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학술저널
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대한소화기내시경학회 Clinical Endoscopy Clinical Endoscopy 제52권 제1호
발행연도
2019.1
수록면
40 - 46 (7page)

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Combined obstruction of the bile duct and duodenum is a common occurrence in periampullary malignancies. The obstruction ofgastric outlet or duodenum can follow, occur simultaneously, or precede biliary obstruction. The prognosis in patients with combinedobstruction is particularly poor. Therefore, minimally invasive palliation is preferred in these patients to avoid morbidity associatedwith surgery. Endoscopic palliation is preferred to surgical bypass due to similar efficacy, less morbidity, and shorter hospital stay. The success of endoscopic palliation depends on the type of bilioduodenal stenosis and the presence of previously placed duodenalmetal stents. Biliary cannulation is diffcult in type II bilioduodenal strictures where the duodenal stenosis is located at the level ofthe papilla. Consequentially, technical and clinical success is lower in these patients than in those with type I and III bilioduodenalstrictures. However, in cases with failure of endoscopic retrograde cholangiopancreatography, with the introduction of endoscopicultrasound for biliary drainage, the success of endoscopic bilioduodenal bypass is likely to increase further. The safety and effcacy ofendoscopic ultrasound-guided drainage has been documented in multiple studies. With the development of dedicated accessories andstandardization of drainage techniques, the role of endoscopic ultrasound is likely to expand further in cases with double obstruction.

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