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Hiroyuki Okada

Soka Municipal Hospital

55H-index
923Paper Count
1.3WCitation Count
Published Papers 304
Publication Date
Seasonal Variations of Vogt-Koyanagi-Harada Disease in Japan: A Study on Long-Term Trends and the Influence of COVID-19
err2025-07-31
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errYuki Mizuki; Akira Meguro; Koji Yamamoto; Tatsukata Kawagoe; Nobuyuki Horita; Hiroyuki Okada; Norihiro Yamada; Takuto Sakono; Mami Ishihara; Shigeaki Ohno; Nobuhisa Mizuki
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Predictors of left atrial thrombi for subsequent thromboembolisms: Risk factors derived from echocardiography
err2025-03-07
err0
PREAI
errTomoki Horie; Shinsuke Miyazaki; Yasutoshi Nagata; Ryoichi Miyazaki; Hirofumi Kujiraoka; Satoshi Hara; Tasuku Yamamoto; Hirofumi Arai; Toshiki Michishita; Ryo Tateishi; Shigeo Shimizu; Shu Yamashita; Moe Mukai; Shinsuke Iwai; Hiroyuki Okada; Akifumi Tanaka; Masahito Suzuki; Emiko Nakashima; Yuichi Ono; Seiji Fukamizu; Yasuteru Yamauchi; Hiroshi Tada; Hitoshi Hachiya; Makoto Suzuki; Koji Azegami; Osamu Inaba; Atsushi Takahashi; Takashi Ashikaga; Tetsuo Sasano
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Changes of leucine-rich alpha 2 glycoprotein could be a marker of changes of endoscopic and histologic activity of ulcerative colitis
err2025-02-12
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errAoyama, Yuki; Hiraoka, Sakiko; Yasutomi, Eriko; Inokuchi, Toshihiro; Tanaka, Takehiro; Takei, Kensuke; Igawa, Shoko; Takeuchi, Keiko; Takahara, Masahiro; Toyosawa, Junki; Yamasaki, Yasushi; Kinugasa, Hideaki; Kato, Jun; Okada, Hiroyuki; Otsuka, Motoyuki
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Case-control study of IL23R rs76418789 polymorphism, smoking, and ulcerative colitis in Japan
err2024-11-01
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PREAI
errMiyake, Yoshihiro; Tanaka, Keiko; Nagata, Chisato; Furukawa, Shinya; Andoh, Akira; Yokoyama, Tetsuji; Yoshimura, Naoki; Mori, Kenichiro; Ninomiya, Tomoyuki; Yamamoto, Yasunori; Takeshita, Eiji; Ikeda, Yoshio; Saito, Mitsuru; Ohashi, Katsuhisa; Imaeda, Hirotsugu; Kakimoto, Kazuki; Higuchi, Kazuhide; Nunoi, Hiroaki; Mizukami, Yuji; Suzuki, Seiyuu; Hiraoka, Sakiko; Okada, Hiroyuki; Kawasaki, Keitarou; Higashiyama, Masaaki; Hokari, Ryota; Miura, Hiromasa; Miyake, Teruki; Kumagi, Teru; Kato, Hiromasa; Hato, Naohito; Sayama, Koji; Hiasa, Yoichi
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Rates and risk factors of bleeding after gastric endoscopic submucosal dissection with continuous warfarin or 1-day withdrawal of direct oral anticoagulants
err2024-10-03
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errHirata, Shoichiro; Hamada, Kenta; Iwamuro, Masaya; Mouri, Hirokazu; Miyahara, Koji; Tsuzuki, Takao; Yamauchi, Kenji; Kobayashi, Sayo; Takahashi, Sakuma; Takenaka, Ryuta; Hori, Shinichiro; Inoue, Masafumi; Toyokawa, Tatsuya; Nishimura, Mamoru; Ishiyama, Shuhei; Miyaike, Jiro; Kato, Ryo; Matsubara, Minoru; Yunoki, Naoko; Kanzaki, Hiromitsu; Kawahara, Yoshiro; Okada, Hiroyuki; Ishikawa, Hideki; Otsuka, Motoyuki; Okayama Gut Study Grp
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Innovative submucosal injection solution for endoscopic resection with phosphorylated pullulan: a preclinical study
err2024-06-01
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errOAAI
