脑电双频指数监测值与术中知晓发生率关系的探讨

目的：分析脑电双频指数（BIS）监测值和术中发生知晓的关系。方法选取120例行全麻手术的患者，分为3组，试验组术中BIS值调控在40～60，对照1组在60～80，对照2组不行专门调控，比较3组BIS监测值，并对比术中知晓情况及术后苏醒时间。结果试验组术中BIS平均值为（51.7±6.3），对照组1、2组分别（70.4±3.7）、（65.8±3.4），组间比较有统计学意义（P＜0.05）。试验组无术中知晓患者，对照1组和对照2组均出现1例（2.5%）怀疑性知晓患者（P＜0.05）；3组术后睁眼、点头及对答持续时间差异无统计学意义。结论 BIS监测值和术中发生知晓有着一定相关性，BIS值在40～60时麻醉安全性高，临床可进行参照。

Objective To analyze the relationship between the bispectral index（BIS） monitoring numerical and incidence of intraoperative awareness. Methods Totally 120 cases of patients who were for general anesthesia surgery were chosen, the experimental group controlled the BIS monitoring numerical in the 40-60,the control group 1 was 60-80,and the control group 2 had no special regulation,then the BIS monitoring numerical of the three groups were compared,and compared the intraoperative awareness and postoperative waking time. Results Intraoperative BIS experimental group average was （51.7＆#177;6.3）, control group 1 and group 2, respectively （70.4＆#177;3.7）, （65.8＆#177;3.4）, was statistically significant between the two groups （P〈0.05）. The experimental group patients without intraoperative awareness, control group 1 and group 2 groups were 1 case （2.5%） patients with suspected sexual awareness （P〈0.05）;3 groups postoperative eyes, nodded and no statistical difference in the duration of verbal exchanges significance. Conclusion There has relationship between the BIS monitoring numerical and incidence of intraoperative awareness,the anesthesia has high safety when the BIS monitoring numerical is in 40-60,the clinical can be reference.