BIS and Postoperative Recall for Sevoflurane and Enflurane during Cesarean Section.
10.4097/kjae.2004.46.4.381
- Author:
Jin Yong CHUNG
1
;
Eun Young JEON
;
Bong Il KIM
;
Chan Hong PARK
;
Woon Seok ROH
;
Soung Kyung CHO
Author Information
1. Department of Anesthesiology and Pain Medicine, School of Medicine, Catholic University of Daegu, Daegu, Korea.
- Publication Type:Original Article
- Keywords:
bispectral index;
cesarean section;
enflurane;
recall;
sevoflurane
- MeSH:
Anesthesia;
Anesthesia, General;
Anesthetics;
Cesarean Section*;
Enflurane*;
Female;
Fetus;
Humans;
Pregnancy;
Succinylcholine;
Thiopental
- From:Korean Journal of Anesthesiology
2004;46(4):381-385
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: Generally, 0.6-0.7 MAC of anesthetics are used to minimize the effect of anesthetics on the fetus during cesarean section. Therefore the possibility of awareness is a considerable problem in cesarean section. This study was designed to compare enflurane with sevoflurane in terms of intraoperative bispectral index (BIS) and posoperative recall during a cesarean section. METHODS: Eighty patients of ASA physical status 1 who underwent an elective cesarean section under general anesthesia were investigated in this study. Anesthesia was induced with 4 mg/kg thiopental and 1 mg/kg succinylcholine, and then maintained with O2 (2 L), N2O (2 L) and enflurane 1.0 vol% (n = 40) or sevoflurane 1.2 vol% (n = 40). We monitored BIS throughout the operation and recorded recall by asking the patients 1 day after the operation. RESULTS: BIS values of the sevoflurane group were significantly lower than those of the enflurane group after delivery (P < 0.05). However, no patient could recall intraoperative events postoperatively. CONCLUSIONS: Even though no patient could recall intraoperative events, high BIS values, which can produce awareness, were detected by 17.5% of patients after delivery in enflurane group. Therefore, sevoflurane is probably a better choice than enflurane in terms of preventing postoperative recall during cesarean section under general anesthesia.
