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CC BY-NC-ND 4.0 · Endosc Int Open 2022; 10(09): E1291-E1296
DOI: 10.1055/a-1899-4124
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Novel J-tip guidewire for reintervention after stent-by-stent placement in patients with malignant hilar biliary obstruction

Tadahisa Inoue 
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Mayu Ibusuki
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Rena Kitano
,
Kazumasa Sakamoto
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Satoshi Kimoto
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Yuji Kobayashi
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Yoshio Sumida
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Yukiomi Nakade
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Kiyoaki Ito
1   Department of Gastroenterology, Aichi Medical University, Aichi
,
Masashi Yoneda
1   Department of Gastroenterology, Aichi Medical University, Aichi
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Reintervention (RI) after bilateral metal stent placement for malignant hilar biliary obstruction is a highly technically challenging procedure. This study aimed to examine the use of a novel J-tip guidewire (GW) for RI after stent-by-stent (SBS) placement. The study outcomes included technical success, procedure time, and procedure-related adverse events (AEs) associated with RI after SBS placement. These parameters were compared between 20 patients who underwent RI using the J-tip GW (J-GW group) and a control cohort of 20 patients who underwent RI using a conventional GW (C-GW group). The technical success rate for GW placement without any advanced technique was significantly higher in the J-GW group than in the C-GW group. The median procedure time was significantly shorter in the J-GW group. No significant differences in the procedure-related AE rate were observed between the groups. The novel J-tip GW yielded higher technical success rates with appropriate GW placement and shorter procedure time for RI after SBS placement, simplifying and streamlining the RI procedure.

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Publication History

Received: 18 March 2022

Accepted after revision: 12 July 2022

Accepted Manuscript online:
13 July 2022

Article published online:
14 September 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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