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What Is Choledochoduodenostomy?

Choledochoduodenostomy is a biliary bypass operation that creates a direct connection between the common bile duct and the duodenum. The anastomosis provides a new pathway for bile to drain into the small intestine when normal bile flow is obstructed or repeatedly impaired. The connection can be constructed as a side-to-side or end-to-side anastomosis depending on the indication and anatomy. The procedure can be performed through an open or laparoscopic approach in selected patients.

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What Is Choledochoduodenostomy?

Choledochoduodenostomy is a biliary bypass operation that creates a direct connection between the common bile duct and the duodenum. The anastomosis provides a new pathway for bile to drain into the small intestine when normal bile flow is obstructed or repeatedly impaired. The connection can be constructed as a side-to-side or end-to-side anastomosis depending on the indication and anatomy. The procedure can be performed through an open or laparoscopic approach in selected patients.

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Why Is Choledochoduodenostomy Performed?

The procedure is used for selected benign biliary disorders when durable drainage is needed and endoscopic or percutaneous treatment is unsuccessful, unavailable, or unsuitable. Indications can include recurrent common bile duct stones, benign distal bile duct obstruction, or complex biliary disease requiring surgical bypass. The bile duct generally needs to be large enough and the duodenum mobile enough to create a wide, tension-free connection. Other biliary-enteric procedures can be preferred when disease location, malignancy, altered anatomy, or duct size makes choledochoduodenostomy unsuitable.

How Is Choledochoduodenostomy Performed?

The surgeon exposes the common bile duct and mobilizes the nearby duodenum so the two structures can meet without excessive tension. An opening is created in the bile duct and a matching opening is made in the duodenum. The two openings are sutured together to form a wide biliary-enteric anastomosis, or the common bile duct can be divided for an end-to-side reconstruction. The surgeon checks the connection for adequate drainage, hemostasis, and leakage before closing the operation.

What Is Recovery Like After Choledochoduodenostomy?

Patients are monitored after surgery for abdominal pain, fever, bile leakage, infection, bowel function, and liver-test abnormalities. Diet is advanced as gastrointestinal function returns and there is no evidence of a major leak or obstruction. Follow-up can include liver blood tests and imaging when symptoms suggest recurrent biliary obstruction or cholangitis. Recovery time depends on whether the procedure was laparoscopic or open and whether other biliary surgery was performed at the same time.

What Are the Risks and Complications?

Possible complications include bleeding, infection, bile leak, intra-abdominal abscess, cholangitis, anastomotic stricture, and duodenal leakage. A side-to-side choledochoduodenostomy can rarely develop sump syndrome when debris accumulates in the distal common bile duct below the anastomosis. Recurrent stones or narrowing can interfere with bile drainage and cause jaundice or infection. Endoscopic, percutaneous, or repeat surgical treatment can be required when late complications develop.

Frequently Asked Questions About Choledochoduodenostomy

What does choledochoduodenostomy connect?

It connects the common bile duct directly to the duodenum so bile can bypass a distal obstruction or drainage problem and enter the intestine.

Can choledochoduodenostomy be performed laparoscopically?

Yes. Laparoscopic biliary bypass has been described and can be used in selected patients when anatomy, disease, and surgical expertise are suitable.

What is sump syndrome after choledochoduodenostomy?

Sump syndrome is a late complication of some side-to-side operations in which debris collects in the distal bile duct segment and can cause pain, pancreatitis, or cholangitis.

Can the biliary connection become narrowed?

Yes. Anastomotic stricture can reduce bile drainage and cause jaundice, abnormal liver tests, or cholangitis, sometimes requiring endoscopic or surgical treatment.

References

Current assessment of choledochoduodenostomy. PubMed Central (PMC). https://pmc.ncbi.nlm.nih.gov/articles/PMC5697036/. Date Accessed August 13, 2026.

Laparoscopic choledochotomy and choledochoduodenostomy for the management of persistent common bile duct stones. PubMed. https://pubmed.ncbi.nlm.nih.gov/36199808/. Date Accessed August 13, 2026.

Choledochoduodenostomy as the biliary-enteric bypass of choice for benign and malignant distal common bile duct strictures. PubMed. https://pubmed.ncbi.nlm.nih.gov/24160798/. Date Accessed August 13, 2026.

Laparoscopic choledochoduodenostomy: review of a 4-year experience with an uncommon problem. PubMed. https://pubmed.ncbi.nlm.nih.gov/12080253/. Date Accessed August 13, 2026.

Sump syndrome: Diagnosis dilemmas and therapeutic approaches-A case series. PubMed. https://pubmed.ncbi.nlm.nih.gov/39493798/. Date Accessed August 13, 2026.