Akiyoshi Ishiyama

Tokyo, Japan

Last Updated: 09/26/2026

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Found 104 publications

Clinical Outcomes of Antrectomy for Patients With Multiple Type I Gastric Neuroendocrine Tumors: A Case Series.

Clinical Outcomes of Antrectomy for Patients With Multiple Type I Gastric Neuroendocrine Tumors: A Case Series.

Journal: DEN open

Published: January 20, 2026

A Randomized Controlled Phase 3 Trial of Oral Prednisolone Administration Versus Local Triamcinolone Injection Therapy for Esophageal Stricture Prevention After Extensive Endoscopic Submucosal Dissection (JCOG1217).

A Randomized Controlled Phase 3 Trial of Oral Prednisolone Administration Versus Local Triamcinolone Injection Therapy for Esophageal Stricture Prevention After Extensive Endoscopic Submucosal Dissection (JCOG1217).

Journal: Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society

Published: January 04, 2026

Pharyngeal endoscopic submucosal dissection: detection, technique, and considerations for Western adoption.

Pharyngeal endoscopic submucosal dissection: detection, technique, and considerations for Western adoption.

Journal: iGIE : innovation, investigation and insights

Published: December 04, 2025

Treatment outcomes of low-radial-force self-expandable metal stent placement and palliative radiotherapy for unresectable advanced esophageal squamous cell carcinoma with dysphagia.

Treatment outcomes of low-radial-force self-expandable metal stent placement and palliative radiotherapy for unresectable advanced esophageal squamous cell carcinoma with dysphagia.

Journal: Esophagus : official journal of the Japan Esophageal Society

Published: November 29, 2025

The poorly differentiated component in endoscopic biopsy predicts submucosal invasion in superficial Barrett's esophageal adenocarcinoma.

The poorly differentiated component in endoscopic biopsy predicts submucosal invasion in superficial Barrett's esophageal adenocarcinoma.

Journal: Esophagus : official journal of the Japan Esophageal Society

Published: July 28, 2025

Predictive Factors for Technical Difficulty During Endoscopic Submucosal Dissection of Superficial Barrett's Esophageal Adenocarcinoma.

Predictive Factors for Technical Difficulty During Endoscopic Submucosal Dissection of Superficial Barrett's Esophageal Adenocarcinoma.

Journal: Journal of gastroenterology and hepatology

Published: July 23, 2025

Utility and safety of near-infrared fluorescent marking clips for tumor localization in robot-assisted laparoscopic gastric cancer surgery.

Utility and safety of near-infrared fluorescent marking clips for tumor localization in robot-assisted laparoscopic gastric cancer surgery.

Journal: Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract

Published: July 18, 2025

Evaluating the Additional Value of Endoscopic Ultrasonography for Depth Assessment of Esophagogastric Junction Adenocarcinoma.

Evaluating the Additional Value of Endoscopic Ultrasonography for Depth Assessment of Esophagogastric Junction Adenocarcinoma.

Journal: DEN open

Published: March 26, 2025

Differences in Clinical Characteristics Between Missed and Detected Laryngopharyngeal Cancers.

Differences in Clinical Characteristics Between Missed and Detected Laryngopharyngeal Cancers.

Journal: Journal of gastroenterology and hepatology

Published: January 28, 2025

Randomized controlled trial of an artificial intelligence diagnostic system for the detection of esophageal squamous cell carcinoma in clinical practice.

Randomized controlled trial of an artificial intelligence diagnostic system for the detection of esophageal squamous cell carcinoma in clinical practice.

Journal: Endoscopy

Published: September 24, 2024

Comprehensive pathological evaluation of risk factors for metastasis after endoscopic resection of superficial esophageal squamous cell carcinoma.

Comprehensive pathological evaluation of risk factors for metastasis after endoscopic resection of superficial esophageal squamous cell carcinoma.

Journal: Journal of gastroenterology

Published: July 05, 2024

Four cases of early stage poorly differentiated non-ampullary duodenal adenocarcinoma: a case report.

Four cases of early stage poorly differentiated non-ampullary duodenal adenocarcinoma: a case report.

Journal: Clinical journal of gastroenterology

Published: May 01, 2024

Showing 1-12 of 104

Last Updated: 09/26/2026