title: Sevoflurane anaesthesia with the Komesaroff vaporizer inside the circle system.
abstract: This study assessed the safety of sevoflurane anaesthesia using two Komesaroff vaporizers inside the circle with both spontaneous and controlled ventilation. Sevoflurane concentrations were continuously monitored using a mass spectrometer and the anaesthetic depth was easily controlled. Involuntary movements occurred in eight patients and breath-holding occurred in five patients after inhalational induction. With continuous monitoring of sevoflurane concentrations, induction and maintenance of anaesthesia using a vaporizer inside the circle is safe during both controlled and spontaneous ventilation. However the high incidence of involuntary movements may limit the feasibility of induction in spontaneously breathing patients.
authors.affiliation: Department of Anaesthesia, National University Hospital, Singapore, Republic of Singapore.
authors.forename: S S
authors.initials: SS
authors.lastname: Dhara
authors.forename: E H
authors.initials: EH
authors.lastname: Liu
mesh_terms: D000328:Adult; D000769:Anesthesia, Inhalation / Q000295:instrumentation; D018685:Anesthetics, Inhalation; D020820:Dyskinesias; D006801:Humans; D008738:Methyl Ethers; D009330:Nebulizers and Vaporizers; D000077149:Sevoflurane
chemical_list: D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D000077149:Sevoflurane