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American Journal of Roentgenology, Vol 169, 1523-1527, Copyright © 1997 by American Roentgen Ray Society

ARTICLES

Benign biliary strictures associated with recurrent pyogenic cholangitis: treatment with expandable metallic stents

HK Yoon, KB Sung, HY Song, SG Kang, MH Kim, SG Lee, SK Lee and YH Auh
Department of Diagnostic Radiology, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul, South Korea.

OBJECTIVE: The purpose of this study was to determine the long-term effectiveness of expandable metallic stents in benign biliary strictures associated with recurrent pyogenic cholangitis and the differences in primary patency of the various types of stents deployed. SUBJECTS AND METHODS: During a 20-month period, 26 metallic stents (19 Gianturco-Rosch Z stents and seven Strecker stents) were used to treat benign biliary strictures associated with recurrent pyogenic cholangitis in 23 patients (11 men and 12 women; mean age, 42 years; range, 30-78 years). Insertion routes were percutaneous transhepatic biliary drainage tracts for 16 stents, T-tube tracts for seven stents, and retrograde endoscopic routes for three stents. The deployed locations were common hepatic or common bile ducts for 11 stents, right or left hepatic ducts for 10 stents, and segmental ducts for five stents. RESULTS: The initial technical success rate was 100%. Two stents in one patient migrated spontaneously. Primary stent patency for the remaining 24 stents was 34 months (range, 3-58 months). Primary stent patency of the Gianturco-Rosch Z and Strecker stents was 50 and 10 months, respectively (p < .05). Primary stent patency for the intrahepatic and extrahepatic ducts was 50 and 18 months, respectively (p = .05). Primary patency rates for all stents at 6, 12, 24, and 36 months were 92%, 75%, 67%, and 46%, respectively. The causes of stent obstruction were recurrent stone or sludge in eight stents and epithelial hyperplasia in five stents. CONCLUSION: We believe that metallic stent placement is not an effective long-term treatment technique for benign biliary stricture associated with recurrent pyogenic cholangitis.
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This article has been cited by other articles:


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M.-S. Park, J.-S. Yu, K. W. Kim, M.-J. Kim, J. P. Chung, S.-W. Yoon, J.-J. Chung, J. T. Lee, and H. S. Yoo
Recurrent Pyogenic Cholangitis: Comparison between MR Cholangiography and Direct Cholangiography
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[Abstract] [Full Text] [PDF]

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 Arch SurgHome page
K.-S. Jeng, I-S. Sheen, and F.-S. Yang
Are Expandable Metallic Stents Better Than Conventional Methods for Treating Difficult Intrahepatic Biliary Strictures With Recurrent Hepatolithiasis?
Arch Surg, March 1, 1999; 134(3): 267 - 273.
[Abstract] [Full Text] [PDF]


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Copyright © 1997 by the American Roentgen Ray Society.