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Works (16)

Incidence of Cholecystitis After Endoscopic Biliary Drainage Using a Low Axial Force Covered Self‐Expandable Metallic Stent in Patients With Malignant Distal Biliary Obstruction: A Multicenter Prospective Study

Journal of Gastroenterology and Hepatology
2025-02 | Journal article
DOI: 10.1111/jgh.16824
Contributors: Naoki Minato; Kosuke Okuwaki; Masafumi Watanabe; Jun Woo; Takaaki Matsumoto; Masayoshi Tadehara; Toru Kaneko; Junro Ishizaki; Tomohisa Iwai; Hiroshi Imaizumi et al.
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S-1/irinotecan/oxaliplatin chemotherapy achieved a pathological complete remission in advanced pancreatic carcinoma

Clinical Journal of Gastroenterology
2025-02 | Journal article
DOI: 10.1007/s12328-024-02055-1
Contributors: Ru Chen; Tomohisa Iwai; Hiroshi Tajima; Kai Adachi; Kosuke Okuwaki; Masafumi Watanabe; Taro Hanaoka; Akihiro Tamaki; Yusuke Kumamoto; Chika Kusano
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Safety and Efficacy of a 6‐Month Placement of a Fully Covered Self‐Expanding Metallic Stent for Refractory Benign Biliary Stricture: A Multicenter Prospective Study

JGH Open
2025-01 | Journal article
DOI: 10.1002/jgh3.70103
Contributors: Tomohisa Iwai; Mitsuhiro Kida; Kazuya Sugimori; Hiroaki Shigoka; Takaaki Matsumoto; Masashi Ijima; Haruo Miwa; Kosuke Okuwaki; Masafumi Watanabe; Kai Adachi et al.
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Use of the intrascope channel stent release technique using a novel pigtail-type plastic stent

Endoscopy
2024-12 | Journal article
DOI: 10.1055/a-2445-8148
Contributors: Masafumi Watanabe; Kosuke Okuwaki; Tomohisa Iwai; Kai Adachi; Akihiro Tamaki; Taro Hanaoka; Chika Kusano
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Effectiveness of endoscopic ultrasound-guided tissue acquisition with stereomicroscopic on-site evaluation for preoperative diagnosis of resectable or borderline resectable pancreatic cancer: a prospective study

Clinical Endoscopy
2024-11-30 | Journal article
DOI: 10.5946/ce.2023.277
Contributors: Junro Ishizaki; Kosuke Okuwaki; Masafumi Watanabe; Hiroshi Imaizumi; Tomohisa Iwai; Rikiya Hasegawa; Takahiro Kurosu; Masayoshi Tadehara; Takaaki Matsumoto; Kai Adachi et al.
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Efficacy of endoscopic ultrasound‐guided tissue acquisition using stereo‐microscopic on‐site evaluation for possible comprehensive genome profile in patients with advanced pancreatic cancer

Journal of Gastroenterology and Hepatology
2024-04 | Journal article
DOI: 10.1111/jgh.16478
Contributors: Kosuke Okuwaki; Masafumi Watanabe; Tsutomu Yoshida; Akihiro Tamaki; Tomohisa Iwai; Kai Adachi; Junro Ishizaki; Taro Hanaoka; Hiroshi Imaizumi; Mitsuhiro Kida et al.
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Stereomicroscopic on-site evaluation in endoscopic ultrasound-guided tissue acquisition of upper gastrointestinal subepithelial lesions

Clinical Endoscopy
2024-01-30 | Journal article
DOI: 10.5946/ce.2022.288
Contributors: Seigo Nakatani; Kosuke Okuwaki; Masafumi Watanabe; Hiroshi Imaizumi; Tomohisa Iwai; Takaaki Matsumoto; Rikiya Hasegawa; Hironori Masutani; Takahiro Kurosu; Akihiro Tamaki et al.
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Case of successful hemorrhagic anastomotic varices after pancreaticoduodenectomy

Digestive Endoscopy
2022-07 | Journal article
DOI: 10.1111/den.14336
Contributors: Kana Imawari; Tomohisa Iwai; Chika Kusano
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Endoscopic re‐intervention after stent‐in‐stent versus side‐by‐side bilateral self‐expandable metallic stent deployment

