Calculating oxygen consumption during low-flow anaesthesia
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چکیده
منابع مشابه
Myocardial blood flow and oxygen consumption during halothane-nitrous oxide anaesthesia for coronary revascularization.
The effects of halothane on myocardial blood flow and myocardial oxygen balance were studied in seven male patients with stable angina and normal left ventricular function. Patients were receiving maintenance doses of beta-receptor antagonists and underwent coronary artery bypass surgery. Anaesthesia consisted of halothane and 50% nitrous oxide in oxygen. Halothane decreased myocardial blood fl...
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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...
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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...
متن کاملCerebral blood flow and cerebral oxygen consumption during hypothermia.
C URRENTLY there is widespread interest in the physiologic effects of cold, and in the use of hypothermia with surgery (I, 2). Although no gross neurologic derangements have been observed following the application of this technique in man and experimental animals (3, 4), it seemed appropriate that a special study be made of the effects of hypothermia on cerebral physiology. Cerebral blood flow,...
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We have studied the effects of flow and dobutamine on systemic haemodynamic variables, oxygen delivery (DO2) and oxygen consumption (VO2) in 20 patients during cardiopulmonary bypass (CPB) with mild hypothermia (34 degrees C). In a subgroup of seven patients, we also studied the effects on gastric microcirculatory blood flow (MCF) using laser Doppler flowmetry. During CPB, measurements were mad...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 2017
ISSN: 0003-2409
DOI: 10.1111/anae.13899