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Yoichi Hiasa

Department of Gastroenterology and Metabology

59H-index
801Paper Count
1.8WCitation Count
Published Papers 335
Publication Date
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Association Between Toothbrushing Habits and Mucosal Healing in Japanese Patients with Ulcerative Colitis
errDigestive Diseases and Sciences
IF2.5
err2026-05-28
err0
errOAAI
errSen Yagi; Shinya Furukawa; Teruki Miyake; Osamu Yoshida; Kazuhiro Tange; Shogo Kitahata; Tomoyuki Ninomiya; Masakazu Hanayama; Seiyuu Suzuki; Naozumi Shibata; Hidehiro Murakami; Katsuhisa Ohashi; Hideomi Tomida; Yasunori Yamamoto; Eiji Takeshita; Yoshio Ikeda; Yoichi Hiasa
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Diagnostic Impact of Two-Dimensional Shear Wave Elastography for Liver Fibrosis: A Multicenter Retrospective Study
errHepatology Research
IF3.4
err2026-05-01
err0
errOAAI
errTakashi Nishimura; Toshifumi Tada; Yasuaki Suzuki; Kento Imajo; Katsutoshi Sugimoto; Sadanobu Ogawa; Hidenori Toyoda; Tamami Abe; Hidekatsu Kuroda; Masashi Hirooka; Asako Nogami; Satoshi Oeda; Hirokazu Takahashi; Tomoyuki Akita; Reiichiro Kondo; Takuma Nakatsuka; Ryosuke Tateishi; Yoichi Hiasa; Yuichiro Eguchi; Atsushi Nakajima; Hirohisa Yano; Shigehiro Kokubu; Junko Tanaka; Fuminori Moriyasu; Masayoshi Kage; Takashi Kumada; Hiroko Iijima
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Clinical Characteristics, Predictive Factors, and the Impact of Antithrombotic Therapy on Bleeding Events in Unresectable Hepatocellular Carcinoma Treated With Atezolizumab Plus Bevacizumab
errHepatology Research
IF3.4
err2026-04-21
err0
PREAI
errFujimasa Tada; Atsushi Hiraoka; Hideko Ohama; Toshifumi Tada; Masashi Hirooka; Kazuya Kariyama; Joji Tani; Masanori Atsukawa; Koichi Takaguchi; Ei Itobayashi; Shinya Fukunishi; Kunihiko Tsuji; Toru Ishikawa; Kazuto Tajiri; Hironori Tanaka; Hidenori Toyoda; Chikara Ogawa; Takashi Nishimura; Takeshi Hatanaka; Satoru Kakizaki; Kazuhito Kawata; Atsushi Naganuma; Hisashi Kosaka; Tomomitsu Matono; Yoshihide Ueda; Hidekatsu Kuroda; Yutaka Yata; Hiroki Nishikawa; Michitaka Imai; Tomoko Aoki; Hironori Ochi; Jumpei Okamura; Hideyuki Tamai; Shinichiro Nakamura; Yoshiko Nakamura; Osamu Yoshida; Kazuhiro Nouso; Asahiro Morishita; Norio Itokawa; Tomomi Okubo; Taeang Arai; Akemi Tsutsui; Takuya Nagano; Kazunari Tanaka; Yuichi Koshiyama; Yuki Kanayama; Hidenao Noritake; Shohei Komatsu; Takumi Fukumoto; Takanori Matsuura; Soo Ki Kim; Hirayuki Enomoto; Kosuke Matsui; Masaki Kaibori; Yoichi Hiasa; Masatoshi Kudo; Takashi Kumada; the Real-life Practice Experts for HCC (RELPEC) Study Group and hepatocellular carcinoma experts from 48 clinics in Japan (HCC 48) Group
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Impact of Intrahepatic Tumor Burden on Outcomes in Patients With Hepatocellular Carcinoma With Extrahepatic Metastases Treated With Atezolizumab Plus Bevacizumab
