Patients under laparoscopic cholecystectomy has moderate to severe pain. This study will compare intraoperative hemodynamic parameters under two techniques of general anesthesia: The primary outcome pain was used for planning the sample size of participants and considered a variation of 3 points on VAS (Visual analogic scale of pain). The secondaries outcomes nausea/vomiting, sedation, ileus paralytics, urinary retention, time of discharge (PACU) and hospital stay, and patient satisfaction will be recorded and analyzed.