Management of Malignant Gastric Outlet Obstruction Between Surgery and Endoscopy

The aim of this observational study is to compare the outcomes of three different procedures performed for the management of malignant Gastric Outlet Obstruction due to Pancreatic Cancer. Patients who undergo: * Surgical gastroenterostomy * Endoscopic placement of a self-expanding metallic stent * EUS-guided gastroenterostomy in accordance with standard clinical practice, will be enrolled to evaluate potential differences between the procedures in terms of clinical success, eating experience, chemotherapy tolerance, and nutritional status during follow-up. Participants will be asked to complete a quality of life questionnaire at baseline and during follow-up; however, no additional procedures will be conducted as a result of participation in the study.