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 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 کاملIsoflurane in a circle system with low gas flow.
Isoflurane was administered from a Goldman vaporizer to a circle breathing system with low fresh gas flows. The uptake and vapour concentration of isoflurane were compared in two groups of spontaneously breathing patients receiving oxygen alone (n = 19), or nitrous oxide and oxygen (n = 30). Anaesthesia was maintained successfully in all patients. The authors believe this to be a safe and econo...
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...
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ژورنال
عنوان ژورنال: BJA Education
سال: 2017
ISSN: 2058-5349
DOI: 10.1093/bjaed/mkx013