The clinical evaluation of the bispectralindex of electroencephalogram in predicting movement during skin incision in patients under sevoflurane anesthesia
- VernacularTitle:脑电图双频谱指数预测七氟醚麻醉病人切皮体动反应的临床评价
- Author:
Delin ZHANG
;
Qulian GUO
;
Xianlai CHEN
- Publication Type:Journal Article
- Keywords:
Prediction probability;
Electroencephalogram;
Sevoflurane;
Bispectral index;
Depth of anesthesia
- From:
Chinese Journal of Anesthesiology
1994;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To evaluate the efficacy of the bispectral index (BI) in predicting patient movement on skin incision under sevoflurane anesthesia with the PK statistic. Method: Twenty-nine adult patients. scheduled for elective upper abdominal surgery, were selected. Anesthesia was induced with propofol and 4%-5% sevoflurane in oxygen and maintained with one of four randomized sevoflurane concentrations (0.6MAC, 1.0MAC. 1.5MAC and 2.0MAC) for fifteen minutes, then skin incision was performed by the surgeon at the planned site of the surgery, and each patient was observed carefully about 2 minutes to detect purposeful movement. The data of BI, 95% SEF, MAP, SABP and HR in one minute before skin incision were applied to statistically analysis. Result: The P_K was significantly greater than 0.5 for the sevoflurane level and the BI. The PK of 95% SEF. SABP and MAP were less than that of the level of sevoflu or Bl. but was significantly greater than 0.5 The P_K of HR was close to 0.5. Conclusion: These indicators of B, BP and 95% SEF may predict patient movement to skin incision under sevoflurane anesthesia. of which the BI is the most sensi tive.
