The high rate of spontaneous migration of small size common bile duct stones may allow a significant reduction in unnecessary ERCP and related complications: results of a retrospective, multicenter study

Common bile duct stones (CBDS) can spontaneously migrate through the duodenal papilla. In this case, ERCP could be unnecessary and a significant rate of complications could be avoided. In this study, we aim at retrospectively evaluating the rate of spontaneous stone passage in patients with an imaging diagnosis of CBDS and at analysing the factors associated to spontaneous stone migration.We conducted a retrospective multi-centre analysis of...