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Evaluation of Adding Dexmedetomidine to Ropivacaine in Pediatric Caudal Epidural Block: A Randomized, Double-blinded
Farnad Imani1, Reza Farahmand Rad1, Reza Salehi1
1Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran.
Insights
Adding dexmedetomidine to ropivacaine for caudal epidural blocks in children undergoing lower abdominal surgery significantly improved postoperative pain management. This enhanced analgesia lasted longer and reduced the need for additional pain medication without increasing adverse effects.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Pain Management
Background:
- Caudal block is a common pain management technique after lower abdominal surgery in children.
- Existing methods have limitations requiring optimization for better patient outcomes.
Purpose of the Study:
- To evaluate the efficacy and safety of adding dexmedetomidine to ropivacaine for caudal epidural blocks.
- To assess postoperative pain, analgesia duration, and adverse effects in pediatric patients.
Main Methods:
- A randomized, double-blinded clinical trial involving 46 children (3-6 years) undergoing lower abdominal surgery.
- Comparison of caudal blocks with ropivacaine alone (R group) versus ropivacaine plus dexmedetomidine (DR group).
- Assessment of pain scores, analgesia duration, analgesic consumption, hemodynamics, and side effects at 1, 2, and 6 hours post-surgery.
Main Results:
- No significant difference in pain scores at 1 and 2 hours between groups.
- Significantly lower pain scores at 6 hours and longer duration of analgesia in the DR group (P=0.001).
- Reduced analgesic consumption and lower diastolic blood pressure in the DR group; no significant differences in heart rate, systolic blood pressure, surgery duration, recovery time, or side effects.
Conclusions:
- Addition of dexmedetomidine to ropivacaine in caudal epidural blockade enhances postoperative analgesia in pediatric patients.
- This combination provides improved pain relief without significant adverse effects.
- Dexmedetomidine is a safe and effective adjuvant for caudal epidural anesthesia in children.
Background:
Caudal block is one of the methods of pain management performed following lower abdominal surgery, though having its own limitations.
Objectives:
In the present study, the effects and side effects of adding dexmedetomidine to ropivacaine in the caudal epidural block were investigated in children after lower abdominal surgery.
Methods:
In this randomized, double-blinded clinical trial, 46 children aged three to six years were divided into two groups to perform a caudal block following lower abdominal surgery under general anesthesia. The injectable solution contained ropivacaine in the R group (1 mL/kg ropivacaine 0.2%), as the control group, and dexmedetomidine (2 µg/kg) and ropivacaine 0.2% (1 mL/kg) in the DR group. The pain score (modified CHEOPS score), duration of analgesia, amount of analgesia consumed (i.v. paracetamol), hemodynamic changes, and possible adverse effects were assessed at one, two, and six hours in both groups.
Results:
The pain score at one and two hours showed no significant difference between the two study groups (P > 0.05). In the DR group, however, the pain score at the sixth hour was significantly lower, and the duration of analgesia was longer (P = 0.001). The amount of analgesic consumption was also lower in the DR group (P = 0.001). However, there was no significant difference in systolic blood pressure and heart rate (P < 0.05), in the case of diastolic blood pressure, a significant difference (P < 0.05) was seen (DR group lower than the R group). There was no statistically significant difference between the study groups in the duration of surgery, recovery time, and side effects (P < 0.05).
Conclusions:
In the present study, the addition of dexmedetomidine to ropivacaine in the caudal epidural blockade improved postoperative analgesia without significant adverse effects in pediatric patients.
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