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Serum bupivacaine concentrations following wound infiltration in children undergoing inguinal herniotomy
K A Mobley1, J G Wandless, D Fell
1Department of Anaesthesia, Leicester Royal Infirmary.
Insights
Wound infiltration with bupivacaine offers safe and effective pain relief for pediatric hernia repair. Measured serum concentrations were low, indicating minimal risk of toxicity in children.
Area of Science:
- Pediatric Surgery
- Anesthesiology
- Pharmacology
Background:
- Postoperative pain management is crucial for pediatric surgical patients.
- Hernia repair is a common pediatric surgical procedure.
- Local anesthetics are frequently used for localized pain control.
Purpose of the Study:
- To evaluate serum bupivacaine concentrations after wound infiltration for pediatric hernia repair.
- To assess the safety and efficacy of bupivacaine wound infiltration for postoperative analgesia in children.
Main Methods:
- Serum bupivacaine concentrations were measured in 12 children undergoing elective herniotomy.
- Patients received wound infiltration with 1.25 mg/kg of bupivacaine.
- Peak serum concentrations and time to peak were recorded.
Main Results:
- The mean (SD) peak serum bupivacaine concentration was 0.36 (0.14) µg/ml.
- The mean time to peak concentration was 14.6 (7.2) minutes.
- These concentrations were found to be below toxic levels and lower than other local anesthetic blocks.
Conclusions:
- Wound infiltration with bupivacaine is a safe and effective method for pediatric postoperative analgesia.
- This technique provides a simple approach to pain management for pediatric hernia repair.
- Low serum concentrations suggest a favorable safety profile for this analgesic strategy in children.
Abstract:
Serum bupivacaine concentrations were measured in 12 children who underwent elective herniotomy and who received analgesia in the form of wound infiltration. Mean (SD) peak concentration was 0.36 (0.14) micrograms/ml and time to peak concentration was 14.6 (7.2) minutes after infiltration of 1.25 mg/kg of bupivacaine. These concentrations are lower than those associated with other local anaesthetic blocks and well below potentially toxic levels. Wound infiltration provides a simple, effective and safe method of providing postoperative analgesia for hernia repair in children.