Korean J Anesthesiol.  1992 Dec;25(6):1158-1162. 10.4097/kjae.1992.25.6.1158.

Arterial Oxygen Tension Measurements during Nitrous Oxide - Oxygen Anesthesia

• Jeong SH
• Park JW
• Park JY

• KMID: 1934107
• DOI: http://doi.org/10.4097/kjae.1992.25.6.1158

Abstract

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 15 ml/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.

Keyword

Arterial oxygen tension; High concentration N2O; Fentanyl

MeSH Terms

Anesthesia*
Anoxia
Balanced Anesthesia
Fentanyl
Humans
Nitrous Oxide*
Oxygen*
Tidal Volume
Ventilation
Fentanyl
Nitrous Oxide
Oxygen