Skip Navigation

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow E-Letters: Submit a response to the article
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (27)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Bruhn, J.
Right arrow Articles by Shafer, S. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bruhn, J.
Right arrow Articles by Shafer, S. L.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

British Journal of Anaesthesia, 2001, Vol. 87, No. 3 505-507
© 2001 The Board of Management and Trustees of the British Journal of Anaesthesia

Case Reports

Onset of propofol-induced burst suppression may be correctly detected as deepening of anaesthesia by approximate entropy but not by bispectral index

J. Bruhn*,1, T. W. Bouillon1 and S. L. Shafer1,2

1Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA, USA. 2Palo Alto VA Health Care Center, Palo Alto, CA, USA*Corresponding author: Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Sigmund Freud Str. 25, D-53105 Bonn, Germany

The bispectral index (BIS) is a complex EEG variable that combines several disparate descriptors of the EEG into a single value. Approximate entropy is a novel EEG measure that quantifies the regularity of a data time series such as EEG. We report two patients in which the EEG effect of propofol was quantified very similarly by BIS and approximate entropy. However, at the beginning of burst suppression of the EEG, BIS did not indicate an increased anaesthetic drug effect, while approximate entropy did.

Br J Anaesth 2001; 87: 505–7


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Anesth. Analg.Home page
S. Kreuer, J. Bruhn, E. Walter, R. Larsen, C. C. Apfel, U. Grundmann, A. Biedler, and W. Wilhelm
Comparative Pharmacodynamic Modeling Using Bispectral and Narcotrend-Index With and Without a Pharmacodynamic Plateau During Sevoflurane Anesthesia
Anesth. Analg., April 1, 2008; 106(4): 1171 - 1181.
[Abstract] [Full Text] [PDF]

Home page
 Br J AnaesthHome page
R. R. Kennedy, C. Minto, and A. Seethepalli
Effect-site half-time for burst suppression is longer than for hypnosis during anaesthesia with sevoflurane
Br. J. Anaesth., January 1, 2008; 100(1): 72 - 77.
[Abstract] [Full Text] [PDF]

Home page
 Anesth. Analg.Home page
P. F. White, J. Tang, G. F. Romero, R. H. Wender, R. Naruse, A. Sloninsky, and R. Kariger
A Comparison of State and Response Entropy Versus Bispectral Index Values During the Perioperative Period
Anesth. Analg., January 1, 2006; 102(1): 160 - 167.
[Abstract] [Full Text] [PDF]

Home page
 Anesth. Analg.Home page
A. A. Dahaba
Different Conditions That Could Result in the Bispectral Index Indicating an Incorrect Hypnotic State
Anesth. Analg., September 1, 2005; 101(3): 765 - 773.
[Abstract] [Full Text] [PDF]

Home page
 Br J AnaesthHome page
S. Kreuer, J. Bruhn, R. Larsen, P. Bialas, and W. Wilhelm
Comparability of NarcotrendTM index and bispectral index during propofol anaesthesia
Br. J. Anaesth., August 1, 2004; 93(2): 235 - 240.
[Abstract] [Full Text] [PDF]

Home page
 Br J AnaesthHome page
A.-M. Huotari, M. Koskinen, K. Suominen, S. Alahuhta, R. Remes, K. M. Hartikainen, and V. Jantti
Evoked EEG patterns during burst suppression with propofol
Br. J. Anaesth., January 1, 2004; 92(1): 18 - 24.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.