Shuichi Ohara

SMALL BOWEL ENDOSCOPIC FINDINGS FOR EOSINOPHILIC GASTROENTERITIS: A MULTICENTER RETROSPECTIVE STUDY

Yu Sasaki, Yasuhiko Abe, Naoko Mizumoto, Eiki Nomura et autres

DISTINCTIVE GASTRIC ENDOSCOPIC FEATURES OF EOSINOPHILIC GASTROENTERITIS: A MULTICENTER RETROSPECTIVE STUDY

Naoko Mizumoto, Yasuhiko Abe, Yu Sasaki, Yasushi Takahashi et autres

Smoking history and severe atrophic gastritis assessed by pepsinogen are risk factors for the prevalence of synchronous gastric cancers in patients with gastric endoscopic submucosal dissection: a multicenter prospective cohort study

Waku Hatta, Tomoyuki Koike, Sho Asonuma, Hideki Okata et autres

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Evidence-based clinical practice guidelines for gastroesophageal reflux disease 2021

Katsuhiko Iwakiri, Yasuhiro Fujiwara, Noriaki Manabe, Eikichi Ihara et autres

In Japan, with the increasing prevalence of gastroesophageal reflux disease (GERD) and growing public interest, the Japanese Society of Gastroenterology issued Evidence-based Clinical Practice Guidelines for GERD (1st edition) in 2009 and a revised 2nd edition in 2015. A number of studies …

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Nature and treatment outcomes of bleeding post‐bulbar duodenal ulcers

Tamotsu Matsuhashi, Sho Fukuda, Yasuhiko Abe, Tatsuya Mikami et autres

BACKGROUND: Although post-bulbar duodenal ulcers (PBDUs) could become a source of upper gastrointestinal bleeding, the whole picture of the disease is unknown. We compared the characteristic features and treatment outcomes after endoscopic hemostasis between PBDUs and bulbar duodenal ulcers (BDUs). METHODS: Data …

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A simple prediction score for in-hospital mortality in patients with nonvariceal upper gastrointestinal bleeding

Tamotsu Matsuhashi, Waku Hatta, Takuto Hikichi, Sho Fukuda et autres

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Effects of anti‐thrombotic drugs on all‐cause mortality after upper gastrointestinal bleeding in Japan: A multicenter study with 2205 cases

Tamotsu Matsuhashi, Sho Fukuda, Tatsuya Mikami, Tetsuya Tatsuta et autres

OBJECTS: Although anti-thrombotic use is recognized as a risk factor for upper gastrointestinal bleeding (UGIB), there has been no clear evidence that it worsens the outcomes after the bleeding. The aim of this study is to investigate the effects of anti-thrombotic agents …

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Long‐term endoscopic surveillance for Barrett's esophagus in Japan: Multicenter prospective cohort study

Kazuaki Norita, Tomoyuki Koike, Masahiro Saito, Hirohiko Shinkai et autres

OBJECTS: Although a recent study showed the cancer incidence of Barrett's esophagus (BE) to be 1.2%/year in 251 patient-years in Japan, the long-term outcomes remain unclear. The present study estimated the cancer risk of BE in Japan using our original prospective multicenter …

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Self-study of the non-extension sign in an e-learning program improves diagnostic accuracy of invasion depth of early gastric cancer

Minoru Kato, Noriya Uedo, Takashi Nagahama, Kenshi Yao et autres

Abstract Background and study aims We developed an e-learning program for endoscopic diagnosis of invasion depth of early gastric cancer (EGC) using a simple diagnostic criterion called non-extension sign, and the contribution of self-study quizzes to improvement of diagnostic accuracy was evaluated. …

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Clinical Characteristics and Long-Term Prognosis of Asymptomatic Subjects with Esophageal Eosinophilia: Is it a Transient Condition or a Progressive Disease?

Yasuhiko Abe, Yu Sasaki, Makoto Yagi, Takao Yaoita et autres

Evidence-based clinical practice guidelines for gastroesophageal reflux disease 2015

Katsuhiko Iwakiri, Yoshikazu Kinoshita, Yasuki Habu, Tadayuki Oshima et autres

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Clinicopathological features of gastric adenocarcinoma of the fundic gland (chief cell predominant type) by retrospective and prospective analyses of endoscopic findings

Takashi Chiba, Katsuaki Kato, Takayuki Masuda, Shuichi Ohara et autres

BACKGROUND AND AIM: Gastric adenocarcinoma of the fundic gland type (chief cell predominant type) (GA-FG-CCP) is a variant of gastric adenocarcinoma with chief cell differentiation. GA-FG-CCP is rare and not well understood. The present study aimed to investigate the clinicopathological features of …

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