Original articleThis study has been presented previously at the 11 th French congress of digestive and hepato-bilio-pancreatic surgery in November 2015.
Source of financial supports:This study did not received financial supports.
Conflicts of interest:The authors have no conflicts of interest to declare.
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Word count for the abstract: 202Keywords: Chronic pancreatitis; Bile duct obstruction, Frey procedure Running Head: Frey procedure and chronic pancreatitis Author's contribution: AM and LS designed and conducted the study, performed the analysis and interpretation of the data, and wrote and finalized the manuscript. AM, MR, YH, KT and LT collected the data. DB performed the statistical analysis. KB, AM and LS analyzed and interpreted the data and revised the manuscript. BM and LS revised the manuscript and gave final approval for publication.