Active clinical trials for "Stress Disorders, Post-Traumatic"

Identifying neural mechanisms of posttraumatic stress disorder (PTSD) treatment could help elucidate reasons for variable treatment response and identify novel treatment targets. Exposure-based therapies have been associated with decreased amygdala and increased cingulate cortex response during emotional processing. The current study examined whether cognitive therapy for PTSD in women reduces activation in insula and amygdala and enhances activation in prefrontal regions during emotional anticipation and pre-treatment prefrontal activation predicts treatment response.

The investigators are seeking people who have been exposed to a traumatic event in the past and have symptoms of posttraumatic stress disorder (PTSD) currently. A person with PTSD may feel significant distress when reminded of a traumatic event or feel depressed, anxious or jumpy. As a part of this study, participants will receive brain MRIs and office assessments before and after psychotherapy. The investigators provide the gold-standard psychotherapy for PTSD, "Prolonged Exposure", free of charge; additionally participants are compensated for their time during assessment procedures. This study is exploring the brain circuitry involved in improvement in response to psychotherapy.

We hypothesize that prevention of Sleep Disordered Breathing among PTSD patients with nasal CPAP will result improve their anxiety, insomnia and alcohol craving (among those who use alcohol to control their symptoms).

This project assesses the usability and feasibility of a multi-behavioral computerized, tailored intervention (CTI) or expert system delivered via the Internet for veterans with Post-Traumatic Stress symptoms. Three behavioral health risk factors, (1) smoking, (2) depression, and (3) stress, that are associated with Post-Traumatic Stress Disorder (PTSD), are included in the Computerized, Tailored Intervention (CTI) system. The project adapts and modifies an existing CTI system built on the Transtheoretical Model of Behavior Change (TTM) to make it relevant to a veteran population. The system has been successfully utilized with general adult populations. The study utilizes methods that are characteristic of a product development project. Each of the four project phases are sequential and build upon the results of the previous phase. Phase 1 focuses on the review of current CTI programs on smoking cessation, stress management, and depression prevention, and integrating them into a multi-behavioral program for application with veterans. Phase 2 includes the development and adaptation of text-based feedback messages and multimedia components for smoking cessation, stress management, and depression prevention for veterans. Initial testing of the modified CTI programs commences in Phase 3. Cognitive and usability testing with veterans are performed, and additional modifications to the behavioral modules are made based on the test results. Phase 4 focuses on a feasibility study to test the multi-behavioral CTI system with veterans online.

To investigate the prevalence of posttraumatic stress disorder (PTSD) in patients that underwent surgery for primary rhegmatogenous retinal detachment (RRD) and to determine variables associated with the disorder. Design: Consecutive prospective observational study.

Approximately, post-traumatic stress disorder (PTSD) occurs in 8% of the adult population over time. Exposure to traumatic events increases the risk of poor physical health and often leads to disability. The biology of PTSD is continually being explored in order to help find better treatments for this debilitating disorder. In our study, we propose to further our understanding of PTSD. Prior research has found that patients with PTSD have changes in the stress hormone pathway. In this pathway, there is release of certain hormones from the pituitary gland in the brain that feed into the blood stream and tell the adrenal gland to produce stress hormones. The pituitary is a gland located at the base of the brain which controls the hormones in the body, including the stress hormones. Research in other psychiatric disorders has found changes in the pituitary volume along with changes in the hormones. This has not been investigated yet in PTSD. Therefore, we propose in our study to measure pituitary volume in people with PTSD and look at the changes in the stress hormone pathway. Moreover, we will investigate whether other hormones are affected by PTSD. In this way, we can further our understanding of the the biology of PTSD and help develop new therapies which can intervene through the hormonal system.

People experience a wide range of outcomes following a traumatic event. Although rates differ depending on type of trauma, 20-60% of trauma victims may develop posttraumatic stress disorder (PTSD). However, not all trauma victims develop PTSD. Previous research has found that trauma victims who develop PTSD excrete lower levels of urinary cortisol immediately after a trauma than victims who do not develop PTSD. Other research has suggested that increasing levels of cortisol may protect against the development of PTSD in patients such as yourself- but this has not yet been examined. Cortisol is a naturally occurring hormone in your body, and the present study is designed to test whether increasing cortisol levels can protect against or decrease symptoms of PTSD. Participants in this study will be randomly assigned to one of two treatment groups. Participants will receive either hydrocortisone (20mg, twice per day) or a placebo (a sugar pill) for 10 days with a six-day taper. There is an equal chance of being in either treatment group, and neither the participant nor the experimenters will know which treatment was received (except in case of an emergency).

The purpose of this study is to examine if treatment of post-traumatic stress disorder in combat veterans with paroxetine changes brain responses as measured by functional magnetic resonance imaging and if brain responses can predict who will get better with treatment.

Posttraumatic stress disorder (PTSD) is a serious and often chronic response to overwhelmingly stressful events as Road Traffic Accident. Moreover PTSD is associated with increased rates of medical morbidity, poor health-related quality of life, and functional impairment. PTSD is prevalent in primary care settings after road traffic accident, where approximately 25% of patients meet diagnostic criteria for the disorder. Despite the development of a number of efficacious behavioral and pharmacological treatments, only a minority of patients with PTSD receive mental health services. PTSD is frequently underrecognized and untreated in Emergency Department and Surgical Unit. Then, early diagnosis and prevention of PTSD might help to identify patients with PTSD high risk and lead them to benefit of personalized cares. Nevertheless it is not possible (neither useful) to provide psychological cares for each road traffic accident victim. This is the reason why we think that nurses can help to screen patients who need treatment for PTSD Hypothesis : Recognition of specific clinical or biological signs occurring during road traffic accident victim hospitalization in surgical unit could allow beginning specific treatment using consultation liaison psychiatry. Early treatment could allow decreasing incidence of psychotraumatic disorders, increasing surgical functional efficacy and improve convalescence programs. The use of a specific questionnaire could help to screen this disorder. We have created the DEPITAC scale : a short screening questionnaire with 10 items. This study will be evaluated DEPITAC's 10-item screen for posttraumatic stress disorder (PTSD) for use in surgical or emergency department.

PTSD is a common and distressing possible outcome following exposure to a traumatic event. Recent studies show that memory processes may be central to the development of the disorder, and interrupting the consolidation of traumatic memories may prevent the disorder from developing. Specifically the use of a visual spatial task has been shown to reduce a key characteristic of PTSD, intrusions, in non-clinical populations. This study aims to administer a visual spatial task to recent trauma survivors in the Emergency Room, and compare PTSD and symptoms development in these patients as compared to a control group who did not carry out the task. The study hypothesizes that the task will result in less PTSD, lower levels of intrusions, dissociation and pain.