Psychedelics for acquired brain injury: a review of molecular mechanisms and therapeutic potential.

Acquired brain injury (ABI), such as traumatic brain injury and stroke, is a leading cause of disability worldwide, resulting in debilitating acute and chronic symptoms, as well as an increased risk of developing neurological and neurodegenerative disorders. These symptoms can stem from various neurophysiological insults, including neuroinflammation, oxidative stress, imbalances in neurotransmission, and impaired neuroplasticity. Despite advancements in medical technology and treatment interventions, managing ABI remains a significant challenge. Emerging evidence suggests that psychedelics may rapidly improve neurobehavioral outcomes in patients with various disorders that share physiological similarities with ABI. However, research specifically focussed on psychedelics for ABI is limited. This narrative literature review explores the neurochemical properties of psychedelics as a therapeutic intervention for ABI, with a focus on serotonin receptors, sigma-1 receptors, and neurotrophic signalling associated with neuroprotection, neuroplasticity, and neuroinflammation. The promotion of neuronal growth, cell survival, and anti-inflammatory properties exhibited by psychedelics strongly supports their potential benefit in managing ABI. Further research and translational efforts are required to elucidate their therapeutic mechanisms of action and to evaluate their effectiveness in treating the acute and chronic phases of ABI.

The Montreal model: an integrative biomedical-psychedelic approach to ketamine for severe treatment-resistant depression.

Background: Subanesthetic ketamine has accumulated meta-analytic evidence for rapid antidepressant effects in treatment-resistant depression (TRD), resulting in both excitement and debate. Many unanswered questions surround ketamine's mechanisms of action and its integration into real-world psychiatric care, resulting in diverse utilizations that variously resemble electroconvulsive therapy, conventional antidepressants, or serotonergic psychedelics. There is thus an unmet need for clinical approaches to ketamine that are tailored to its unique therapeutic properties. Methods: This article presents the Montreal model, a comprehensive biopsychosocial approach to ketamine for severe TRD refined over 6 years in public healthcare settings. To contextualize its development, we review the evidence for ketamine as a biomedical and as a psychedelic treatment of depression, emphasizing each perspectives' strengths, weaknesses, and distinct methods of utilization. We then describe the key clinical experiences and research findings that shaped the model's various components, which are presented in detail. Results: The Montreal model, as implemented in a recent randomized clinical trial, aims to synergistically pair ketamine infusions with conventional and psychedelic biopsychosocial care. Ketamine is broadly conceptualized as a brief intervention that can produce windows of opportunity for enhanced psychiatric care, as well as powerful occasions for psychological growth. The model combines structured psychiatric care and concomitant psychotherapy with six ketamine infusions, administered with psychedelic-inspired nonpharmacological adjuncts including rolling preparative and integrative psychological support. Discussion: Our integrative model aims to bridge the biomedical-psychedelic divide to offer a feasible, flexible, and standardized approach to ketamine for TRD. Our learnings from developing and implementing this psychedelic-inspired model for severe, real-world patients in two academic hospitals may offer valuable insights for the ongoing roll-out of a range of psychedelic therapies. Further research is needed to assess the Montreal model's effectiveness and hypothesized psychological mechanisms.

A Pilot Study Comparing a Community of Practice Program with and without Concurrent Ketamine-Assisted Therapy.

The prevalence of depression, anxiety, and post-traumatic stress disorder (PTSD) has increased among healthcare providers, while the effectiveness of conventional treatments remains limited. Ketamine-assisted therapy offers a promising alternative; however, few have integrated ketamine with a group-based therapeutic modality. We report a retrospective, secondary analysis of a 12-week pilot of a Community of Practice (CoP) oriented group therapy program with optional, adjunct ketamine for depression, anxiety, and PTSD in a sample of 57 healthcare providers. All participants moved through the treatment as one group, with 38 electing to also receive three adjunct ketamine sessions in addition to the weekly CoP. Symptoms were assessed at baseline and pilot completion with the PHQ-9 for depression, GAD-7 for anxiety, and PCL-5 for PTSD. We observed significant reductions in the mean change among all participants, suggesting that benefit was derived from the CoP component, with or without ketamine as an adjunct. PHQ-9 scores decreased by 6.79 (95% CI: 5.09-8.49, p < .001), GAD-7 scores decreased by 5.57 (CI: 4.12-7.00, p < .001), and PCL-5 scores decreased by 14.83 (CI: 10.27-19.38, p < .001). Reductions were larger, but statistically nonsignificant, among those receiving ketamine. Further research is required to assess the impact of ketamine as an adjunct in group-based therapies.

