In this study, we will compare 3 treatments. The first group of patients will receive the standard treatment (paracetamol, diclofenac and an opioid if necessary) with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) . The second group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional injection of the local anesthetic ( 0.5% levobupivacaine, non -diluted) in the peritoneal cavity via a trocar both at the beginning and the end of the surgery . The third group of patients will receive the standard of care, with infiltration of the portal sites with the local anesthetic ( 0.5% levobupivacaine) and additional intraperitoneal atomization of the local anesthetic. We will use non-diluted 0.5% levobupivacaine delivered directly onto the target sites both at the beginning and the end of surgery. The drug will be delivered using OptiSpray® surgical spray device, an inexpensive delivery system that will direct a fine mist of drug directly to the areas of the peritoneal cavity that are theoretically the cause of post-op pain (diaphragms, peritoneal abdominal surface, surgical dissection site).