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  • Title: Hepatic venous outflow obstruction after right lateral sector living-donor liver transplantation, treated by insertion of an expandable metallic stent.
    Author: Tanimoto Y, Tashiro H, Itamoto T, Toyota N, Kohashi T, Amano H, Ohdan H, Ishiyama K, Oshita A, Asahara T.
    Journal: J Hepatobiliary Pancreat Surg; 2008; 15(2):228-31. PubMed ID: 18392721.
    Abstract:
    Hepatic venous outflow obstruction is a relatively uncommon but important and devastating complication occurring after liver transplantation. Recently, right lateral sector liver grafts have sometimes been used in living-donor liver transplantation (LDLT), but, to our knowledge, early hepatic venous outflow obstruction has never been reported in right lateral sector LDLT. A 58-year-old woman was diagnosed with liver cirrhosis and hepatocellular carcinoma and underwent right lateral sector LDLT. Postoperatively, she developed liver dysfunction. Doppler ultrasound examination revealed flat waveforms and low-flow velocity in the right hepatic vein (RHV). A computed tomography (CT) scan revealed a ventrally distorted RHV due to hypertrophy of the liver graft. Hepatic venous obstruction was suspected and a hepatic venogram was performed. The venogram revealed stenosis of the RHV due to the distortion of the vein. We performed percutaneous transfemoral balloon dilatation, but this was not effective. We then inserted an expandable metallic stent (EMS) into the RHV. After the EMS placement, the condition of the patient improved. Venogram and CT data suggested that the obstruction of the RHV developed because of distortion of the RHV to the ventral side during liver regeneration.
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