|
KMID : 0352120150300010038
|
|
Journal of Kyung Hee University
2015 Volume.30 No. 1 p.38 ~ p.42
|
|
|
Different Oxygen Concentration in Preoxygenation Induced Yawning during General Anethesia Induction
|
|
Kim Bo-Young
Yi Jae-Woo
Kang Jong-Man
|
|
|
Abstract
|
|
|
Purpose: Yawning is a common phenomenon. In daily life and during induction of general anesthesia yawning is easily observed. Its physiology is unknown. But to keep alert during our daily life is widely accepted as the purpose of yawning. Oxygen deficit as a trigger factor of yawning is questioned. The purpose of this study is to know the different oxygen concentration could occur the yawning during induction of general anesthesia.
Methods: 22 patients (age 20 to 65 years old), each of ASA physical status Ⅰ-Ⅱ, were randomly assigned into two group. Each group were given preoxygenation with 100% oxygen 6 liter or with 100% oxygen 2 liter (FiO2 1.0) and 4 liter of air (FiO2 0.473) for 3 minutes. After injection of propofol (2 mg/kg), occurrence of yawning was closed observed.
Results: After administration of propofol, 8 patients yawned in FiO2 1.0 preoxygenation group. And 5 patient yawned in FiO2 0.473 group. Incidence rate is 72.7% and 45.5% respectively. P-value is 0.387.
Conclusion: Different oxygen concentration in preoxygenation during induction of general anesthesia does not trigger yawning.
|
|
|
KEYWORD
|
|
|
Yawning, Oxygen, Concentration, Induction of anesthesia
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|