Toshiharu Ueki

Pancreatitis Following Biliary Endoscopic Retrograde Cholangiopancreatography for Common Bile Duct Stones in Japan: A Multicenter Prospective Cohort Study

Toru Maruo, Koichi Fujita, Shujiro Yazumi, Hiroko Nebiki et autres

Objectives: Post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) is an adverse event of ERCP-related procedures. The present study aimed to evaluate the incidence of PEP in patients with an intact papilla who underwent ERCP for common bile duct stones and identify risk factors …

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Clinical outcomes of endoscopic papillectomy for ampullary adenoma and adenocarcinoma: a multicenter retrospective study in Japan

Eisuke Iwasaki, Hiroki Kawashima, Yoshihisa Takada, Kazuo Hara et autres

BACKGROUND AND AIMS: Endoscopic papillectomy (EP) is a minimally invasive treatment for ampullary epithelial tumors. However, clinical outcomes and predictors of recurrence remain unclear. METHODS: We conducted a multicenter, retrospective cohort study at 22 tertiary centers in Japan, including patients who underwent …

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Prospective Questionnaire Survey on Adherence to Oral 5‐Aminosalicylic Acid in Patients With Ulcerative Colitis

Tsuyoshi Beppu, Fumihito Hirai, Kensei Ohtsu, Masahiro Kishi et autres

ABSTRACT Background Adherence to 5‐aminosalicylic acid (5‐ASA), an anchor drug for ulcerative colitis (UC), affects remission maintenance. This study aimed to investigate the current status of adherence to 5‐ASA and identify the factors associated with adherence. Methods We enrolled UC patients whose …

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Clinical impact of epithelial types on postoperative outcomes for intraductal papillary mucinous neoplasms: a multicenter retrospective study

Daiki Yamashige, Susumu Hijioka, Yasuhiro Shimizu, Akio Yanagisawa et autres

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Japanese nationwide prospective observational study on early pancreatic cancer screening in outpatients using a comprehensive scoring system and comparison with Western screening methods (EPSS-1)

Ryota Sagami, Kentaro Yamao, Akinori Shimizu, Hidefumi Nishikiori et autres

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Proposal of classification and terminology of interventional endoscopic ultrasonography/endosonography

Hiroyuki Isayama, Yousuke Nakai, Koji Matsuda, Yoshihide Kanno et autres

Interventional endoscopic ultrasonography/endosongraphy (I-EUS) procedures have rapidly evolved since their introduction three decades ago; however, the classification and terminology for these procedures remain unstandardized. To address this, the Subcommittee for Terminology of I-EUS in the Japan Gastroenterological Endoscopy Society was established to …

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Feasibility and safety of EUS-guided biliary drainage in inexperienced centers: a multicenter study in southwest Japan

Takehiko Koga, Yusuke Ishida, Shunpei Hashigo, Yuzo Shimokawa et autres

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

Takao Ohtsuka, Hiroyuki Maguchi, Shoji Tokunaga, Susumu Hijioka et autres

BACKGROUND: The natural history of branch-duct intraductal papillary mucinous cystic neoplasms (BD-IPMNs) in the pancreas remains unclear. This study aimed to answer this clinical question by focusing on the development of concomitant pancreatic ductal adenocarcinomas (cPDAC). METHODS: The Japan Pancreas Society conducted …

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Clinicopathological and endoscopic features of Helicobacter pylori infection-negative gastric cancer in Japan: a retrospective study

Kentaro Imamura, Kenshi Yao, Satoshi Nimura, Takao Kanemitsu et autres

BACKGROUND/AIMS: Helicobacter pylori infection-negative gastric cancer (HPNGC) has not been systematically investigated in consecutive patients. Hence, this study aimed to investigate the clinicopathological and endoscopic features of HPNGC. METHODS: This single-center retrospective study selected participants from patients with gastric cancer who were …

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Is multidisciplinary treatment effective for invasive intraductal papillary mucinous carcinoma?

Seiko Hirono, Ryota Higuchi, Goro Honda, Satoshi Nara et autres

Abstract Background Surgical resection is standard treatment for invasive intraductal papillary mucinous carcinoma (IPMC); however, impact of multidisciplinary treatment on survival including postoperative adjuvant therapy (AT), neoadjuvant therapy (NAT), and treatment for recurrent lesions is unclear. We investigated the effectiveness of multidisciplinary …

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Role of advanced endoscopy in the management of inflammatory digestive diseases (pancreas and biliary tract)

Toshiharu Ueki, Toru Maruo, Yoshinori Igarashi, Akira Yamamiya et autres

The progress of endoscopic diagnosis and treatment for inflammatory diseases of the biliary tract and pancreas have been remarkable. Endoscopic ultrasonography (EUS) and EUS-elastography are used for the diagnosis of early chronic pancreatitis and evaluation of endocrine and exocrine function in chronic …

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Is Systolic Blood Pressure before Endoscopic Sphincterotomy Associated with Bleeding during Endoscopic Sphincterotomy for Choledocholithiasis?

Hiroaki Hiratsuka, Toru Maruo, Kaoru Ezaki, Tetsuhiro ATONO et autres

Introduction: Endoscopic treatment include endoscopic sphincterotomy (EST) is the first-line therapy for managing choledocholithiasis in many institutions.Although several studies have reported the risk factors for bleeding due to EST, there were no studies that investigated bleeding during EST and its prevention.Here, we …

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