Journal of Gastroenterology and Hepatology
2022-06 | Journal article
DOI: 10.1111/jgh.15822
Contributors: Tomohisa Iwai; Mitsuhiro Kida; Kosuke Okuwaki; Hiroshi Yamauchi; Toru Kaneko; Rikiya Hasegawa; Masafumi Watanabe; Takahiro Kurosu; Hiroshi Imaizumi; Wasaburo Koizumi
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New image‐processing technology for endoscopic ultrasound‐guided fine‐needle aspiration biopsy specimen evaluation in patients with pancreatic cancer

DEN Open
2022-04 | Journal article
DOI: 10.1002/deo2.21
Contributors: Kosuke Okuwaki; Hiroshi Imaizumi; Mitsuhiro Kida; Hironori Masutani; Masafumi Watanabe; Kai Adachi; Masayoshi Tadehara; Akihiro Tamaki; Tomohisa Iwai; Hiroshi Yamauchi et al.
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Multicenter prospective study of the efficacy of stereomicroscopic on-site evaluation in endoscopic ultrasound-guided tissue acquisition in patients with pancreatic cancer

Pancreatology
2022-03 | Journal article
DOI: 10.1016/j.pan.2021.12.011
Contributors: Masafumi Watanabe; Kosuke Okuwaki; Mitsuhiro Kida; Hiroshi Imaizumi; Takaaki Matsumoto; Tomohisa Iwai; Rikiya Hasegawa; Hironori Masutani; Takahiro Kurosu; Naoki Minato et al.
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A case of pancreatic neuroendocrine carcinoma with a favorable clinical response to pembrolizumab

Clinical Journal of Gastroenterology
2021-12-08 | Journal article
DOI: 10.1007/s12328-021-01505-4
Contributors: Taro Kogami; Tomohisa Iwai; Mitsuhiro Kida; Kosuke Okuwaki; Rikiya Hasegawa; Takahiro Kurosu; Masafumi Watanabe; Masahiro Matsushita; Kana Imawari; Kai Adachi et al.
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Histopathological comparison of aspiration and biopsy needles in endoscopic ultrasound‐guided tissue acquisition in patients with subepithelial lesions

Diagnostic Cytopathology
2021-07 | Journal article
DOI: 10.1002/dc.24757
Contributors: Masafumi Watanabe; Kosuke Okuwaki; Mitsuhiro Kida; Masayoshi Tadehara; Kai Adachi; Hironori Masutani; Akihiro Tamaki; Hiroshi Imaizumi; Tomohisa Iwai; Hiroshi Yamauchi et al.
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Cholecystitis after Placement of Covered Self-Expandable Metallic Stents in Patients with Distal Malignant Biliary Obstructions

Clinical Endoscopy
2021-07-30 | Journal article
DOI: 10.5946/ce.2020.136
Contributors: Masafumi Watanabe; Kosuke Okuwaki; Jun Woo; Mitsuhiro Kida; Hiroshi Imaizumi; Tomohisa Iwai; Hiroshi Yamauchi; Toru Kaneko; Rikiya Hasegawa; Takahiro Kurosu et al.
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Long-lasting patent fistula after EUS-guided choledochoduodenostomy in a patient with refractory benign biliary stricture

VideoGIE
2018-06 | Journal article
DOI: 10.1016/j.vgie.2018.03.011
Contributors: Tomohisa Iwai; Mitsuhiro Kida; Hiroshi Yamauchi; Toru Kaneko; Kosuke Okuwaki; Hiroshi Imaizumi; Wasaburo Koizumi
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Randomized crossover trial comparing EUS‐guided fine‐needle aspiration with EUS‐guided fine‐needle biopsy for gastric subepithelial tumors

Diagnostic Cytopathology
2018-03 | Journal article
DOI: 10.1002/dc.23872
Contributors: Tomohisa Iwai; Mitsuhiro Kida; Hiroshi Imaizumi; Shiro Miyazawa; Kosuke Okuwaki; Hiroshi Yamauchi; Toru Kaneko; Rikiya Hasegawa; Eiji Miyata; Wasaburo Koizumi
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Peer review (1 review for 1 publication/grant)

Review activity for Clinical journal of gastroenterology. (1)
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