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CC BY 4.0 · Endoscopy 2025; 57(S 01): E481-E483
DOI: 10.1055/a-2598-5509
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A novel reshapable catheter facilitates selective biliary and pancreatic duct cannulation following endoscopic submucosal dissection including papilla

Haruo Miwa 
1   Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Kingo Hirasawa
2   Division of Endoscopy, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Kazuki Endo 
1   Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Ritsuko Oishi
1   Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Yuichi Suzuki 
1   Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Hiromi Tsuchiya
1   Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan (Ringgold ID: RIN26437)
,
Shin Maeda
3   Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Endoscopic submucosal dissection including the papilla (ESDIP) carries the risk of delayed bleeding and perforation [1] [2]; therefore, endoscopic nasobiliary and nasopancreatic duct drainage (ENBPD) is recommended to prevent adverse events [3] [4]. However, after ESDIP, the maneuverability of the duodenoscope is restricted, making it difficult to align with the axes of the bile duct and pancreatic ducts for cannulation. A novel reshapable catheter (VEGA; Japan Lifeline Co., Ltd., Tokyo, Japan) features a coiling shaft that allows for easy manual adjustment to an appropriate angle ([Fig. 1]).

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Fig. 1 The novel reshapable catheter (VEGA; Japan Lifeline Co., Ltd., Tokyo Japan). a The catheter features a coiling shaft. b The tip of the catheter allows for easy manual adjustment to an appropriate angle.

A 41-year-old woman was referred to our hospital because of a laterally spreading tumor involving the papilla. ENBPD was planned to prevent adverse events following ESDIP ([Fig. 2], [Video 1]). A duodenoscope (TJF-290V; Olympus Medical Systems, Tokyo, Japan) was inserted into the second part of the duodenum ([Fig. 3]). The duodenal lumen was narrowed due to clipping performed during ESDIP. The orifices of the bile and pancreatic ducts were identified beyond the clips. The axis of the pancreatic duct ran downward. First, the novel reshapable catheter was used in a straight shape. Pancreatography was successfully performed before guidewire insertion. The bile duct axis appeared to run upward. The catheter was manually reshaped to adjust to the direction of the bile duct. The tip of the catheter was gently positioned at the orifice of the bile duct and the guidewire was successfully inserted. Cholangiography confirmed successful bile duct cannulation ([Fig. 4]). Subsequently, nasopancreatic duct and nasobiliary tubes were placed, and the duodenoscope was carefully withdrawn. The patient experienced no complications, and she was discharged on Day 8.

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Fig. 2 Endoscopic images. a A laterally spreading tumor involving the papilla. b After endoscopic submucosal dissection, the duodenal lumen was narrowed due to clipping.
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Fig. 3 After endoscopic submucosal dissection including the papilla. a The orifices of the bile and pancreatic ducts were identified beyond the clips (arrowhead). b The maneuverability of the duodenoscope was restricted.
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Fig. 4 Selective biliary and pancreatic duct cannulation. a The axis of the pancreatic duct ran downward. The catheter was used in a straight shape. b Pancreatic duct cannulation was successfully performed. c The bile duct axis appeared to run upward. The catheter was manually reshaped to adjust to the direction of the bile duct. d Cholangiography confirmed successful bile duct cannulation.
The novel reshapable catheter was useful for biliary and pancreatic duct cannulation after endoscopic submucosal dissection including the papilla.Video 1

To the best of our knowledge, this is the first report describing the use of a novel reshapable catheter for selective biliary and pancreatic duct cannulations. This catheter facilitates cannulation in challenging cases where duodenoscope maneuverability is restricted.

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Publication History

Article published online:
26 May 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

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