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Monitoring use of inhalational anaesthetic agents in the operating theatre. Can raising awareness and education of anaesthetists influence practice to reduce waste?

Low With the Flow; The effect of education, visual prompts and a proposed accepted standard on waste reduction of anaesthetic gases in operating rooms.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12623000681651
Enrollment
250
Registered
2023-06-26
Start date
2023-04-01
Completion date
2023-10-01
Last updated
2023-07-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Sevoflurane is used to induce and maintain anaesthesia. Use of this drug is associated with an environmental and financial impact. Nitrous oxide is also used to maintain anaesthesia. After use in theatre, these gases are expelled to the environment outside the hospital and contribute to global warming. We have a responsibility to reduce waste and care for the enviroment. Use per case and waste will be reviewed. After a period of intervention including raising awareness and education, use per case and waste will be reevaluated to determine if the use, average flow rate and the ratio between uptake and consumption have fallen.

Interventions

Raising awareness of the environmental and financial costs of volatile agents in the operating theatre and education as to how to reduce waste. The intervention will include education in the form of a 40 minute didactic powerpoint presentation at the start of the project. Cognitive aids in the form of reminders to reduce flows will be placed on every anaesthetic machine in the theatre environment. These reminders will be checked weekly to ensure that they are still in place. A poster will also

Raising awareness of the environmental and financial costs of volatile agents in the operating theatre and education as to how to reduce waste. The intervention will include education in the form of a 40 minute didactic powerpoint presentation at the start of the project. Cognitive aids in the form of reminders to reduce flows will be placed on every anaesthetic machine in the theatre environment. These reminders will be checked weekly to ensure that they are still in place. A poster will also be placed in the anaesthetic department next to the daily rosters to remind anaesthetists of the low flow approach. An outline of ways to reduce flows and waste will be distributed to all anaesthetists via the monthly bulletin which is delivered by email. Anaesthetists will be asked to check their logbook to ensure compliance with the target. In the initial phase after the education, one staff member will personally move through theatres to assess the compliance with the program and explain approaches for adjusting practice in real time.

Sponsors

Samuel Costello
Lead SponsorIndividual

Study design

Allocation
Non-randomised trial
Intervention model
Other
Primary purpose
Educational / counselling / training
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

All patients presenting to St Vincent's hospital undergoing anaesthesia with inhalational agents in the operating theatre.

Exclusion criteria

Anaesthesia where a volatile anaesthetic agent was not used as the maintenance agent Anaesthesia using gas induction

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026