Management issues in post living donor liver transplant biliary strictures

Table 3 Definitions

Term	Definition
Anastomotic biliary stricture	ERCP/PTC - Dominant narrowing at the anastomotic site without effective drainage of the contrast material
	MRCP - More than 50% reduction in anastomotic diameter compared to intrahepatic duct
Successful initial endoscopic outcome	Stricture negotiated with stent with continuous improvement in liver functions
Successful long-term endoscopic outcome	Persistent patency of the anastomotic site on cholangiography after stent removal (anastomotic site > 80% of intrahepatic ductal diameter)
Initial endoscopic treatment failure	Inability to negotiate the stricture on ERCP
Endoscopic treatment failure	Persistence of the stricture after 12 mo of therapy
Persistent ABS	Visible stricture on cholangiography after stent removal, measuring less than 80% of the diameter of the intrahepatic duct or hindering effective drainage of contrast medium
Recurrence of stricture	Biochemical derangement with ERCP documented recurrence of stricture after initial success

ERCP: Endoscopic retrograde cholangiopancreatography; PTC: Percutaneous transhepatic cholangiography; ABS: Anastomotic biliary strictures; MRCP: Magnetic resonance cholangiopancreatography.