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201 results on '"Toyokawa, Tatsuya"'

1. Long-term outcomes of patients with primary intestinal follicular lymphoma managed with watch-and-wait strategy

Author

Iwamuro, 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, and Okada, Hiroyuki

Published
2023
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4. Long-term monitoring of gastric mucosa-associated lymphoid tissue lymphoma in patients with extra copies of the MALT1 gene

Author

Iwamuro, Masaya, primary, Takenaka, Ryuta, additional, Miyahara, Koji, additional, Okanoue, Shotaro, additional, Yoshioka, Masao, additional, Sakaguchi, Chihiro, additional, Yamamoto, Kumiko, additional, Kawai, Yoshinari, additional, Toyokawa, Tatsuya, additional, Tanaka, Takehiro, additional, and Otsuka, Motoyuki, additional

Published
2024
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6. A study for every second day administration of vonoprazan for maintenance treatment of erosive GERD (ESD von GERD): a multicenter randomized cross-over study

Author

Matsuda, Soichiro, Kato, Mototsugu, Sakakibara, Yuko, Hamada, Hiroshige, Sasaki, Yoshihiro, Mori, Hideki, Hirai, Yuichiro, Inoue, Shuji, Toyokawa, Tatsuya, Kagaya, Takashi, Kuwai, Toshio, Esaka, Naoki, Yamashita, Haruhiro, Watanabe, Noriko, Matsumoto, Mio, Fujii, Hiroyuki, Demura, Mamiko, Kubo, Kimitoshi, Mabe, Katsuhiro, and Harada, Naohiko

Published
2022
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7. AJM300 (carotegrast methyl), an oral antagonist of α4-integrin, as induction therapy for patients with moderately active ulcerative colitis: a multicentre, randomised, double-blind, placebo-controlled, phase 3 study

Author

Motoya, Satoshi, Maemoto, Atsuo, Fujiya, Mikihiro, Ashida, Toshifumi, Goto, Mitsuru, Matsumoto, Takayuki, Suzuki, Yasuo, Hamahata, Yukihiro, Nakagawa, Tomoo, Kato, Naoya, Kato, Jun, Endo, Yutaka, Suzuki, Ryoichi, Matsuda, Koichiro, Ohmiya, Naoki, Katsushima, Shinji, Hosomi, Shuhei, Tarumi, Ken-ichi, Watanabe, Chiyuki, Saito, Mitsuru, Yokoyama, Yuichiro, Inaba, Tomoki, Sakata, Yasuhisa, Hongo, Hitoshi, Shibuya, Tomoyoshi, Kawakami, Kazuhiko, Kakuta, Yoichi, Irisawa, Atsushi, Yoshimura, Naoki, Fukuda, Katsuyuki, Shirai, Takayuki, Ichikawa, Hitoshi, Nagata, Junko, Suzuki, Takayoshi, Yokoyama, Kaoru, Tomidokoro, Takashi, Kojima, Yuichiro, Yamada, Masahiro, Yamamoto, Hideko, Yamamoto, Takayuki, Horiki, Noriyuki, Obata, Hirozumi, Inoue, Satoko, Tanaka, Shinji, Toyokawa, Tatsuya, Kunihiro, Masaki, Hisabe, Takashi, Ogata, Shinichi, Takeshima, Fuminao, Matsushima, Kayoko, Matsuhashi, Nobuyuki, Sakuraba, Hirotake, Iwabuchi, Masahiro, Tsuchiya, Akihiko, Uchiyama, Kan, Kanai, Takanori, Nakamura, Masanao, Yokoyama, Tadashi, Hida, Nobuyuki, Mitsuyama, Keiichi, Osada, Taro, Hiraoka, Sakiko, Tsuzuki, Tomoyuki, Masuo, Takashige, Hokari, Ryota, Kobayashi, Taku, Saruta, Masayuki, Araki, Masao, Araki, Hiroshi, Shimizu, Masahito, Kikuchi, Masakazu, Nishikawa, Takahiro, Takedatsu, Hidetoshi, Aoyagi, Kunihiko, Ochiai, Toshiaki, Toda, Nobuo, Mizokami, Yuji, Nagahori, Masakazu, Matsueda, Kazuhiro, Kino, Hitoshi, Kanamori, Akira, Suzuki, Tsunehiro, Sakurai, Toshiharu, Kudo, Masatoshi, Kitano, Atsuo, Hisamatsu, Tadakazu, Kumagai, Shinji, Ninomiya, Tomoyuki, Mori, Kenichiro, Yoshida, Shun-ichi, Goto, Mitsuhide, Matsuoka, Katsuyoshi, Watanabe, Mamoru, Ohmori, Toshihide, Nakajima, Koichi, Ishida, Tetsuya, Ishiguro, Yoh, Kanke, Kazunari, Kobayashi, Kiyonori, Hirai, Fumihito, Watanabe, Kenji, Mizusawa, Hidehiro, Kishida, Shuji, Miura, Yoshiharu, Ohta, Akira, Kajioka, Toshifumi, and Hibi, Toshifumi

