Akira Dobashi

Association between Gastric Acid Suppression Therapy and Scattered White Spots in the Duodenum: A Retrospective Observational Study

Mamoru Ito, Masakuni Kobayashi, Akira Dobashi, Takanori Tominaga et autres

Abstract Background and Study Aims Endoscopic duodenal findings remain undescribed after long-term use of antacids despite their known effects on duodenal physiology. We identified scattered white spots (SWSs) as an endoscopic finding of chronic acid suppression in the duodenum and aimed to …

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Risk of Postoperative Bleeding in Esophageal Endoscopic Submucosal Dissection for Squamous Cell Carcinoma in Patients on Antiplatelet Therapy: A Multicenter Retrospective Study in Japan

Ryosuke Hirai, Yoichi Yamamoto, Takeshi Yasuda, Takumi Yanagita et autres

OBJECTIVES: Postendoscopic submucosal dissection (ESD) bleeding remains a critical concern in patients receiving antithrombotic therapy, yet the risk after esophageal ESD is poorly characterized. This multicenter retrospective study evaluated the incidence of post-ESD bleeding and thromboembolism in patients undergoing esophageal ESD while …

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Usefulness of a novel reopenable clip with anchor prongs for mucosal defect closure after colorectal endoscopic submucosal dissection: A multicenter randomized controlled trial

Y Hirai, Naoya TADA, S Fukuhara, Y Takatori et autres

Aims Prophylactic clip closure after colorectal endoscopic submucosal dissection (ESD) is increasingly performed to prevent postoperative adverse events (AEs), such as delayed bleeding and perforation. However, complete closure of large mucosal defects after ESD using conventional clips remains technically demanding. The MANTIS …

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A Randomised Controlled Trial to Evaluate the Utility of an Ultrathin Endoscope with Blue Light Imaging for Detecting Pharyngeal and Oesophageal Neoplasms — Ultrathin vs. Magnifying Endoscopy

Akira Dobashi, Naoya TADA, T Futakuchi, S Kamba et autres

Aims Adding magnification observation to image-enhanced endoscopy has been shown to provide high diagnostic accuracy for oesophageal carcinoma. Although magnifying endoscopy is mainly used in pre-treatment evaluation for superficial oesophageal cancer, its adoption in daily practice remains limited. Recently, a high-resolution ultrathin …

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Submucosal tunneling–assisted laparoscopic and endoscopic cooperative surgery for gastrointestinal stromal tumor at the esophagogastric junction

Akira Dobashi, Mizuki Fukuda, Jumpei Yamamoto, Naoto Takahashi et autres

Su1276 ASSOCIATION BETWEEN GASTRIC ACID SUPPRESSION THERAPY AND SCATTERED WHITE SPOTSOFN THE DUODENUM:A RETROSPECTIVE OBSERVATIONAL STUDY

Maki Saihara, Mamoru Ito, Ryuta Fujii, Shunsuke Uchiyama et autres

Su1276 ASSOCIATION BETWEEN GASTRIC ACID SUPPRESSION THERAPY AND SCATTERED WHITE SPOTSOFN THE DUODENUM:A RETROSPECTIVE OBSERVATIONAL STUDY

Maki Saihara, Mamoru Ito, Ryuta Fujii, Shunsuke Uchiyama et autres

Enlarging Inflammatory Granulation Tissue After Endoscopic Submucosal Dissection at the Esophageal Inlet During Intensive Stricture Prophylaxis: A Case Report

Chihiro Tsurita, Naoya TADA, Akira Dobashi, Yukio Nishiya et autres

Surveillance endoscopy in a 47-year-old woman with previous hypopharyngeal chemoradiotherapy and esophageal endoscopic submucosal dissection (ESD) revealed a 12-mm superficial squamous cell carcinoma at the cervical esophagus near the inlet. ESD achieved en bloc resection with a half-circumferential mucosal defect, and histopathology …

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Long‐Term Outcomes of Surveillance Endoscopy After Endoscopic Resection for Early Esophageal Squamous Cell Carcinoma: A Multicenter Retrospective Study

Akira Dobashi, Toshiyuki Yoshio, Tatsunori Minamide, Machi Suka et autres

BACKGROUND: Endoscopic surveillance is mandatory for patients who underwent endoscopic resection (ER) for esophageal squamous cell carcinoma (ESCC) to detect multiple ESCCs. This study aimed to evaluate whether the current surveillance system is appropriate from the viewpoint of the clinical course after …

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Defect Closure after Colorectal Endoscopic Submucosal Dissection with and without Novel Mucosal Anchoring Clips: a Multi-Centre Randomized Controlled Study (MANTIS Trial)

Naoya TADA, Naoto Tamai, Yutaka Saito, Seiichiro Fukuhara et autres

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Cancer Incidence in Japanese Patients With Long‐Segment Barrett's Esophagus—Japan Nationwide 10‐Year Prospective Cohort Study

Norihisa Ishimura, Nobuyuki Matsuhashi, Junko Fujisaki, Takao Endo et autres

OBJECTIVES: The incidence of esophageal adenocarcinoma (EAC) arising in patients with long-segment Barrett's esophagus (LSBE) in Japan remains to be elucidated. This study aims to investigate the incidence of EAC in Japanese LSBE cases. METHODS: This is a multicenter prospective cohort study …

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A multicenter retrospective study on the risk factors of stricture formation after moderate circumferential defect resection in esophageal endoscopic submucosal dissection

Tsugumi Habu, Osamu Goto, Toshiyuki Yoshio, Waku Hatta et autres

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