Intraoperative management and treatment of special circumstances
All patients used BIS monitoring to evaluate anesthesia depth in this experiment. The BIS value control target is between 40 and 60. The hemodynamic fluctuation control target of patients is within 20% of the basic level. During anesthesia, if the patient’s BIS value and hemodynamic fluctuation range are not within the control target range, the anesthesiologist will analyze the related possible reasons and adjust the anesthesia depth and use vasoactive drugs, while making records.