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Cannabinoid hyperemesis syndrome in two French emergency departments: a prospective cohort

Abstract : Chronic cannabis use can be associated with uncontrollable vomiting and abdominal pain. Diagnostic criteria for cannabinoid hyperemesis syndrome (CHS) were defined in 2012 by Simonetto et al. The objectives of this study were to describe the prevalence of CHS, the patients' epidemiological characteristics, and to show the difficulties encountered in caring for these patients in emergency departments, the extent of health care and an unsuitable follow-up in general practices. A prospective cohort of patients with CHS was recruited among a target population of patients leaving the adult emergency services of the Marseille hospitals Nord and La Timone between October 2017 and July 2018, with abdominal pain syndrome of unidentified etiology. Inclusion criteria for the CHS cohort were chronic cannabis use associated with nausea and vomiting. There were 48 patients included in the CHS cohort who took cannabis daily, in a target population of 2 848 patients (i.e. 1.6%). A hot shower was the most effective symptomatic treatment in 54.2% of cases. Patients suffering from CHS spent significantly more hours in emergency departments (11 vs. 6.5), and, on average, visits were more frequent (4.9 vs. 3). 20.3% of them were hospitalized to continue pain medication. Once out of hospital, follow-up was limited, and weaning off cannabis, the only etiological treatment, was difficult to set up. Informing patients about CHS is essential, and a hot shower could be systematically proposed, thus limiting an unnecessary extent of health care. CHS is genuine, medical staff should be made aware of it in occupational training, and it should be seriously considered in health policies.
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https://www.hal.inserm.fr/inserm-03124214
Contributor : Christine Dupuis <>
Submitted on : Thursday, January 28, 2021 - 3:10:07 PM
Last modification on : Thursday, February 4, 2021 - 8:39:48 AM

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Julie Weiss, Romain Torrents, Baptiste Verhamme, Antoine Roch, Pierre Lazerges, et al.. Cannabinoid hyperemesis syndrome in two French emergency departments: a prospective cohort. Fundamental and Clinical Pharmacology, Wiley, 2020, Online ahead of print. ⟨10.1111/fcp.12580⟩. ⟨inserm-03124214⟩

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