The inflammatory process is the main mechanism in the occurrence of acute postoperative pain. It is also the main risk for the development of acute pain into persistent pain. Inflammation occurs in the process of peripheral sensitization and central sensitization with various inflammatory mediators. Postoperatively, there will be proliferation and activation of microglia and astrocytes which will then activate inflammatory receptors and signaling cascades of neurotransmitters, cytokines, and chemokines. There has been a lot of clinical research evidence that multimodal analgesia can adequately treat acute pain and can prevent the development of acute postoperative pain into persistent pain and chronic postoperative pain, but the molecular mechanisms are not fully understood.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
62
Multimodal analgesia includes the combination of: 1. morphine given by PCA (patient-controlled analgesia) at 1 mg/dose 2. bupivacaine 0.25% and dexmedetomidine 0.5 mcg/mL (total volume of 10 mL) by epidural-catheter bolus given preoperatively 3. bupicavaine 0.125% and dexmedetomidine 0.5 mcg/mL at a 5 mL/hour rate per epidural-catheter given intraoperatively 4. bupivacaine 0.1% and dexmedetomidine 0.5 mcg/mL given by programmed intermittent epidural bolus (PIEB), set to be delivered every one-hour 5. etericoxib 90 mg per oral give two-hours before surgery and then continued until three days post-surgery 6. paracetamol 1 g (intravenously) given on the day of the surgery, continued at 10 mg/kg dose every 8 hours until three days post-surgery
Standard analgesia includes fentanyl 2 mcg/kg (bolus) and morphine given by PCA (patient-controlled analgesia) at 1 mg/dose
Sanglah General Hospital
Denpasar, Bali, Indonesia
Preoperative MCP-1
serum level of MCP-1
Time frame: 1-hour before surgery
Preoperative BDNF
serum level of BDNF
Time frame: 1-hour before surgery
Preoperative MiRNA-124
serum level of MiRNA-124
Time frame: 1-hour before surgery
Postoperative MCP-1
serum level of MCP-1
Time frame: 48-hours after surgery
Postoperative BDNF
serum level of BDNF
Time frame: 48-hours after surgery
Postoperative MiRNA-124
serum level of MiRNA-124
Time frame: 48-hours after surgery
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