Abstract: Objective The purpose of this study was to summarize laparoscopic choledochal cyst resection in children. Methods The clinical materials in 26 children with choledochal cyst (CC) were retrieved and summarized between January 2019 and January 2024, and Todani classification showed type Ia in 16 cases (61.5%), type Ib in 1 case (3.8%), type Ic in 1 case (3.8%) and type VI in 8 cases (30.8%). Opencholedochal cyst resection (OCCR) were performed in 14 cases, and laparoscopic choledochal cyst resection (LCCR) and Roux-en-Y anastomosis of common hepatic duct and jejunum were underwent in 12 cases. All children were followed-up for three months. Results Operation time, recovery time of bowel sounds, first time of anal exhaust and hospital stay in LCCR group were(67.2±11.6)min, (22.0±4.8)h, (42.8±7.0)h and (6.5±1.2)d, all significantly shorter than [(85.4±13.5)min, (30.8±5.5)h, (56.5±7.4)h and (8.5±2.3)d, respectively, P<0.05] in OCCR group; by five days after operation, white blood cell count and serum C-reactive protein (CRP) level in open surgery group were (15.6±4.0)×10⁹/L and (26.8±2.9)mg/L, both much higher than [(12.8±3.7)×10⁹/L and (14.3±2.5)mg/L, respectively, P<0.05] in LCCR group; by three months after surgery, all operations succeeded in the two groups as validated by imaging, and no cysts recurred; post-operationally, bile leakage occurred in one case and pancreatic leakage in one case in LCCR group, and bile leakage occurred in one case and acute cholangitis in one case in OCCR group, no significant differences between the two groups(P>0.05). Conclusion The overall clinical efficacy of LCCR and Roux-en-Y anastomosis of common hepatic duct and jejunum in dealing with children with CC is satisfactory, with similar efficacy of OCCR, but damage less tissue wound, which might shorten operation time and improve recovery.

Key words: Choledochal cyst, Laparoscopic choledochal cyst resection, Roux-en-Y anastomosis of common hepatic duct and jejunum, Operation, Children