Indigenous Voices in Psychedelic Therapy: Experiential Learnings from a Community-Based Group Psychedelic Therapy Program.

Novel and traditional psychedelic medicines are attracting interest as potential treatments of mental illness. Before psychedelic therapies can be made available in culturally safe and effective ways to diverse peoples, the field must grapple with the complex legacies of colonialism and ongoing clashes between biomedical and Indigenous Ways of Knowing. This article presents results of a pilot program offering group-based therapy augmented by three sessions of ketamine at a psychedelic dose, for a group of Indigenous participants. This unique project was undertaken in partnership between Roots to Thrive and the Snuneymuxw First Nation to assess this approach's effectiveness and safety for Indigenous peoples. Thematic analysis of qualitative interviews and anonymous feedback received throughout the program from eight participants and two Elders provided rich information on participant motivations, perceived barriers, appreciated and beneficial aspects of the program, and the psychedelic experiences, as well as important directions for further improvement. In addition to challenges, participants attributed significant benefits to the program while highlighting the importance of the involvement of Indigenous team members, the incorporation of traditional approaches to healing, and the cultivation of open and authentic relationships between group participants and facilitators. We discuss important lessons learned and the essential work of reconciliation in, and beyond, psychedelic therapies.

Safety and tolerability of intramuscular and sublingual ketamine for psychiatric treatment in the Roots To Thrive ketamine-assisted therapy program: a retrospective chart review.

Background: In the last few years, ketamine is becoming increasingly common in the treatment of mental health conditions, but there is a lack of safety data informing intramuscular and sublingual dosing in a community-focused group psychotherapy setting. The Roots To Thrive ketamine-assisted therapy (RTT-KaT) program is a unique 12-week RTT-KaT program with 12 community of practice (a form of group therapy) sessions and three ketamine medicine sessions. Objectives: This study reports on adverse effects of intramuscular and sublingual ketamine dosing in a community group psychotherapy setting among 128 participants across four cohorts. Design: Retrospective chart review. Methods: A chart review of the RTT-KaT Program was performed retrospectively on four cohorts (n = 128) that participated in 448 sessions running between September 2020 and December 2021. Baseline characteristics and adverse events were captured including medication administration before, during, and after RTT-KaT sessions. Analyses by session and by individual were conducted. Chi-square test with Yates' continuity correction was used to assess side effects in subgroups from ketamine administration. Results: RTT-KaT was well tolerated with none of the 128 participants dropping out of the program. Primarily, of the 448 sessions, 49.16% had elevated blood pressures post-KaT session by session. In terms of other adverse effects, 12.05% of participant-sessions experienced nausea, 2.52% had an episode of vomiting, 3.35% had a headache, and seven participant-sessions experienced dizziness. Analysis by individual revealed congruent findings. Conclusion: These findings suggest good safety and tolerability for RTT-KaT among individuals seeking treatment for mental health issues. The majority of participants did not experience adverse reactions and the adverse events that were recorded involved transient symptoms that were resolved with rest and/or medications. The group therapy model described provides a comprehensive approach and presents a promising model for operating a KaT program in a community setting.

Corrigendum: A cohort-based case report: The impact of ketamine-assisted therapy embedded in a community of practice framework for healthcare providers with PTSD and depression.

[This corrects the article DOI: 10.3389/fpsyt.2021.803279.].

A Cohort-Based Case Report: The Impact of Ketamine-Assisted Therapy Embedded in a Community of Practice Framework for Healthcare Providers With PTSD and Depression.

