Application value of preoperative portal vein embolization for type Ⅳ hilar cholangiocarcinoma        DAI Chao-liu*，GONG Zheng，JIA Chang-jun， et al.  *Department of Hepatobiliary and Splenic Surgery, Shengjing Hospital of China Medical University，Shenyang 110004，China
Corresponding  author：DAI Chao-liu，E-mail：278170678@qq.com
Abstract    Objective    To explore the application value of preoperative portal vein embolization (PVE) for type Ⅳ hilar cholangiocarcinoma. Methods    The data of 2 cases of type Ⅳ hilar cholangiocarcinoma performed preoperative PVE between December 2010 and February 2011 in Department of Hepatobiliary and Splenic Surgery, Shengjing Hospital of China Medical University were analyzed. Results    Two cases were performed percutaneous transhepatic biliary drainage (PTBD) to release the obstructive jaundice. After PVE was performed to induce liver remnant compensatory hyperplasia, future liver remnant/total liver volume (FLR/TLV) was 49.7%, 43.7%, and increased 7.9%, 5.4%, respectively. Then right liver and caudate lobe resection, hilar cholangiocarcinoma radical resection were performed. Patients got good recovery with disease-free survival 18, 19 months. Conclusion    PVE is considered safe and effective to increase FLR, increase the safety of the operation and reduce the incidence of postoperative liver failure.