Kazumasa Nagai

25PUBLICATIONS
23CO-AUTHORS
Medical devicesLasers and quantum electronicsElemental semiconductorsElectrochemical energy storage and conversionGastroenterology and hepatology
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Publications (25)

|Jul 19, 2026
Prospective Clinical Evaluation of a Novel Repositionable Plastic Stent for Endosonography-Guided Hepaticogastrostomy With or Without Antegrade Stenting (With Videos).

|Apr 24, 2026
Ultra-slim pancreatoscopy-guided laser lithotripsy for retrieval of a kinked guidewire caused by a pancreatic duct stone.

|Feb 13, 2026
Novel one-step deployment of Y-shaped metal stent: no more stent-in-stent or side-by-side.

Kazumasa Nagai, Takao Itoi, Ryosuke Tonozuka

|Jan 20, 2026
Effectiveness of immediate contrast-enhanced evaluation after endoscopic ultrasound-guided ethanol injection for a pancreatic neuroendocrine tumor.

Shuntaro Mukai, Atsushi Sofuni, Takayoshi Tsuchiya

|Dec 16, 2025
Clinical Practice Guidelines for Peroral Cholangioscopy.

Kazumasa Nagai, Akio Katanuma, Shomei Ryozawa

|Dec 09, 2025
Clinical Application of Ultra-Slim Peroral Cholangioscopy for a Giant Common Bile Duct Stone: An Initial Experience.

Yuta Kanazawa, Kazumasa Nagai, Noriyuki Hirakawa

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Frequent Collaborators

17 joint publications

Ryosuke Tonozuka

15 joint publications

Shuntaro Mukai

14 joint publications

Takayoshi Tsuchiya

10 joint publications

Kenjiro Yamamoto