Esketamine vs. Ketorolac for Prevention of Postoperative Pain and Cognitive Dysfunction After Total Knee Arthroplasty
Postoperative Pain, Postoperative Cognitive Dysfunction, Total Knee Arthroplasty
About this trial
This is an interventional prevention trial for Postoperative Pain focused on measuring esketamine, ketorolac
Eligibility Criteria
Inclusion Criteria:
- Subject is scheduled to undergo total knee arthroplasty under a short general anesthesia of less than 2 hours
- Subject's American Society of Anesthesiologists physical status is I-II.
- The subject's parent/legally authorized guardian has given written informed consent to participate.
Exclusion Criteria:
- Subject has a diagnosis of bronchial asthma, coronary heart disease, severe hypertension, renal failure or liver failure.
- Subject has a diagnosis of Insulin dependent diabetes.
- Subject is allergy and contraindication to esketamine or ketorolac.
- Subject has a history of chronic pain, a history of alcohol or opioid abuse, pre- existing therapy with opioids.
- Subject has any contraindication for the use of patient-controlled analgesia (PCA).
- Subject is pregnant or breast-feeding.
- Subject is obese (body mass index >30kg/m^2).
- Subject is incapacity to comprehend pain assessment and cognitive assessment.
Sites / Locations
- Tianjin Medical University General HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Placebo Comparator
Active Comparator
Active Comparator
Active Comparator
Normal saline in patients
Esketamine in patients
Ketorolac in patients
Esketamine and Ketorolac in patients
After the induction of anesthesia, normal saline is intravenously injected in a volume of 2ml, and then a continuous infusion of 20 ml/h normal saline until starting skin suture.
After the induction of anesthesia, esketamine is intravenously injected at 0.4mg/kg, and then a continuous infusion of 0.4mg/kg/h esketamine until starting skin suture.
After the induction of anesthesia, ketorolac is intravenously injected at 0.4mg/kg, and then a continuous infusion of 0.4mg/kg/h ketorolac until starting skin suture.
After the induction of anesthesia, 0.2mg/kg esketamine and 0.2mg/kg ketorolac are intravenously injected, and then a continuous infusion of 0.2mg/kg/h esketamine and 0.2mg/kg/h ketorolac until starting skin suture.