The use of ketamine has increased; however, actual consumption patterns and ketamine-related deaths remain poorly understood. This study aimed to (1) cluster the consumption patterns of individuals who consume ketamine and (2) investigate their associations with manner and cause of death. A retrospective study was conducted on all cases positive to ketamine at death, retrieved from the...
BMC NursingMarch 14, 2025Lina Klysing, Ingrid Larsson, Katrin Häggström Westberg2 citations
Patients suffering from treatment-resistant depression may be treated with nasal esketamine. The treatment requires administration in a healthcare facility and monitoring by a nurse. Existing research has mainly focused on the clinical effect of nasal esketamine, while less is known about patients' experiences of treatment. A person-centred framework provides valuable insights into care and...
Rett syndrome (RTT) is a severe neurodevelopmental disorder. N-Methyl-d-aspartate receptor (NMDAR) antagonism has shown therapeutic potential in preclinical RTT models. We performed a pilot study to explore whether intravenous esketamine, an NMDAR antagonist, alleviates the symptoms of pediatric RTT. This was a prospective, single-arm, single-site, open-label, early phase 1 pilot study. Three...
JMIR Formative ResearchMarch 11, 2025Mollie R Cummins, Julia Ivanova, Hiral Soni et al.3 citations
In the postpandemic era, telemedicine continues to enable mental health care access for many people, especially persons living in areas with mental health care provider shortages. However, as lawmakers consider long-term telemedicine policy decisions, some question the safety and appropriateness of prescribing via telemedicine, and whether there should be requirements for in-person evaluation,...
Ketamine, a rapid-acting antidepressant, has undesirable psychotomimetic effects, including a dissociative effect. There is currently no effective strategy to suppress these side effects while preserving its antidepressant effect. Here, we investigated the effects of a D2/D3 receptor antagonist and partial agonists on the psychotomimetic and antidepressant effects of ketamine in mice and...
To evaluate the efficacy, safety, and tolerability of esketamine nasal spray vs psychoactive placebo (oral midazolam) in rapidly reducing depressive symptoms in adolescents with major depressive disorder at imminent risk for suicide. This double-blind, double-dummy, phase 2b study randomized (1:1:1:2) 147 adolescents (12 to <18 years old) to esketamine (28, 56, or 84 mg) or midazolam twice...
This systematic review synthesizes current evidence on non-prescribed ketamine use, emphasizing its neurobiological impacts and psychotherapeutic interventions. Patterns of misuse demonstrate the complex interplay of neurobiological, socio-economic, demographic and psychological factors with adolescents, women and polysubstance users identified as high-risk groups. Neurobiological findings...
In this editorial, we comment on a recent article by Chen et al, that addressed the effect of intraoperative injection of esketamine on postoperative analgesia and postoperative rehabilitation after cesarean section. Poor management of post-cesarean pain is associated with decreased maternal care for the baby, longer hospitalization, and higher risk of developing postpartum depression....
Background/Objects: Rho signaling plays a role in calcium-regulated cytoskeletal reorganization and cell movement, processes linked to neuronal function and cancer metastasis. Gastrodia elata, a traditional herbal medicine, can regulate glutamate-induced calcium influx in PC12 cells and influence cell function by modulating neuronal cytoskeleton remodeling via the monoaminergic system and Rho...
Opioid-induced hyperalgesia (OIH) is a serious complication during the pain treatment. Ketamine has been commonly reported to treat OIH, but the mechanisms remain unclear. Gut microbiota is recently recognized as one of the important mechanisms underlying the occurrence and treatment of OIH. However, whether ketamine enantiomers could alleviate OIH through gut microbiota that still needs to be...
ACS Chemical NeuroscienceMarch 5, 2025Syed Muzzammil Masaud, Humaira Nadeem, Babar Murtaza et al.3 citations
This study investigated the synthesis, characterization, and in silico analysis of novel N-acetamide ketamine derivatives aimed at evaluating their analgesic, anesthetic, and antidepressant properties. The synthesis commenced with the preparation of chloroacetylamide derivatives, which were subsequently reacted with ketamine hydrochloride, yielding 16 derivatives k1 to k16. These compounds were...
Ketamine, a substance used for anesthesia and known for inducing dissociation, can lead to addiction and the development of severe withdrawal symptoms. Ketamine alters brain networks before affecting somesthetic sensation. Ketamine abuse was especially prevalent in East and Southeast Asia, and its popularity has continued to expand globally in recent decades. Ketamine is gaining popularity in...
Ketamine has been investigated as a treatment alternative for PTSD for the last 20 years, yet there have been virtually no reports of biological changes or biomarker characterisation related to treatment. To address this significant gap, this study analysed blood samples from 25 participants with PTSD who took part in an open-label 6-week trial of low dose oral ketamine treatment. Serum and...
Several sensitivity analyses of a Phase 3b trial have demonstrated that esketamine nasal spray was consistently more efficacious than extended‐release quetiapine in patients with treatment‐resistant depression (TRD). The additional analyses of the ESCAPE‐TRD trial used multiple thresholds for remission and relapse. Study results were published online Dec. 2, 2024, in The British Journal of...
Objective: To compare efficacy and safety outcomes for ketamine anesthesia + electroconvulsive therapy (ECT) versus nonketamine anesthesia + ECT in treatment-resistant depression (TRD) patients. Data Sources: PubMed and Embase were searched from the earliest date through November 27, 2023. Study Selection and Data Extraction: Relevant randomized controlled trials (RCTs) of ketamine + ECT versus...
Abstract Xylazine, traditionally used as a veterinary sedative, has recently emerged as a new psychoactive substance, being typically ingested in combination with fentanyl derivatives and hence raising significant public health concerns. Despite its increasing prevalence, little is known about its molecular interactions with human neuroreceptors, specifically the serotonin 7 (5‐HT 7 R) and...
Studying To investigate the clinical values of dexmedetomidine and esketamine combined with intranasal infusion before laparoscopic high ligation of hernia sacs in infants and young children. In our hospital, 90Ninety children aged 8-14 years underwent surgical high ligation of the hernia sac between March 2021 and March 2022 were included. During March 2021 to March 2022, 90 children aged 8-14...
The goal of palliative care is to focus on the holistic needs of the patient and their family versus the pathology of the patient's diagnosis to reduce the stress of illness. U.S. servicemembers deployed to austere environments worldwide have significantly less access to palliative care than in military treatment facilities in the U.S. Preparation for future conflicts introduces the concept of...
Modern electroconvulsive therapy (ECT) and the approval of nasal esketamine for clinical use have significantly improved the approach to treatment-resistant depression (TRD), which is defined as non-response to at least two different courses of antidepressants with verified adherence to treatment, adequate dosage, and duration of treatment. The goal of this literature review is to present the...
Ketamine has been used to control refractory cancer pain as an adjuvant to opioids. We conducted a prospective phase II study to investigate the efficacy and safety of 5-day continuous intravenous infusion (CIVI) of Ketamine in terminally ill cancer patients with refractory cancer pain. Hospitalized terminally ill cancer patients with refractory cancer pain were enrolled. Refractory cancer pain...