RESUMO
Objective:To study the application value of electroencephalograph bispectral index (EEG-BIS) monitor in precision anesthesia and its effect on postoperative awakening time.Methods:A total of 100 patients who prepared to undergo thyroid surgery were randomly divided into observation group (n=50) and control group (n=50) .Under the same anesthesia way of the two groups, observation group adopted the results from EEG-BIS monitor to adjust the depth of anesthesia for patients, and control group adopted routine monitoring included weight, blood pressure and heart rate to adjust the depth of anesthesia.The amount of anesthetic and the awakening time of the patients in the two groups were observed and recorded, and the incidence of postoperative adverse events between the two groups were further compared.Results:The amount of propofol of observation group was significantly larger than that of control group (t=2.72, P<0.05) .And the awakening time, extubation time and the time of leaving PACU of observation group were significantly less than those of control group (t=4.45, t=4.83, t=5.92, P<0.05) .The differences of blood pressure at 20 min, 30 min and 60 min after patients underwent thyroid surgery between the two groups were significant (t=2.87, t=3.90, t=2.76, P<0.05) .Conclusion:BIS monitor can guide the adjustment for the depth of anesthesia during operation, and reduce the amount of general anesthetics of patients and shorten the awakening time in PACU, which is worthy in clinical application.