PMC2958512_01
Endosonography-guided biliary drainage ((a) endosonography; (b) duodenoscopy; (c) fluoroscopy). Using a convex linear-array echoendoscope, puncture of the extrahepatic bile duct via the duodenal bulb was performed with a 19G needle (arrow) (a). A fully-covered metal stent (c, arrows) (covered ZEOSTENT), 6 cm in length and 1 cm in diameter, was placed via the puncture tract (b, c).
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fig1
Using a convex linear array echoendoscope (GF-UCT240: Olympus Medical Systems, Co., Ltd., Tokyo, Japan), puncture of the extrahepatic bile duct via the duodenal bulb was performed with a 19G needle after obtaining the informed consent from the patient (Figure 1(a)). Following dilation of the puncture tract with a balloon catheter, 4 mm in diameter, a fully-covered metal stent (covered ZEOSTENT: Zeon Medical Inc., Tokyo, Japan), 6 cm in length and 1 cm in diameter, was placed across the puncture tract to bridge the duodenum and the bile duct (Figures 1(b) and 1(c)).
Duodenal stenting ((a) endoscopy; (b) fluoroscopy). Using a duodenal scope, a duodenal metal stent (b, arrows) (WallFlex duodenal stent), 6 cm in length and 22 mm in diameter, was placed across the stricture (a, b).
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fig2
Natick, MA), 6 cm in length and 22 mm in diameter, was placed across the stricture of the duodenum (Figure 2). No procedure-related complications occurred.