Patients scheduled for major pancreatic surgery will be screened for malnutrition by five screening scores chosen depending on their clinical applicability. After surgery, it will be evaluated which score predicts the best complications.

Patients scheduled for major pancreatic surgery (pancreaticoduodenectomy, distal resection, total resection) will be screened for malnutrition by the following screening scores: Nutritional Risk Screening Score 2002; Subjective Global Assessment; Malnutrition Universal Screening Tool; Mini Nutritional Assessment and Short Nutritional Assessment Questionnaire.

The postoperative outcome will be recorded, and the predictive value of each score will be calculated.

Inclusion Criteria:

• Patients aged between 18 and 90 years undergoing major pancreatic resections (pancreaticoduodenectomy, distal pancreatic resection, total pancreatic resection) are eligible for inclusion. All patients are informed orally about all aspects of the trial. All conditions leading to primary pancreatic resection are eligible.

Exclusion Criteria:

• patients undergoing minor pancreatic resections.

The population of the study consists of consecutive patients, aged between 18 and 90, that will undergo major pancreatic surgery at the General and Pancreatic Surgery Unit, Pancreas Institute, University of Verona Hospital.