Correlation of bispectral index (BIS) monitoring and end-tidal sevoflurane concentration in a patient with lobar holoprosencephaly.

Abstract

OBJECTIVE:

The bispectral index (BIS) is a parameter derived by electroencephalography (EEG) which provides a direct measurement of the effects of sedatives and anesthetics on the brain and offers guidance on the adequacy of anesthesia. The literature lacks studies on BIS monitoring in pediatric patients with congenital brain disease undergoing general anesthesia.

CLINICAL FEATURES:

A 13-year-old child weighing 32kg, suffering from lobar holoprosencephaly, underwent surgery in which the bispectral index (BIS) monitoring the depth of anesthesia showed an abnormal response. Detailed analysis of the trends of BIS values in the different observation times demonstrated sudden falls and repetitive values of BIS likely related to repetitive epileptiform electrical activity caused by sevoflurane.

CONCLUSION:

The BIS is a very useful monitoring tool for assessing the degree of depth of anesthesia and to analyze the electroencephalographic variations of anesthetics. Particular attention should be given to patients with congenital disorders of the central nervous system in which the BIS may give abnormal responses that do not reflect an accurate assessment of the depth of anesthesia.

• Authors: Dario Galante, Donatella Fortarezza, Maria Caggiano, Giovanni de Francisci, Dino Pedrotti, Marco Caruselli
• Journal: Brazilian journal of anesthesiology (Elsevier) (Braz J Anesthesiol) 2015 Sep-Oct Vol. 65 Issue 5 Pg. 379-83 ISSN: 2352-2291 [Electronic] Brazil
• PMID: 26323737 (Publication Type: Case Reports, Journal Article)
• Copyright: Copyright © 2014 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda. All rights reserved.

Chemical References

• Anesthetics, Inhalation
• Methyl Ethers
• Sevoflurane

Topics

• Adolescent
• Anesthetics, Inhalation (pharmacokinetics)
• Electroencephalography
• Holoprosencephaly (physiopathology)
• Humans
• Methyl Ethers (pharmacokinetics)
• Monitoring, Physiologic
• Sevoflurane