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Year : 2020  |  Volume : 10  |  Issue : 2  |  Page : 64-66

Predicting cost of inhalational anesthesia at low fresh gas flows: impact of a new generation carbon dioxide absorbent

1 Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
2 Department of Internal Medicine, University of Nevada Reno, Reno, NV, USA

Correspondence Address:
MD Alastair E Moody
Department of Anesthesiology, University of Utah, Salt Lake City, UT
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2045-9912.285558

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It is well known that low fresh gas flows result in lower cost of inhalational agents. A new generation of carbon dioxide absorbents allows low flow anesthesia with all anesthetics but these new compounds are more expensive. This study examines the cost of inhalational anesthesia at different fresh gas flows combined with the cost of absorbent. The cost of sevoflurane and desflurane is lower at low fresh gas flows. Paradoxically the cost of isoflurane is cheaper at 2 L/min than at lower fresh gas flows due to increased cost of carbon dioxide absorbent. Therefore low fresh gas flows should be used when feasible with sevoflurane and desflurane, but higher fresh gas flows up to 2 L/min may be more economical with isoflurane during maintenance phase of anesthesia.

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