Objective To explore the depth of anesthesia index for the clinical effects of anesthesia monitoring depth of anesthesia during surgery. Methods Collected in our hospital from July 2011 to November 2012, 120 cases of surgical anesthesia surgery patients were randomly divided into a control group and the observation group 60 cases each observation group anesthetic dosage adjusted according to the CSI, the CSI maintain (50±5), control group to determine the depth of anesthesia by virtue of the experience of the anesthesiologist to adjust the anesthetic dosage. Results T4 control group SBP and DBP were lower than at T3;T4 to T6 observation group HR was slower than the control group (P<0.05);T3 and T4 observation group CSI are less than the control group;T5 and T6 The observation group CSI greater than the control group (P<0.05), the two groups of patients, CSI decreased with the OAA/S score decreased (P<0.05), MAP declined, but the comparison between the two adjacent OAA/S score only rated decreased from 3 to 2 timesharing was statistically significant (P<0.05);HR OAA/S scores at all levels, the difference was not significant. Conclusion The depth of anesthesia index (CSI) is an important indicator for monitoring the depth of anesthesia.%目的：探讨麻醉深度指数用于全麻手术期间麻醉深度监测的临床效果。方法收集我院2011年7月至2012年11月手术的全麻手术的患者120例，随机均分为对照组和观察组患者各60例，观察组根据CSI调整麻醉药用量，使CSI维持在（50±5），对照组凭借麻醉医师经验判断麻醉深度调整麻醉药用量。结果 T4时对照组SBP和DBP均低于T3时；T4~T6时观察组HR均慢于对照组(P<0.05)；T3和T4时观察组CSI均小于对照组；T5和T6时观察组CSI大于对照组(P<0.05)，两组患者CSI随OAA/S评分下降而下降(P<0.05)，MAP虽然有所下降，但两相邻OAA/S评分之间比较仅评分由3分至2分时下降有统计学意义(P<0.05)；HR在各级OAA/S评分时比较差异无统计学意义。结论麻醉深度指数(CSI)是监测麻醉深度的重要指标。
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