Clinical Endoscopy

An unusual pancreatic tumor with prominent calcification in a middle-aged man: what is the diagnosis?: Sho Ishikawa, Mitsuhito Koizumi, Masahito Kokubu, Yuki Numata, Teru Kumagi, Yoichi Hiasa; Clin Endosc 2026;59(1):156-157. Published online October 1, 2025; DOI: https://doi.org/10.5946/ce.2025.014

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Antireflux mucosectomy for refractory gastroesophageal reflux disease following peroral endoscopic myotomy: Hideomi Tomida, Kazuhiro Tange, Yoshiou Ikeda, Yoichi Hiasa; Clin Endosc 2025;58(5):766-767. Published online March 13, 2025; DOI: https://doi.org/10.5946/ce.2024.344

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Safety and efficacy of novel oblique-viewing scope for B2-endoscopic ultrasound-guided hepaticogastrostomy: Sho Ishikawa, Kazuo Hara, Nozomi Okuno, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Takafumi Yanaidani, Masanori Yamada, Tsukasa Yasuda, Toshitaka Fukui, Teru Kumagi, Yoichi Hiasa; Clin Endosc 2024;57(4):527-533. Published online March 29, 2024; DOI: https://doi.org/10.5946/ce.2023.129

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Background
/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) performed at the intrahepatic bile duct segment 3 (B3) is widely used for biliary drainage. Although performing post-puncture procedures is easier in the intrahepatic bile duct segment 2 (B2) when using a conventional oblique-viewing (OV) EUS scope, this method may cause transesophageal puncture and severe adverse events. We evaluated the safety and efficacy of B2 puncture using a novel OV-EUS scope.
Methods
In this single-center retrospective study, we prospectively enrolled and collected data from 45 patients who consecutively underwent EUS-HGS procedures with a novel OV-EUS scope between September 2021 and December 2022 at our cancer center.
Results
The technical success rates of B2-EUS-HGS and EUS-HGS were 93.3% (42/45) and 97.8% (44/45), respectively. The early adverse event rate was 8.9% (4/45) with no cases of scope changes or transesophageal punctures. The median procedure time was 13 minutes (range, 5–30).
Conclusions
B2-EUS-HGS can be performed safely with the novel EG-740UT (Fujifilm) OV-scope without transesophageal puncture and with a high success rate. B2-EUS-HGS using this novel OV scope may be the preferred strategy for EUS-HGS.

Citations

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Enhanced Endoscope is Associated With Success Rates in B2‐ Endoscopic Ultrasound‐Guided Hepaticogastrostomy
Yoshitaro Yamamoto, Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara, Hiroki Koda, Minako Urata, Takashi Kondo, Keigo Oshiro, Tomoki Ogata, Ren Kuwabara
DEN Open.2026;[Epub] CrossRef
Clinical evaluation of a novel fluoroscopic mode for improving visibility during interventional endoscopic ultrasound (with video)
Naoto Aoyama, Takeshi Ogura, Saori Ueno, Atsushi Okuda, Nobu Nishioka, Jun Sakamoto, Yuki Uba, Mitsuki Tomita, Nobuhiro Hattori, Junichi Nakamura, Kimi Bessho, Takafumi Kanadani, Hiroki Nishikawa
Therapeutic Advances in Gastroenterology.2025;[Epub] CrossRef
Scope withdrawal technique to prevent transesophageal puncture during endoscopic ultrasound-guided hepaticogastrostomy
Kazuki Endo, Haruo Miwa, Ritsuko Oishi, Hiromi Tsuchiya, Yuichi Suzuki, Kazushi Numata, Shin Maeda
Endoscopy.2025; 57(S 01): E705. CrossRef
Primary endoscopic ultrasound-guided hepaticogastrostomy for biliary drainage prior to pancreatoduodenectomy: a retrospective study in Japan
Nozomi Okuno, Kazuo Hara, Seiji Natsume, Masataka Okuno, Shin Haba, Tomonari Asano, Takamichi Kuwahara, Hiroki Koda, Yasuhiro Shimizu
Clinical Endoscopy.2025; 58(4): 604. CrossRef
Dedicated Echoendoscope for Interventional Endoscopic Ultrasound: Comparison with a Conventional Echoendoscope
Toshio Fujisawa, Shigeto Ishii, Yousuke Nakai, Hirofumi Kogure, Ko Tomishima, Yusuke Takasaki, Koichi Ito, Sho Takahashi, Akinori Suzuki, Hiroyuki Isayama
Journal of Clinical Medicine.2024; 13(10): 2840. CrossRef

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