Keiya Okamura

Sapporo, Japan

Last Updated: 09/26/2026

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Found 25 publications

The "garden eel" technique for endoscopic treatment of hepatolithiasis beyond multiple acutely angled sections with strictures.

The "garden eel" technique for endoscopic treatment of hepatolithiasis beyond multiple acutely angled sections with strictures.

Journal: Endoscopy

Published: August 08, 2025

Impact of ERCC1 on the outcomes of chemotherapy in advanced biliary tract cancer.

Impact of ERCC1 on the outcomes of chemotherapy in advanced biliary tract cancer.

Journal: Scientific reports

Published: January 01, 2025

Prospective multicenter surveillance study of branch-duct intraductal papillary mucinous neoplasm of the pancreas; risk of dual carcinogenesis.

Prospective multicenter surveillance study of branch-duct intraductal papillary mucinous neoplasm of the pancreas; risk of dual carcinogenesis.

Journal: Pancreatology : official journal of the International Association of Pancreatology (IAP) ... [et al.]

Published: June 26, 2024

The "squeezing with forceps" method for emergency endoscopic removal of an impacted pancreatic stone in the papilla of a patient on antithrombotic therapy.

The "squeezing with forceps" method for emergency endoscopic removal of an impacted pancreatic stone in the papilla of a patient on antithrombotic therapy.

Journal: Endoscopy

Published: February 24, 2023

Effect of systemic inflammatory response on induction chemotherapy followed by chemoradiotherapy for locally advanced pancreatic cancer: an exploratory subgroup analysis on systemic inflammatory response in JCOG1106.

Effect of systemic inflammatory response on induction chemotherapy followed by chemoradiotherapy for locally advanced pancreatic cancer: an exploratory subgroup analysis on systemic inflammatory response in JCOG1106.

Journal: Japanese journal of clinical oncology

Published: January 09, 2023

Tunneling technique using a device delivery system for the treatment of pancreaticopleural fistula due to severe downstream pancreatic duct strictures.

Tunneling technique using a device delivery system for the treatment of pancreaticopleural fistula due to severe downstream pancreatic duct strictures.

Journal: Endoscopy

Published: October 28, 2022

Eosinophilic Cholangitis Without Biliary Stricture After Cactus Spine Injury.

Eosinophilic Cholangitis Without Biliary Stricture After Cactus Spine Injury.

Journal: The American journal of gastroenterology

Published: March 13, 2022

The "pulling back method" for emergent transpapillary biliary drainage in a patient with a severe malignant duodenal stricture.

The "pulling back method" for emergent transpapillary biliary drainage in a patient with a severe malignant duodenal stricture.

Journal: Endoscopy

Published: December 21, 2021

Bile Duct Ulcer due to a Migrated Pancreatic Stent after Pancreatoduodenectomy.

Bile Duct Ulcer due to a Migrated Pancreatic Stent after Pancreatoduodenectomy.

Journal: GE Portuguese journal of gastroenterology

Published: November 05, 2021

Recanalization of a completely occluded biliary metal stent using argon plasma coagulation and electrohydraulic lithotripsy.

Recanalization of a completely occluded biliary metal stent using argon plasma coagulation and electrohydraulic lithotripsy.

Journal: Journal of hepato-biliary-pancreatic sciences

Published: November 04, 2021

Endoscopic Snapshots of a Sealed Metal Stent: An Unusual Complication after Novel Antireflux Covered Metal Stent Placement in the Hepaticogastrostomy.

Endoscopic Snapshots of a Sealed Metal Stent: An Unusual Complication after Novel Antireflux Covered Metal Stent Placement in the Hepaticogastrostomy.

Journal: GE Portuguese journal of gastroenterology

Published: October 31, 2021

Downstream balloon dilation technique for endoscopic removal of an impacted pancreatic duct stone after pancreatoduodenectomy.

Downstream balloon dilation technique for endoscopic removal of an impacted pancreatic duct stone after pancreatoduodenectomy.

Journal: Endoscopy

Published: October 16, 2021

Showing 1-12 of 25

Last Updated: 09/26/2026