Deep Rectus Sheath Block for Laparoscopic Cholecystectomy

Patients scheduled for elective laparoscopic gastrectomy will be separated into 2 groups: Control Group and Deep Rectus Sheath Block Group. Patients in Control Group will be received patient controlled analgesia with morphine for postoperative analgesia. Patients in Deep Rectus Sheath Block Group will be performed Deep Rectus Sheath Block at the end of the surgery, along with patient controlled analgesia with morphine for postoperative analgesia. Morphine consumption for first postoperative 24 hours, numerical rating scale scores, amount of rescue analgesic drug, incidence of postoperative nausea and vomiting will be recorded.