errHepatology Research
IF3.4
err2026-04-10
err0
PREAI
errKazunari Tanaka; Kunihiko Tsuji; Atsushi Hiraoka; Toshifumi Tada; Masashi Hirooka; Kazuya Kariyama; Joji Tani; Masanori Atsukawa; Koichi Takaguchi; Ei Itobayashi; Shinya Fukunishi; Toru Ishikawa; Kazuto Tajiri; Hironori Tanaka; Hidenori Toyoda; Chikara Ogawa; Takashi Nishimura; Takeshi Hatanaka; Satoru Kakizaki; Kazuhito Kawata; Atsushi Naganuma; Hisashi Kosaka; Tomomitsu Matono; Yoshihide Ueda; Hidekatsu Kuroda; Yutaka Yata; Hiroki Nishikawa; Michitaka Imai; Tomoko Aoki; Hironori Ochi; Jumpei Okamura; Hideyuki Tamai; Shinichiro Nakamura; Yoshiko Nakamura; Osamu Yoshida; Kazuhiro Nouso; Asahiro Morishita; Norio Itokawa; Tomomi Okubo; Taeang Arai; Akemi Tsutsui; Takuya Nagano; Fujimasa Tada; Hideko Ohama; Yuichi Koshiyama; Yuki Kanayama; Hidenao Noritake; Shohei Komatsu; Takumi Fukumoto; Takanori Matsuura; Soo Ki Kim; Hirayuki Enomoto; Kosuke Matsui; Masaki Kaibori; Yoichi Hiasa; Masatoshi Kudo; Takashi Kumada; the Real-Life Practice Experts for HCC (RELPEC) Study Group and Hepatocellular Carcinoma Experts From 48 Clinics in Japan (HCC 48) Group
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Lymphocyte–Monocyte Ratio Predicts the Survival in Patients With HCC Treated With Durvalumab Plus Tremelimumab
errLiver International
IF5.2
err2026-02-26
err0
PREAI
errTomomitsu Matono; Toshifumi Tada; Atsushi Hiraoka; Masashi Hirooka; Kazuya Kariyama; Joji Tani; Masanori Atsukawa; Koichi Takaguchi; Ei Itobayashi; Takashi Nishimura; Kunihiko Tsuji; Toru Ishikawa; Kazuto Tajiri; Hironori Tanaka; Hidenori Toyoda; Chikara Ogawa; Takeshi Hatanaka; Satoru Kakizaki; Kazuhito Kawata; Atsushi Naganuma; Hisashi Kosaka; Hidekatsu Kuroda; Yutaka Yata; Hiroki Nishikawa; Michitaka Imai; Tomoko Aoki; Hironori Ochi; Hideyuki Tamai; Shohei Komatsu; Takanori Matsuura; Yoshihide Ueda; Soo Ki Kim; Hideko Ohama; Fujimasa Tada; Shinichiro Nakamura; Yoshiko Nakamura; Osamu Yoshida; Kazuhiro Nouso; Asahiro Morishita; Norio Itokawa; Tomomi Okubo; Taeang Arai; Akemi Tsutsui; Takuya Nagano; Shinya Fukunishi; Kazunari Tanaka; Yuichi Koshiyama; Yuki Kanayama; Hidenao Noritake; Hirayuki Enomoto; Kosuke Matsui; Masaki Kaibori; Jumpei Okamura; Takumi Fukumoto; Yoichi Hiasa; Masatoshi Kudo; Takashi Kumada; the RELPEC Group and HCC 48 Group
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Effect of Disease Extent on Leucine-Rich α2-Glycoprotein as a Marker for Endoscopic Mucosal Healing in Patients With Ulcerative Colitis
errJGH Open
IF1.5
err2026-02-05
err0
errOAAI
errKitahata, Shogo; Saito, Mai; Kimura, Yuka; Nakamura, Ayaka; Usui, Toru; Kato, Kanako; Onishi, Kei; Kanemitsu-okada, Kozue; Kawamura, Tomoe; Ohama, Hideko; Kuroda, Taira; Matsuoka, Junko; Tada, Fujimasa; Miyata, Hideki; Hiraoka, Atsushi; Tsubouchi, Eiji; Ninomiya, Tomoyuki; Hiasa, Yoichi
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errSave
Guidance for Liver Rehabilitation in Chronic Liver Disease
