Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-06-05T22:28:44.826Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of bispectral index monitoring on sevoflurane consumption

Published online by Cambridge University Press:  30 June 2005

H. Başar ,
S. Ozcan ,
U. Buyukkocak ,
S. Akpinar  and
A. Apan
H. Başar
Affiliation:
Kirikkale University, Department of Anaesthesiology and Reanimation, Kirikkale, Turkey
S. Ozcan
Affiliation:
Kirikkale University, Department of Anaesthesiology and Reanimation, Kirikkale, Turkey
U. Buyukkocak
Affiliation:
Kirikkale University, Department of Anaesthesiology and Reanimation, Kirikkale, Turkey
S. Akpinar
Affiliation:
Kirikkale University, Department of Anaesthesiology and Reanimation, Kirikkale, Turkey
A. Apan
Affiliation:
Kirikkale University, Department of Anaesthesiology and Reanimation, Kirikkale, Turkey
Get access

Extract

Summary

Background and objective: The bispectral index, a parameter derived from the electroencephalograph, has been shown to correlate with the loss of consciousness and sedation. This study was designed to assess the effects of bispectral index monitoring on sevoflurane and its recovery profiles.

Methods: Sixty ASA I and II patients undergoing open abdominal surgery were randomized into two groups: one monitored using the bispectral index (Group BIS) and the other without its use (controls). After a standardized induction, anaesthesia was maintained with sevoflurane in both groups. In Group BIS, sevoflurane was titrated to maintain the bispectral index in the range 40–60. In the control group, the administered sevoflurane concentration was adjusted according to the signs of anaesthesia. The end-tidal sevoflurane concentration, bispectral index and routine haemodynamic variables were noted every 5 min during surgery. The consumption of sevoflurane was computed. At the conclusion of surgery operations, the time to ‘open eyes on verbal command’, ‘motor response to verbal command’ and Aldrete's score were recorded by a blinded anaesthesiologist.

Results: The difference in the consumption of sevoflurane was not significant between the groups. Bispectral index monitoring was associated with a reduction of 4.73% in sevoflurane usage and 2.19 mL h−1 was saved.

Conclusions: Bispectral index monitoring during anaesthesia provides only a small advantage related to the need to monitor the depth of anaesthesia.

Keywords

ANAESTHESIA, GENERALANAESTHETICS, INHALATION, sevofluraneELECTROENCEPHALOGRAPHY, MONITORING, PHYSIOLOGICAL, bispectral index
Type
Original Article
Information
European Journal of Anaesthesiology , Volume 20 , Issue 5 , May 2003 , pp. 396 - 400
Copyright
2003 European Society of Anaesthesiology

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Kearse LA, Manberg P, Chamoun N, deBros F, Zaslovsky A. Bispectral analysis of electroencephalogram correlates with patient movement to skin incision during propofol/nitrous oxide anesthesia. Anesthesiology 1994; 81: 1365–1370.Google Scholar
Song D, Joshi GP, White PF. Titration of volatile anesthetics using bispectral index facilitates recovery after ambulatory anesthesia. Anesthesiology 1997; 87: 842–848.Google Scholar
Ylı-Hankala A, Vakkuri A, Annila P, Kortilla K. EEG bispectral index monitoring sevoflurane or propofol anaesthesia: analysis of direct costs and immediate recovery. Acta Anaesthesiol Scand 1999; 43: 545–549.Google Scholar
Eger EI, White PF, Bogetz MS. Clinical and economic factors important to anaesthetic choice for day-case surgery. Pharmacoeconomics 2000; 17: 245–262.Google Scholar
Aldrete JA, Kroulik D. A postanesthetic recovery score. Anesth Analg 1970; 49: 924–934.Google Scholar
Mapleson WW. Effect of age on MAC in humans: a meta-analysis. Br J Anaesth 1966; 76; 176–185.Google Scholar
Laster MJ, Fang Z, Eger EI II. Specific gravities of desflurane, enflurane, and sevoflurane. Anesth Analg 1994; 78: 1152–1153.Google Scholar
Glass PS, Bloom M, Kearse L, Rosow C, Sebel P, Manberg P. Bispectral analysis measures sedation and memory effects of propofol, midazolam, isoflurane and alfentanil in healthy volunteers. Anesthesiology 1997; 86: 836–847.Google Scholar
Kissin I. Depth of anesthesia and bispectral index monitoring. Anesth Analg 2000; 90: 1114–1117.Google Scholar
Sebel PS, Lang E, Rampil IJ, et al. A multicenter study of bispectral electroencephalogram analysis for monitoring anesthetic effect. Anesth Analg 1997; 84: 891–899.Google Scholar
Katoh T, Suziki A, Ikeda K. Electroencephalographic derivatives as a tool for predicting the depth of sedation and anesthesia induced by sevoflurane. Anesthesiology 1998; 88: 642–650.Google Scholar
Yuen PM, Mak TW, Yim SF, et al. Metabolic and inflammatory responses after laparoscopic and abdominal hysterectomy. Am J Obstet Gynecol 1998; 179: 1–5.Google Scholar
Guignard B, Coste C, Menigaux C, Chouvin M. Reduced isoflurane consumption with bispectral index monitoring. Acta Anaesthesiol Scand 2001; 45: 308–314.Google Scholar
Pavlin DJ, Hong Y, Freund PR, Koerschgen ME, Bower JO, Bowdle TA. The effect of bispectral index monitoring on end-tidal gas concentration and recovery duration after outpatient anesthesia. Anesth Analg 2001; 93: 613–619.Google Scholar
Watcha MF, White PF. Economics of anesthetic practice. Anesthesiology 1997; 86: 1170–1196.Google Scholar
Johnstone RE, Martinec CC. Cost of anesthesia. Anesth Analg 1993; 76: 840–848.Google Scholar
Gan TJ, Glass PS, Windsor A, Payne F, Rosow C, Sebel P. Bispectral index monitoring allows faster emergence and improved recovery from propofol, alfentanil, and nitrous oxide anesthesia. Anesthesiology 1997; 87: 808–815.Google Scholar