This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gallbladder, Subject name: Surgery
[{'content': "Sump syndrome occurs most commonly after:- \nSelect and explain. \nA. Cholecystojejunostomy, B. Choledochoduodenostomy, C. Mirizzi's syndrome, D. Choledochojejunostomy", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sump syndrome Sump syndrome: paiculate matter, stones, and food debris accumulate and stagnat in the distal, "blind" end of the common duct Sump syndrome occurs after choledochoduodenostomy Management Endoscopic management, consisting of sphincterotomy with or without balloon dilation of the anastomosis End-to-side hepaticojejunostomy, Roux-en-Y, to prevent persistent regurgitation of intestinal contents and to remove the "sump" permanently, is preferred surgical procedure.', 'role': 'assistant'}]