Sanghyun Choi, Presenter: Nothing to Disclose

Dong Il Gwon, Abstract Co-Author: Nothing to Disclose

Gi-Young Ko MD, Abstract Co-Author: Nothing to Disclose

Kyu-Bo Sung MD, Abstract Co-Author: Nothing to Disclose

Jin Hyung Kim MD, Abstract Co-Author: Nothing to Disclose

Hyun-Ki Yoon, Abstract Co-Author: Nothing to Disclose

To investigate the outcome of ipsilateral, metallic stent placement in patients with contralateral, portal vein occlusion caused by advanced hilar malignancy, and to compare the outcome of unilateral versus bilateral, metallic stent placement.

From January 2007 to December 2009, this retrospective study included 41 patients treated by percutaneous placement of metallic stents. All patients had unilobar, portal vein occlusion caused by advanced hilar malignancies. Unilateral stent placement (group A) was performed for 23 patients and bilateral stent placement (group B) for 18 patients.

There were no significant differences in technical success (p > .999), successful drainage (p > .999), early cholangitis (p = .734), stent occlusion (p = .713), stent patency (p = .653) or patient survival (p = .493) in the two groups. In group A, during the follow-up period, a mild diameter decrease of the intrahepatic bile duct of the undrained lobe with portal vein occlusion was observed (mean diameter was 7.2 ± 3-mm before drainage; 6.2 ± 3-mm after stent placement) (p = .058). Other than the four patients with stent malfunction, none of the 19, group A patients experienced cholangitis or jaundice until either death or the end of the study.

It may not be necessary to place a bilateral stent in a patient with unilobar, portal vein occlusion caused by advanced hilar malignancy. Moreover, unilateral stent placement in the lobe with the patent portal vein seems to be a safe and effective method for the palliative treatment of patients with contralateral, portal vein occlusion caused by advanced hilar malignancy.

Unilateral stent placement in the lobe with the patent portal vein is safe and effective for the palliative treatment of patients with contralateral, portal vein occlusion caused by hilar malignancy.

Choi, S, Gwon, D, Ko, G, Sung, K, Kim, J, Yoon, H, Percutaneous Metallic Stent Placement in Patients with Unilobar, Portal Vein Occlusion Caused by Advanced Hilar Malignancy: Unilateral Stenting Outcome and Comparison of Unilateral and Bilateral Stenting.  Radiological Society of North America 2010 Scientific Assembly and Annual Meeting, November 28 - December 3, 2010 ,Chicago IL. http://archive.rsna.org/2010/9010420.html