Exposure to ammonia solution due to substance use: a retrospective study from the French poison centres database (2009-2018).

INTRODUCTION: Ammonia solution (ammonium hydroxide) is used to convert cocaine hydrochloride to freebase cocaine. Due to its causticity, unintentional exposure to ammonia in a substance use context can result in injury. The objective of this study was to describe the characteristics of unintentional oral and buccal ammonia solution exposure in a substance use context. METHODS: A retrospective study was conducted using the French poison centres database over a 10-year period (2009-2018). RESULTS: A total of 1,546 files were extracted, and 263 substance users were included. There was a significant increase in the number of these exposures between 2009 and 2018. Unintentional ingestion of ammonia solution was linked to product decanting in 89 per cent of cases. Substance use prior to the exposure and a festive context, such as free parties or teknivals, were identified in 25 per cent and 21 per cent of cases, respectively. Patients received a hospital examination in 87 per cent of cases. The severity of intoxication in substance users was graded as moderate (33 per cent) or severe (15 per cent) using the Poisoning Severity Score. DISCUSSION: The increased number of ammonia solution cases reported was consistent with an increase in the number of crack users in Europe in the same period. Ammonia solution exposure can suggest the possibility of substance use disorders. In such cases, patients can be referred to receive appropriate treatment and support. This study had some limitations, such as the lack of available information due to the retrospective nature of the study and the non-standardized questions asked by the poison centre during the medical phone interviews. CONCLUSION: Oral and buccal ammonia solution exposure in known substance users in France increased between 2009 and 2018. These users were mostly young men. A festive context and decanting were frequent. Patients were mainly referred to emergency departments to receive clinical examination and care. The potential severity of oral or buccal ammonia solution exposure in substance users requires increased vigilance among all healthcare professionals involved in the management of these intoxication cases.

Mandatory immunizations for health students in Lyon (France), overview and evaluation / Obligations d'immunisation des étudiants en santé de Lyon, état des lieux et évaluation

OBJECTIVES: To establish an overview of vaccination amongst health students in Lyon 1 University and to evaluate the implementation of a new verification system of immunization obligations with an electronic vaccination card (EVC) from the “MesVaccins.net” website. METHODS: A questionnaire was sent by the Lyon 1 University Student Health Service (SHS) to the first-year health studies students over the age of 18 in Lyon in 2020-2021 who shared their EVC; exploitation of these EVCs’ data. RESULTS: Amongst all students, 67.4% transmitted their information to the SHS. They reported organizational difficulties in updating (33.3%) and certifying their EVC with a healthcare professional (55.9%). Global satisfaction of the students was 78.0%. This study highlighted many differences between Lyon Est and Lyon Sud campuses, especially about general knowledge of the SHS, visibility of the promotion campaign, rate of students who transmitted their information to the SHS and rate of up-to-date students. Regarding mandatory immunization, 83.4% of the students were up-to-date with diphtheria-tetanus-poliomyelitis, 56.8% with hepatitis B, and 64.7% had done a tuberculin intradermal test; 43.4% of the students were simultaneously up-to-date with these three immunizations. CONCLUSION: The rate of up-to-date students is insufficient. This study stresses the necessity of an early campaign of immunizations promotion, with better access to healthcare professionals able to certify EVCs.

Objectifs: Établir un état des lieux de la vaccination des étudiants en santé de l'université Lyon 1 et évaluer la mise en place d'un nouveau dispositif de vérification des obligations d'immunisation à l'aide du carnet de vaccination électronique (CVE) MesVaccins.net. Méthodes: Questionnaire envoyé par le Service de santé universitaire (SSU) de Lyon 1 aux étudiants majeurs en première année de santé en 2020-2021 ayant partagé leur CVE ; exploitation des données de ces CVE. Résultats: Les étudiants étaient 67,4 % à avoir transmis leurs informations au SSU. Ils ont rapporté des difficultés organisationnelles pour se mettre à jour (33,3 %) et pour faire valider leur CVE par un professionnel de santé (55,9 %). La satisfaction globale des étudiants vis-à-vis de ce dispositif était de 78,0 %. Cette étude a mis en avant plusieurs différences entre les campus de Lyon Est et Lyon Sud, notamment sur la connaissance du SSU, la visibilité de la campagne, le pourcentage d'étudiants qui ont transmis leurs informations et le pourcentage d'étudiants à jour. Concernant les immunisations obligatoires, 83,4 % des étudiants étaient à jour du vaccin diphtérie-tétanos-poliomyélite, 56,8 % de l'hépatite B et 64,7 % avaient pratiqué une intradermoréaction ; 43,4 % des étudiants étaient à jour simultanément de ces trois immunisations. Conclusion: Le pourcentage d'étudiants à jour est insuffisant. Cette étude souligne la nécessité d'une campagne précoce de promotion des immunisations avec un meilleur accès des étudiants à des professionnels de santé validant les CVE.

Association Between Anesthesia Provider Education and Carbon Footprint Related to the Use of Inhaled Halogenated Anesthetics.

BACKGROUND: Inhaled halogenated anesthetics are responsible for half of operating room total greenhouse gas emissions. Sustainable anesthesia groups were set up in 4 Lyon, France, university hospitals (Hospices Civils de Lyon) in January 2018 and have supported a specific information campaign about the carbon footprint related to the use of inhaled halogenated anesthetics in June 2019. We aimed to assess whether implementing such information campaigns was associated with a decrease in the carbon footprint related to inhaled halogenated anesthetics. METHODS: This retrospective cohort study was conducted from January 1, 2015, to February 29, 2020, in 4 hospitals of the Hospices Civils de Lyon in France. Information meetings on sustainable anesthesia practices were organized by sustainable anesthesia groups that were set up in January 2018. In addition, a specific information campaign about the carbon footprint related to inhaled halogenated anesthetics was conducted in June 2019; it was followed by a questionnaire to be completed online. The monthly purchase of sevoflurane, desflurane, and propofol was recorded, and the estimated monthly carbon footprint from desflurane- and sevoflurane-related perioperative emissions was calculated. The interrupted time-series data from January 2015 to February 2020 were analyzed by segmented regression, considering both interventions (setting up of the sustainable anesthesia groups and specific information campaign) in the analysis and adjusting for 2 confounding factors (seasonality of the data and number of general anesthesia uses). RESULTS: Among the 641 anesthesia providers from the study hospitals, 121 (19%) attended the information meetings about the carbon footprint of inhaled halogenated anesthetics, and 180 (28%) completed the questionnaire. The anesthetic activity from all 641 providers was considered in the analysis. After the sustainable anesthesia groups were set up, the carbon footprint of sevoflurane and desflurane started decreasing: the slope significantly changed ( P < .01) and became significantly negative, from -0.27 (95% confidence interval [CI], -1.08 to 0.54) tons.month -1 to -14.16 (95% CI, -16.67 to -11.65) tons.month -1 . After the specific information campaign, the carbon footprint kept decreasing, with a slope of -7.58 (95% CI, -13.74 to -1.41) tons.month -1 ( P = .02), which was not significantly different from the previous period ( P = .07). CONCLUSIONS: The setup of the sustainable anesthesia groups was associated with a dramatic reduction in the carbon footprint related to halogenated anesthetics. These results should encourage health care institutions to undertake information campaigns toward anesthesia providers so that they also take into account the environmental impact in the choice of anesthetic drugs, in addition to the benefits for the patient and economic concerns.