Published
2022
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8. Endoscopic and clinical features of gastric emphysema

Author

Iwamuro, Masaya, primary, Takenaka, Ryuta, additional, Toyokawa, Tatsuya, additional, Kita, Masahide, additional, Tsuzuki, Takao, additional, Yoshioka, Masao, additional, Gotoda, Tatsuhiro, additional, Okanoue, Shotaro, additional, Matsubara, Minoru, additional, Sakaguchi, Chihiro, additional, and Otsuka, Motoyuki, additional

Published
2023
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9. Results of the interim analysis of a prospective, multicenter, observational study of small subepithelial lesions in the stomach.

Author

Iwamuro, 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, and Tsuzuki, Takao

Subjects
SCIENTIFIC observation, STOMACH, NATURAL history, TUMOR surgery, GASTROINTESTINAL stromal tumors
Abstract

Objectives: Long‐term outcomes of gastric subepithelial lesions have not been elucidated. To reveal the natural history, we initiated a prospective, 10‐year follow‐up of patients with small (≤20 mm) gastric subepithelial lesions in September 2014. Here, we report the results of an interim analysis of a prospective observational study. Methods: In total, 567 patients with 610 lesions were prospectively registered between September 2014 and August 2016. The location, size, morphology, and number of subepithelial lesions were recorded on a web‐based case report form. This study has been conducted as an Academic Committee Working Group of the Japan Gastroenterological Endoscopy Society. Results: The endoscopic follow‐up period was 4.60 ± 1.73 years (mean ± standard deviation), and survival data were investigated for 5.28 ± 1.68 years. This interim analysis revealed that the estimated cumulative incidence of a size increase ≥5 mm, after accounting for patients' death and resection of the tumor as competing risk events, was 4.5% at 5 years. In addition, the estimated cumulative incidence of lesion size increase ≥5 mm or resection of lesions was 7.9% at 5 years, and that of size increase ≥10 mm or resection of lesions was 4.5% at 5 years. Conclusion: These results indicate that approximately one in 13 patients with small (≤20 mm) gastric subepithelial lesions may require resection or further investigation for increased tumor size (≥5 mm) within 5 years. [ABSTRACT FROM AUTHOR]

Published
2024
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12. Lesion size, elevated morphology, and non or closed-type atrophy are predictive factors for gastric adenocarcinoma of the fundic gland type rather than oxyntic gland adenoma

Author

Iwamuro, Masaya, Kusumoto, Chiaki, Nakagawa, Masahiro, Matsueda, Kazuhiro, Kobayashi, Sayo, Yoshioka, Masao, Inaba, Tomoki, Toyokawa, Tatsuya, Sakaguchi, Chihiro, Tanaka, Shouichi, Tanaka, Takehiro, and Okada, Hiroyuki

Subjects
oxyntic gland adenoma, Gastric adenocarcinoma of the fundic gland type (GA-FG), Oncology, gastric neoplasms, submucosal invasion, Gastroenterology
Abstract

