[Health environment. Sustainable anaesthesia : low fresh gas flow with sevoflurane use].

In a context where climate change is a critical issue, anesthesia, particularly through the inhalation of halogenated gases like sevoflurane, represents a significant source of greenhouse gas (GHG) emissions. To promote sustainability, reducing the fresh gas flow (FGF) is recommended to minimize waste, thus contributing to a decrease in GHG emissions. Several international and Swiss recommendations encourage the adoption of low-flow anesthesia, showing that it does not negatively impact renal function. However, Swissmedic guidelines have not yet aligned with these recommendations, limiting the evolution towards more sustainable practices. Reducing FGF would support ecological sustainability, public health, and reduce the costs associated with halogenated gas waste.