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American Journal of Roentgenology, Vol 165, 1145-1149, Copyright © 1995 by American Roentgen Ray Society

ARTICLES

Hepatic artery stenosis in liver transplant recipients: prevalence and cholangiographic appearance of associated biliary complications

PD Orons, R Sheng and AB Zajko
Department of Radiology, University of Pittsburgh Medical Center, PA 15213, USA.

OBJECTIVE. The occurrence of biliary strictures or bile duct necrosis in liver transplant recipients with hepatic artery stenosis has been well documented. This study was done to determine the prevalence and cholangiographic appearance of biliary complications in liver transplant recipients with hepatic artery stenosis and to determine if such complications occur with increased frequency compared with transplant recipients with patent hepatic arteries. MATERIALS AND METHODS. The study population consisted of 33 patients (17 male, 16 female; 1-65 years old) with angiographically proven significant hepatic artery stenosis after liver transplantation. All patients had T- tube or percutaneous transhepatic cholangiography performed within 4 months of hepatic arteriography. A retrospective review of radiographs was done to determine the prevalence and appearance of biliary complications in the study group compared with a control group of 58 patients with angiographically patent hepatic arteries who had liver transplants during the same period. RESULTS. Biliary complications were significantly more prevalent in patients with hepatic artery stenosis, with 22 (67%) showing cholangiographic abnormal findings compared with 16 (28%) in the control group (p = .001). The most significant abnormalities in patients with arterial stenosis were nonanastomotic biliary strictures seen in 16 (49%), compared with 13 (22%) in the control group (p = .04). Other findings (intraductal filling defects, anastomotic biliary stricture, and anastomotic bile leak) showed no statistically significant difference between the study and control groups. CONCLUSION. Biliary complications are significantly more prevalent in liver transplant recipients with hepatic artery stenosis. The most common complication seen on cholangiography was nonanastomotic biliary stricture.
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