Background: An oxyntic gland neoplasm confined to the mucosal layer (T1a) is classified as an oxyntic gland adenoma, whereas that with submucosal invasion (T1b) is defined as gastric adenocarcinoma of the fundic gland type (GA-FG). Methods: To reveal the differences in clinical features between them, we retrospectively investigated 136 patients with 150 oxyntic gland adenoma and GA-FG lesions. Results: The univariate analysis revealed that the mean size (GA-FG vs. oxyntic gland adenoma, 7.7±5.4 vs. 5.5±3.1 mm), the prevalence of elevated morphology (79.1% vs. 51.8%), black pigmentation within the lesion (23.9% vs. 9.6%), and non or closed-type atrophy (81.2% vs. 65.1%) were different between the two groups. A multivariate logistic regression analysis revealed that ≥5 mm lesion size (odds ratio, 2.96; 95% confidence interval: 1.21–7.23), elevated morphology (odds ratio, 2.40; 95% confidence interval: 1.06–5.45), and no or closed-type atrophy (odds ratio, 2.49; 95% confidence interval: 1.07–5.80) were factors in distinguishing GA-FG from oxyntic gland adenoma. When oxyntic gland neoplasms with no or one feature were judged as oxyntic gland adenomas and those with two or three features were judged as GA-FG, the sensitivity and specificity were 85.1% and 43.4% for GA-FG, respectively. Conclusions: We identified three possible distinctive features of GA-FG compared to oxyntic gland adenoma: lesion size ≥5 mm, elevated morphology, and no or closed-type atrophy.

Published
2023

13. Current prognostic factors of advanced gastric cancer patients treated with chemotherapy: real world data from a Japanese 12 institutions

Author

Yamamoto, Shumpei, primary, Kanzaki, Hiromitsu, additional, Sakaguchi, Chihiro, additional, Mouri, Hirokazu, additional, Tsuzuki, Takao, additional, Nasu, Junichiro, additional, Kobayashi, Sayo, additional, Toyokawa, Tatsuya, additional, Obayashi, Yuka, additional, Inoue, Masafumi, additional, Kato, Ryo, additional, Matsubara, Minoru, additional, Kita, Masahide, additional, and Okada, Hiroyuki, additional

Published
2023
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14. Results of the interim analysis of a prospective, multicenter, observational study of small subepithelial lesions in the stomach

Author

Iwamuro, Masaya, primary, Mitsuhashi, Toshiharu, additional, Inaba, Tomoki, additional, Matsueda, Kazuhiro, additional, Nagahara, Teruya, additional, Takeuchi, Yoji, additional, Doyama, Hisashi, additional, Mizuno, Masakatsu, additional, Yada, Tomoyuki, additional, Kawai, Yoshinari, additional, Nakamura, Jun, additional, Matsubara, Minoru, additional, Nebiki, Hiroko, additional, Niimi, Keiko, additional, Toyokawa, Tatsuya, additional, Takenaka, Ryuta, additional, Takeda, Sho, additional, Tanaka, Shouichi, additional, Nishimura, Mamoru, additional, Tsuzuki, Takao, additional, Akahoshi, Kazuya, additional, Furuta, Takahisa, additional, Haruma, Ken, additional, and Okada, Hiroyuki, additional

Published
2023
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16. Clinicopathological Characteristics of Superficial Barrett's Adenocarcinoma in a Japanese Population: A Retrospective, Multicenter Study

Author

Hamada, Kenta, Kanzaki, Hiromitsu, Miyahara, Koji, Nakagawa, Masahiro, Mouri, Hirokazu, Mizuno, Motowo, Takahashi, Sakuma, Hori, Shinichiro, Nasu, Junichiro, Tsuzuki, Takao, Miyaike, Jiro, Takenaka, Ryuta, Yamauchi, Kenji, Kobayashi, Sayo, Toyokawa, Tatsuya, Inoue, Masafumi, Nishimura, Mamoru, Matsubara, Minoru, Tomoda, Jun, Yamasaki, Yasushi, Tanaka, Takehiro, Shirakawa, Yasuhiro, Kawahara, Yoshiro, Fujiwara, Toshiyoshi, Okada, Hiroyuki, and Okayama Gut Study Group

Subjects
Barrett's adenocarcinoma, lesion, surgery, Barrett Esophagus, endoscopic resection, Esophageal Neoplasms, Japan, short -segment Barrett's esophagus, metachronous, Humans, Adenocarcinoma, Retrospective Studies, long -segment Barrett's esophagus
Abstract

