soft signs (NSS). Specific indices of brain structure and function derived from these assessments are hypothesized to demonstrate a significant relationship with course of PTSD symptoms, which will be measured at baseline, 3 months, and 6 months.
After traumatic injuries some people have difficulty returning to the routine of their everyday activities and may experience physical and emotional pain. The purpose of this study is to identify new ways of providing support for physically injured trauma survivors. All study procedures are designed to work around patient needs and be as flexible as possible in order to best fit into patients' post-injury recovery. Patients who are eligible for the study are randomly assigned to receive care as usual, or the "new method of treatment," with the study Trauma Support Specialist (TSS). This TSS will be in contact with the patient for the next three months; they may visit the patient at the hospital or at outpatient medical appointments. The TSS will also be available to talk with the patient over the telephone. Overall, the TSS will be working with the patient to help with difficulties returning to his or her routine and overcoming physical and emotional pain experienced after the injury. We believe that patients who receive the "new method of treatment," will be more able to return to daily routines and/or cope with the emotional stress that can occur after an injury. Intervention technology innovations including mHealth applications and web-based links will be included in the investigation.
The purpose of this study is examine, whether a treatment approach, which is specifically tailored for perpetrators who have participated in violence (a variant of Narrative Exposure Therapy) is effective in the reduction of instrumental aggression and symptoms of posttraumatic stress disorder.
The enormous global burden of mental illness has been estimated through the publication of the Global Burden of Disease Study. Research confirms that populations exposed to mass trauma such as natural disaster bear a particularly high burden of mental disorders, with depression and Posttraumatic Stress Disorder (PTSD) generally being the top two adult psychiatric diagnoses. In traumatized populations, these disorders do not remit with replacement of material losses or resettlement to safe locations, but rather tend to become chronic conditions with attendant disability. PTSD and depression are risk factors for anger, interpersonal discord and violence, not only among those who have trauma and depression, but also among their spouses and children. This "infectious" model of trauma/violence is critically important in the setting of natural disaster, as increased levels of interpersonal violence within the afflicted community hinder its recovery. To date, there has been little research on the interpersonal effects of mass trauma. The proposed research is a randomized controlled trial of "Interpersonal Therapy" (IPT) versus wait list control (WLC) for survivors of the Sichuan Earthquake living in Shifang, China. IPT, a very effective therapy for depression, has been adapted for PTSD treatment and developing country settings. Measures will evaluate success of the treatment not only in terms of individual depression and PTSD symptoms, but also with respect to interpersonal functioning. Hypothesis 1: Relative to wait list control, fewer subjects who received IPT will meet criteria for Depression and PTSD at the conclusion of the RCT. Hypothesis 2: Subjects who received IPT will have greater improvement of social functioning than wait list controls.
The purpose of this study was to evaluate whether a brief intervention in video format delivered in the post assault medical exam setting and including education about assault reactions and instruction in and modeling of successful coping strategies would reduce post assault drug use or abuse and PTSD symptoms as compared to standard care.
This proposed study aims to determine whether decreasing stress levels in persons with posttraumatic stress disorder (PTSD) can lead to a change in the intestinal microbiota, assessed 8 weeks after enrollment.