Increasing emergency department admissions for chemsex-related intoxications in Barcelona, Spain, among people living with HIV: an observational study from 2018 to 2020

Toxic-Induced Encephalopathy Following Chemsex in a Young HIV-Positive Male: A Complex Case of Acute Cognitive Impairment with Anterograde Amnesia and Behavioral Alterations

BACKGROUND

A broadened clinical spectrum of concomitant complications emerges among the escalating incidence of substance use, particularly within the 'chemsex' context. This case exemplifies the profound neurotoxic repercussions and neurological risk of chemsex in a young HIV-positive male and addresses the multifaceted challenges of such evolving paradigms in substance utilization.

CLINICAL FINDING

After consuming cannabis, poppers, methamphetamine, and cocaine, a 28-year-old HIV-positive male exhibited significant neurological and cognitive impairment. The initial presentation included dysarthria and profound anterograde amnesia. Laboratory findings showed leukocytosis with a PCR of 3 mg/dl - elevated cerebrospinal fluid protein levels with no cells. Urine toxicology returned positive for cannabis and amphetamines. A brain CT scan revealed bilateral and symmetrical hippocampi and pale globes hypodensity, indicative of toxic-metabolic encephalopathy. MRI further identified lesions in the globus pallidus, cerebellum, and hippocampi. Following the detection of toxic encephalopathy, Initial neuropsychological was performed screening using the Montreal Cognitive Assessment (MoCA), which highlighted immediate memory deficits. An in-depth neuropsychological assessment conducted 3 weeks later included the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV), the Rey Auditory Verbal Learning Test (RAVLT), and tests for visuospatial skills, motor functions, and memory recall. The evaluations revealed pronounced anterograde amnesia, persistent long-term memory inconsistencies, and notable executive function challenges, detailed in Table 1.

CONCLUSIONS

The detailed analysis of this case underpins the severe neurological consequences that can manifest from heavy substance use. Comprehensive diagnostic evaluations, including neuroimaging and neuropsychological assessments, are crucial in elucidating the full spectrum of substance-induced cognitive impairments. There is an urgent need for enhanced public awareness and preventative measures, especially in the context of chemsex, to bring forth multifaceted health, social, and government implications that modern society must adeptly navigate.

Interventions, Barriers, and Facilitators to Address the Sexual Problems of Gay, Bisexual and Other Men Who Have Sex with Men Living with HIV: A Rapid Scoping Review

Sexual problems are common among gay, bisexual, and other men who have sex with men (GBM) after diagnosis with HIV. However, these are often overlooked in care and research, where sexual risk reduction and biomedical aspects of sexual health tend to dominate. We conducted a rapid scoping review to investigate which sexual problems of GBM living with HIV are addressed by interventions, and the barriers and facilitators to their implementation. Literature from high-income countries published in English since 2010 was reviewed. Medline, Embase, PsycInfo, and Scopus databases were searched on July 4, 2022. Targeted sexual problems were categorized according to the ten dimensions of Robinson's Sexual Health Model, and barriers and facilitators, according to the five domains of the Consolidated Framework for Implementation Research (CFIR). Interventions focused solely on the dimension of Sexual Health Care/Safer Sex were excluded. Relevant information was extracted from the qualifying documents with NVivo 12 software for content analysis. Fifty-two documents were included, referring to 37 interventions which mainly took place in the United States (n = 29/37; 78%), were group-based (n = 16; 41%), and used counselling techniques (n = 23; 62%; e.g., motivational interviewing, cognitive-behavioral therapy). Their settings were mostly primary care (n = 15; 40%) or community-based (n = 16; 43%). On average, interventions addressed three sexual health dimensions (SD = 2; range: 1-10). The most targeted dimension was Sexual Health Care/Safer Sex (n = 26; 70%), which concerned sexual risk reduction. Next, Challenges (n = 23; 62%), included substance use (n = 7; 19%), sexual compulsivity (n = 6; 16%), sexual abuse (n = 6; 16%), and intimate partner violence (n = 4; 11%). Third was Talking About Sex (n = 22; 59%) which mostly concerned HIV disclosure. About a third of interventions addressed Culture/Sexual identity (n = 14; 38%), Intimacy/Relationships (n = 12; 33%), and Positive sexuality (n = 11; 30%). Finally, few targeted Body Image (n = 4; 11%), Spirituality (n = 3; 8%), Sexual Anatomy Functioning (n = 2; 5%) or Masturbation/Fantasy (n = 1; 3%). Forty-one documents (79%) mentioned implementation barriers or facilitators, particularly about the characteristics of the interventions (41% and 78%, respectively; e.g., cost, excessive duration, acceptability, feasibility) and of the individuals involved (37% and 46%; e.g., perceived stigmatization, provider expertise). The other three CFIR dimensions were less common (5%-17%). The search strategy of this review may not have captured all eligible documents, due to its limit to English-language publications. Overall, most interventions incorporated a focus on Sexual Health Care/Safer Sex, at the expenses of other prevalent sexual problems among GBM living with HIV, such as intimate partner violence (Challenges), erectile dysfunction (Sexual Anatomy Functioning), and Body Image dissatisfaction. These findings suggest they could receive more attention within clinical care and at the community level. They also highlight the importance of cost-effective and acceptable interventions conducted in non-stigmatizing environments, where patients' needs can be met by providers who are adequately trained on sexuality-related topics.