Objective Although Barrett's adenocarcinoma (BA) remains a minor disease in Japan, its incidence has been gradually increasing. We analyzed the characteristics of BA in Japanese populations. Methods We retrospectively reviewed medical records and analyzed the clinicopathological differences between short-segment Barrett's esophagus (SSBE) and long-segment Barrett's esophagus (LSBE), as well as metastasis. Local recurrence and metachronous lesions were analyzed only in patients who underwent endoscopic resection (ER). Patients Consecutive patients who had pathological T1 BAs resected by ER or surgery from January 2003 Results A total of 168 patients were analyzed, including 139 with SSBE and 29 with LSBE. In total, 67% of the SSBE lesions and 32% of the LSBE lesions were located between 0 and 3 o'clock (p=0.0014). No patients who achieved pathological margin-free resection (pR0) and 17% of patients who did not achieve pR0 experienced local recurrence (p=0.0131). None of the patients without lymphovascular involvement, a poorly differentiated component, lesion size of >30 mm, and submucosal invasion of >500 mu m experienced metastasis. The 5-year cumulative incidence rate of metachronous BA after ER was 0% in patients with SSBE and 40% in patients with LSBE (p=0.0005). Conclusion Superficial BA was likely to be detected at the right anterior wall of SSBE in the Japanese population. The risk for metachronous BA after ER was high in Japanese patients with LSBE, as in Western patients.

Published
2022

17. Multicenter Prospective Study on the Safety of Upper Gastrointestinal Endoscopic Procedures in Antithrombotic Drug Users

Author

Kono, Yoshiyasu, Matsubara, Minoru, Toyokawa, Tatsuya, Takenaka, Ryuta, Suzuki, Seiyu, Nasu, Junichirou, Yoshioka, Masao, Nakagawa, Masahiro, Mizuno, Motowo, Sakae, Hiroyuki, Abe, Makoto, Gotoda, Tatsuhiro, Miura, Ko, Kanzaki, Hiromitsu, Iwamuro, Masaya, Hori, Keisuke, Tsuzuki, Takao, Kita, Masahide, Kawano, Seiji, Kawahara, Yoshiro, and Okada, Hiroyuki

Published
2017
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18. SIGNIFICANCE OF EUS IN THE FOLLOW-UP OF SMALL SUBEPITHELIAL LESIONS IN THE STOMACH: A PROSPECTIVE, MULTICENTER, OBSERVATIONAL STUDY.

Author

Nebiki, Hiroko, Iwamuro, Masaya, Inaba, Tomoki, Matsueda, Kazuhiro, Takeuchi, Yoji, Nagahara, Teruya, Doyama, Hisashi, Mizuno, Masakatsu, Yada, Tomoyuki, Kawai, Yoshinari, Nakamura, Jun, Matubara, Minoru, Toyokawa, Tatsuya, Takenaka, Ryuta, Takeda, Sho, Tanaka, Shouichi, Nishimura, Mamoru, Tsuzuki, Takao, Akahoshi, Kazuya, and Fujishiro, Mitsuhiro

Published
2024
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19. AJM300 (carotegrast methyl), an oral antagonist of α4-integrin, as induction therapy for patients with moderately active ulcerative colitis: a multicentre, randomised, double-blind, placebo-controlled, phase 3 study

