Choledochal cysts surgical management: Retrospective and historical comparative analysis. / Manejo quirúrgico de los quistes de colédoco: análisis retrospectivo y comparativa histórica.

INTRODUCTION: Choledochal cysts are rare bile duct dilatations, which have higher prevalence in Asian population. The aim of the study was to analyze clinical and surgical results about biliary cysts management. In addition, a comparative historical analysis was performed. METHODS: Patients who underwent surgery between January 1988 and December 2019 in a single tertiary level center were retrospectively included. Demographic and clinical patient data; cyst types; diagnostic methods and surgical technique were analyzed, as well as short and long-term follow-up complications. A comparative descriptive study focus on the main historical series was also carried out. RESULTS: A total of seventeen patients were identified; 58.8% were men. The mean age at diagnosis was 39.9 years (SD: 20.54). The median follow-up was 5 years (IQR 1-15). The most frequent cysts were tipe I (41.2%). Abdominal pain was the most common presenting symptom (58.8%). Cystic excision with bilio-enteric anastomosis was the main procedure, it was underwent in 85, 7% type I cysts. 29.4% postoperative complications were recorded. Malignancy was not documented in any pathology specimen. CONCLUSIONS: Choledochal cysts are an uncommon disorder whose diagnosis requires a high level of suspicion. Surgical treatment depends on type of cyst. In most patients with choledochal cysts disease, complete cyst excision with bilio-enteric anastomotic reconstruction is the treatment of choice.