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DOI: 10.1055/a-0605-3198
Salvage procedure following lumen-apposing metal stent maldeployment during endoscopic ultrasound-guided biliary drainage
Corresponding author
Publication History
Publication Date:
12 June 2018 (online)
A jaundiced 82-year-old-woman was diagnosed with a cephalopancreatic, locally advanced adenocarcinoma. Endoscopic retrograde cholangiopancreatography was planned, but biliary cannulation was not achieved because of a large periampullary diverticulum ([Fig. 1]). We therefore decided to perform endoscopic ultrasound (EUS)-guided biliary drainage using an 8-mm electrocautery-tipped lumen-apposing metal stent (LAMS; AXIOS-EC, Boston Scientific, Marlborough, Massachusetts, USA).
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The dilated common bile duct (CBD) ([Fig. 2]) was accessed from the bulb under EUS guidance with the electrocautery-tipped delivery system in a “freehand” fashion [1]. The distal flange did not fully expand because the tip of the catheter was too close to the facing wall of the CBD in an oblique direction, leaving insufficient room for the stent to fully open ([Fig. 3]). To secure the access to the CBD, a guidewire was inserted through the catheter into the biliary tree ([Fig. 3]). To allow the distal flange to fully open, the catheter was slightly withdrawn; however, the stent slid out of the CBD, with the fully released flange, into the abdominal cavity ([Fig. 4]). The catheter was then retrieved, and the open flange was re-sheathed by repositioning the stent deployment hub to the original position ([Video 1]). The delivery system was reinserted over the wire, under endoscopic view, into the CBD without any further device energizing. The distal flange was then deployed under EUS view, and the proximal flange under endoscopic view ([Fig. 5]). Cholangiography confirmed that the stent was in place. The post-procedural course was uneventful.
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Video 1 Salvage procedure following maldeployment of a lumen-apposing metal stent during endoscopic ultrasound-guided biliary drainage.
Quality:
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Stent maldeployment during EUS-guided biliary drainage is a severe adverse event. In cases where the CBD is not well dilated, with the potential for subsequent difficulty in stent deployment, the preventive placement of a through-the-stent guidewire is advisable. The described salvage procedure avoids the need for a second access to the CBD, maintaining the same route with a guidewire, and reintroducing the re-sheathed stent. This avoids the need for any emergency surgery, and also allows reuse of the same stent, thus saving on cost.
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Competing interests
None
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Reference
- 1 Krishnan K, Raza A. EUS-guided choledochoduodenostomy with use of a lumen-apposing metal stent: the freehand technique. VideoGIE 2018; 3: 2
Corresponding author
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Reference
- 1 Krishnan K, Raza A. EUS-guided choledochoduodenostomy with use of a lumen-apposing metal stent: the freehand technique. VideoGIE 2018; 3: 2
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