Author

Shomei Ryozawa 1

1 Showa University Northern Yokohama Hospital

A PROSPECTIVE MULTICENTER STUDY OF A FULLY-COVERED METAL STENT IN PATIENTS WITH DISTAL MALIGNANT BILIARY OBSTRUCTION: WATCH-2 STUDY.

Yousuke Nakai, Shomei Ryozawa, Hiroyuki Isayama, Ichiro Yasuda, Hitoshi Mochizuki, Hirotoshi Iwano, Hiroyuki Maguchi, Mitsuhiro Kida, Tsuyoshi Mukai, Osamu Hasebe, Yoshinori Igarashi, Keiji Hanada, Atsushi Irisawa, Kei Ito

ANTIREFLUX METAL STENT VS. CONVENTIONAL COVERED METAL STENT FOR NONRESECTABLE DISTAL MALIGNANT BILIARY OBSTRUCTION: A MULTICENTER RANDOMIZED CONTROLLED TRIAL

Tsuyoshi Hamada, Hiroyuki Isayama, Yousuke Nakai, Takuji Iwashita, Yukiko Ito, Tsuyoshi Mukai, Hiroshi Yagioka, Tomotaka Saito, Osamu Togawa, Shomei Ryozawa, Kenji Hirano, Suguru Mizuno, Natsuyo Yamamoto, Hirofumi Kogure, Ichiro Yasuda, Kazuhiko Koike

Assessment of ERCP using a short-type single-balloon enteroscope for patients with surgically altered gastrointestinal anatomy

Yuki Tanisaka, Shomei Ryozawa, Masafumi Mizuide, Maiko Harada, Akashi Fujita, Tomoya Ogawa

ASSESSMENT OF SHORT SINGLE-BALLOON ENTEROSCOPE (SHORT-SBE) FOR THERAPEUTIC ERCP IN PATIENTS WITH ALTERED GASTROINTESTINAL ANATOMY.

Yuki Tanisaka, Shomei Ryozawa, Hirotoshi Iwano, Maiko Harada, Tutomu Kobatake, Shin Arai, Yumi Mashimo

Does endoscopic ultrasound-guided fine needle biopsy using a Franseen needle really offer high diagnostic accuracy and poor puncture performance?

Akashi Fujita, Shomei Ryozawa, Masafumi Mizuide, Yuki Tanisaka, Maiko Harada, Tomoya Ogawa

ENDOCYTOSCOPY CAN PREDICT THE VENOUS AND LYMPHATIC VESSEL INVASION：A RETROSPECTIVE STUDY

Kenichi Takeda, Shinei Kudo, Kunihiko Wakamura, Katsuro Ichimasa, Makoto Kutsukawa, Yuichi Mori, Masashi Misawa, Toyoki Kudo, Takemasa Hayashi, Hideyuki Miyachi, Shomei Ryozawa, Shogo Okoshi, Fumio Ishida, Haruhiro Inoue, Shinichi Kataoka

EVALUATION OF SAFETY OF ENDOSCOPIC SUBMUCOSAL DISSECTION WITHOUT CESSATION OF ANTITHROMBOTIC AGENTS

Yumi Mashimo, Koushuke Shudou, Shin Arai, Shomei Ryozawa

Pancreatobiliary disease

Shomei Ryozawa

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