Investigation of the Effect of Intravenous Lidocaine Infusion on Postoperative Pain Treatment and Bowel Function in Robotic Bowel Surgery

Randomized Double Blind Prospective Investigation of the Effect of Intravenous Lidocaine Infusion on Postoperative Pain Treatment and Bowel Function in Robotic Bowel Surgery

Single center double blind randomised controlled trial. 60 subjects. Giving lidocaine IV or saline to patients due to robot assisted colorectal surgery. Primary outcome is cumulative morphine consumption at 24 hours.

Prospective double blind randomised controlled trial. The investigators are giving lidocaine IV or saline to 60 patients undergoing robot assisted colorectal surgery. Blinding and randomization is done by the hospital pharmacy. Both groups get otherwise the same treatment and a IV PCA (patient controlled administration) morphine pump for objectivisation of opioid consumption. Other outcome measures are NRS (numerical rating score) pain score, PONV (postoperative nausea and vomiting), use of antiemetics and opioid consumption up to 72 hours.

Inclusion Criteria:

• all patients due to robotic laparoscopic colorectal surgery, > 18years of age, danish speaking

Exclusion Criteria:

• allergy to lidocain or amid local analgetics, atrioventricular blok, liver- and/or kidney failure, chronic use of opioids or NSAIDS, pregnancy, breastfeeding women, treatment with betablockers, porphyria