Risk factors contributing to hepatic artery thrombosis following living-donor liver transplantation
This study was carried out to investigate the risk factors contributing to hepatic artery thrombosis in living-donor liver transplantation.
Two hundred and twenty-two recipients (113 adults and 109 children) of living-donor liver transplantation were the subjects of this study. The diagnosis of hepatic artery thrombosis was made by color-Doppler ultrasonography and/or hepatic angiography. Parameters for this study were: (1) donor sex, age, and body weight; (2) recipient sex, age, body weight, liver disease, preoperative prothrombin time, and type of arterial reconstruction; and (3) previous liver transplantation.
Hepatic artery thrombosis occurred in 12 patients (5.4%) at 3 to 15 days posttransplant. Recipient female sex and metabolic disorder as the original disease were found to be significantly associated with hepatic artery thrombosis. The 5-year patient survival rate in recipients with hepatic artery thrombosis (58.3%) was significantly lower than that in recipients without this complication (84.4%).
Female sex and metabolic disease may be factors contributing to hepatic artery thrombosis after living-donor liver transplantation. More intensive anticoagulation therapy for this patient population might decrease the incidence of hepatic artery thrombosis and, thus, posttransplant recipient mortality.
Key wordsSex Metabolic liver disease Vascular reconstruction Anticoagulation
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