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....

中文翻译：

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麻醉师教育与吸入卤化麻醉剂使用相关的碳足迹之间的关联

关于 2019 年 6 月与使用吸入卤化麻醉剂相关的碳足迹。我们旨在评估实施此类宣传活动是否与减少与吸入卤化麻醉剂相关的碳足迹有关。方法：这项回顾性队列研究于 2015 年 1 月 1 日至 2020 年 2 月 29 日在法国里昂临终关怀医院的 4 家医院进行。2018 年 1 月成立的可持续麻醉小组组织了关于可持续麻醉实践的信息会议。此外，2019 年 6 月还开展了有关吸入卤化麻醉剂碳足迹的具体宣传活动；随后是在线填写的问卷。记录七氟醚、地氟醚和异丙酚的每月采购量，并计算了与地氟醚和七氟醚相关的围手术期排放物的估计每月碳足迹。通过分段回归分析了 2015 年 1 月至 2020 年 2 月的中断时间序列数据，在分析中考虑了两种干预措施（可持续麻醉组的建立和特定的信息宣传活动）并调整了 2 个混杂因素（数据的季节性和数量）全身麻醉用途）。结果：在研究医院的 641 名麻醉师中，121 名（19%）参加了有关吸入卤化麻醉剂碳足迹的信息会议，180 名（28%）完成了问卷调查。分析中考虑了所有 641 名提供者的麻醉活动。可持续麻醉小组成立后，七氟醚和地氟醚的碳足迹开始下降：斜率显着变化 (P < .01) 并显着变为负值，从 −0.27（95% 置信区间 [CI]，−1.08 至 0.54）吨月−1 至 −14.16 （95% CI，-16.67 至 -11.65）吨.月-1。特定宣传活动后，碳足迹持续下降，斜率为-7.58（95% CI，-13.74 至-1.41）吨.月-1（P = .02），与前期无显着差异(P = .07)。结论：可持续麻醉组的设置与卤化麻醉剂相关碳足迹的显着减少有关。