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CardioVascular and Interventional Radiology
Published in: CardioVascular and Interventional Radiology 4/2016

01-04-2016 | Clinical Investigation

Malignant Hilar Biliary Obstruction: Treatment by Means of Placement of a Newly Designed Y-Shaped Branched Covered Stent

Authors: Jong Hyouk Yun, Gyoo-Sik Jung, Jung Gu Park, Byung Chul Kang, Dong-Hoon Shin, Byung Chul Yun, Sang Uk Lee

Published in: CardioVascular and Interventional Radiology | Issue 4/2016

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Abstract

Purpose

To evaluate the technical feasibility and clinical efficacy of placement of a newly designed Y-shaped branched covered stent for palliative treatment of malignant hilar biliary obstruction.

Methods

From June 2011 to September 2014, 34 consecutive patients with malignant hilar biliary obstruction underwent percutaneous placement of a Y-shaped branched covered stent for palliative treatment. Technical and clinical success, complications, cumulative patient survival, and stent patency were evaluated.

Results

Stent placement was technically successful in all patients. All patients showed adequate biliary drainage on the follow-up cholangiogram. Mean serum bilirubin level (10.9 mg/dl) decreased significantly 1 week (5.7 mg/dl) and 1 month (2.6 mg/dl) after stent placement (p < 0.01). Complications associated with the procedure included hemobilia (n = 3) and biloma (n = 1). During the mean follow-up period of 225 (range 12–820) days, nine patients (26.5 %) developed stent occlusion caused by tumor overgrowth (n = 8) and sludge (n = 1). Two of them underwent coaxial placement of a second stent with good results. The median survival time was 281 days and median primary stent patency was 337 days. There were no significant differences in the patient survival and stent patency rates in relation to age, sex, or Bismuth type.

Conclusion

Percutaneous placement of the Y-shaped branched covered stent seems to be technically feasible and clinically effective for palliative treatment of malignant hilar biliary obstruction.
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Metadata
Title
Malignant Hilar Biliary Obstruction: Treatment by Means of Placement of a Newly Designed Y-Shaped Branched Covered Stent
Authors
Jong Hyouk Yun
Gyoo-Sik Jung
Jung Gu Park
Byung Chul Kang
Dong-Hoon Shin
Byung Chul Yun
Sang Uk Lee
Publication date
01-04-2016
Publisher
Springer US
Published in
CardioVascular and Interventional Radiology / Issue 4/2016
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-015-1205-1

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