Early Definitive Surgery for Congenital Biliary Dilatation in Children Is Associated With Lower Morbidity: Comparison of Infant and School‐Age Children From 231 Consecutive Cases in a Multicenter Study in the Kyushu Area of Japan During the Past Decade

Abstract Purpose: There has been little discussion on the differences in characteristics and long‐term outcomes of congenital biliary dilation (CBD) by age group. Methods: We conducted a regional multicenter study to investigate all pediatric cases of CBD in the Kyushu area of Japan over the past decade. Patient background, operative results, and postoperative complications were investigated. Results were compared between preschool children under 7 years of age and school‐age children over 7 years of age. Results: A total of 187