Controlled ventilation using isoflurane with an in-circle vaporiser.
We studied 19 patients anaesthetised for routine surgery using isoflurane delivered from a Komesaroff vaporiser mounted within a circle system. Their lungs were ventilated using a Penlon Nuffield ventilator attached to the circle system by a trunk of tubing. Fresh gas flow rates of 1, 2 or 31.min-1 were used. The inspired agent concentration was measured using a Datex Ultima multigas analyser and was found to be stable and easily controlled.
Department of Anaesthetics, Northwick Park Hospital, Harrow, UK.
D
D
Wright
S
S
Brosnan
B
B
Royston
D
D
White
D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D018685:Anesthetics, Inhalation / Q000008:administration & dosage*; D004334:Drug Administration Schedule; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing; D007530:Isoflurane / Q000008:administration & dosage*; D009330:Nebulizers and Vaporizers
D018685:Anesthetics, Inhalation; D007530:Isoflurane