A method of delivering anaesthetics to spontaneously breathing patients in the prone position was developed. The arterial blood gases of eighteen patients undergoing short-stay surgery and using this technique were analysed. The results showed the influence of premedication on arterial pH and PCO2 levels but they do not differ from accepted values for similar anaesthesia on supine patients. The advantages and disadvantages of this technique are discussed.
CalveryR.K., Ty-SmithN., JonesC.W., Prys-RobertsC., EgerE.Ventilatory and cardiovascular effects of enflurane anaesthesia during spontaneous ventilation in man. Anesth Analg1978; 57: 610–618.
4.
MillerR.D.The immediate preinduction period in Anaesthesia 2nd ed. Churchill Livingstone1986; 403–408.
KnillR.L., ClementJ.L.Variable effects of anaesthetics on ventilatory response to hypoxaemia in man. Can Anaesth Soc J1982; 29: 93.
7.
MuratI., ChaussianM., HamzaJ., Saint MauriceC.L.The respiratory effects of isoflorane and halothane in spontaneously breathing children. Anaesthesia1987; 42: 711–718.
8.
LindahlS.G.E., JohannessonG.P.Ventilatory CO2 response, respiratory drive and time in children anaesthetised with halothane, enflurane and isoflurane. Eur J Anaesthesiol1987; 4: 313–326.