Management of biliary problems after liver transplantation

Area of Science:

• Hepatology
• Transplant Surgery
• Gastroenterology

Background:

• Biliary complications occur in approximately 12.5% of liver transplant recipients.
• These complications are significant sources of morbidity, though uncommon causes of mortality.
• Early post-transplant biliary issues often stem from technical factors, whereas late complications are multifactorial.

Purpose of the Study:

• To review the causes, diagnosis, and management of biliary complications following liver transplantation.
• To differentiate between early and late-onset biliary complications and their respective etiologies.
• To discuss current treatment strategies for various types of biliary complications.

Main Methods:

• Review of literature on liver transplant biliary complications.
• Analysis of diagnostic modalities including imaging and cholangiography.
• Evaluation of management strategies based on complication type and timing.

Main Results:

• Early leaks and strictures are typically technical; late strictures involve complex causes like hepatic artery issues, preservation injury, rejection, or recurrent disease.
• Diagnosis requires imaging and cholangiography, with hepatic artery patency crucial for biliary tree complications.
• Anastomotic strictures show promise with percutaneous and endoscopic treatments for long-term success.

Conclusions:

• Management of late biliary complications depends on stricture nature and extent.
• Nonsurgical approaches are less effective for complex hilar and intrahepatic strictures.
• Surgical revision or retransplantation may be necessary for definitive treatment of complex cases.