Publications by authors named "Ryosuke Tonozuka"

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Endoscopic Step-up Approach for Walled-off Necrosis After Acute Pancreatitis.
Shuntaro Mukai, Atsushi Sofuni, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

DEN Open· April 2026

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Comparison of the Usefulness of Covered and Uncovered Laser-cut Metal Stents.
Toshio Fujisawa, Masao Toki, Kei Saito, Yuta Hasegawa, Eisuke Iwasaki, Ryosuke Tonozuka

DEN Open· April 2026

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Technical tip: endoscopic internalization by cutting the drainage tube after endoscopic ultrasound-guided naso-gallbladder drainage for acute cholecystitis.
Noriyuki Hirakawa, Shuntaro Mukai, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Endoscopy· December 2025

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Endoscopic retrieval of a proximally migrated pancreatic stent utilizing a basket through a catheter in surgically altered anatomy: "Basket-through-the-catheter" technique.
Haruka Toyonaga, Takuya Takayama, Tatsuya Nakagawa, Masahiro Orino, Ryosuke Tonozuka

Endoscopy· December 2025

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Percutaneous cyanoacrylate injection with endoscopic closure using an over-the-scope clip for refractory duodenocutaneous fistula.
Kento Shionoya, Shuntaro Mukai, Atsushi Sofuni, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Endoscopy· December 2025

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One-step removal of a migrated biliary plastic stent using a novel long thin dilating balloon catheter.
Noriyuki Hirakawa, Kenjiro Yamamoto, Takayoshi Tsuchiya, Ryosuke Tonozuka, Shuntaro Mukai

Endoscopy· December 2025

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Endoscopic ultrasound-guided transpapillary versus transluminal biliary stenting: randomized comparison of long-term stent patency.
Vinay Dhir, Vivek Kumar Singh, Sundeep Lakhtakia, Rajesh Puri, Praveer Rai, Ryosuke Tonozuka

Endoscopy· December 2025

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Endoluminal radiofrequency ablation for ingrowth occlusion after endoscopic ultrasound-guided hepaticogastrostomy with bridging stent placement.
Kenjiro Yamamoto, Takayoshi Tsuchiya, Ryosuke Tonozuka, Shuntaro Mukai, Hiroyuki Kojima

Endoscopy· December 2025

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Clinical Application of Ultra-Slim Peroral Cholangioscopy for a Giant Common Bile Duct Stone: An Initial Experience.
Yuta Kanazawa, Kazumasa Nagai, Noriyuki Hirakawa, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· December 2025

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A novel plastic stent to prevent dislocation after endoscopic ultrasound-guided gallbladder drainage.
Kazuki Hama, Hiroyuki Kojima, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Endoscopy· December 2025

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Correction: Endoscopic ultrasound-guided transpapillary versus transluminal biliary stenting: randomized comparison of long-term stent patency.
Vinay Dhir, Vivek Kumar Singh, Sundeep Lakhtakia, Rajesh Puri, Praveer Rai, Ryosuke Tonozuka

Endoscopy· December 2025

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Impact of a Thinner Snare Wire With Optimal Electrosurgical Unit Settings on the Risk of Delayed Bleeding After Endoscopic Papillectomy: A Propensity Score-Matched Analysis (With Video).
Kenjiro Yamamoto, Takao Itoi, Takayoshi Tsuchiya, Yuki Joyama, Reina Tanaka, Ryosuke Tonozuka

Dig Endosc· November 2025

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Initial Experience Using the Over-The-Scope-Grasper for Endoscopic Necrosectomy in Walled-Off Necrosis.
Yasunosuke Akita, Kazumasa Nagai, Noriyuki Hirakawa, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· November 2025

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Identification of the source of biliary bleeding using a novel ultrathin-type peroral cholangioscope.
Kento Shionoya, Ryosuke Tonozuka, Takao Itoi

Dig Endosc· October 2025

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A useful technique using a traction device and a rotatable sphincterotome for difficult biliary cannulation of an intradiverticular papilla.
Kyoko Asano, Shuntaro Mukai, Takao Itoi, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· August 2025

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The impact of the novel EUS scope and ultrasonographic system for diagnosis and therapy in patients with pancreatobiliary diseases (videos).
Hiroyuki Kojima, Takao Itoi, Atsushi Sofuni, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· July 2025

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Minimally invasive endoscopic ultrasound-guided pancreatic duct rendezvous with a 22-gauge needle and a 0.018-inch guidewire.
Shuntaro Mukai, Takao Itoi, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· July 2025

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Verification in an animal study of the appropriate settings for a novel radiofrequency generator in radiofrequency ablation therapy for residual intraductal lesions after endoscopic papillectomy (with video).
Kenjiro Yamamoto, Takao Itoi, Atsushi Sofuni, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Dig Endosc· June 2025

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The efficacy of 3D hologram support with mixed-reality technique in pancreatobiliary endoscopy.
Kazumasa Nagai, Maki Sugimoto, Takao Itoi, Hirohito Minami, Takayoshi Tsuchiya, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· June 2025

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Giant pancreatic stentolith after chronic transgastric pancreatic duct drainage.
Kazuki Hama, Shuntaro Mukai, Takayoshi Tsuchiya, Ryosuke Tonozuka, Kenjiro Yamamoto

VideoGIE· June 2025

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Intraprocedural mixed-reality hologram support in endoscopic retrograde cholangiography (ERC) for bile leaks.
Hirohito Minami, Kazumasa Nagai, Maki Sugimoto, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

J Hepatobiliary Pancreat Sci· April 2025

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Endoscopic radical treatment of a giant ampullary tumor with biliopancreatic duct extensions using multimodality approaches.
Kazuki Hama, Kenjiro Yamamoto, Takayoshi Tsuchiya, Ryosuke Tonozuka, Shuntaro Mukai

VideoGIE· April 2025

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Evaluating the Usefulness of the Blood Apolipoprotein A2 Isoform Index for Pancreatic Cancer Diagnosis.
Kento Shionoya, Atsushi Sofuni, Shuntaro Mukai, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Cancers (Basel)· March 2025

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Endoscopic ultrasound-guided drainage of bilomas in difficult-to-puncture locations using a sheath-assisted puncture technique.
Kazuki Hama, Yukitoshi Matsunami, Takayoshi Tsuchiya, Reina Tanaka, Ryosuke Tonozuka

Endoscopy· February 2025

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Initial Use Experience of Durvalumab Plus Gemcitabine and Cisplatin for Advanced Biliary Tract Cancer in a Japanese Territory Center.
Kento Shionoya, Atsushi Sofuni, Shuntaro Mukai, Yoshiya Yamauchi, Takayoshi Tsuchiya, Ryosuke Tonozuka

Cancers (Basel)· January 2025

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