Comparison of the Postoperative Analgesic Effects of RSB and CEB in Pediatric Patients Scheduled for Percutaneous Internal Ring Suturing

A total volume of 0.5 mL/kg of 0.25% bupivacaine-distributed equally between both sides-will be injected bilaterally under direct ultrasound guidance.

"A 22G caudal epidural needle will be inserted at approximately a 45° angle toward the sacral hiatus, and the characteristic click sensation will be felt upon passing the sacrococcygeal ligament. The needle will then be advanced carefully in the cephalad direction, parallel to the longitudinal axis of the spinal canal. After confirming correct placement by negative aspiration, 1 mL/kg of 0.25% bupivacaine will be administered."