Congenital bile duct dilatation in children
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Congenital biliary dilatation in children often affects both intrahepatic and extrahepatic bile ducts. Surgical management, including Roux-en-Y hepaticojejunostomy, yields satisfactory results for biliary tree anomalies.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Medical Imaging
Background:
- Congenital dilatation of the biliary tree is a rare condition affecting children.
- It frequently involves both intrahepatic and extrahepatic bile ducts, necessitating comprehensive assessment.
Purpose of the Study:
- To evaluate diagnostic imaging modalities for congenital biliary dilatation in pediatric patients.
- To discuss the surgical and postoperative management strategies for congenital biliary dilatation.
Main Methods:
- Review of 15 pediatric cases with congenital biliary dilatation.
- Assessment of diagnostic imaging techniques: ultrasonography, endoscopic retrograde cholangio-pancreatography (ERCP), and percutaneous transhepatic cholangiography (PTC).
- Surgical intervention using Roux-en-Y hepaticojejunostomy with a hepaticocutaneous arm.
Main Results:
- 87% of patients had both intrahepatic and extrahepatic biliary dilatation.
- Ultrasonography, ERCP, and PTC are viable for pre-operative visualization.
- Roux-en-Y hepaticojejunostomy provided satisfactory outcomes, enabling stone removal via the hepaticocutaneous arm.
Conclusions:
- Accurate pre-operative assessment of the entire biliary tree is critical for effective surgical planning.
- The hepaticocutaneous arm facilitates postoperative management and intervention, such as choledochoscopy for stone removal.
- Congenital biliary dilatation requires a multidisciplinary approach involving imaging and surgical expertise.
Abstract:
Fifteen children under the age of 15 were identified to have congenital dilatation of the biliary tree. Thirteen of them (87%) had dilatation of both intrahepatic and extrahepatic bile ducts, while two had extrahepatic biliary dilatation only. Visualization of both intrahepatic and extrahepatic biliary tree in small children before operation is possible by ultrasonography, endoscopic retrograde cholangio-pancreatography, or percutaneous transhepatic cholangiography. The advantage and disadvantage of those methods of examinations in children are discussed here. Dilatation of intrahepatic bile ducts is common in children with extrahepatic biliary dilatation. Assessment of both the intrahepatic and extrahepatic bile ducts bears a crucial role in the management of congenital biliary dilatation at operation and during the postoperative follow-up. Rouxen-Y hepaticojejunostomy with hepaticocutaneous arm was performed in our patients with satisfactory results. Residual intrahepatic stones could be removed through the hepaticocutaneous arm by choledochoscopy.