errHepatology Research
IF3.4
err2026-01-31
err0
errOAAI
errShuji Terai; Hiroteru Kamimura; Yoichi Hiasa; Norio Akuta; Toru Ishikawa; Yuichiro Eguchi; Hironao Okubo; Takumi Kawaguchi; Miwa Kawanaka; Tatsuo Kanda; Masaaki Korenaga; Ryotaro Sakamori; Masahito Shimizu; Yoshio Sumida; Ryosuke Tateishi; Atsushi Tanaka; Naoki Tanaka; Yasuo Tanaka; Yuki Tahata; Masato Nakai; Tadashi Namisaki; Takashi Nishimura; Atsushi Hiraoka; Takeshi Matsui; Nami Mori; Akio Moriya; Tetsuo Takehara
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Prognostic Stratification of Initial Treatments for Hepatocellular Carcinoma Using a Modified Borderline Resectable Classification
errCANCER MEDICINE
IF3.1
err2025-12-17
err0
errOAAI
errTada, Fujimasa; Hiraoka, Atsushi; Ohama, Hideko; Saito, Mai; Kimura, Yuka; Nakamura, Ayaka; Usui, Toru; Kato, Kanako; Onishi, Kei; Kitahata, Shogo; Kanemitsu-okada, Kozue; Kawamura, Tomoe; Kuroda, Taira; Ishimura, Naho; Hanaoka, Jun; Watanabe, Jota; Ohtani, Hiromi; Miyake, Teruki; Yoshida, Osamu; Hirooka, Masashi; Miyata, Hideki; Tsubouchi, Eiji; Abe, Masanori; Ninomiya, Tomoyuki; Hiasa, Yoichi
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Endoscopic resection of gastric cancer involving pylorus and duodenum using novel anchor ring-shaped thread counter traction
errENDOSCOPY
IF12.8
err2025-12-01
err0
errOAAI
errMori, Hirohito; Yamamoto, Yasunori; Niida, Kazuki; Tange, Masaaki; Hiasa, Yoichi
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Endoscopic closure after endoscopic submucosal dissection using novel hooking attachment with a knotting chain shaped thread system
errENDOSCOPY
IF12.8
err2025-12-01
err0
errOAAI
errMori, Hirohito; Yamamoto, Yasunori; Niida, Kazuki; Tange, Masaaki; Hiasa, Yoichi
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Novel combination closure of an artificial ulcer after gastric endoscopic submucosal dissection using a double-arm-bar suturing system and an anchor prong clip
errENDOSCOPY
IF12.8
err2025-12-01
err1
errOAAI
errYamamoto, Yasunori; Mori, Hirohito; Okada, Masaya; Miyake, Teruki; Takeshita, Eiji; Ikeda, Yoshiou; Hiasa, Yoichi
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errSave
Factors associated with ulcerative colitis with non-anemic iron deficiency
errBMC Gastroenterology
IF2.6
err2025-11-18
err0
errOAAI
errShogo Kitahata; Mai Fukumoto; Kana Matsuoka; Takuya Matsuda; Taisei Murakami; Kei Onishi; Hirofumi Izumoto; Kozue Kanemitsu; Tomoe Kawamura; Taira Kuroda; Junko Matsuoka; Fujimasa Tada; Hideki Miyata; Atsushi Hiraoka; Kazuhiro Tange; Yasunori Yamamoto; Eiji Takeshita; Yoshiou Ikeda; Shinya Furukawa; Eiji Tsubouchi; Tomoyuki Ninomiya; Yoichi Hiasa
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Effect of remnant cholesterol on the onset of diabetes mellitus
errJournal of Diabetes Investigation
IF3
err2025-10-27
err0
errOAAI
