The morbidity of colorectal cancer and the surgery number among elderly is growing. The investigators need to provide more advanced and specific monitoring technology for these patients. Index of consciousness (IoC) monitor is now widely used among endoscopy, cholecystectomy and other common clinical applications. The investigators goal is to verify whether using IoC monitor could help to improve the postoperative recovery after colorectal surgery.
Participants will be randomly assigned, in a 1:1 ratio, to receive IoC monitoring or BIS monitoring during the operation as the criteria for adjustment of analgesics use. The randomization sequence will be computer-generated, and randomization will be performed in blocks and will be stratified according to participating center. The number of dialysis and patient's recovery after the transplantation will be recorded. The participation of each patient is scheduled till they discharge from hospital.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
100
The Angel-6000D Multiparameter Anesthesia Monitor, Shenzhen Weihaokang Medical Technology Co., Ltd, Guangdong, China
BIS VISTA Monitor, Covidien, Changchun city shi jia trade co., Ltd, Changchun, China
FirstXianJiaotongU
Xi'an, Shaanxi, China
RECRUITINGDuration time in PACU
patients able to leave PACU with the proper Aldrete score
Time frame: 24 hours
Use of remifentanil
Time frame: during surgery
Use of propofol
Time frame: during surgery
length of hospital stay (LOS)
Time frame: Participants will be followed for the duration of hospital stay, an expected average of 2 weeks
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