منابع مشابه
Anaesthetic Breathing Systems
The function of breathing is to maintain a supply of oxygen to the lungs for oxygenation of the tissues, and to remove carbon dioxide from the body. When used for spontaneous ventilation, a breathing circuit must enable a patient to breathe satisfactorily without significantly increasing the work of breathing or the physiological deadspace. It must also conduct inhalational anaesthetic agents t...
متن کاملWill we ever have a universal anaesthetic breathing system.
In this issue of the JOURNAL, Humphrey and his colleagues describe a version of the A.D.E. anaesthetic breathing system 1'2 which they feel is optimal for all patients. Humphrey et al . have shown that the "A.D.E. low-flow universal" system functions as a modified D (Mapleson's classification 3) or Bain circuit for controlled ventilation and, with the switch of a single lever, as a modified Map...
متن کاملImproving the efficiency of the drawover anaesthetic breathing system.
We investigated modifications to the reservoir tube usually used in drawover anaesthetic breathing systems as a method of improving its efficiency and performance. The resulting oxygen concentration was recorded at different oxygen flow rates whilst an artificial lung was being ventilated over a range of minute volumes. Addition of a reservoir bag and valves significantly increased the measured...
متن کاملFresh gas flow requirements using the ADE anaesthetic system during late pregnancy.
Thirty-two pregnant patients at term undergoing elective Caesarean section were ventilated with a non-co-axial ADE anaesthetic system (E mode) supplied with fresh gas flows (FGF) of either 70 or 100 ml kg-1 min-1, on a random basis. Ventilation with an FGF of 70 ml kg-1 min-1 produced mean PaCO2 and PE' CO2 values of 6.48 +/- 1.15 kPa and 6.41 +/- 0.76 kPa, respectively. Patients were thus hype...
متن کاملAnaesthetic breathing systems in the accident and emergency department.
We report two cases where patients with an acute head injury developed hypercapnia as a result of the inappropriate use of the Magill breathing circuit. The Magill circuit is inefficient when used for controlled ventilation because the patient is ventilated with his own expired gas and develops hypercapnia. The suitability of alternative breathing systems are discussed.
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1990
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1990.tb14760.x