Clinical Endoscopy

Tadahisa Inoue

2 Articles

Optimal endoscopic drainage strategy for unresectable malignant hilar biliary obstruction: Itaru Naitoh, Tadahisa Inoue; Clin Endosc 2023;56(2):135-142. Published online January 5, 2023; DOI: https://doi.org/10.5946/ce.2022.150

Endoscopic biliary drainage strategies for managing unresectable malignant hilar biliary obstruction differ in terms of stent type, drainage area, and deployment method. However, the optimal endoscopic drainage strategy remains unclear. Uncovered self-expandable metal stents (SEMS) are the preferred type because of their higher functional success rate, longer time to recurrent biliary obstruction (RBO), and fewer cases of reintervention than plastic stents (PS). Other PS subtypes and covered SEMS, which feature a longer time to RBO than PS, can be removed during reintervention for RBO. Bilateral SEMS placement is associated with a longer time to RBO and a longer survival time than unilateral SEMS placement. Unilateral drainage is acceptable if a drainage volume of greater than 50% of the total liver volume can be achieved. In terms of deployment method, no differences were observed in clinical outcomes between side-by-side (SBS) and stent-in-stent deployment. Simultaneous SBS boasts a shorter procedure time and higher technical success rate than sequential SBS. This review of previous studies aimed to clarify the optimal endoscopic biliary drainage strategy for unresectable malignant hilar biliary obstruction.

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Comparison of unilateral and bilateral intraductal plastic stent placement for unresectable malignant hilar biliary obstruction: A propensity score‐matched cohort analysis
Mitsuru Okuno, Keisuke Iwata, Tsuyoshi Mukai, Yuhei Iwasa, Shinya Uemura, Kensaku Yoshida, Akinori Maruta, Takuji Iwashita, Ichiro Yasuda, Masahito Shimizu
Journal of Hepato-Biliary-Pancreatic Sciences.2024; 31(4): 284. CrossRef
Preoperative endoscopic biliary drainage by metal versus plastic stents for resectable perihilar cholangiocarcinoma
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Gastrointestinal Endoscopy.2024; 99(4): 566. CrossRef
TOKYO criteria 2024 for the assessment of clinical outcomes of endoscopic biliary drainage
Hiroyuki Isayama, Tsuyoshi Hamada, Toshio Fujisawa, Mitsuharu Fukasawa, Kazuo Hara, Atsushi Irisawa, Shigeto Ishii, Ken Ito, Takao Itoi, Yoshihide Kanno, Akio Katanuma, Hironari Kato, Hiroshi Kawakami, Hirofumi Kawamoto, Masayuki Kitano, Hirofumi Kogure,
Digestive Endoscopy.2024; 36(11): 1195. CrossRef
Trisectoral Metal Stenting Using Combined Stent-by-Stent and Stent-in-Stent Method for Malignant Hilar Biliary Obstruction: A Prospective Pilot Study
Tadahisa Inoue, Rena Kitano, Mayu Ibusuki, Tomoya Kitada, Kazumasa Sakamoto, Satoshi Kimoto, Jun Arai, Kiyoaki Ito
Digestive Diseases and Sciences.2024; 69(11): 4283. CrossRef
Suprapapillary trisectoral deployment of slim fully covered metal stents with ultra-stiff high-sliding guidewires for malignant hilar biliary obstruction
Tadahisa Inoue, Rena Kitano, Tomoya Kitada, Kazumasa Sakamoto, Satoshi Kimoto, Jun Arai, Kiyoaki Ito
Endoscopy.2024; 56(S 01): E996. CrossRef
Efficacy and safety of covered self-expandable metal stents for malignant hilar biliary obstruction: systematic review and meta-analysis
Kwang Hyun Chung, Kyong Joo Lee, Abel A. Joseph, Robert J. Huang, Andrew Li, Joo Ha Hwang, Seung Bae Yoon
Gastrointestinal Endoscopy.2024;[Epub] CrossRef
Evaluating safety and efficacy of plastic versus metal stenting in malignant hilar biliary obstruction: a systematic review and meta-analysis of randomized controlled trials
Xinjie Luo, Zhicheng Huang, Kamran Ali, Khizar Hayat
Postgraduate Medical Journal.2024;[Epub] CrossRef
Research progress on biliary stents
Qi Zhang, Haipo Cui, Yan Zhang, Hexuan Jiang
Progress in Medical Devices.2023;[Epub] CrossRef

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Practical Experiences of Unsuccessful Hemostasis with Covered Self-Expandable Metal Stent Placement for Post-Endoscopic Sphincterotomy Bleeding: Michihiro Yoshida, Tadahisa Inoue, Itaru Naitoh, Kazuki Hayashi, Yasuki Hori, Makoto Natsume, Naoki Atsuta, Hiromi Kataoka; Clin Endosc 2022;55(1):150-155. Published online November 19, 2020; DOI: https://doi.org/10.5946/ce.2020.217

Abstract PDF PubReader ePub

We reviewed 7 patients with unsuccessful endoscopic hemostasis using covered self-expandable metal stent (CSEMS) placement for post-endoscopic sphincterotomy (ES) bleeding. ES with a medium incision was performed in 6 and with a large incision in 1 patient. All but 1 of them (86%) showed delayed bleeding, warranting second endoscopic therapies followed by CSEMS placement 1–5 days after the initial ES. Subsequent CSEMS placement did not achieve complete hemostasis in any of the patients. Lateral-side incision lines (3 or 9 o’clock) had more frequent bleeding points (71%) than oral-side incision lines (11–12 o’clock; 29%). Additional endoscopic hemostatic procedures with hemostatic forceps, hypertonic saline epinephrine, or hemoclip achieved excellent hemostasis, resulting in complete hemostasis in all patients. These experiences provide an alert: CSEMS placement is not an ultimate treatment for post-ES bleeding, despite its effectiveness. The lateral-side of the incision line, as well as the oral-most side, should be carefully examined for bleeding points, even after the CSEMS placement.

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Application of a New Hemostatic Clip to Prevent Delayed Bleeding After Endoscopic Sphincterotomy
Jinpei Dong, Qiushi Feng, Guigen Teng, Haixia Niu, Dapeng Bian
Journal of Clinical Gastroenterology.2024; 58(6): 614. CrossRef
Effectiveness and safety of a new clip for delivery using a duodenoscope for bleeding after endoscopic sphincterotomy
Atsushi Yamaguchi, Hiroki Kamada, Shigeaki Semba, Naohiro Kato, Yasuhiro Okuda, Yuji Teraoka, Takeshi Mizumoto, Yuzuru Tamaru, Tsuyoshi Hatakeyama, Hirotaka Kouno, Shigeto Yoshida
Endoscopy International Open.2024; 12(10): E1190. CrossRef
Multiple drugs

Reactions Weekly.2022; 1907(1): 314. CrossRef

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