Changing patterns in anesthetic fresh gas flow rates over 5 years in a teaching hospital

Anesthesia and Analgesia
R Ross Kennedy, Richard A French

Abstract

Reducing anesthetic fresh gas flows can reduce volatile anesthetic consumption without affecting drug delivery to the patient. Delivery systems with electronic flow transducers permit the simple and accurate collection of fresh gas flow information. In a 2001 audit of fresh gas flow, we found little response to interventions designed to foster more efficient use of fresh gas. We compared current practice with our earlier results. Flow data were collected in areas with a mix of general and acute surgery in March and November 2001, and again during 2006, by recording directly from the Datex ADU to a computer every 10 s. We extracted the distribution of flow rates when a volatile anesthetic was being administered. Data collection in March 2001 and 2006 was not advertised. In 2001, the mean flow rates were 1.95 and 2.1 L/min with a median flow of 1.5 L/min. In 2006, the mean was 1.27 and the median in the range 0.5-1.0 L/min. Isoflurane use decreased from 47% in 2001 to 4% in 2006. Fresh gas flows used in our department have decreased by 35% over 4 years. Although the absolute change in flow rate is not large, this represents potential annual savings of more than $US130,000. This occurred without specific initiatives, suggesting an...Continue Reading

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Citations

Jan 8, 2013·British Journal of Anaesthesia·S Singaravelu, P Barclay
Dec 14, 2011·Current Opinion in Anaesthesiology·Elena K Rinehardt, Murali Sivarajan
Mar 15, 2012·Anesthesia and Analgesia·Jeffrey M Feldman
Jan 25, 2014·Journal of Clinical Monitoring and Computing·R Ross Kennedy
Oct 12, 2013·Journal of Clinical Monitoring and Computing·Umberto LucangeloWalter A Zin
Dec 23, 2014·Anesthesiology Research and Practice·Asha TyagiUttam Chandra Verma
Mar 20, 2010·Journal of Clinical Monitoring and Computing·H HeijbelJan Jakobsson
Aug 14, 2010·The Kaohsiung Journal of Medical Sciences·Volkan HanciIşil Ozkoçak Turan
Mar 12, 2013·Revista española de anestesiología y reanimación·A Villalonga
May 21, 2017·Journal of Medical Systems·David B WaxMatthew A Levin
Feb 7, 2018·Journal of Anesthesia·Hai-Bo DengShi-Yuan Xu
Nov 8, 2013·Anesthesiology·R Ross Kennedy, Richard A French
Nov 8, 2013·Anesthesiology·Bala G NairHoward A Schwid
Dec 18, 2009·Anaesthesia and Intensive Care·T van ZundertA De Wolf
Apr 14, 2011·Anaesthesia and Intensive Care·R R Kennedy, R A French

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