The Effect of IoC on Analgesia for Elderly Patients With Postoperative Effectiveness
Colorectal Cancer
About this trial
This is an interventional supportive care trial for Colorectal Cancer focused on measuring IoC, monitor, elderly, postoperative effectiveness
Eligibility Criteria
Inclusion Criteria:
- Patients aged over 60 years old that underwent Colorectal surgery in the First Affiliated Hospital of Xi'an Jiaotong University.
Exclusion Criteria:
- Having severe comorbidity history,for example,severe cardiac dysfunction
- Having central nervous system disease, severe endocrine, and history of mental disorders
- Alcoholic and long-term use of sedatives and opioids history
- Drug allergy history.
Sites / Locations
- FirstXianJiaotongURecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
study group
control group
Using Angel-6000D Multiparameter Anesthesia Monitor to maintain the Hemodynamic stability during surgery. Keep IoC1 40 to 60 while IoC2 30-50.Target concentration of propofol was decreased by 0.5 μg/ml per adjustment when IoC1<40, with a maintenance value between 40 and 60. The target concentration of remifentanil was increased by 1 ng/ml per adjustment when IoC2>50 but was decreased by 1 ng/ml per adjustment when IoC2<30, with the maintenance value between 30 and 50.
Using BIS VISTA Monitor to maintain the Hemodynamic stability during surgery. Keep BIS 40 to 60.The doses of propofol and remifentanil were adjusted by the anesthetists according to BIS. Target concentration of propofol was decreased by 0.5 μg/ml per adjustment when BIS<40, with a maintenance value between 40 and 60. The target concentration of remifentanil was increased by 1 ng/ml per adjustment when BIS>60 but was decreased by 1 ng/ml per adjustment when BIS<40, with the maintenance value between 40 and 60.