Published online Dec 21, 2019. doi: 10.3748/wjg.v25.i47.6847
Peer-review started: September 29, 2019
First decision: November 27, 2019
Revised: December 7, 2019
Accepted: December 13, 2019
Article in press: December 13, 2019
Published online: December 21, 2019
Core tip: This study aimed to evaluate the effect of preoperative biliary drainage and bile contamination on the outcomes of patients who undergo pancreaticoduodenectomy (PD). The database of 4101 patients who underwent PD was reviewed. Preoperative biliary drainage was performed in 1964 patients (47.9%), and bile contamination was confirmed in 606 patients (14.8%). In patients undergoing PD, bile contamination is related to postoperative infectious complication including postoperative pancreatic fistula Grade B/C. The management of biliary contamination should be standardised for patients who require preoperative biliary drainage for PD, as the main microorganisms are identical in both organ spaces and bile.