Routine drain placement after choledochal cyst (CDC) excision and Roux-en-Y hepatojejunostomy (RYHJ) is commonly practiced to predict and prevent bile/pancreatic leaks and hemorrhage. Recently, laparoscopic excision of CDC has decreased postoeprative morbidity. The necessity of drainage has been questioned. We undertook a prospective randomized trial to assess the need for drainage.
Diao, M., Li, L., & Cheng, W. (2012). To drain or not to drain in Roux-en-Y hepatojejunostomy for children with choledochal cysts in the laparoscopic era: A prospective randomized study. Journal of Pediatric Surgery, 47(8), 1485 - 1489. https://doi.org/10.1016/j.jpedsurg.2011.10.066