Hisashi Doyama

Japan

Last Updated: 09/26/2026

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Found 122 publications

Innovative Therapeutic Endoscopy of the Upper Gastrointestinal Tract: Review of the Japan Gastroenterological Endoscopy Society Core Sessions.

Innovative Therapeutic Endoscopy of the Upper Gastrointestinal Tract: Review of the Japan Gastroenterological Endoscopy Society Core Sessions.

Journal: DEN open

Published: July 01, 2026

White Globe Appearance Is an Endoscopic Predictor of Metachronous Multiple Gastric Cancers.

White Globe Appearance Is an Endoscopic Predictor of Metachronous Multiple Gastric Cancers.

Journal: DEN open

Published: December 26, 2025

Diagnostic performance of magnifying endoscopy with third-generation narrow-band imaging for early gastric cancer: post hoc analysis of a randomized trial (3G detection trial).

Diagnostic performance of magnifying endoscopy with third-generation narrow-band imaging for early gastric cancer: post hoc analysis of a randomized trial (3G detection trial).

Journal: Journal of gastroenterology

Published: November 25, 2025

Lymph node metastatic recurrence detected by an increased serum carcinoembryonic antigen concentration after endoscopic submucosal dissection for esophageal cancer with invasion to the lamina propria mucosae.

Lymph node metastatic recurrence detected by an increased serum carcinoembryonic antigen concentration after endoscopic submucosal dissection for esophageal cancer with invasion to the lamina propria mucosae.

Journal: Clinical journal of gastroenterology

Published: October 03, 2025

The use of diluted epinephrine during gastric endoscopic submucosal dissection: an international randomized controlled trial.

The use of diluted epinephrine during gastric endoscopic submucosal dissection: an international randomized controlled trial.

Journal: Gastrointestinal endoscopy

Published: September 13, 2025

Low-dose aspirin continuation during gastric ESD in patients with low thrombotic risk: a randomized trial.

Low-dose aspirin continuation during gastric ESD in patients with low thrombotic risk: a randomized trial.

Journal: The American journal of gastroenterology

Published: May 28, 2025

Endoscopic balloon dilation with steroid injection versus radial incision and cutting with steroid injection for refractory esophageal anastomotic stricture: a randomized study.

Endoscopic balloon dilation with steroid injection versus radial incision and cutting with steroid injection for refractory esophageal anastomotic stricture: a randomized study.

Journal: Endoscopy

Published: April 08, 2025

Successful intubation of the periampullary diverticulum in post-Billroth II method-reconstructed intestinal tract using clip-and-snare method with a pre-looping technique.

Successful intubation of the periampullary diverticulum in post-Billroth II method-reconstructed intestinal tract using clip-and-snare method with a pre-looping technique.

Journal: Clinical endoscopy

Published: February 23, 2025

Correction: A nonrandomized, single-arm confirmatory trial of expanded endoscopic submucosal dissection indication for undifferentiated early gastric cancer: Japan Clinical Oncology Group study (JCOG1009/1010).

Correction: A nonrandomized, single-arm confirmatory trial of expanded endoscopic submucosal dissection indication for undifferentiated early gastric cancer: Japan Clinical Oncology Group study (JCOG1009/1010).

Journal: Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

Published: February 13, 2025

A prospective, randomized, double-blind, placebo-controlled trial of the Kampo formula daiobotanpito combined with antibiotic therapy for acute diverticulitis.

A prospective, randomized, double-blind, placebo-controlled trial of the Kampo formula daiobotanpito combined with antibiotic therapy for acute diverticulitis.

Journal: Scientific reports

Published: December 13, 2024

Radiation Exposure with Self-Expandable Metallic Stent versus Transanal Decompression Tube for Malignant Colorectal Obstruction: A Post Hoc Propensity Score Matched Analysis.

Radiation Exposure with Self-Expandable Metallic Stent versus Transanal Decompression Tube for Malignant Colorectal Obstruction: A Post Hoc Propensity Score Matched Analysis.

Journal: Journal of clinical medicine

Published: August 20, 2024

Advanced diagnostic endoscopy in the upper gastrointestinal tract: Review of the Japan Gastroenterological Endoscopic Society core sessions.

Advanced diagnostic endoscopy in the upper gastrointestinal tract: Review of the Japan Gastroenterological Endoscopic Society core sessions.

Journal: DEN open

Published: February 15, 2024

Showing 1-12 of 122

Last Updated: 09/26/2026