PMID: 9523807Apr 2, 1998Paper

Electroencephalographic derivatives as a tool for predicting the depth of sedation and anesthesia induced by sevoflurane

Anesthesiology
T KatohK Ikeda

Abstract

The electroencephalogram (EEG) has been evaluated as a tool for measuring depth of anesthesia, but the use of the EEG monitoring is still controversial. The current study was designed to evaluate the accuracy of three EEG parameters and anesthetic concentration for predicting depth of sedation and anesthesia during sevoflurane anesthesia One low and one high equilibrated concentration ranging from 0.2-1.8% were assigned randomly and administered consecutively to 69 patients. The bispectral index (BIS; version 3.2), 95% spectral edge frequency (SEF), and median power frequency (MPF) were obtained from a bipolar frontomastoid (Fp1-A1, Fp2-A2) montage using an EEG monitor. Sedation was assessed using the responsiveness portion of the observer's assessment of alertness-sedation scale. In the second phase of the study, the 47 patients who were scheduled to have skin incisions were observed for purposeful movement in response to skin incision at sevoflurane concentrations between 1.6% and 2.4%. The relation among BIS, 95% SEF, MPF, sevoflurane concentration, sedation score, and movement or no movement after skin incision, was determined. Prediction probability values for EEG parameters and sevoflurane concentration to predict depth o...Continue Reading

References

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Citations

Oct 3, 1999·Medical & Biological Engineering & Computing·X S Zhang, R J Roy
Nov 8, 2001·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·M NakayamaA Namiki
Mar 7, 2003·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Christian S DegouteChristian Dubreuil
May 7, 2004·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Isabelle Constant
May 7, 2004·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Rosendo A RodriguezWilliam M Splinter
Jan 23, 2008·Der Anaesthesist·G N SchmidtP Bischoff
Jul 6, 2010·Gastric Cancer : Official Journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association·Masaya UesatoHisahiro Matsubara
Mar 28, 2008·Journal of Clinical Monitoring and Computing·Sascha KreuerWolfram Wilhelm
Feb 13, 2013·Journal of Clinical Monitoring and Computing·Ayse MizrakVahap Saricicek
Apr 17, 2008·Medical & Biological Engineering & Computing·Hui-Hsun HuangShou-Zen Fan
Mar 11, 2004·The American Journal of Emergency Medicine·Michelle GillBaruch Krauss
Mar 27, 2003·Journal of Clinical Anesthesia·Shigeki YamaguchiToshimitsu Kitajima
Sep 2, 1999·Journal of Clinical Anesthesia·Y NakataS Morita
Jan 5, 2002·Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine·K ItamotoT Miyara
Aug 7, 2002·Critical Care Medicine·Hermann J TheilenMaximilian Ragaller
Jun 10, 2003·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Noreen CrainMurray M Pollack
Jan 5, 2002·Anesthesia and Analgesia·Diederik NieuwenhuijsAlbert Dahan
Jul 23, 2003·Anesthesia and Analgesia·M MessnerK Tschaikowsky
Aug 31, 2004·Anesthesia and Analgesia·Mairead HeaneyAnthony J Cunningham
Dec 24, 2004·Anesthesia and Analgesia·Yasuhiro MorimotoSatoshi Hagihira
Jun 25, 2005·Anesthesia and Analgesia·Manabu KakinohanaKazuhiro Sugahara

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