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Kazuichi Okazaki

department of internal medicine

90H-index
867Paper Count
3.8WCitation Count
Published Papers 311
Publication Date
Long-term impact of acute pancreatitis on patients’ quality of life: a multi-center prospective study in Japan
err2026-08-23
err0
PREAI
errMasayuki Ueno; Yoshihisa Tsuji; Takaaki Eguchi; Akihisa Fukuda; Yusuke Kurita; Yukiko Takayama; Yugo Sawai; Takashi Tamura; Mamoru Takenaka; Tetsuhiro Atono; Hidenori Tanaka; Atsushi Masamune; Satoshi Yamamoto; Keisuke Ishigami; Toshihiro Kusaka; Hiroki Kawashima; Nobuhiko Hayashi; Ayako Hata; Etsuji Ishida; Hironobu Tokumasu; Norimitsu Uza; Hiroshi Seno; Hiroki Yamaue; Sohei Satoi; Yoshifumi Takeyama; Kazuichi Okazaki; Motowo Mizuno
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Effect of 5-Aminosalicylate Dose Reduction or Withdrawal on Prognosis in Patients with Ulcerative Colitis Receiving Advanced Therapy: A Multicenter Retrospective Cohort Study
err2026-03-02
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PREAI
errYasuki Sano; Naoto Yagi; Yuka Ito; Naohiro Nakamura; Yusuke Honzawa; Eiko Saito; Norimasa Fukata; Kazuichi Okazaki; Masaaki Shimatani; Makoto Naganuma
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IgG4-related disease in the Japanese population: a whole-genome sequencing study
err2025-11-03
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PREAI
errYuxun Oswald Zhang; Takeshi Iwasaki; Takahisa Kawaguchi; Hiroki Takahashi; Shuji Kawaguchi; Atsushi Kanno; Izumi Yamaguchi; Kensuke Kubota; Hiroaki Dobashi; Masao Nagasaki; Motohisa Yamamoto; Meiko Takahashi; Masakazu Shimizu; Tsukasa Ikeura; Shoko Matsui; Masatoshi Kanda; Koki Nakamura; Kensuke Yokoyama; Atsushi Azumi; Yasufumi Masaki; Ichiro Mizushima; Yusuke Kurita; Hiroshi Seno; Tomoki Origuchi; Shujiro Yazumi; Kenji Hirano; Atsushi Masamune; Nobumasa Mizuno; Hiromi Shimada; Masafumi Moriyama; Yasuki Hori; Yuzo Kodama; Takako Saeki; Toshifumi Kin; Chiharu Kawanami; Masanori Asada; Takashi Akamizu; Akira Nakamura; Koichi Oshima; Yoshiya Tanaka; Hajime Yoshifuji; Terumi Kamisawa; Toshiyuki Kimura; Hisanori Umehara; Hideki Ishikawa; Tsutomu Chiba; Kazuichi Okazaki; Tsuneyo Mimori; Seiji Nakamura; Mitsuhiro Kawano; Fumihiko Matsuda
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'Can we cure IgG4-related diseases?'
