Patients undergoing laparoscopic sleeve gastrectomy as bariatric procedure will be randomized into 2 groups. In one group after the stapling and section of the stomach with stapling devices (EndoGIA, Covidien, USA), a staple line inversion with hemostatic and aims will be performed. Staple line inversion will be performed with a running suture of Polypropylene 2/0. In the second group, the gastric section will be performed with a stapler with preloaded buttress material (EndoGIA with reinforced reload, Covidien, USA).~Postoperative nausea and vomits during the first 24 hours after surgery will be investigated.
Patients undergoing laparoscopic sleeve gastrectomy will be randomized into 2 groups. In one group, a staple line inversion with a running suture of Polypropylene will be performed. In the second group, the gastric section will be performed with a stapler with preloaded buttress material~Postoperative nausea and vomits during the first 24 hours will be investigated.