Transjugular liver biopsy (TJLB) is an accepted alternative method of obtaining hepatic tissue for pathologic diagnosis in patients with parenchymal liver disease, but in whom conventional percutaneous transhepatic liver biopsy is contraindicated due to coagulopathy, a large amount of ascites, or massive obesity (1, 2). Transjugular liver biopsy is also indicated in patients with liver function deterioration following liver transplant and in patients with congenital clotting disorders (1, 2).There are generally few complications following TJLB; the liver-puncture-related major complication rate was reported to be 0.2% in a review of 64 published reports involving 7,493 adults who had undergone TJLBs (2). We have treated 3 patients with intrahepatic pseudoaneurysms following 503 TJLBs in 320 liver transplant recipients since 2005, and report our experience for managing intrahepatic pseudoaneurysms following TJLB.
Case Reports
Case 1A 34-year-old man who had undergone right lobe living donor liver transplantation (LDLT) 24 days previously was referred to our department for TJLB caused by deteriorating liver function. The laboratory data were as follows: serum aspartate aminotransferase, 297 IU/L; alanine transaminase, 497 IU/L; total bilirubin, 8.7 mg/dL; hemoglobin, 10.4 g/dL; platelet count, 243 × 10 3 /mm 3 ; and international normalized ratio (INR), 1.02. Although coagulation function was normal, the clinician in charge preferred TJLB to percutaneous transhepatic biopsy in order to avoid the risk of post-biopsy bleeding. A pre-TJLB CT revealed no abnormal findings in the liver graft. A TJLB (5 passes) using an 18-gauge Quick-Core biopsy needle (Cook, Bjaeverskov, Denmark) was performed uneventfully in the right hepatic vein. A pathology examination revealed severe canalicular and ductular cholestasis without evidence of rejection. The liver function gradually improved; however, the hemoglobin level fluctuated between 7.9 and 8.9 g/dL from 4 days post- An intrahepatic pseudoaneurysm is a rare complication following transjugular liver biopsy. Transarterial embolization is considered a safe and effective treatment for treating pseudoaneurysms. Herein we report three cases of intrahepatic pseudoaneurysms following transjugular liver biopsies. The three pseudoaneurysms were managed by the following methods: transarterial embolization, percutaneous transhepatic embolization, and close observation.