The Role of the Human Microbiome in Patients After Pancreatic Resection.

The goal of this observational study is to classify patients that undergo pancreatic resection for presumed pancreatic or periampullary malignancy into high and low risk groups for postoperative complications based on longitudinal saliva, rectal/faecal, tumor, blood and/or bile microbiome profiles. To identify the dynamics of the microbiome, as well as the possibly related short-term and long-term complications, multiple samples at different timepoints are needed from the patients.