Titration of isoflurane using BIS index improves early recovery of elderly patients undergoing abdominal surgery
- VernacularTitle:脑电双频指数指导吸入异氟烷对腹部手术老年病人麻醉恢复的影响
- Author:
Mingzhang ZUO
;
Xiaoting LI
;
Zhong WANG
- Publication Type:Journal Article
- Keywords:
Isoflurane;
Electroencephalgraphy;
Aged;
Abdomen;
Anesthesia recovery period
- From:
Chinese Journal of Anesthesiology
1996;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
90 min, isoflurane concentration was increased or a bolus dose of fentanyl (25-50 ?g) was given i.v.. The BIS values before and during anesthesia and at extubation, emergence time, extubation time, the time between the end of operation and Aldrete anesthesia recovery score≥9, MMSE score and isoflurane consumption were recorded and compared between the two groups. Results The total amount of isoflurane consumed was 34% lower in BIS group than in control group. The average BIS values were higher and end-tidal isoflurane concentration was lower in BIS group than in control group. The time from the end of surgery to eye-opening, to extubation and Aldrete score≥9 were significantly shorter in BIS group than in control group. The MMSE score was significantly decreased at 1 h after operation as compared to the baseline score before induction of anesthesia while in control group MMSE score was still significantly decreased at 2 h after operation. Conclusion Titration of isoflurane using BIS monitoring can reduce the dose of isoflurane during operation and contribute to faster recovery from anesthesia in elderly patients undergoing intra-abdominal surgery.
