Dissociative states, characterized by discontinuities in awareness and perception, occur in a diverse array of psychiatric disorders and contexts. These states have been experimentally modeled in the laboratory through various induction methods, but relatively little is known about the efficacy and comparability of different experimental methods. In this meta-analysis, we quantified...
Dissociative symptoms are commonly observed in a substantial minority of patients with Post-Traumatic Stress Disorder (PTSD) and during the first administration of esketamine for the treatment of Treatment-Resistant Depression (TRD). We examine differences in the number and pattern of dissociative symptoms (depersonalization, derealization, dissociative amnesia, identity fragmentation) reported...
We previously completed a double-blind randomised crossover study assessing intramuscular ketamine for treatment-resistant depression (TR-D), post-traumatic stress disorder (TR-PTSD) and obsessive-compulsive disorder (TR-OCD). Here, we report an extension study to explore the ongoing benefits and tolerability of maintenance oral ketamine. All participants from the original study were eligible...
CHEST critical careJune 1, 2025Lucas C Wollenman, Austin M Tipold, Matthew W. Semler et al.1 citation
One of 3 patients in the ICU receiving mechanical ventilation demonstrates posttraumatic stress disorder (PTSD). A single dose of ketamine has been shown to reduce PTSD symptoms in outpatients with chronic PTSD, but its long-term effect is unknown in patients who are critically ill and mechanically ventilated. Is ketamine, when used for induction of anesthesia before emergency tracheal...
Firefighters display elevated risk for diagnoses of mental health illnesses. Psychedelic-assisted therapies show promise in the treatment of clinically challenging conditions. This observational case series analyzed data from firefighters with mental health diagnoses who participated in a 12-week ketamine-assisted group therapy treatment plan. Questionnaire scores (Generalized Anxiety Disorder...
Existing studies predominantly focus on the molecular and neurobiological mechanisms underlying Ketamine's acute treatment effects on post-traumatic stress disorder (PTSD). This emphasis has largely overlooked its sustained therapeutic effects, which hold significant potential for the development of targeted interventions. This systematic review examines the pharmacokinetic and pharmacodynamic...
CNS DrugsJune 1, 2025Sijia Zhang, Houtan Afshar, Peter J. Colvonen et al.1 citation
Ketamine and esketamine are increasingly used to manage treatment-resistant depression and have also been shown to reduce symptoms of posttraumatic stress disorder (PTSD). Little is known about how common comorbidities in the veteran population, such as traumatic brain injury (TBI) or obstructive sleep apnea (OSA), may influence ketamine and esketamine treatment outcomes. In this retrospective...
Abstract Background Ketamine has emerged as a rapid-acting therapeutic option for post-traumatic stress disorder (PTSD); however, its ability to sustain long-term therapeutic outcomes remains poorly understood. Identifying molecular biomarkers predictive of a sustained response to ketamine may enhance personalised treatment strategies. This study investigates the epigenetic and transcriptomic...
Ketamine’s rapid acting symptom relief make it a promising intervention for PTSD. However, the mechanisms driving its long-term efficacy over weeks and months remain poorly understood. This study investigated the short-and long-term impacts on gene expression of a six-week subanesthetic oral ketamine trial in 23 PTSD participants (9 males, 14 females). Peripheral Blood Mononuclear Cells (PBMCs)...
Posttraumatic stress disorder (PTSD)/blast traumatic brain injury (bTBI) in a Special Operations Forces (SOF) cohort has been shown to be successfully treated using a cervical sympathetic blockade (CSB)/ketamine infusion (KI) combination, termed the SOF method. In a prior case report, the patient was followed for 1 year. This report followed the same patient for a total of 720 days and found...