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  • Title: The estimation of inspired desflurane concentration in a low-flow system.
    Author: Gowrie-Mohan S, Muralitharan V, Lockwood GG.
    Journal: Anaesthesia; 1996 Oct; 51(10):904-7. PubMed ID: 8984860.
    Abstract:
    We have examined the predictability of inspired desflurane concentration during low-flow anaesthesia using a to-and-fro breathing system. Twenty-two adult patients requiring mechanical ventilation of the lungs during surgery took part in the study. Using a fresh gas flow of 1 l.min-1, the ratio of inspired desflurane concentration to desflurane vaporizer setting was found to be approximately 0.75 after 9 min of anaesthesia and at 2 l.min-1 fresh gas flow the ratio was approximately 0.9 after 2 min of anaesthesia. These ratios were maintained throughout the procedure, except for a few minutes following each change in vaporizer setting.
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