两种通气法中听觉诱发电位的运用与比较

目的:听觉诱发电位指数(AAI)是监测麻醉深度的一项新指标,ProSeal喉罩是一种新型通气喉罩。本实验探讨腹腔镜胆囊切除术(LC)的两种麻醉通气法中听觉诱发电位与传统监测指标的优异。方法:100名择期腹腔镜胆囊切除术患者随机分为ProSeat喉罩(PLMA)组与气管插管(ETT)组。在全麻诱导插管期比较两组中听觉诱发电位指数(AAJ),血糖(BG),平均动脉压(MAP),心率(HR)的变化。结果:两组中AAI在麻醉诱导期无差异,但在插管期PLMA组AAI比ETT组更平稳。两组中BG,MAP,HR也有类似变化。结论:ProSeal喉罩能减轻全麻插管的应激反应,AAI比传统监测指标能更好地反应插管应激。

Comparison of AAI between Two Different Airway Devices for Laparoscopic Cholecystectomy

Objective:A-Line ARX IndexTM(AAI) is a new parameter to monitor the depth of anesthesia and ProSeal LMA (laryngeal mask airway)is a new laryngeal mask airway for ventilation.This study was designed to investigate the stress response with different parameters during anesthesia induction and intubation to compare the outcomes produced by ProSeal laryngeal mask airway(PLMA) and endotracheal tube(ETT) respectively used for laparoscopic cholecystectomy.Methods:One hundred selected patients for laparoscopic eholecystectomy(LC) were randomized into two groups(PLMA group and ETT group),an identical general anesthesia technique was used in all patients.The primary outcome measure was AAI.Secondary outcome measures included blood glucose(BG),mean arterial pressure(MAP),heart rate(HR).Results:There was no statistical difference in AAI between the PLMA group and the ETT group during anesthesia induction,but AAI maintained more stable in the PLMA group than the ETT group during airway insertion;there was a similarity among BG,MAP and HR between these two groups.Conclusions:These results suggest that the usage of PLMA can attenuate the stress response in general anesthesia and AAI is as good as traditional parameters to reflect the stress response.