Getting Inside the Mind of Gay and Bisexual Men Who Have Sex with Men with Sexualized Drug Use - A Systematic Review

Objectives

Sexualized Drug Use (SDU) consists of using any drug purposely before or during sex with the intent of modifying sex experiences. SDU is especially practiced among Gay and Bisexual Men who have Sex with Men (GBMSM). This study aims to review the relevant literature to identify and summarize the reasons reported by GBMSM to engage in SDU.

Methods

A systematic review of the literature using PubMed/Medline, Scopus, Google Scholar, and PsycINFO, comprising qualitative and quantitative papers published between 2010 and 2022, was conducted with a narrative synthesis of the findings. PRISMA guidelines were followed.

Results

Our search identified 1400 publications, of which 23 were included. Reasons to engage in SDU were aggregated as follows: (1) Enhancing sexual sensations and performance, (2) Achieving hedonic mental and emotional states, (3) Tackling negative thoughts and feelings, and (4) Social motivations. Different sample methods and ways of asking for motivations may limit the internal validity of these conclusions.

Conclusion

Both individual and social factors are involved in the decision to engage in SDU. SDU practices should not be medicalized, however therapeutic support if needed should provide multidisciplinary, pleasure-centered, harm-reducing care interventions, specifically designed for these minorities of GBMSM.

Alcohol perturbed locomotor behavior, metabolism, and pharmacokinetics of gamma-hydroxybutyric acid in rats

Gamma-hydroxybutyric acid (GHB), both a metabolic precursor and product of gamma-aminobutyric acid (GABA), is a central nervous system depressant used for the treatment of narcolepsy-associated cataplexy and alcohol withdrawal. However, administration of GHB with alcohol (ethanol) is a major cause of hospitalizations related to GHB intoxication. In this study, we investigated locomotor behavior as well as metabolic and pharmacokinetic interactions following co-administration of GHB and ethanol in rats. The locomotor behavior of rats was evaluated following the intraperitoneal administration of GHB (sodium salt, 500 mg/kg) and/or ethanol (2 g/kg). Further, time-course urinary metabolic profiling of GHB and its biomarker metabolites glutamic acid, GABA, succinic acid, 2,4-dihydroxybutyric acid (OH-BA), 3,4-OH-BA, and glycolic acid as well as pharmacokinetic analysis were performed. GHB/ethanol co-administration significantly reduced locomotor activity, compared to the individual administration of GHB or ethanol. The urinary and plasma concentrations of GHB and other target compounds, except for 2,4-OH-BA, were significantly higher in the GHB/ethanol co-administration group than the group administered only GHB. The pharmacokinetic analysis results showed that the co-administration of GHB and ethanol significantly increased the half-life of GHB while the total clearance decreased. Moreover, a comparison of the metabolite-to-parent drug area under the curve ratios demonstrated that the metabolic pathways of GHB, such α- and β-oxidation, were inhibited by ethanol. Consequently, the co-administration of GHB and ethanol aggravated the metabolism and elimination of GHB and enhanced its sedative effect. These findings will contribute to clinical interpretation of GHB intoxication.

