Comparison of Analgesic Efficacy between Bupivacaine with Dexamethasone and Bupivacaine Alone in Caudal Block for Pediatric Patients Undergoing Open Inguinal Hernia Repair

Abstract

Abstract Background Open inguinal hernial repair surgeries are one of the most frequently performed surgical procedures in the pediatric population. Using optimal analgesic regimen provide safe and effective analgesia, reduce postoperative stress response and accelerate recovery from surgery. Regional anesthetic techniques are commonly used to facilitate pain control in pediatric surgical procedures. The most used techniques in pediatrics is caudal block. Objective To evaluate the analgesic effect of dexamethasone when given caudally as an adjuvant to caudal block vs bupivacaine alone in caudal block for children undergoing open inguinal hernial repair surgeries. Methods The study is a prospective double – blinded randomized controlled trial conducted on 50 randomly chosen patients in Ain Shams University Hospitals after approval of the medical ethical committee. Patients were divided randomly into two groups; each group consisted of 25 patients. After preoperative assessment and obtaining baseline vital data, all patients received general anesthesia. Group BD who would receive caudal dexamethasone added to Bupivacaine and Group B who would receive caudal block with Bupivacaine. Results Dexamethasone addition shows statistically significance difference between two groups according to FLACC scale at 4h, 8h and 12h. The duration of adequate analgesia (FLACC pain score 4 or less) was significantly higher in group BD compared to group B. Conclusion Dexamethasone 0.1 mg/kg, when used as an adjuvant to caudal anesthesia, can significantly prolong the duration of postoperative analgesia. It is better than bupivacaine alone in caudal block at similar doses in controlling postoperative pain.