Preincisional and intraperitoneal ropivacaine plus normal saline infusion for postoperative pain relief after laparoscopic cholecystectomy: a randomized double-blind controlled trial.

Background: A clinical trial was designed to assess the use of preincisional and intraperitoneal ropivacaine, combined or not with normal saline, to reduce pain after laparoscopic cholecystectomy (LC).

Methods: For this trial, 120 patients were randomly assigned to six groups. For all the patients, preincisional local infiltration of ropivacaine around the trocar wounds was performed.