Author

Matsuoka, Katsuyoshi, primary, Watanabe, Mamoru, additional, Ohmori, Toshihide, additional, Nakajima, Koichi, additional, Ishida, Tetsuya, additional, Ishiguro, Yoh, additional, Kanke, Kazunari, additional, Kobayashi, Kiyonori, additional, Hirai, Fumihito, additional, Watanabe, Kenji, additional, Mizusawa, Hidehiro, additional, Kishida, Shuji, additional, Miura, Yoshiharu, additional, Ohta, Akira, additional, Kajioka, Toshifumi, additional, Hibi, Toshifumi, additional, Motoya, Satoshi, additional, Maemoto, Atsuo, additional, Fujiya, Mikihiro, additional, Ashida, Toshifumi, additional, Goto, Mitsuru, additional, Matsumoto, Takayuki, additional, Suzuki, Yasuo, additional, Hamahata, Yukihiro, additional, Nakagawa, Tomoo, additional, Kato, Naoya, additional, Kato, Jun, additional, Endo, Yutaka, additional, Suzuki, Ryoichi, additional, Matsuda, Koichiro, additional, Ohmiya, Naoki, additional, Katsushima, Shinji, additional, Hosomi, Shuhei, additional, Tarumi, Ken-ichi, additional, Watanabe, Chiyuki, additional, Saito, Mitsuru, additional, Yokoyama, Yuichiro, additional, Inaba, Tomoki, additional, Sakata, Yasuhisa, additional, Hongo, Hitoshi, additional, Shibuya, Tomoyoshi, additional, Kawakami, Kazuhiko, additional, Kakuta, Yoichi, additional, Irisawa, Atsushi, additional, Yoshimura, Naoki, additional, Fukuda, Katsuyuki, additional, Shirai, Takayuki, additional, Ichikawa, Hitoshi, additional, Nagata, Junko, additional, Suzuki, Takayoshi, additional, Yokoyama, Kaoru, additional, Tomidokoro, Takashi, additional, Kojima, Yuichiro, additional, Yamada, Masahiro, additional, Yamamoto, Hideko, additional, Yamamoto, Takayuki, additional, Horiki, Noriyuki, additional, Obata, Hirozumi, additional, Inoue, Satoko, additional, Tanaka, Shinji, additional, Toyokawa, Tatsuya, additional, Kunihiro, Masaki, additional, Hisabe, Takashi, additional, Ogata, Shinichi, additional, Takeshima, Fuminao, additional, Matsushima, Kayoko, additional, Matsuhashi, Nobuyuki, additional, Sakuraba, Hirotake, additional, Iwabuchi, Masahiro, additional, Tsuchiya, Akihiko, additional, Uchiyama, Kan, additional, Kanai, Takanori, additional, Nakamura, Masanao, additional, Yokoyama, Tadashi, additional, Hida, Nobuyuki, additional, Mitsuyama, Keiichi, additional, Osada, Taro, additional, Hiraoka, Sakiko, additional, Tsuzuki, Tomoyuki, additional, Masuo, Takashige, additional, Hokari, Ryota, additional, Kobayashi, Taku, additional, Saruta, Masayuki, additional, Araki, Masao, additional, Araki, Hiroshi, additional, Shimizu, Masahito, additional, Kikuchi, Masakazu, additional, Nishikawa, Takahiro, additional, Takedatsu, Hidetoshi, additional, Aoyagi, Kunihiko, additional, Ochiai, Toshiaki, additional, Toda, Nobuo, additional, Mizokami, Yuji, additional, Nagahori, Masakazu, additional, Matsueda, Kazuhiro, additional, Kino, Hitoshi, additional, Kanamori, Akira, additional, Suzuki, Tsunehiro, additional, Sakurai, Toshiharu, additional, Kudo, Masatoshi, additional, Kitano, Atsuo, additional, Hisamatsu, Tadakazu, additional, Kumagai, Shinji, additional, Ninomiya, Tomoyuki, additional, Mori, Kenichiro, additional, Yoshida, Shun-ichi, additional, and Goto, Mitsuhide, additional

Published
2022
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20. Endoscopic Features of Oxyntic Gland Adenoma and Gastric Adenocarcinoma of the Fundic Gland Type Differ Between Patients with and Without Helicobacter pylori Infection: A Retrospective Observational Study

Author

Iwamuro, Masaya, primary, Kusumoto, Chiaki, additional, Nakagawa, Masahiro, additional, Matsueda, Kazuhiro, additional, Kobayashi, Sayo, additional, Yoshioka, Masao, additional, Inaba, Tomoki, additional, Toyokawa, Tatsuya, additional, Sakaguchi, Chihiro, additional, Tanaka, Shouichi, additional, Tanaka, Takehiro, additional, and Okada, Hiroyuki, additional

Published
2022
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21. Additional file 1 of Endoscopic features of oxyntic gland adenoma and gastric adenocarcinoma of the fundic gland type differ between patients with and without Helicobacter pylori infection: a retrospective observational study

Author

Iwamuro, Masaya, Kusumoto, Chiaki, Nakagawa, Masahiro, Matsueda, Kazuhiro, Kobayashi, Sayo, Yoshioka, Masao, Inaba, Tomoki, Toyokawa, Tatsuya, Sakaguchi, Chihiro, Tanaka, Shouichi, Tanaka, Takehiro, and Okada, Hiroyuki

Abstract

Additional file 1. Table S1. Comparison of the active and inactive gastritis groups.

