Abstract

Background: Toxicity by synthetic cannabinoids (SCs) is increasing steadily with limited data concerning their use. Serious adverse effects after acute exposure to SCs include myocardial ischemia, stroke, seizures, coma, and acute kidney injury. Aim: Characterization of the epidemiological pattern of acute toxicity by SCs in patients presented to Poison Control Center of Ain Shams University hospitals (PCC-ASUH), Cairo, Egypt; from January 2018 to June 2019, and severity assessment using poisoning severity score (PSS). Methods: A cross-sectional study included adult patients presented to emergency department of PCC-ASUH from January 2018 to June 2019, with history of acute exposure to SCs. Results: About 541 patients attended the PCC-ASUH with history of acute SCs toxicity and only 448 patients were enrolled to our study. Males outnumbered females (96.43 versus 3.57%, respectively). Strox predominated (72.54%) followed by voodoo (27.45%). Recorded PSS was minor in 42.63% of patients, moderate in 18.97% and severe in 5.36%. Two patients (0.45%) died. Metabolic abnormalities predominated (60%), followed by gastrointestinal manifestations (46.2%). Conclusion: Incidence of SCs toxicity has recently increased. Several variables could worsen PSS in acute SCs poisoning like age, sex, type of SCs, co-ingestion, medical comorbidities, and respiratory acidosis. Recommendations: Early combination of PSS and arterial blood gas analysis could help in identifying patients at risk for acute SCs toxicity.

Highlights

  • Synthetic cannabinoids (SCs) are a heterogeneous group of compounds developed as research tools to explore the endocannabinoid system and as potential therapeutics

  • Synthetic cannabinoids (SCs) demonstrate higher binding affinities to G protein–coupled cannabinoid receptors CB1 and CB2 when compared to tetrahydrocannabinol (THC) which acts as partial agonist at CB1 and CB2 receptors, while SCs act as full agonists

  • 448 patients were enrolled to our study and 93 patients were excluded as they were below 18 years or gave history of having chronic liver disease

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Summary

Introduction

Synthetic cannabinoids (SCs) are a heterogeneous group of compounds developed as research tools to explore the endocannabinoid system and as potential therapeutics. Synthetic cannabinoids (SCs) demonstrate higher binding affinities to G protein–coupled cannabinoid receptors CB1 and CB2 when compared to tetrahydrocannabinol (THC) which acts as partial agonist at CB1 and CB2 receptors, while SCs act as full agonists. Their metabolites have stronger affinities for the previously mentioned receptors resulting in greater potency and longer duration of pharmacologic effects and toxicity (Noble et al, 2019). Recommendations: Early combination of PSS and arterial blood gas analysis could help in identifying patients at risk for acute SCs toxicity

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