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. 2025 Mar;134(3):879-881.
doi: 10.1016/j.bja.2024.12.018. Epub 2025 Jan 24.

Utilising electronic anaesthesia records to audit nitrous oxide consumption and waste, and implementation of a loss monitoring system

Michelle Bee Hua Tan  1 , William Gagnon  2 , Huae Min Tham  3 , Li Wen Ong  4 , Bernard Tiang Guan Koh  5 , Srinath Sridharan  5 , Xuan Han Koh  6 , Jo-Anne Yeo  3
Affiliations

Utilising electronic anaesthesia records to audit nitrous oxide consumption and waste, and implementation of a loss monitoring system

Michelle Bee Hua Tan et al. Br J Anaesth. 2025 Mar.
No abstract available

Keywords: carbon emissions; green initiatives; net zero healthcare; nitrous oxide; sustainable healthcare.

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Conflict of interest statement

Declaration of interest The authors declare that they have no conflicts of interest and have no relationships and activities to disclose.

Figures

Fig 1
Fig 1
Stacked area chart of percentage of total N2O procurement volume against time. Residual N2O was defined as 20% of total procurement volume.
See this image and copyright information in PMC

References

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    1. Seglenieks R., Wong A., Pearson F., McGain F. Discrepancy between procurement and clinical use of nitrous oxide: waste not, want not. Br J Anaesth. 2022;128:e32–e34. - PubMed
    1. Thomas M.A.F., Ward C.J., Sinnott M.E., et al. Nitrous Oxide Manifold and Other Reduction of Emissions (NoMoreGas): a multicentre observational study evaluating pre-utilisation loss of nitrous oxide. Br J Anaesth. 2024;133:1427–1434. - PubMed
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