Osamu Togawa

Tokyo, 1588531, Japan

Last Updated: 09/26/2026

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Found 33 publications

Unilateral versus Bilateral Endoscopic Nasobiliary Drainage and Subsequent Metal Stent Placement for Unresectable Malignant Hilar Obstruction: A Multicenter Randomized Controlled Trial.

Unilateral versus Bilateral Endoscopic Nasobiliary Drainage and Subsequent Metal Stent Placement for Unresectable Malignant Hilar Obstruction: A Multicenter Randomized Controlled Trial.

Journal: Journal of clinical medicine

Published: December 03, 2020

Multicenter randomized trial of endoscopic papillary large balloon dilation without sphincterotomy versus endoscopic sphincterotomy for removal of bile duct stones: MARVELOUS trial.

Multicenter randomized trial of endoscopic papillary large balloon dilation without sphincterotomy versus endoscopic sphincterotomy for removal of bile duct stones: MARVELOUS trial.

Journal: Endoscopy

Published: April 17, 2020

A randomized-controlled trial of early endotherapy versus wait-and-see policy for mild symptomatic pancreatic stones in chronic pancreatitis.

A randomized-controlled trial of early endotherapy versus wait-and-see policy for mild symptomatic pancreatic stones in chronic pancreatitis.

Journal: European journal of gastroenterology & hepatology

Published: June 01, 2019

Antireflux covered metal stent for nonresectable distal malignant biliary obstruction: Multicenter randomized controlled trial.

Antireflux covered metal stent for nonresectable distal malignant biliary obstruction: Multicenter randomized controlled trial.

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

Published: December 20, 2018

Early pancreatic stent placement in wire-guided biliary cannulation: A multicenter retrospective study.

Early pancreatic stent placement in wire-guided biliary cannulation: A multicenter retrospective study.

Journal: Journal of gastroenterology and hepatology

Published: June 08, 2018

A Multicenter Open-Label Randomized Controlled Trial of Pancreatic Enzyme Replacement Therapy in Unresectable Pancreatic Cancer.

A Multicenter Open-Label Randomized Controlled Trial of Pancreatic Enzyme Replacement Therapy in Unresectable Pancreatic Cancer.

Journal: Pancreas

Published: June 01, 2018

Preoperative biliary drainage using a fully covered self-expandable metallic stent for pancreatic head cancer: A prospective feasibility study.

Preoperative biliary drainage using a fully covered self-expandable metallic stent for pancreatic head cancer: A prospective feasibility study.

Journal: Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association

Published: April 14, 2018

International study of endoscopic management of distal malignant biliary obstruction combined with duodenal obstruction.

International study of endoscopic management of distal malignant biliary obstruction combined with duodenal obstruction.

Journal: Scandinavian journal of gastroenterology

Published: October 07, 2017

A 19-Gauge Histology Needle Versus a 19-Gauge Standard Needle in Endoscopic Ultrasound-Guided Fine-Needle Aspiration for Solid Lesions: A Multicenter Randomized Comparison Study (GREATER Study).

A 19-Gauge Histology Needle Versus a 19-Gauge Standard Needle in Endoscopic Ultrasound-Guided Fine-Needle Aspiration for Solid Lesions: A Multicenter Randomized Comparison Study (GREATER Study).

Journal: Digestive diseases and sciences

Published: September 05, 2017

Multicenter study of endoscopic preoperative biliary drainage for malignant hilar biliary obstruction: E-POD hilar study.

Multicenter study of endoscopic preoperative biliary drainage for malignant hilar biliary obstruction: E-POD hilar study.

Journal: Journal of gastroenterology and hepatology

Published: August 17, 2017

Multicenter retrospective and comparative study of 5-minute versus 15-second endoscopic papillary balloon dilation for removal of bile duct stones.

Multicenter retrospective and comparative study of 5-minute versus 15-second endoscopic papillary balloon dilation for removal of bile duct stones.

Journal: Endoscopy international open

Published: March 02, 2017

Gemcitabine and S-1 versus gemcitabine and cisplatin treatment in patients with advanced biliary tract cancer: a multicenter retrospective study.

Gemcitabine and S-1 versus gemcitabine and cisplatin treatment in patients with advanced biliary tract cancer: a multicenter retrospective study.

Journal: Investigational new drugs

Published: November 30, 2016

Showing 1-12 of 33

Last Updated: 09/26/2026