errTeruki Miyake; Shinya Furukawa; Ayumi Kanamoto; Osamu Yoshida; Yoshimasa Murakami; Masumi Miyazaki; Akihito Shiomi; Sho Ishikawa; Yuki Numata; Hironobu Nakaguchi; Yoshiko Nakamura; Mitsuhito Koizumi; Takao Watanabe; Yasunori Yamamoto; Hirohito Mori; Eiji Takeshita; Teru Kumagi; Yoshio Ikeda; Masanori Abe; Bunzo Matsuura; Takeru Iwata; Yoichi Hiasa
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Employment Status of Patients With Liver Disease: A Nationwide Questionnaire Survey in Japan
errHepatology Research
IF3.4
err2025-10-04
err0
errOAAI
errYoshio Tokumoto; Yoichi Hiasa; Yoshihito Uchida; Takashi Oono; Atsushi Yukimoto; Takao Watanabe; Ryo Sasaki; Sachiko Tatsuki; Hironori Tanaka; Takako Inoue; Mika Horino; Akira Hirose; Tadashi Ikegami; Jun Inoue; Hiroshi Isoda; Hirokazu Takahashi; Yoshihisa Arao; Isao Hidaka; Hiroki Tojima; Satoru Kakizaki; Tetsuro Shimakami; Masayuki Tatemichi; Tatehiro Kagawa; Koji Ogawa; Masatsugu Ohara; Ritsuzo Kozuka; Masaru Enomoto; Mizuki Endo; Yuichiro Eguchi; Kenji Nagata; Masaaki Korenaga
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GPAM upregulation enhances hepatic fat deposition and reduces visceral adipose tissue in response to trans-fatty acids
errJournal of Gastroenterology
IF5.5
err2025-10-04
err0
PREAI
errTeruki Miyake; Osamu Yoshida; Shinya Furukawa; Yusuke Sato; Yoshimasa Murakami; Ayumi Kanamoto; Masumi Miyazaki; Akihito Shiomi; Hironobu Nakaguchi; Mitsuhito Koizumi; Takao Watanabe; Yoshio Tokumoto; Masashi Hirooka; Masanori Abe; Bunzo Matsuura; Yoichi Hiasa
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An unusual pancreatic tumor with prominent calcification in a middle-aged man: what is the diagnosis?
errCLINICAL ENDOSCOPY
IF0
err2025-10-01
err0
PREAI
errIshikawa, Sho; Koizumi, Mitsuhito; Kokubu, Masahito; Numata, Yuki; Kumagi, Teru; Hiasa, Yoichi
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Development of a Neural Network to Detect Hepatic Steatosis in Metabolic Dysfunction-Associated Steatotic Liver Disease
errGASTRO HEP ADVANCES
IF0
err2025-10-01
err1
errOAAI
errHirooka, Masashi; Miyake, Teruki; Yano, Ryo; Nakamura, Yoshiko; Okazaki, Yuki; Shimamoto, Toyoki; Yamamoto, Yasunori; Watanabe, Takao; Yoshida, Osamu; Hirooka, Kana; Tokumoto, Yoshio; Abe, Masanori; Iwata, Takeru; Hiasa, Yoichi
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Clinical Utility of a Prognostic Scoring System Based on LDH and CRP in HCC Patients Receiving Atezolizumab Plus Bevacizumab
errLIVER INTERNATIONAL
IF5.2
err2025-09-19
err0
PREAI
errTanaka, Kazunari; Tsuji, Kunihiko; Hiraoka, Atsushi; Tada, Toshifumi; Hirooka, Masashi; Kariyama, Kazuya; Tani, Joji; Atsukawa, Masanori; Takaguchi, Koichi; Itobayashi, Ei; Fukunishi, Shinya; Ishikawa, Toru; Tajiri, Kazuto; Ohama, Hideko; Toyoda, Hidenori; Ogawa, Chikara; Nishimura, Takashi; Hatanaka, Takeshi; Kakizaki, Satoru; Kawata, Kazuhito; Naganuma, Atsushi; Kosaka, Hisashi; Matono, Tomomitsu; Kuroda, Hidekatsu; Yata, Yutaka; Nishikawa, Hiroki; Imai, Michitaka; Aoki, Tomoko; Ochi, Hironori; Kanayama, Yuki; Tada, Fujimasa; Nakamura, Shinichiro; Nouso, Kazuhiro; Morishita, Asahiro; Itokawa, Norio; Okubo, Tomomi; Arai, Taeang; Tsutsui, Akemi; Tanaka, Hironori; Noritake, Hidenao; Kaibori, Masaki; Hiasa, Yoichi; Kudo, Masatoshi; Kumada, Takashi
