Patients undergoing laparoscopic surgery suffer in 30-85% of cases of referred pain in the shoulder in the first days following their intervention. Pain can be disabling and may even delay the discharge of patients. Several techniques have been proposed to reduce this problem. Promising strategies include the reduction of CO2 insufflation flow, lung recruitment maneuvers and active aspiration of intraperitoneal air at the end of surgical procedure to force gas discharge. The investigators wish to perform a randomized controlled trial with 160 women, who will assess the effect of a combined approach, combining for the first time lung recruitment maneuvers and aspiration of pneumoperitoneum in the Trendelenburg position at the end of surgery and flow of insufflation reduces carbon dioxide (CO2) forming the pneumoperitoneum during surgery, on the intensity of shoulder pain postoperatively. In the control group the evacuation of the pneumoperitoneum will be done by opening the trocars and external abdominal pressure at the end of surgery. No study to our knowledge has tested the active aspiration maneuvers gas after laparoscopic surgery in gynecology. The study will be preceded by a pilot study in 15 participants, who will be assigned to the control group to determine the basic rate of referred pain in the shoulder in our people and improve test management.

Inclusion Criteria:

• women, 18-65 years
• physical ASA score 1-2
• Elective laparoscopic surgery for benign cause
• patients who have been informed of the study and has agreed to sign the ICF

Exclusion Criteria:

• physical ASA score 3-4
• pregnant women
• chronic pain syndrome or preoperative pain syndrome
• narcotics consumption, chronic preoperative analgesia
• alcohol or drug dependence
• inability to provide telephone follow up at 48 hours
• laparoscopy not possible at the umbilical level.