An observation from an online survey: is fresh gas flow used for sevoflurane and desflurane different from isoflurane based anesthesia?

The difference/inconsistency was extremely significant; P < 0.0001 (chi-square test of independence).

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An audit in a teaching hospital found that the average FGF rate at that time was 2 L/min and there was an increasing trend of the use of the more expensive agent, but the FGF used with these expensive agents decreased. 5 The same authors audited the changing trend of FGF used in their department over the period of 2001–2006 and found that the use of FGF decreased by 35% over 4 years. 6 However, the use of LFA is not yet very much prevalent. 2 3 7 A recent study revealed that the mean FGF (L/min) for sevoflurane and isoflurane was 2.55 and 2.33, respectively. 7 Therefore, whether the use of relatively costlier agents influences the FGF used is yet not clear.

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