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KMID : 0061119840120000166
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Bulletin of the Clinical Research Institute
1984 Volume.12 No. 0 p.166 ~ p.166
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An Evaluation of Bllod Gas Analysis in General Anesthesia With Room Air
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Ryu Keoun-Hee
Chin Su-Nam
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Abstract
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So far no reports have been recorded about the anesthetic method using a combination of intravenous general anesthesia and room air ventilation.
As the authors thought that this anesthetic method is safer as the optimal ventilatory volume could be regulated as shown by the blood gas evaluation data, these experiments had been under-taken to´explain the physiological mechanism of arterial oxygen partial pressure during general anesthesia
The physical state of class Ⅰ and Ⅱ of 47 patients weredivided into 3 groups of experimental A, B and C of control group.
Group A and B were anesthetized with intravenous anesthetics and room air ventilation (tidal volume 800 ml in A and 600 ml in B) under use of muscle relaxants.
Group C was anesthetized with halothane, N_(2)O and O_(2) under use of muscle relaxants. The results were as follows:
1. The pH values of the experimental groups (A and B) were higher than that of the control group C.
2. The difference in the pH values of the experimental groups was insignificant.
3. The values of PaCO_(2) in the experimental groups was significantly lower than that of the control group.
4. There was no significant difference in PaCO_(2) between the two experimental groups (A and B).
S. In the experimental groups (the value of PaCO_(2) in) group B was slightly lower than that of group A.
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