Mamoru Ito

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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Assessment of Red Dichromatic Imaging with Indigo Carmine for Identifying Deep Submucosal Invasion in Colorectal Tumors: A Pilot Study

Toshiki Futakuchi, Naoto Tamai, Mai Fukuda, Yūko Hasegawa et autres

Background/Objectives: Accurate pT1b diagnosis in colorectal cancer is vital owing to the risk of lymph node metastasis. While Japan NBI (narrow band imaging) Expert Team (JNET) classification is widely applied, accurate diagnosis of type 2B lesions remains challenging, often requiring pit pattern …

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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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Hybrid Nerve Sheath Tumor Detected by Endoscopic Full‐Thickness Resection for a Gastric Subepithelial Lesion: A Case Report

Mai Fukuda, Masakuni Kobayashi, Miku Maeda, Mamoru Ito et autres

Hybrid nerve sheath tumors (HNSTs) are exceedingly rare in the gastrointestinal tract, particularly in the stomach. We describe a case of an enlarging gastric subepithelial lesion (SEL) that was accurately diagnosed and curatively treated by endoscopic full-thickness resection (EFTR). A 50-year-old woman …

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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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Successful Endoscopic Excision for a Rapidly Enlarging Esophageal Histopathologically Unclassified Subepithelial Lesion: A Case Report

Mai Fukuda, Naoya TADA, Miku Maeda, Koichi Oishi et autres

A 75-year-old man presented with an esophageal subepithelial lesion (SEL) measuring 2.5 cm, first identified over a decade ago. The patient was followed up regularly with computed tomography and endoscopy and remained asymptomatic since then. However, over the past year, the patient …

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Scar incision and endoscopic balloon dilation for severe benign esophageal strictures

Naoya TADA, Akira Dobashi, Mamoru Ito, Toshiki Futakuchi et autres

Background and Aims: Endoscopic balloon dilatation (EBD) is the primary treatment for benign esophageal strictures after endoscopic or surgical resection of esophageal cancer. Resolving these strictures often requires multiple sessions over time and risks perforation. To address these challenges, we developed a …

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Synergistic advantages of combining a traction device with underwater conditions for colonic endoscopic submucosal dissection

Naoya TADA, Naoto Tamai, Mamoru Ito, Toshiki Futakuchi et autres

Several reports have recently highlighted the efficacy of endoscopic submucosal dissection (ESD) in underwater conditions [ 1 ] [ 2 ] [ 3 ]. However, in underwater conditions alone, the traction force remains insufficient because a part of the resected specimen floats …

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IMPACT OF COMPUTER-AIDED DETECTION ON THE CEREBRAL BLOOD FLOW OF ENDOSCOPISTS: A FEASIBILITY STUDY COMPARING EXPERTS AND NON-EXPERTS

Mamoru Ito, Yūko Hasegawa, Mai Fukuda, Naoya TADA et autres

ASSESSMENT OF RED DICHROMATIC IMAGING FOR DIAGNOSING COLORECTAL TUMORS: A PILOT STUDY

Toshiki Futakuchi, Naoto Tamai, Mai Fukuda, Yūko Hasegawa et autres

The Efficacy of Texture and Color Enhancement Imaging Observation in the Detection of Colorectal Lesions: A Multicenter, Randomized Controlled Trial (deTXIon Study)

Naoya Toyoshima, Taku Sakamoto, Kensuke Shinmura, Kinichi Hotta et autres

BACKGROUND & AIMS: Colonoscopy is the gold standard for detecting and resecting adenomas and early-stage cancers to reduce colorectal cancer (CRC) incidence and mortality rates. This study aimed to confirm the superiority of texture and color enhancement imaging (TXI) over white light …

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Efficacy and safety of multi-loop traction device-assisted colorectal endoscopic submucosal dissection: Multicenter randomized clinical trial

Mamoru Ito, Yuko Miura, Yasuhiko Mizuguchi, Hiroto Furuhashi et autres

Abstract The multi-loop traction device (MLTD) facilitates optimal visualization of the submucosa throughout endoscopic submucosal dissection (ESD). This trial aimed to assess the efficacy of MLTD for colorectal ESD. We conducted a multicenter, open-label, randomized controlled trial involving patients with colorectal lesions …

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