Anaesthetic drugs & techniques
Reducing Volatile Anesthetic Waste Using a Commercial Electronic Health Record Clinical Decision Support Tool to Lower Fresh Gas Flows
Authors' conclusion
A commercial AIMS-based decision support tool can be adopted to change provider FGF management patterns and reduce volatile anesthetic consumption in a sustainable fashion.
Study context
- Population
- Anesthetic cases using sevoflurane or desflurane during maintenance of anesthesiasevoflurane 44,899 pre/26,911 post
- Comparison
- Postintervention vs Preintervention
- Outcome
- Mean FGF (L/min) and volatile agent consumption (mL/MAC-h)
Methodological detailssegmented regression, adjusted for potential confounding variables, before-after
- Segmented regression
- Adjusted for potential confounding variables
- Before-after
Main finding
As reported in the abstract
Mean FGF (L/min) and volatile agent consumption (mL/MAC-h), segmented regression of interrupted time series · immediately after implementation of the intervention
- Decrease in mean FGF, sevoflurane
- 0.6 L/min (95% CI, 0.6-0.6 L/min; P < .0001)
- Decrease in mean FGF, desflurane
- 0.2 L/min (95% CI, 0.2-0.3 L/min; P < .0001)
- Decrease in mL/MAC-h, sevoflurane
- 3.8 mL/MAC-h (95% CI, 3.6-4.1 mL/MAC-h; P < .0001)
- Decrease in mL/MAC-h, desflurane
- 4.1 mL/MAC-h (95% CI, 2.6-5.6 mL/MAC-h; P < .0001)
- Postintervention slopes for FGF and mL/MAC-h statistically less negative than preintervention slopes, sevoflurane
- P < .0001
- Postintervention slopes for FGF and mL/MAC-h statistically less negative than preintervention slopes, desflurane
- P < .01
Further findings
Slopes of FGF and mL/MAC-h, post vs preintervention
- Postintervention slopes statistically less negative than preintervention slopes, sevoflurane
- P < 0.0001
- Postintervention slopes statistically less negative than preintervention slopes, desflurane
- P < 0.01
Original publication
Reducing Volatile Anesthetic Waste Using a Commercial Electronic Health Record Clinical Decision Support Tool to Lower Fresh Gas Flows. Anesth Analg. Published 4 November 2022. doi:10.
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