Polyorethaoe-covered nitinol strecker stents as primary palliative treatment of malignant biliary obstruction |
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Authors: | Shuzo Kanasaki MD Akira Furukawa Teruyuki Kane Kiyoshi Murata |
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Institution: | (1) Department of Radiology, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu Shiga, 520-2192, Japan, JP;(2) Department of Internal Medicine, Yujinkai Yamazaki Hospital, Takegahana-cho 80, Hikone Shiga, Japan, JP |
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Abstract: | Purpose: To evaluate the clinical efficacy of the polyurethane-covered Nitinol Strecker stent in the treatment of patients with malignant
biliary obstruction.
Methods: Twenty-three covered stents produced by us were placed in 18 patients with malignant biliary obstruction. Jaundice was caused
by cholangiocarcinoma (n = 5), pancreatic cancer (n = 6), gallbladder cancer (n = 4), metastatic lymph nodes (n = 2), and tumor of the papilla (n = 1).
Results: The mean patency period of the stents was 37.5 weeks (5–106 weeks). Recurrent obstructive jaundice occurred in two patients
(11%). Adequate biliary drainage over 50 weeks or until death was achieved in 17 of 18 patients (94.4%). Late cholangitis
was observed in two patients whose stents bridged the ampulla of Vater. Other late severe complications were not encountered.
Conclusion: Although more study is necessary, our results suggest the clinical efficacy of our covered Nitinol Strecker stent in the
management of obstructive jaundice caused by malignant diseases. |
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Keywords: | : Covered stents— Metallic stents— Biliary obstruction— Endoprosthesis— Jaundice— Malignancy |
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