err2025-06-16
err0
PREAI
errOkazaki, Kazuichi; Ikeura, Tsukasa; Uchida, Kazushige
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Clinical profile of IgG4-related disease in Japan based on the rare disease data registry
err2024-11-28
err0
errOAAI
errMotohisa Yamamoto; Masatoshi Kanda; Ichiro Mizushima; Atsushi Kanno; Takeji Umemura; Tsukasa Ikeura; Yuzo Kodama; Hiroaki Dobashi; Yoshiya Tanaka; Atsushi Masamune; Masafumi Moriyama; Takako Saeki; Shoko Matsui; Tomoki Origuchi; Yasufumi Masaki; Masanori Asada; Hisanori Umehara; Hiroshi Seno; Itaru Naitoh; Satoshi Yamamoto; Eisuke Iwasaki; Kensuke Kubota; Shiroh Tanoue; Takayoshi Nishino; Hiroto Tsuboi; Yasushi Matsumoto; Hiroyuki Isayama; Hiroshi Goto; Kenji Notohara; Kazushige Uchida; Ken Kawabe; Kazunori Yamada; Satomi Kasashima; Masayuki Takahira; Yasuharu Sato; Izumi Kawachi; Izumi Yamaguchi; Kazuichi Okazaki; Seiji Nakamura; Fumihiko Matsuda; Hideki Ishikawa; Mitsuhiro Kawano; Masanari Sugawara; Shunsuke Tsuge; Kensuke Yokoyama; Eriko Ikeda; Kozue Ando; Akira Nakamura; Ayaka Takaori; Takashi Ito; Koh Nakamaru; Noriko Juri; Hiromi Shimada; Shingo Nakayamada; Satoshi Kubo; Yuya Fujita; Yoshino Inoue; Takanori Sano; Tetsuya Takikawa; Yuka Miyahara; Masataka Umeda; Hajime Yoshifuji; Tomohiro Handa; Masataka Yokode
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Factors Affecting Nonfunctioning Small Pancreatic Neuroendocrine Neoplasms and Proposed New Treatment Strategies
err2024-07-01
err2
errOAAI
errHijioka, Susumu; Yamashige, Daiki; Esaki, Minoru; Honda, Goro; Higuchi, Ryota; Masui, Toshihiko; Shimizu, Yasuhiro; Ohtsuka, Masayuki; Kumamoto, Yusuke; Katanuma, Akio; Gotohda, Naoto; Akita, Hirofumi; Unno, Michiaki; Endo, Itaru; Yokoyama, Yukihiro; Yamada, Suguru; Matsumoto, Ippei; Ohtsuka, Takao; Hirano, Satoshi; Yasuda, Hiroaki; Kawai, Manabu; Aoki, Taku; Nakamura, Masafumi; Hashimoto, Daisuke; Rikiyama, Toshiki; Horiguchi, Akihiko; Fujii, Tsutomu; Mizuno, Shugo; Hanada, Keiji; Tani, Masaji; Hatori, Takashi; Ito, Tetsuhide; Okuno, Masataka; Kagawa, Shingo; Tajima, Hiroshi; Ishii, Tatsuya; Sugimoto, Motokazu; Onoe, Shunsuke; Takami, Hideki; Takada, Ryoji; Miura, Takayuki; Kurita, Yusuke; Kamei, Keiko; Mataki, Yuko; Okazaki, Kazuichi; Takeyama, Yoshifumi; Yamaue, Hiroki; Satoi, Sohei
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Reducing relapse through maintenance steroid treatment can decrease the cancer risk in patients with IgG4-sclerosing cholangitis: Based on a Japanese nationwide study
err2023-01-10
err7
PREAI
errKubota, Kensuke; Kamisawa, Terumi; Nakazawa, Takahiro; Tanaka, Atsushi; Naitoh, Itaru; Kurita, Yusuke; Takikawa, Hajime; Unno, Michiaki; Kawa, Shigeyuki; Masamune, Atsushi; Nakamura, Seiji; Okazaki, Kazuichi
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Steroid therapy has an acceptable role as the initial treatment in autoimmune pancreatitis patients with pancreatic cyst formation: Based on a Japanese nationwide study
err2022-08-30
err1
PREAI
errKubota, Kensuke; Oguchi, Takaya; Fujimori, Nao; Yamada, Kenta; Naitoh, Itaru; Okabe, Yoshinobu; Iwasaki, Eisuke; Masamune, Atsushi; Ikeura, Tsukasa; Kamisawa, Terumi; Inoue, Dai; Kumagi, Teru; Ogura, Takeshi; Kodama, Yuzo; Katanuma, Akio; Hirano, Kenji; Inui, Kazuo; Isayama, Hiroyuki; Sakagami, Junichi; Nishino, Takayoshi; Kanno, Atsushi; Kurita, Yusuke; Okazaki, Kazuichi; Nakamura, Seiji
