Desflurane consumption during automated closed-circuit delivery is higher than when a conventional anesthesia machine is used with a simple vaporizer-O2-N2O fresh gas flow sequence
2008

Desflurane Consumption in Anesthesia Machines

Sample size: 34 publication Evidence: moderate

Author Information

Author(s): De Cooman Sofie, De Mey Nathalie, Dewulf Bram BC, Carette Rik, Deloof Thierry, Sosnowski Maurice, De Wolf Andre M, Hendrickx Jan FA

Primary Institution: Institut Jules Bordet, Université Libre de Bruxelles (U.L.B.)

Hypothesis

Desflurane consumption with an automated closed-circuit anesthesia machine is higher than with a conventional anesthesia machine.

Conclusion

Agent consumption with an automated closed-circuit anesthesia machine is higher than with a conventional anesthesia machine when the latter is used with a specific vaporizer-FGF sequence.

Supporting Evidence

  • Desflurane consumption was higher in the Zeus group at all times.
  • Patients in the Zeus group were taller than those in the ADU group.
  • Statistical analysis showed significant differences in desflurane consumption between the two groups.

Takeaway

Using a special anesthesia machine uses more gas than a regular one, even though it tries to save gas. We can make it use less gas by changing how it works.

Methodology

Thirty-four ASA PS I or II patients received desflurane in O2/N2O, comparing two groups: one using a conventional anesthesia machine and the other using an automated closed-circuit anesthesia machine.

Limitations

The study was limited to ASA PS I or II patients and specific types of surgery.

Participant Demographics

Patients were ASA PS I or II, undergoing plastic, urologic, or gynecologic surgery, with an average age of 54 years.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2253-8-4

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