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Serum Growth Differentiation Factor 15 Can Be a Novel Biomarker to Predict the Prognosis of Patients With Hepatitis C Virus Cirrhosis After Virus Elimination
errHepatology Research
IF3.4
err2025-09-18
err0
errOAAI
errYuta Myojin; Hayato Hikita; Yuki Tahata; Kenji Fukumoto; Seiya Kato; Yoichi Sasaki; Shusuke Kumazaki; Atsunori Tsuchiya; Masaru Enomoto; Daiki Miki; Hiroshi Yatsuhashi; Hidekatsu Kuroda; Yoshihito Uchida; Hitoshi Yoshiji; Taro Yamashita; Seiichi Mawatari; Nobuharu Tamaki; Hisamitsu Miyaaki; Yasuhiro Asahina; Goki Suda; Kentaro Matsuura; Yasunari Nakamoto; Yoichi Hiasa; Taro Takami; Kumiko Shirai; Kazuki Maesaka; Kazuhiro Murai; Yuki Makino; Yoshinobu Saito; Takahiro Kodama; Tomohide Tatsumi; Tetsuo Takehara
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Efficacy and Safety of Durvalumab Plus Tremelimumab in Hepatocellular Carcinoma Patients With Portal Vein Thrombosis and High Tumor Burden: A Multicenter Retrospective Analysis
errHepatology Research
IF3.4
err2025-09-06
err0
PREAI
errHatanaka, Takeshi; Yata, Yutaka; Hiraoka, Atsushi; Tada, Toshifumi; Hirooka, Masashi; Kariyama, Kazuya; Tani, Joji; Atsukawa, Masanori; Takaguchi, Koichi; Itobayashi, Ei; Kakizaki, Satoru; Fukunishi, Shinya; Tsuji, Kunihiko; Ishikawa, Toru; Tajiri, Kazuto; Toyoda, Hidenori; Koshiyama, Yuichi; Ogawa, Chikara; Nishikawa, Hiroki; Nishimura, Takashi; Kawata, Kazuhito; Kosaka, Hisashi; Matsui, Kosuke; Naganuma, Atsushi; Tanaka, Hironori; Ohama, Hideko; Kuroda, Hidekatsu; Matono, Tomomitsu; Aoki, Tomoko; Ochi, Hironori; Imai, Michitaka; Nakamura, Shinichiro; Komatsu, Shohei; Tamai, Hideyuki; Okamura, Jumpei; Kanayama, Yuki; Tanaka, Kazunari; Tada, Fujimasa; Yoshida, Osamu; Nouso, Kazuhiro; Morishita, Asahiro; Tsutsui, Akemi; Nagano, Takuya; Itokawa, Norio; Okubo, Tomomi; Arai, Taeang; Matsuura, Takanori; Noritake, Hidenao; Enomoto, Hirayuki; Kaibori, Masaki; Fukumoto, Takumi; Hiasa, Yoichi; Kudo, Masatoshi; Kumada, Takashi
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Research Directions

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Co-authors
Cooperation Journals
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Masatoshi Kudo
H-index: 143 · Papers: 2.8K
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H-index: 129 · Papers: 2.6K
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Marco Prinz
H-index: 127 · Papers: 711
G
Giovanni Targher
H-index: 124 · Papers: 836
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Elisabetta Bugianesi
H-index: 113 · Papers: 672
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