Recovery from propofol anesthesia: a quantitative electroencephalographic analysis.

C. L. Chen, C. C. Liu, Ta-Liang Chen, Gong-Jhe Wu, C. H. Huang, S. Y. Lin, C. C. Chao

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Four numerical descriptors (median frequency, spectral edge frequency-95%, total power, and delta-ratio) derived from the computer-processed electroencephalogram (Neurometrics Lifescan) were analyzed for their ability to predict imminent arousal from total intravenous anesthesia with propofol. Fifteen patients undergoing minor surgical procedures without intubation were enrolled in the study. Arousal was defined as eye opening in response to verbal stimuli. During emergence from propofol, there were no significant changes among the descriptors except the delta-ratio. Significant change of delta-ratio occurred 210 seconds before patients' arousal and thereafter. An increase of delta-ratio value indicates that patients shifted from anesthetic to arousal state. It is concluded that the degree of delta-ratio change may be used for predicting patients' arousal from propofol anesthesia.

Original languageEnglish
Pages (from-to)77-82
Number of pages6
JournalActa Anaesthesiologica Sinica
Volume32
Issue number2
Publication statusPublished - Jun 1994
Externally publishedYes

Fingerprint

Propofol
Arousal
Anesthesia
Minor Surgical Procedures
Intravenous Anesthesia
Aptitude
Intubation
Anesthetics
Electroencephalography

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Chen, C. L., Liu, C. C., Chen, T-L., Wu, G-J., Huang, C. H., Lin, S. Y., & Chao, C. C. (1994). Recovery from propofol anesthesia: a quantitative electroencephalographic analysis. Acta Anaesthesiologica Sinica, 32(2), 77-82.

Recovery from propofol anesthesia : a quantitative electroencephalographic analysis. / Chen, C. L.; Liu, C. C.; Chen, Ta-Liang; Wu, Gong-Jhe; Huang, C. H.; Lin, S. Y.; Chao, C. C.

In: Acta Anaesthesiologica Sinica, Vol. 32, No. 2, 06.1994, p. 77-82.

Research output: Contribution to journalArticle

Chen, C. L. ; Liu, C. C. ; Chen, Ta-Liang ; Wu, Gong-Jhe ; Huang, C. H. ; Lin, S. Y. ; Chao, C. C. / Recovery from propofol anesthesia : a quantitative electroencephalographic analysis. In: Acta Anaesthesiologica Sinica. 1994 ; Vol. 32, No. 2. pp. 77-82.
@article{3020eb91ab9a4154af8eac077a8db7f5,
title = "Recovery from propofol anesthesia: a quantitative electroencephalographic analysis.",
abstract = "Four numerical descriptors (median frequency, spectral edge frequency-95{\%}, total power, and delta-ratio) derived from the computer-processed electroencephalogram (Neurometrics Lifescan) were analyzed for their ability to predict imminent arousal from total intravenous anesthesia with propofol. Fifteen patients undergoing minor surgical procedures without intubation were enrolled in the study. Arousal was defined as eye opening in response to verbal stimuli. During emergence from propofol, there were no significant changes among the descriptors except the delta-ratio. Significant change of delta-ratio occurred 210 seconds before patients' arousal and thereafter. An increase of delta-ratio value indicates that patients shifted from anesthetic to arousal state. It is concluded that the degree of delta-ratio change may be used for predicting patients' arousal from propofol anesthesia.",
author = "Chen, {C. L.} and Liu, {C. C.} and Ta-Liang Chen and Gong-Jhe Wu and Huang, {C. H.} and Lin, {S. Y.} and Chao, {C. C.}",
year = "1994",
month = "6",
language = "English",
volume = "32",
pages = "77--82",
journal = "Asian Journal of Anesthesiology",
issn = "2468-824X",
publisher = "Elsevier Taiwan LLC",
number = "2",

}

TY - JOUR

T1 - Recovery from propofol anesthesia

T2 - a quantitative electroencephalographic analysis.

AU - Chen, C. L.

AU - Liu, C. C.

AU - Chen, Ta-Liang

AU - Wu, Gong-Jhe

AU - Huang, C. H.

AU - Lin, S. Y.

AU - Chao, C. C.

PY - 1994/6

Y1 - 1994/6

N2 - Four numerical descriptors (median frequency, spectral edge frequency-95%, total power, and delta-ratio) derived from the computer-processed electroencephalogram (Neurometrics Lifescan) were analyzed for their ability to predict imminent arousal from total intravenous anesthesia with propofol. Fifteen patients undergoing minor surgical procedures without intubation were enrolled in the study. Arousal was defined as eye opening in response to verbal stimuli. During emergence from propofol, there were no significant changes among the descriptors except the delta-ratio. Significant change of delta-ratio occurred 210 seconds before patients' arousal and thereafter. An increase of delta-ratio value indicates that patients shifted from anesthetic to arousal state. It is concluded that the degree of delta-ratio change may be used for predicting patients' arousal from propofol anesthesia.

AB - Four numerical descriptors (median frequency, spectral edge frequency-95%, total power, and delta-ratio) derived from the computer-processed electroencephalogram (Neurometrics Lifescan) were analyzed for their ability to predict imminent arousal from total intravenous anesthesia with propofol. Fifteen patients undergoing minor surgical procedures without intubation were enrolled in the study. Arousal was defined as eye opening in response to verbal stimuli. During emergence from propofol, there were no significant changes among the descriptors except the delta-ratio. Significant change of delta-ratio occurred 210 seconds before patients' arousal and thereafter. An increase of delta-ratio value indicates that patients shifted from anesthetic to arousal state. It is concluded that the degree of delta-ratio change may be used for predicting patients' arousal from propofol anesthesia.

UR - http://www.scopus.com/inward/record.url?scp=0028456623&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028456623&partnerID=8YFLogxK

M3 - Article

C2 - 8038978

AN - SCOPUS:0028456623

VL - 32

SP - 77

EP - 82

JO - Asian Journal of Anesthesiology

JF - Asian Journal of Anesthesiology

SN - 2468-824X

IS - 2

ER -