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Needle tract seeding after endoscopic ultrasound-guided tissue acquisition of pancreatic tumors: Nationwide survey in Japan
err2022-06-29
err31
PREAI
errKitano, Masayuki; Yoshida, Makoto; Ashida, Reiko; Kita, Emiri; Katanuma, Akio; Itoi, Takao; Mikata, Rintaro; Nishikawa, Kenichiro; Matsubayashi, Hiroyuki; Takayama, Yukiko; Kato, Hironari; Takenaka, Mamoru; Ueki, Toru; Kawashima, Yohei; Nakai, Yousuke; Hashimoto, Shinichi; Shigekawa, Minoru; Nebiki, Hiroko; Tsumura, Hidetaka; Okabe, Yosinobu; Ryozawa, Shomei; Harada, Yoshiyuki; Mitoro, Akira; Sasaki, Tamito; Yasuda, Hiroaki; Miura, Natsuki; Ikemoto, Tetsuya; Ozawa, Eisuke; Shioji, Kazuhiko; Yamaguchi, Atsushi; Okuzono, Toru; Moriyama, Ichiro; Hisai, Hiroyuki; Fujita, Koichi; Goto, Takuma; Shirahata, Nakao; Iwata, Yoshinori; Okabe, Yoshihiro; Hara, Kazuo; Hashimoto, Yusuke; Kuwatani, Masaki; Isayama, Hiroyuki; Fujimori, Nao; Masamune, Atsushi; Hatamaru, Keiichi; Shimokawa, Toshio; Okazaki, Kazuichi; Takeyama, Yoshifumi; Yamaue, Hiroki
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Steroid therapy still plays a crucial role and could serve as a bridge to the next promising treatments in patients with IgG4-related sclerosing cholangitis: Results of a Japanese nationwide study
err2022-05-25
err3
PREAI
errKubota, Kensuke; Kamisawa, Terumi; Nakazawa, Takahiro; Tanaka, Atsushi; Naitoh, Itaru; Takikawa, Hajime; Unno, Michiaki; Kawa, Shigeyuki; Masamune, Atsushi; Nakamura, Seiji; Okazaki, Kazuichi
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Nationwide epidemiological survey of immunoglobulin G4-related disease with malignancy in Japan
err2022-03-20
err22
PREAI
errSumimoto, Kimi; Uchida, Kazushige; Ikeura, Tsukasa; Hirano, Kenji; Yamamoto, Motohisa; Takahashi, Hiroki; Nishino, Takayoshi; Mizushima, Ichiro; Kawano, Mitsuhiro; Kamisawa, Terumi; Saeki, Takako; Maguchi, Hiroyuki; Ushijima, Tomoyuki; Shiokawa, Masahiro; Seno, Hiroshi; Goto, Hiroshi; Nakamura, Seiji; Okazaki, Kazuichi
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Amendment of the Japanese consensus guidelines for autoimmune pancreatitis, 2020
err2022-02-22
err51
errOAAI
errOkazaki, Kazuichi; Kawa, Shigeyuki; Kamisawa, Terumi; Ikeura, Tsukasa; Itoi, Takao; Ito, Tetsuhide; Inui, Kazuo; Irisawa, Atsushi; Uchida, Kazushige; Ohara, Hirotaka; Kubota, Kensuke; Kodama, Yuzo; Shimizu, Kyoko; Tonozuka, Ryosuke; Nakazawa, Takahiro; Nishino, Takayoshi; Notohara, Kenji; Fujinaga, Yasunari; Masamune, Atsushi; Yamamoto, Hiroshi; Watanabe, Takayuki; Nishiyama, Toshimasa; Kawano, Mitsuhiro; Shiratori, Keiko; Shimosegawa, Tooru; Takeyama, Yoshifumi
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Phospho-Smad3 signaling is predictive biomarker for hepatocellular carcinoma risk assessment in primary biliary cholangitis patients
err2021-12-30
err1
errOAAI
errNakamura, Naohiro; Yoshida, Katsunori; Tsuda, Rinako; Murata, Miki; Yamaguchi, Takashi; Suwa, Kanehiko; Ichimura, Mayuko; Tsuneyama, Koichi; Matsuzaki, Koichi; Nakano, Toshiaki; Hirohara, Junko; Seki, Toshihito; Okazaki, Kazuichi; Gershwin, M. Eric; Naganuma, Makoto