Published
2022
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23. A prospective multicenter study of the magnifying endoscopic evaluation of the invasion depth of superficial esophageal cancers

Author

Gotoda, Tatsuhiro, primary, Hori, Keisuke, additional, Nakagawa, Masahiro, additional, Kobayashi, Sayo, additional, Toyokawa, Tatsuya, additional, Ishiyama, Shuhei, additional, Imagawa, Atsushi, additional, Abe, Makoto, additional, Kono, Yoshiyasu, additional, Kanzaki, Hiromitsu, additional, Iwamuro, Masaya, additional, Kawano, Seiji, additional, Kawahara, Yoshiro, additional, and Okada, Hiroyuki, additional

Published
2021
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24. Erratum to: Multicenter Prospective Study on the Safety of Upper Gastrointestinal Endoscopic Procedures in Antithrombotic Drug Users

Author

Kono, Yoshiyasu, Matsubara, Minoru, Toyokawa, Tatsuya, Takenaka, Ryuta, Suzuki, Seiyu, Nasu, Junichirou, Yoshioka, Masao, Nakagawa, Masahiro, Mizuno, Motowo, Sakae, Hiroyuki, Abe, Makoto, Gotoda, Tatsuhiro, Miura, Ko, Kanzaki, Hiromitsu, Iwamuro, Masaya, Hori, Keisuke, Tsuzuki, Takao, Kita, Masahide, Kawano, Seiji, Kawahara, Yoshiro, and Okada, Hiroyuki

Published
2017
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25. A multicenter survey of enteroscopy for the diagnosis of intestinal follicular lymphoma

Author

IWAMURO, MASAYA, OKADA, HIROYUKI, KAWANO, SEIJI, SHIODE, JUNJI, TAKENAKA, RYUTA, IMAGAWA, ATSUSHI, INABA, TOMOKI, SUZUKI, SEIYU, NISHIMURA, MAMORU, MIZUNO, MOTOWO, ARAKI, MASASHI, MANNAMI, TOMOHIKO, UEKI, TORU, KOBASHI, HARUHIKO, FUKATSU, HARUKA, TANAKA, SHOUICHI, OMOTO, AKIYOSHI, KAWAI, YOSHINARI, KITAGAWA, TAKASHI, TOYOKAWA, TATSUYA, TAKATA, KATSUYOSHI, YOSHINO, TADASHI, TAKAKI, AKINOBU, and YAMAMOTO, KAZUHIDE

Published
2015
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29. Efficacy and safety of endoscopic submucosal dissection for gastric tube cancer: A multicenter retrospective study

Author

Satomi, Takuya, primary, Kawano, Seiji, additional, Inaba, Tomoki, additional, Nakagawa, Masahiro, additional, Mouri, Hirokazu, additional, Yoshioka, Masao, additional, Tanaka, Shoichi, additional, Toyokawa, Tatsuya, additional, Kobayashi, Sayo, additional, Tanaka, Takehiro, additional, Kanzaki, Hiromitsu, additional, Iwamuro, Masaya, additional, Kawahara, Yoshiro, additional, and Okada, Hiroyuki, additional

Published
2021
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31. Continued Aspirin Treatment May Be a Risk Factor of Delayed Bleeding after Gastric Endoscopic Submucosal Dissection under Heparin Replacement: A Retrospective Multicenter Study

Author

Hamada, Kenta, primary, Kanzaki, Hiromitsu, additional, Inoue, Masafumi, additional, Ishiyama, Shuhei, additional, Yamauchi, Kenji, additional, Miyahara, Koji, additional, Toyokawa, Tatsuya, additional, Tsuzuki, Takao, additional, Miyaike, Jiro, additional, Matsubara, Minoru, additional, Takahashi, Sakuma, additional, Nishimura, Mamoru, additional, Takenaka, Ryuta, additional, Yunoki, Naoko, additional, Hori, Shinichiro, additional, Kobayashi, Sayo, additional, Yamasaki, Yasushi, additional, Kawahara, Yoshiro, additional, Ishikawa, Hideki, additional, and Okada, Hiroyuki, additional

Published
2020
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32. S1351 A Study for Every Second Day Administration of Vonoprazan in Maintenance Treatment of Erosive GERD (ESD Von GERD): A Multicenter Randomized Crossover Study

Author

Matsuda, Soichiro, primary, Kato, Mototsugu, additional, Sakakibara, Yuko, additional, Hamada, Hiroshige, additional, Sasaki, Yoshihiro, additional, Mori, Hideki, additional, Hirai, Yuichiro, additional, Inoue, Shuji, additional, Toyokawa, Tatsuya, additional, Kagaya, Takashi, additional, Kuwai, Toshio, additional, Esaka, Naoki, additional, Yamashita, Haruhiro, additional, Watanabe, Noriko, additional, Fujii, Hiroyuki, additional, Demura, Mamiko, additional, Kubo, Kimitoshi, additional, Mabe, Katsuhiro, additional, and Harada, Naohiro, additional

