Abstract
Since its introduction 1979, endoscopic biliary stenting has become the method of first choice to treat cholestasis in malignant or benign biliary obstuction or leakage of biliary fistulas. The success rate of endoscopic biliary stenting generally exceeds 90% and procedure-related complications are rare. Although metal stents are becoming more popular, plastic stents are still the first choice. Their major drawback is occlusion with sludge mediated by bacteria. Pharmaco-chemical measures failed to prevent occlusion. With Teflon material and a 10-French stent, stent exchange rates were reduced to 15% in patients with malignant biliary obstruction, the shape without sideholes showing the best results. Stent exchange is easily feasable. Metal stents are expensive and more difficult to handle. Occlusion with sludge is rare, but patency is limited by tumor ingrowth. Metal stents may be indicated in selected patients, such as those with recurrent stent occlusion causing cholangitis. If only a small-caliber prosthesis (7-Fr) can be placed (e.g. in Klatskin tumor) metal stents may have a longer patency than plastic stents. Metal stents should not be used in benign biliary obstruction because these stents are not removable.
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Seitz, U., Goenka, M.K., Bohnacker, S. et al. Endoscopic biliary stenting: Plastic stent or expandable metallic stent?. J Hep Bil Pancr Surg 4, 24–30 (1997). https://doi.org/10.1007/BF01211340
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DOI: https://doi.org/10.1007/BF01211340