Postoperative epidural analgesia in obese patients undergoing liver resection surgery.

Aim: To investigate the relation of body mass index (BMI) with postoperative pain scores and volume of local anaesthetic (LA) administered epidurally in patients undergoing liver resection surgery.

Methods: Retrospective data from 167 patients who had epidural analgesia (EA) for liver resection surgery were analysed: 123 with BMI < 30kgm-2 and 44 with BMI > 30kgm-2.

Results: Total volume of intraoperative bolus of epidural analgesia (EA) was not different between the BMI more than 30 kgm-2 and BMI less than 30 kgm-2 groups (p less 0.