errSatomi, Takuya; Ochi, Yukari; Okihara, Takumi; Fujii, Hiroki; Yoshida, Yasuhiro; Mominoki, Katsumi; Hirayama, Haruko; Toyosawa, Junki; Yamasaki, Yasushi; Kawano, Seiji; Kawahara, Yoshiro; Okada, Hiroyuki; Otsuka, Motoyuki; Matsukawa, Akihiro
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Association of screening tool scores with overall survival in older patients with unresectable gastrointestinal or biliary pancreatic cancer: A retrospective study
err2024-05-01
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PREAI
errInoo, Shoko; Kono, Yoshiyasu; Kanzaki, Hiromitsu; Horiguchi, Shigeru; Kato, Hironari; Yamasaki, Yasushi; Hirata, Shoichiro; Kuraoka, Sakiko; Matsueda, Katsunori; Okanoue, Shotaro; Satomi, Takuya; Hamada, Kenta; Iwamuro, Masaya; Kawano, Seiji; Kawahara, Yoshiro; Okada, Hiroyuki; Otsuka, Motoyuki
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Incidence of phrenic nerve injury during pulmonary vein isolation using different cryoballoons: data from a large prospective ablation registry
err2024-04-08
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errOAAI
errTachibana, Shinichi; Miyazaki, Shinsuke; Nitta, Junichi; Shirai, Yasuhiro; Nagata, Yasutoshi; Sagawa, Yuichiro; Sekiguchi, Yukio; Inamura, Yukihiro; Sasaki, Takeshi; Yamauchi, Yasuteru; Inaba, Osamu; Ono, Yuichi; Suzuki, Makoto; Suzuki, Atsushi; Iwai, Shinsuke; Okada, Hiroyuki; Mizukami, Akira; Azegami, Koji; Hachiya, Hitoshi; Handa, Keita; Goto, Kentaro; Nishimura, Takuro; Hirao, Kenzo; Takahashi, Atsushi; Sasano, Tetsuo
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Coffee and caffeine intake reduces risk of ulcerative colitis: a case-control study in Japan
err2023-12-10
err6
PREAI
errTanaka, Keiko; Okubo, Hitomi; Miyake, Yoshihiro; Nagata, Chisato; Furukawa, Shinya; Andoh, Akira; Yokoyama, Tetsuji; Yoshimura, Naoki; Mori, Kenichiro; Ninomiya, Tomoyuki; Yamamoto, Yasunori; Takeshita, Eiji; Ikeda, Yoshio; Saito, Mitsuru; Ohashi, Katsuhisa; Imaeda, Hirotsugu; Kakimoto, Kazuki; Higuchi, Kazuhide; Nunoi, Hiroaki; Mizukami, Yuji; Suzuki, Seiyuu; Hiraoka, Sakiko; Okada, Hiroyuki; Kawasaki, Keitarou; Higashiyama, Masaaki; Hokari, Ryota; Miura, Hiromasa; Miyake, Teruki; Kumagi, Teru; Kato, Hiromasa; Hato, Naohito; Sayama, Koji; Hiasa, Yoichi
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Clinical Outcomes of Next-Generation Microwave Thermosphere Ablation for Hepatocellular Carcinoma with Primarily Hepatitis-Related Etiology
err2023-12-08
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errOAAI
errNakamura, Shinichiro; Tada, Toshifumi; Sue, Masahiko; Matsuo, Yu; Murakami, Shiho; Muramatsu, Toshiro; Morii, Kazuhiko; Okada, Hiroyuki
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MicroRNA-451a inhibits gemcitabine-refractory biliary tract cancer progression by suppressing the MIF-mediated PI3K/AKT pathway
err2023-12-01
err8
errOAAI
errObata, Taisuke; Tsutsumi, Koichiro; Ueta, Eijiro; Oda, Takashi; Kikuchi, Tatsuya; Ako, Soichiro; Fujii, Yuki; Yamazaki, Tatsuhiro; Uchida, Daisuke; Matsumoto, Kazuyuki; Horiguchi, Shigeru; Kato, Hironari; Okada, Hiroyuki; Otsuka, Motoyuki
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Optimal Bowel Preparation Method to Visualize the Distal Ileum via Small Bowel Capsule Endoscopy
err2023-10-20
err1
errOAAI
errKametaka, Daisuke; Ito, Mamoru; Kawano, Seiji; Ishiyama, Shuhei; Fujiwara, Akiko; Nasu, Junichirou; Yoshioka, Masao; Shiode, Junji; Yamamoto, Kazuhide; Iwamuro, Masaya; Kawahara, Yoshiro; Okada, Hiroyuki; Otsuka, Motoyuki