Understanding Sexualized Drug Use: Substances, Reasons, Consequences, and Self-Perceptions among Men Who Have Sex with Other Men in Spain

Sexualized drug use (SDU) has been identified as a health risk factor among gay, bisexual, and other men who have sex with men (GBMSM). This study aimed to analyze the associations between SDU frequency and a broad set of substances, motives, consequences, and self-perceptions. Sampling was conducted through an online survey. The final sample consisted of 185 GBMSM aged between 18 and 78 years old (mean age = 38.38, SD = 11.52) who engaged in SDU. We analyzed the frequency of SDU in terms of practicing it "once," "moderately" ("once a month or less" or "a few times a month"), or "frequently" (from "once a week" to "daily") during the previous 18 months. A questionnaire was administered through which sociodemographic variables, substances, reasons, consequences, and self-perceptions of SDU practice were analyzed. Participants who did so frequently were significantly more likely to use mephedrone, methamphetamine, and GHB/GBL than those who performed SDU less often (large effect sizes). In addition, habitual SDU was associated with motivations to achieve pleasurable emotions and sensations and manage negative feelings. Health implications, such as blackout moments, were also significantly related to frequent SDUs. Finally, those who practiced frequent SDU perceived it as a severe problem and wanted to control it. These data indicate the importance of raising awareness of chemsex as a public health problem among GBMSM. Specific identification, education, and prevention programs need to be strengthened to reduce the incidence of the most undesirable implications of SDU among GBMSM.

Do ART and Chemsex Drugs Get Along? Potential Drug-Drug Interactions in a Cohort of People Living with HIV Who Engaged in Chemsex: A Retrospective Observational Study

INTRODUCTION

People living with HIV (PLWH) who engaged in chemsex are at risk of potential drug-drug interactions (pDDIs) with recreational drugs. This study aimed to characterize pDDIs between antiretroviral treatment (ART) and chemsex drugs and evaluate their association with unscheduled relevant hospital consultations.

METHODS

We conducted a single-center, retrospective, observational study in a series of gay, bisexual, and other men who have sex with men (gbMSM) living with HIV who engaged in chemsex and who attended a tertiary hospital in Barcelona, Spain, from February 2018 through August 2019. Associations between all recorded pDDIs and relevant unscheduled consultations were estimated using the incidence rate (IR) per 100 person-years of those events compared between patients with no pDDI (green flag) or moderate severity pDDI (orange flag) with patients with high severity pDDI (red flag) using the incidence rate ratio (IRR).

RESULTS

Among 172 PLWH engaged in chemsex, 249 ART regimens were prescribed: 44% based on integrase inhibitors, 30% on boosted ART, and 26% based on non-nucleoside reverse transcriptase inhibitors. The substances and recreational drugs most frequently used were erectile dysfunction agents (83%), methamphetamine (79%), GHB (77%), and alkyl nitrites (71%). Polydrug use was reported in 52%. We observed 2048 pDDIs. Of these, 23% were orange flag pDDIs; 88% related to boosted ARTs. The IR of the 285 unscheduled relevant episodes in patients with orange flag pDDIs was 64.67 (95% CI 40.07-89.28). The IRR of green flag pDDIs was 1.05 (95% CI 0.60-1.8; p = 0.876).

CONCLUSION

One in four pDDIs were of moderate severity but no significant increase in the incidence of unscheduled relevant consultations was observed. A high number of unscheduled consultations, predominantly for psychiatric events and intoxication, were observed. Beyond using non-boosted ART to minimize pDDIs, other factors related to the practice of chemsex must be addressed, in order to offer a better approach.