Published
2020
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34. Su1861 MULTICENTER SURVEY ON MESALAMINE INTOLERANCE IN PATIENTS WITH ULCERATIVE COLITIS

Author

Hiraoka, Sakiko, primary, Fujiwara, Akiko, additional, Toyokawa, Tatsuya, additional, Higashi, Reiji, additional, Moritou, Yuki, additional, Takagi, Shinjiro, additional, Matsueda, Kazuhiro, additional, Suzuki, Seiyu, additional, Miyaike, Jiro, additional, Inokuchi, Toshihiro, additional, Takahara, Masahiro, additional, Kato, Jun, additional, and Okada, Hiroyuki, additional

Published
2020
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35. Diagnostic Role of 18F-Fluorodeoxyglucose Positron Emission Tomography in Gastric Mesenchymal Tumors

Author

Iwamuro, Masaya, primary, Miyahara, Koji, additional, Sakaguchi, Chihiro, additional, Takenaka, Ryuta, additional, Kobayashi, Sayo, additional, Mouri, Hirokazu, additional, Tanaka, Shigetomi, additional, Toyokawa, Tatsuya, additional, Tanaka, Shouichi, additional, Nishimura, Mamoru, additional, Yamauchi, Kenji, additional, Tanaka, Takehiro, additional, and Okada, Hiroyuki, additional

Published
2020
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38. Risk Factors for Delayed Bleeding after Therapeutic Gastrointestinal Endoscopy in Patients Receiving Oral Anticoagulants: A Multicenter Retrospective Study

Author

Kubo, Kimitoshi, primary, Kato, Mototsugu, additional, Mabe, Katsuhiro, additional, Harada, Naohiko, additional, Iboshi, Yoichiro, additional, Kagaya, Takashi, additional, Ono, Masayoshi, additional, Toyokawa, Tatsuya, additional, Yamashita, Haruhiro, additional, Kuwai, Toshio, additional, Hamada, Hiroshige, additional, Sakakibara, Yuko, additional, Nishiyama, Hitoshi, additional, Ara, Nobuyuki, additional, Mori, Hideki, additional, Matsumoto, Mio, additional, Takahashi, Yasuo, additional, Katsushima, Shinji, additional, Watanabe, Noriko, additional, Ogura, Yoshito, additional, Saito, Hiroki, additional, Masuda, Eiji, additional, and Amano, Toraji, additional

Published
2019
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39. Long-Term Outcome in Patients with a Solitary Peutz-Jeghers Polyp

Author

Iwamuro, Masaya, primary, Aoyama, Yuki, additional, Suzuki, Seiyuu, additional, Kobayashi, Sayo, additional, Toyokawa, Tatsuya, additional, Moritou, Yuki, additional, Hori, Shinichiro, additional, Matsueda, Kazuhiro, additional, Yoshioka, Masao, additional, Tanaka, Takehiro, additional, and Okada, Hiroyuki, additional

Published
2019
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40. Risk Factors for Delayed Bleeding after Therapeutic Gastrointestinal Endoscopy in Patients Receiving Oral Anticoagulants: A Multicenter Retrospective Study.

Author

Kubo, Kimitoshi, Kato, Mototsugu, Mabe, Katsuhiro, Harada, Naohiko, Iboshi, Yoichiro, Kagaya, Takashi, Ono, Masayoshi, Toyokawa, Tatsuya, Yamashita, Haruhiro, Kuwai, Toshio, Hamada, Hiroshige, Sakakibara, Yuko, Nishiyama, Hitoshi, Ara, Nobuyuki, Mori, Hideki, Matsumoto, Mio, Takahashi, Yasuo, Katsushima, Shinji, Watanabe, Noriko, and Ogura, Yoshito

Subjects
ANTICOAGULANTS, ENDOSCOPIC surgery, PLATELET aggregation inhibitors, POLYPECTOMY, HEMORRHAGE, HEPARIN, DUODENAL tumors
Abstract