Amid an international pandemic and a worsening mental health crisis, ketamine-assisted therapy is emerging as a promising solution for those deemed "treatment resistant." Post-traumatic stress disorder (PTSD) and depression are on the rise, with accelerating direct (e.g., burden of suffering) and indirect (e.g., disability/role impairment and impact on family) costs. Psychedelic-assisted therapies show significant promise in the treatment of a number of clinically challenging conditions, including depression, anxiety, PTSD, addiction, and end-of-life distress. Ketamine is currently the only safe, effective and legal widely available psychedelic-like medicine. To address the echo pandemic of health care provider distress, a multi-disciplinary team was charged with developing a ketamine-assisted psychotherapy program, delivered in a community of practice (CoP) group model and evaluated in a quality improvement framework. Program evaluation occurred through mixed methods. Quantitative mental health assessments included the PHQ-9 for depression, the PCL-5 for PTSD, GAD-7 for generalized anxiety disorder (GAD), and B-IPF for work/life functionality. Participant narrative feedback was collected to evaluate outcomes and for quality improvement purposes. Mean mental health scores were collected across three cohorts, totaling 94 patients. The mean aggregate scores of participants meeting the mental health assessment cut-off criteria (screening positive) were analyzed to assess clinical significance. Mean aggregate results comparing baseline vs. outcome measures (measured within 1-2 weeks after completion of the 12-week program) were clinically significant, demonstrating significant improvements in depression, post-traumatic stress disorder, generalized anxiety disorder and work/life functionality. In summary, 91% saw improvements in generalized anxiety, 79% saw improvements in depression, 86% of those who screened positive for PTSD now screen negative, and 92% had significant life/work functionality improvements. Qualitative feedback was overwhelmingly positive, with several unsolicited self-reports of transformation. Participant and team feedback enables the program to continue improving with each iteration. Results speak to the effectiveness of ketamine for psychedelic-assisted therapy, supported by a CoP framework. Outcomes are relevant for mental health programming, education and healthcare policy.

The interplay of developmental factors that impact congruence and the ability to thrive among new graduate nurses: A qualitative study of the interplay as students transition to professional practice.

Research suggests the stressors leading to burnout may begin in the undergraduate experience, making the high attrition rates of new graduate nurses highly relevant to undergraduate nurse educators. Through a qualitative research study performed in B.C, Canada, eight novice nurses underwent three in-depth interviews to explore the interplay of factors that enabled and disabled them from thriving upon entry into practice. Prominent undergraduate nursing curriculum factors that were significant in the ability to navigate stimuli before they become chronic stressors included: (1) the ability of students to practice self-care, (2) whether or not faculty supported students to choose practicum and work areas that aligned with their personalities and preferences, and (3) curriculum components that felt relevant and translated well into the workplace. Developmentally, congruence and self-compassion were significant factors that acted as buffers against workplace stress. These insights inform nurse educators by deepening the understanding of the interplay of developmental assets and the experience of stressors that are endemic in their education and workplace experiences.

THRIVEable work environments: A study of interplaying factors that enable novice nurses to thrive.

AIM: The purpose of this study was to gain an understanding of the impact of the interplay between workplace and developmental factors that enable and disable thriving within the first year of nursing practice. BACKGROUND: While much is known about the high attrition rates among new graduate nurses, little research has explored the impact of interplay between workplace stressors and developmental assets. METHOD: Through a basic qualitative study, eight novice nurses underwent three in-depth interviews. RESULTS: The interplay between workplace factors and development factors such as congruence and self-compassion had a significant impact on the participants' ability to effectively manage workplace stimuli. CONCLUSION: Those lacking developmentally were more likely to perceive workplace stimuli as threatening, which had a significant impact on the ability to self-actualize as a novice nurse. Therefore, the role of interplay is significant in determining why some merely survive versus those who thrive, despite similar work environments. IMPLICATIONS FOR NURSING MANAGEMENT: A greater understanding of the impact of the role of interplay will inform transition programs by enabling nurse leaders to cater to the unique needs of new graduates as they step over the threshold of professional practice.

Impact of Interplaying and Compounding Factors in the Novice Nurse Journey: A Basic Qualitative Research Study.

PURPOSE: This study explores the impact of interplaying and often compounding factors and the resulting ability to thrive as a novice nurse. Novice nurse attrition rates continue to be high, compounding concerns of an impending nursing shortage. There is currently a lack of research that seeks to understand how the interplay of contextual factors impacts novice nurses' ability to manage the stressors endemic in the field. DESIGN: The study was performed using a Basic Qualitative Research approach. Eight western Canadian novice nurses underwent multiple iterative interviews to explore the impact of interplaying contextual factors. Findings: While participant experiences and contexts vary, common patterns of interplay among factors were clear. The interplay between previous life experience factors and the workplace context has a significant impact on the perception and management of workplace stimuli. Those with more developmental assets, garnered through life experience, are less likely to experience workplace stimuli as stressful, reducing their risk of emotional exhaustion and improving their ability to thrive. Implications for nursing: Understanding how interplay impacts the ability to thrive versus survive informs new graduate transition support efforts and enables an ability to articulate the compounding nature of common novice nurse stressors.