Abstract
Endoscopic biliary stenting across the duodenal papilla can obstruct the adjacent pancreatic orifice and disturb the flow of pancreatic juice, which may result in pancreatitis. However, the relationship of endoscopic biliary stenting to post-procedure pancreatitis has not been thoroughly examined. Therefore, we have reviewed the published literature on this issue. Although biliary stenting, especially with large-bore and self-expandable metallic stents (SEMSs), has been considered a possible additional risk factor for pancreatitis following biliary stenting, most studies have not provided convincing supporting evidence; this failure may be due to inadequate study design or insufficient numbers of subjects. It also remains unclear whether endoscopic sphincterotomy (EST) performed prior to biliary stenting decreases the incidence of post-stenting pancreatitis; some recent studies have claimed that EST is not necessary before biliary stenting, even with placement of SEMSs. Well-designed studies with a large number of subjects will be needed to clarify these issues.
Published Version
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