Analgesic Modalities in Patients Undergoing Open Pancreatoduodenectomy-A Systematic Review and Meta-Analysis.

Background: This systematic review explored the efficacy of different analgesic modalities and the impact on perioperative outcome in patients undergoing pancreatoduodenectomy.

Methods: A systematic literature search was performed on PubMed, Embase, Web of Science, Scopus, and Cochrane Library Database using the PRISMA framework. The primary outcome was pain scores on postoperative day one (POD1) and postoperative day two (POD2).