A systematic review of the effect of preoperative nutrition support on nutritional status and treatment outcomes in upper gastrointestinal cancer resection

Background Malnutrition is highly prevalent in patients with Upper Gastrointestinal (UGI) cancer and is associated with poor outcomes. However, there are no evidence-based guidelines for nutrition support specific to UGI cancer surgery. Methods Databases including MEDLINE, PUBMED, CINAHL, Web of Science, Cochrane Central and Clinicaltrials.gov were systematically searched. Abstracts of studies investigating the effect of preoperative nutrition...