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[Evaluation of the sedation level with propofol with electroencephalographic Entropy in comparison with bispectral index monitor].
Masui. 2006 Oct; 55(10):1278-81.M

Abstract

BACKGROUND

Entropy, a newly available electroencephalographic monitor, demonstrates two parameters, response entropy (RE) and state entropy (SE). The aim of this study is to compare RE and SE with bispectral index (BIS) during anesthetic induction with propofol.

METHODS

Fifteen patients received target controlled infusion of propofol starting at 3 microg x ml(-1). We measured RE, SE and BIS and recorded effect-site concentrations of propofol at three sedation levels: VR1; conscious state before infusion of propofol, VR2; no response to verbal command, and VR3; no response to verbal command and shaking. Spearman rank correlations and prediction probability for sedation level were analyzed.

RESULTS

Effect-site concentrations of propofol at VR1, VR2, and VR3 were 0, 1.8 +/- 0.7, and 2.4 +/- 0.7, respectively. All three parameters showed significant correlations with sedation levels. Prediction probability values of SE, RE, and BIS were 0.905, 0.894, and 0.890, respectively.

CONCLUSIONS

Response entropy and SE can provide similar information as BIS about the sedation level with propofol.

Authors+Show Affiliations

Department of Anesthesiology and Critical Care, Division of Clinical Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima 734-8551.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
English Abstract
Journal Article

Language

jpn

PubMed ID

17051996

Citation

Fukuda, Hideki, et al. "[Evaluation of the Sedation Level With Propofol With Electroencephalographic Entropy in Comparison With Bispectral Index Monitor]." Masui. the Japanese Journal of Anesthesiology, vol. 55, no. 10, 2006, pp. 1278-81.
Fukuda H, Kurita S, Kawamoto M, et al. [Evaluation of the sedation level with propofol with electroencephalographic Entropy in comparison with bispectral index monitor]. Masui. 2006;55(10):1278-81.
Fukuda, H., Kurita, S., Kawamoto, M., & Yuge, O. (2006). [Evaluation of the sedation level with propofol with electroencephalographic Entropy in comparison with bispectral index monitor]. Masui. the Japanese Journal of Anesthesiology, 55(10), 1278-81.
Fukuda H, et al. [Evaluation of the Sedation Level With Propofol With Electroencephalographic Entropy in Comparison With Bispectral Index Monitor]. Masui. 2006;55(10):1278-81. PubMed PMID: 17051996.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Evaluation of the sedation level with propofol with electroencephalographic Entropy in comparison with bispectral index monitor]. AU - Fukuda,Hideki, AU - Kurita,Shigeaki, AU - Kawamoto,Masashi, AU - Yuge,Osafumi, PY - 2006/10/21/pubmed PY - 2007/1/11/medline PY - 2006/10/21/entrez SP - 1278 EP - 81 JF - Masui. The Japanese journal of anesthesiology JO - Masui VL - 55 IS - 10 N2 - BACKGROUND: Entropy, a newly available electroencephalographic monitor, demonstrates two parameters, response entropy (RE) and state entropy (SE). The aim of this study is to compare RE and SE with bispectral index (BIS) during anesthetic induction with propofol. METHODS: Fifteen patients received target controlled infusion of propofol starting at 3 microg x ml(-1). We measured RE, SE and BIS and recorded effect-site concentrations of propofol at three sedation levels: VR1; conscious state before infusion of propofol, VR2; no response to verbal command, and VR3; no response to verbal command and shaking. Spearman rank correlations and prediction probability for sedation level were analyzed. RESULTS: Effect-site concentrations of propofol at VR1, VR2, and VR3 were 0, 1.8 +/- 0.7, and 2.4 +/- 0.7, respectively. All three parameters showed significant correlations with sedation levels. Prediction probability values of SE, RE, and BIS were 0.905, 0.894, and 0.890, respectively. CONCLUSIONS: Response entropy and SE can provide similar information as BIS about the sedation level with propofol. SN - 0021-4892 UR - https://www.unboundmedicine.com/medline/citation/17051996/[Evaluation_of_the_sedation_level_with_propofol_with_electroencephalographic_Entropy_in_comparison_with_bispectral_index_monitor]_ DB - PRIME DP - Unbound Medicine ER -