Background/Aims: Delayed bleeding is among the adverse events associated with therapeutic gastrointestinal endoscopy. The aim of this study was to evaluate risk factors for delayed bleeding after gastrointestinal endoscopic resection in patients receiving oral anticoagulants as well as to compare the rates of occurrence of delayed bleeding between the oral anticoagulants used. Methods: We retrospectively analyzed a total of 772 patients receiving anticoagulants. Of these, 389 and 383 patients were receiving direct oral anticoagulants (DOACs) and warfarin, respectively. Therapeutic endoscopic procedures performed included endoscopic submucosal dissection (ESD), endoscopic mucosal resection, polypectomy, and cold polypectomy. Results: Delayed bleeding occurred in 90 patients (11.7%) with no significant difference between the DOAC and warfarin groups (9.5 and 13.8%, respectively). Delayed bleeding occurred significantly more frequently with apixaban than with rivaroxaban (13.5 vs. 6.4%; p < 0.05). A multivariate analysis identified continued anticoagulant therapy (OR 2.29), anticoagulant withdrawal with heparin bridging therapy (HBT; OR 2.18), anticoagulant therapy combined with 1 antiplatelet drug (OR 1.72), and ESD (OR 3.87) as risk factors for delayed bleeding. Conclusion: This study identified continued anticoagulant therapy, anticoagulant withdrawal with HBT, anticoagulant therapy combined with 1 antiplatelet drug, and ESD as risk factors for delayed bleeding after therapeutic endoscopy in patients receiving oral anticoagulants. Delayed bleeding rates were not significantly different between those receiving DOACs and warfarin. It was also suggested that the occurrence of delayed bleeding may vary between different DOACs and that oral anticoagulant withdrawal should be minimized during therapeutic gastrointestinal endoscopy, given the thromboembolic risk involved. [ABSTRACT FROM AUTHOR]

Published
2021
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41. Comparison of anticoagulants and risk factors for bleeding following endoscopic sphincterotomy among anticoagulant users: Results from a large multicenter retrospective study

Author

Muro, Shinichiro, primary, Kato, Hironari, additional, Ishida, Etsuji, additional, Ueki, Toru, additional, Fujii, Masakuni, additional, Harada, Ryo, additional, Seki, Hiroyuki, additional, Hirao, Ken, additional, Wato, Masaki, additional, Akimoto, Yutaka, additional, Takatani, Masahiro, additional, Tsugeno, Hirofumi, additional, Miyaike, Jiro, additional, Toyokawa, Tatsuya, additional, Nishimura, Mamoru, additional, Yunoki, Naoko, additional, and Okada, Hiroyuki, additional

Published
2019
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44. Mo1174 CLINICOPATHOLOGICAL CHARACTERISTICS AND RISK FACTORS FOR METASTASIS OF SUPERFICIAL BARRETT'S ADENOCARCINOMA:A MULTICENTER RETROSPECTIVE OBSERVATIONAL STUDY

Author

Mouri, Hirokazu, primary, Mizuno, Motowo, additional, Hamada, Kenta, additional, Kanzaki, Hiromitsu, additional, Okada, Hiroyuki, additional, Takahashi, Sakuma, additional, Nasu, Junichiro, additional, Miyaike, Jiro, additional, Yamauchi, Kenji, additional, Takenaka, Ryuta, additional, Kobayashi, Sayo, additional, Toyokawa, Tatsuya, additional, Inoue, Masafumi, additional, Nishimura, Mamoru, additional, Matubara, Minoru, additional, and Tomoda, Jun, additional

Published
2019
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46. Long‐term outcomes of patients with Crohn's disease who received infliximab or adalimumab as the first‐line biologics

Author

Inokuchi, Toshihiro, primary, Takahashi, Sakuma, additional, Hiraoka, Sakiko, additional, Toyokawa, Tatsuya, additional, Takagi, Shinjiro, additional, Takemoto, Koji, additional, Miyaike, Jiro, additional, Fujimoto, Tsuyoshi, additional, Higashi, Reiji, additional, Morito, Yuki, additional, Nawa, Toru, additional, Suzuki, Seiyuu, additional, Nishimura, Mamoru, additional, Inoue, Masafumi, additional, Kato, Jun, additional, and Okada, Hiroyuki, additional

Published
2019
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47. Local recurrence of diminutive colorectal polyps after cold forceps polypectomy with jumbo forceps followed by magnified narrow-band imaging: a multicenter prospective study

Author

Kuwai, Toshio, additional, Yamada, Takuya, additional, Toyokawa, Tatsuya, additional, Iwase, Hiroaki, additional, Kudo, Tomohiro, additional, Esaka, Naoki, additional, Ohta, Hajime, additional, Yamashita, Haruhiro, additional, Hosoda, Yasuo, additional, Watanabe, Noriko, additional, and Harada, Naohiko, additional

Published
2019
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