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Oxidative stress-related markers as prognostic factors for patients with primary sclerosing cholangitis in Japan
err2023-07-26
err3
errOAAI
errOyama, Atsushi; Takaki, Akinobu; Adachi, Takuya; Wada, Nozomu; Takeuchi, Yasuto; Onishi, Hideki; Shiraha, Hidenori; Okada, Hiroyuki; Otsuka, Motoyuki
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Results of the interim analysis of a prospective, multicenter, observational study of small subepithelial lesions in the stomach
err2023-06-15
err3
errOAAI
errIwamuro, Masaya; Mitsuhashi, Toshiharu; Inaba, Tomoki; Matsueda, Kazuhiro; Nagahara, Teruya; Takeuchi, Yoji; Doyama, Hisashi; Mizuno, Masakatsu; Yada, Tomoyuki; Kawai, Yoshinari; Nakamura, Jun; Matsubara, Minoru; Nebiki, Hiroko; Niimi, Keiko; Toyokawa, Tatsuya; Takenaka, Ryuta; Takeda, Sho; Tanaka, Shouichi; Nishimura, Mamoru; Tsuzuki, Takao; Akahoshi, Kazuya; Furuta, Takahisa; Haruma, Ken; Okada, Hiroyuki
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Long-term outcomes of patients with primary intestinal follicular lymphoma managed with watch-and-wait strategy
err2023-04-11
err7
errOAAI
errIwamuro, Masaya; Tanaka, Takehiro; Ennishi, Daisuke; Matsueda, Kazuhiro; Yoshioka, Masao; Miyahara, Koji; Sakaguchi, Chihiro; Nishimura, Mamoru; Nagahara, Teruya; Mannami, Tomohiko; Takenaka, Ryuta; Oka, Shohei; Inoue, Masafumi; Takimoto, Hidetaka; Inaba, Tomoki; Kobayashi, Sayo; Toyokawa, Tatsuya; Tsugeno, Hirofumi; Suzuki, Seiyuu; Sawada, Sachiko; Tanaka, Shouichi; Tsuzuki, Takao; Okada, Hiroyuki
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Effects of Helicobacter pylori and Nitrate-Reducing Bacteria Coculture on Cells
err2022-12-16
err3
errOAAI
errOjima, Hinako; Kuraoka, Sakiko; Okanoue, Shyoutarou; Okada, Hiroyuki; Gotoh, Kazuyoshi; Matsushita, Osamu; Watanabe, Akari; Yokota, Kenji
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Postoperative Bleeding Risk after Gastric Endoscopic Submucosal Dissection in Patients Receiving a P2Y12 Receptor Antagonist
err2022-09-29
err4
errOAAI
errHirai, Ryosuke; Kawano, Seiji; Inoo, Shoko; Kuraoka, Sakiko; Okanoue, Shotaro; Satomi, Takuya; Hamada, Kenta; Kono, Yoshiyasu; Kanzaki, Hiromitsu; Iwamuro, Masaya; Kawahara, Yoshiro; Okada, Hiroyuki
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Effectiveness of second-look endoscopy after gastric endoscopic submucosal dissection in patients taking antithrombotic agents: a multicenter propensity score matching analysis (May, 10.1007/s10120-022-01303-y, 2022)
err2022-07-30
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errIwatsubo, Taro; Takeuchi, Toshihisa; Hakoda, Akitoshi; Fujiwara, Yasuhiro; Nagami, Yasuaki; Naito, Yuji; Dohi, Osamu; Tatsuta, Tetsuya; Sawaya, Manabu; Jin, Xiaoyi; Koike, Tomoyuki; Sugimoto, Mitsushige; Murata, Masaki; Hamada, Kenta; Okada, Hiroyuki; Kobara, Hideki; Chiyo, Taiga; Yoshida, Norimasa; Tomatsuri, Naoya; Inaba, Tomoki; Ishikawa, Shigenao; Nagahara, Akihito; Ueyama, Hiroya; Koizumi, Eriko; Iwakiri, Katsuhiko; Mizukami, Kazuhiro; Murakami, Kazunari; Furuta, Takahisa; Suzuki, Takahiro; Ogasawara, Naotaka; Kasugai, Kunio; Isomoto, Hajime; Kawaguchi, Koichiro; Shibagaki, Kotaro; Kataoka, Hiromi; Shimura, Takaya; Suzuki, Hidekazu; Nishizawa, Toshihiro; Higuchi, Kazuhide
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