Smaller-than-expected sevoflurane concentrations using the Sevotec 5 vaporizer at low fill states and high fresh gas flows.
Smaller-than-expected concentrations of sevoflurane were delivered by Sevotec 5 vaporizers (Datex-Ohmeda, Madison, WI) at low-fill states, 8% dialed concentrations, and high fresh gas flows. Clinically, this would lead to prolonged induction times. The risk of complications from prolonged inhaled induction could be increased when using a vaporizer with these characteristics.
Seropian
M A
MA
Department of Anesthesiology, Doernbecher Children's Hospital, Oregon Health Sciences University, Portland, Oregon 97201, USA. seropian@ohsu.edu
Robins
B
B
D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D018685:Anesthetics, Inhalation / Q000008:administration & dosage*; D016010:Binomial Distribution; D004867:Equipment Design; D004868:Equipment Failure; D006801:Humans; D008738:Methyl Ethers / Q000008:administration & dosage*; D009330:Nebulizers and Vaporizers; D010100:Oxygen / Q000008:administration & dosage; D011312:Pressure; D012307:Risk Factors; D000077149:Sevoflurane; D013997:Time Factors
D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D000077149:Sevoflurane; D010100:Oxygen