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  • Title: Unilateral versus bilateral endoscopic biliary stenting for malignant hilar biliary strictures.
    Author: Yasuda I, Mukai T, Moriwaki H.
    Journal: Dig Endosc; 2013 May; 25 Suppl 2():81-5. PubMed ID: 23617655.
    Abstract:
    The present review compared unilateral versus bilateral stenting in order to determine the optimal stenting strategy for malignant hilar biliary strictures based on the previous literature. The role of preoperative biliary drainage prior to liver resection for hilar cholangiocarcinoma remains under discussion. However, in Japan, endoscopic placement of single nasobiliary drainage in the future remnant hepatic lobe is currently considered the most suitable method. In most unresectable cases, unilateral stenting appears to be adequate for ameliorating jaundice. It is technically easier and less expensive than bilateral stenting, with reintervention for stent dysfunction also being considerably easier. However, contrast medium injection into undrained bile ducts is associated with uncontrolled cholangitis and poor prognosis. To prevent this complication, bilateral stenting may be preferred to unilateral stenting. Additionally, previous studies have demonstrated bilateral stenting to be associated with longer stent patency as compared to unilateral stenting. We consider that further large-scale studies are required to clarify whether unilateral or bilateral stenting is a better therapeutic technique for malignant hilar biliary stricture.
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