Covered Self-Expanding Transhepatic Biliary Stents:Clinical Pilot Study

Journal Article · Fri Nov 15 04:00:00 EST 1996 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S002709900002· OSTI ID:21080561

Thurnher, Siegfried A; Lammer, Johannes; Thurnher, Majda M; Winkelbauer, Friedrich; Graf, Oswald; Wildling, Reinhard ^[1]

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1. Department of Radiology, University Hospital, Waehringer Guertel 18-20, A-1090 Vienna (Austria)

Purpose: We report our preliminary results with a new type of self-expanding covered stent for treatment of malignant biliary obstruction. Methods: Wallstents, fully covered with high elasticity polyurethane, with an unconstrained diameter of 10 mm and a total length of 69 mm, were placed transhepatically under fluoroscopic guidance in five patients. The length of the biliary obstruction varied between 30<+>-<+>50 mm. At 1 and 3 months (82<+>-<+>98 days) clinical assessment, serum bilirubin measurement, and ultrasound examination of the biliary tree were performed. Results: Initial uncomplicated deployment of the stents and internal drainage was possible in all patients. Distal stent migration resulted in early biliary reobstruction in one patient. At 3-month follow-up, partial reobstruction, most probably due to sludge formation, was found in another patient. Conclusion: Our initial results indicate that the covered, self-expanding Wallstent endoprosthesis can be reliably and safely deployed transhepatically for malignant biliary obstruction.

• OSTI ID: 21080561
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 1 Vol. 19; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
BILE
BILIRUBIN
PATIENTS
POLYURETHANES
SLUDGES