Opioid-free Vs Traditional Balanced Anesthesia in Laparoscopic Colorectal Surgery

The objective of the study is to know the efficacy of OFA in laparoscopic colorectal surgery. The consumption of opiates will be evaluated according to the VAS scale, defining non-tolerable pain greater than 5. The number of rescues required, the time elapsed until the first rescue and the total consumption of opiates administered will be evaluated. Other variables that will be evaluated will be safety variables defined as intraoperative complications that require immediate action by the anesthesiologist, interruption of the procedure, or conversion to open surgery. Other variables evaluated will be postoperative complications: * Postoperative hypoxemia. * Incidence of postoperative nausea and vomiting (PONV). * Postoperative ileus. * surgical complications. * medical complications