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Measuring anaesthetic gas capture in clinical practice a single-centre pilot study
Healthcare and clinical impacts
Resources, Conservation and Recycling April 2025
Date (DD-MM-YYYY)
22-01-2025 to 22-07-2025
Available on-demand until 22nd July 2025
Cost
Subscription Required
Education type
Article
CPD subtype
On-demand
Description
Introduction
Waste volatile anaesthetic agents are greenhouse gases and are emitted unmodified into the atmosphere. New technologies exist that can capture these, claiming up to 99.9 % capture efficiency under ideal circumstances. We assessed one system to determine sevoflurane capture during routine clinical anaesthesia in our hospital.
Methods
We assessed sevoflurane delivery during clinical use. Sevoflurane and water mass captured by the capture canister relative to volatile administered to the patient was measured using the sum of mass change of vaporisers and canisters. The composition of captured contents was analysed by the manufacturer.
Results
2229.4 g of sevoflurane was lost from all vaporisers and mass gained by the SID-cans totalled 1161.4 g comprising water and volatile. Only 58.1 % of sevoflurane administered was available for capture.
Conclusion
If industry testing of volatile capture mass is correct, almost halving our institution's volatile anaesthesia emissions could be achieved with current practice patterns.
Contact details
Email address
Telephone number
+44 20 7424 4200

125 London Wall
London
EC2Y 5AS