• G T Deans, M S Wilson, and W A Brough.
• Stockport Unit for Minimally Invasive Therapy, Stepping Hill Hospital, UK.
• Br J Surg. 1998 Jul 1; 85 (7): 1013-4.

BackgroundA prospective randomized trial was performed to determine whether local anaesthetic solutions injected into the preperitoneal space may provide additional pain relief following transabdominal preperitoneal laparoscopic hernia repair.MethodsOne hundred patients undergoing transabdominal preperitoneal laparoscopic hernia repair were allocated randomly to receive (1) bupivacaine 1.5 mg/kg, (2) bupivacaine 1.5 mg/kg with 1 in 200000 adrenaline, (3) bupivacaine 3 mg/kg or (4) saline instilled into the preperitoneal space at the end of the operation. An independent clinical assessor determined the level of pain using a visual analogue pain score and noted the parenteral and oral analgesia requirements at 4, 8, 12 and 24 h after operation.ResultsAt each of the time intervals, there was no significant difference between the groups for pain scores (at 24 h, P = 0.71) or the number of doses of either morphine (at 24 h, P = 0.73) or oral analgesia (at 24 h, P = 0.89). There was also no significant difference in the time to return to normal activity or work between the groups.ConclusionThis study suggests that instilling local anaesthetic into the preperitoneal space has no significant effect on postoperative pain relief requirement following laparoscopic hernia repair. Other methods of reducing postoperative pain should be sought that may facilitate day-case laparoscopic hernia surgery.

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