منابع مشابه
Low-flow anaesthesia.
Although many anaesthesia machines are equipped with circle rebreathing systems, inhalational anaesthesia remains frequently performed using relatively high fresh-gas flows. The major advantages of rebreathing techniques can be achieved only if the fresh-gas flow is reduced to 1 l.min-1 or less. Although there are potential risks associated with low-flow anaesthesia, modern anaesthesia machines...
متن کاملLow-flow anaesthesia in paediatric patients.
Editor—We were interested in the study regarding carbon monoxide (CO) rebreathing during low-flow anaesthesia (LFA) in paediatric patients. It is reassuring to note that modern anaesthetic circuits do not contribute to CO rebreathing in the context of LFA, as elegantly demonstrated by an in vitro control experiment. Although the technique is becoming increasing popular, even in paediatric pract...
متن کاملAn Adaptive Gpc Approach to Low-flow Anaesthesia
An adaptive method is developed to control the end-tidal isoflurane concentration using a low-flow method. The isoflurane concentration is calculated based on measurements of the end-tidal isoflurane concentration and mean arterial pressure (MAP) using a modelbased multivariable GPC algorithm. The control design allows explicit handling of input and output constrains, accommodates model uncerta...
متن کاملLow-flow anaesthesia and carbon monoxide in paediatric patients.
Editor—We read with interest the paper by Nasr and colleagues regarding carbon monoxide (CO) rebreathing during low-flow anaesthesia (LFA) in infants and children and an earlier study by the same authors. We would like to call attention to two confounding issues. First, they have stated that an electrochemical sensor was used for measurement of CO in these studies in the range 0–2000 ppm, resol...
متن کاملDegradation products of sevoflurane during low-flow anaesthesia.
Low-flow (1 litre min-1) sevoflurane anaesthesia was used in 16 patients undergoing laparoscopic cholecystectomy (group LSC, n = 8) or tympanoplasty (group TP, n = 8), and concentrations of sevoflurane degradation products were measured. Degradation products in the circuit were measured hourly, and end-tidal carbon dioxide concentration, inspired and end-tidal sevoflurane concentrations, and ca...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1995
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1995.tb06189.x