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KMID : 0356919920250061158
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Korean Journal of Anesthesiology
1992 Volume.25 No. 6 p.1158 ~ p.1162
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Artrial Oxygen Tension Measurement during Nitrous oxide-Oxygen Anesthesia
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Abstract
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In 30 ASA class I patients aged 15~30 undergoing peripheral operations, PaO2 and SaO2 were determined while the mixture of nitrous oxide and oxygen was administered at the inspired oxygen concentration of 21%.
Anesthesia was maintained with 75% or so nitrous oxide and small dose fentanyl, and ventilation was adjusted to maintain normoventilation with tidal volume increased to 15ml/kg.
PaO2 and SaO2 during anesthesia were increased significantly when compared to those which were measured immediately prior to anesthetic induction, that is to say, no one developed hypoxemia despite administration of the same inspired oxygen
concentration as that of room air.
These results indicate that, in case rapid emergence from anesthesia is required, balanced anesthesia with high concentration nitrous oxide and small dose fentanyl should be very useful and safe so long as we make good selections of patients and
deliver
large tidal volumes to them during artificial ventilation.
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KEYWORD
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