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Concordance of the histological diagnosis of type 1 autoimmune pancreatitis and its distinction from pancreatic ductal adenocarcinoma with endoscopic ultrasound-guided fine needle biopsy specimens: an interobserver agreement study
err2021-11-24
err7
PREAI
errNotohara, Kenji; Kamisawa, Terumi; Furukawa, Toru; Fukushima, Noriyoshi; Uehara, Takeshi; Kasashima, Satomi; Iwasaki, Eisuke; Kanno, Atsushi; Kawashima, Atsuhiro; Kubota, Kensuke; Kuraishi, Yasuhiro; Motoya, Masayo; Naitoh, Itaru; Nishino, Takayoshi; Sakagami, Junichi; Shimizu, Kyoko; Tomono, Teruko; Aishima, Shinichi; Fukumura, Yuki; Hirabayashi, Kenichi; Kojima, Motohiro; Mitsuhashi, Tomoko; Naito, Yoshiki; Ohike, Nobuyuki; Tajiri, Takuma; Yamaguchi, Hiroshi; Fujiwara, Hideyo; Ibuki, Emi; Kobayashi, Shota; Miyaoka, Masashi; Nagase, Mamiko; Nakashima, Junko; Nakayama, Masamichi; Oda, Shinsuke; Taniyama, Daiki; Tsuyama, Sho; Watanabe, Syunsuke; Ikeura, Tsukasa; Kawa, Shigeyuki; Okazaki, Kazuichi
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Clinical characteristics of immunoglobulin IgG4-related sclerosing cholangitis: Comparison of cases with and without autoimmune pancreatitis in a large cohort
err2021-10-01
err22
PREAI
errNaitoh, Itaru; Kamisawa, Terumi; Tanaka, Atsushi; Nakazawa, Takahiro; Kubota, Kensuke; Takikawa, Hajime; Unno, Michiaki; Masamune, Atsushi; Kawa, Shigeyuki; Nakamura, Seiji; Okazaki, Kazuichi
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The clinical efficacy of azathioprine as maintenance treatment for autoimmune pancreatitis: a systematic review and meta-analysis
err2021-08-24
err15
errOAAI
errMasaki, Yoshiharu; Nakase, Hiroshi; Tsuji, Yoshihisa; Nojima, Masanori; Shimizu, Kyoko; Mizuno, Nobumasa; Ikeura, Tsukasa; Uchida, Kazushige; Ido, Akio; Kodama, Yuzo; Seno, Hiroshi; Okazaki, Kazuichi; Nakamura, Seiji; Masamune, Atsushi
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Clinical diagnostic criteria for IgG4-related sclerosing cholangitis 2020 (Revision of the clinical diagnostic criteria for IgG4-related sclerosing cholangitis 2012)
err2021-02-26
err39
errOAAI
errNakazawa, Takahiro; Kamisawa, Terumi; Okazaki, Kazuichi; Kawa, Shigeyuki; Tazuma, Susumu; Nishino, Takayoshi; Inoue, Dai; Naitoh, Itaru; Watanabe, Takayuki; Notohara, Kenji; Kubota, Kensuke; Ohara, Hirotaka; Tanaka, Atsushi; Takikawa, Hajime; Masamune, Atsushi; Unno, Michiaki
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Role of phosphorylated Smad3 signal components in intraductal papillary mucinous neoplasm of pancreas
err2020-12-01
err4
PREAI
errHori, Yuichi; Ikeura, Tsukasa; Yamaguchi, Takashi; Yoshida, Katsunori; Matsuzaki, Koichi; Ishida, Mitsuaki; Satoi, Sohei; Okazaki, Kazuichi
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Recent advances of endoscopic retrograde cholangiopancreatography using balloon assisted endoscopy for pancreaticobiliary diseases in patients with surgically altered anatomy: Therapeutic strategy and management of difficult cases
err2020-11-17
err16
errOAAI
errShimatani, Masaaki; Mitsuyama, Toshiyuki; Tokuhara, Mitsuo; Masuda, Masataka; Miyamoto, Sachi; Ito, Takashi; Nakamaru, Koh; Ikeura, Tsukasa; Takaoka, Makoto; Naganuma, Makoto; Okazaki, Kazuichi
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