View clinical trials related to Stress Disorders, Traumatic.
Filter by:Posttraumatic stress disorder (PTSD) is prevalent among military Veterans and is more than just a psychological condition; PTSD has profound negative impacts on health, function, and quality of life. Older Veterans are the largest patient population served by the Veterans Health Administration (VHA), and many have lived with PTSD for 40+ years. Veterans with PTSD engage in low levels of physical activity and spend much of their time in sedentary activities, adding to their risk of physical disability. The benefits of exercise on mental health and physical well-being in older adults are well-substantiated, but the effects of exercise training on late-life PTSD symptoms is a new area of study. This study is designed to examine the effects of 6 months of supervised exercise training on PTSD symptoms and PTSD-related conditions (e.g., functional impairment, sleep) in 188 older Veterans with PTSD.
This qualitative study with quantitative elements examines the health care provided to women who suffered from mental disorder during pregnancy and / or in the first year after birth (i.e. during the perinatal phase). Investigators will perform individual interviews with former PMD patients, and health and social care professionals to gain insights into current health care for PMD patients.
This is a research study to examine the effectiveness of a brief screening method that may predict which people with posttraumatic stress disorder (PTSD) or depression are most likely to show a positive response to selective serotonin reuptake inhibitor (SSRI) medications. Participants will be recruited over approximately 5.25 years, until at least 94 participants complete the 17 week study.
Given the high prevalence of post-traumatic stress disorder (PTSD) in veterans and active duty military, the focus of this research study is to test the reliability of two new PTSD assessments, the Clinician Administered PTSD Scale for DSM-5 (CAPS-5) and the PTSD Symptom Scale Interview for DSM-5 (PSSI-5) and compare the results between the two new assessments and the previous "gold standard", the Clinician Administered PTSD Scale for DSM-IV (CAPS-IV). Biomarkers believed to be related to PTSD (e.g., biofluid biomarkers, cognitive and physiological markers, and neural activity as measured by EEG) will be collected to inform targeted interventions in specific groups of patients and other large-scale biomarker discovery efforts in the field. Participants will be 950 male and female active duty military and veterans ages 18 or older who have been exposed to at least one traumatic event.
Post-traumatic stress disorder (PTSD) refractory to treatment is marked by failure of fear extinction and its biological substrate, amygdala reactivity to trauma reminders. Decades of research have clarified the neuronal mechanisms coordinating fear extinction and consolidation. Fear cells and extinction cells in the basolateral amygdala (BLA) alter their firing rate based on the nature of the stimulus and the influence from the medial prefrontal cortex (mPFC) and the ventral hippocampus (vHPC). Together, the BLA, mPFC, and the vHPC form an anxiety-processing network where the BLA links stimulus to emotion, the vHPC provides memory context, and the mPFC coordinates extinction or consolidation. Local field potential (LFP) recordings from the BLA have revealed specific signals that correspond to an enhanced fear state. Previous studies have shown that neuromodulation of the BLA can promote extinction in a rodent model and in a treatment-refractory PTSD patient. This action is likely carried by disrupting fear signals within the BLA; however, continuous neurostimulation may also disrupt normal function of the amygdala. The present application proposes to investigate the use of Responsive Neurostimulation (RNS, Neuropace) in six (6) veterans suffering from severe treatment-resistant PTSD. This dual-activity device will allow us to chronically record LFPs from the BLA under specific conditions such as fear conditioning, exposure to trauma reminders, and emotional memory encoding and retrieval. In addition, the neural activity will be captured during real-life symptoms of flashback and nightmares. These recordings will provide the specific electrophysiological biomarkers of hypervigilance and re-experiencing. The device will then be programmed to detect and treat these biomarkers with a pre-determined electrical pulse. The patients will be followed prospectively using psychological scales but also with functional neuroimaging and electroencephalograms. These modalities will be used to determine the extent of circuit engagement as a result of the therapy. By approaching PTSD from a fear processing mechanism perspective, our project will serve as a proof of concept for other circuit-based therapies in psychiatry. This proposal is a multi-departmental effort involving 11 investigators across 7 departments and requires a close collaboration between clinical and basic scientists. As a result, the findings underlying chronic recordings will bridge the basic science results from fear conditioning research to clinical neural processes in PTSD patients.
Exaggerated inflammation in the body and brain is thought to play a role in the vulnerability to and aggravation and perpetuation of adverse consequences among those with posttraumatic stress disorder (PTSD). The proposed study begins the process of investigating the use of a natural immunoregulatory/anti-inflammatory probiotic, Lactobacillus rhamnosus GG (LGG; ATCC53103), to treat chronic symptoms associated with PTSD among Veterans. By looking at the impact of probiotic supplementation on biological signatures of increased inflammation, as reflected by biomarkers of inflammation, gut microbiota composition, intestinal permeability, stress response, decision making, and PTSD symptoms, this study may identify a novel intervention for the treatment of symptoms associated with this frequently occurring condition.
In brief, ART is an innovative "mind-body" (body-centric) psychotherapy that makes use of established core components of trauma-focused therapy including imaginal exposure and imagery rescripting to promote memory reconsolidation, all facilitated as the patient is directed by the therapist to perform sets of lateral left-right eye movements similar to rapid eye movements (REM). The investigators propose to investigate how ART may directly influence heart rate variability (HRV), EEG power spectral densities, and sleep architecture in three aims. At the broadest level, the investigators postulate that both within individual ART sessions, and across the full course of treatment (e.g. up to 4 sessions), ART results in a profound shift from sympathetic (arousal) to parasympathetic (rest) nervous system balance, and that this shift can be reliably measured by neurophysiological assessment using electrocardiogram (ECG) and electroencephalogram (EEG) measurement.
We propose to study the effects of Physician Orders for Scope of Treatment (POST) Facilitation in a randomized controlled trial in a population of community dwelling older adults who qualify for POLST facilitation, including those with normal cognition and those with Alzheimer's Disease and Related Disorders.
Co-occurring post-traumatic stress disorder (PTSD) and major depressive disorder (MDD) is the most common response to trauma; it is associated with poor clinical outcomes and substantial human disability. Veterans with both PTSD and MDD (PTSD+MDD) have been shown to be at much greater suicidal risk than individuals with only one of these disorders. Ketamine given as repeated infusions has been shown to be effective in rapidly reducing PTSD and MDD symptoms in treatment resistant PTSD+MDD individuals. However, knowledge about the mechanisms underlying comorbid PTSD and MDD remain limited. The purpose of this study is to use repeated ketamine infusions as a probe to validate a model of PTSD+MDD that focuses on neuroanatomy and executive functioning.
The purpose of this study is to determine whether a behavioral sleep treatment improves functioning and sleep in Veterans with posttraumatic stress disorder (PTSD).