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Your search keyword '"Keisuke Kurihara"' showing total 3 results
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3 results on '"Keisuke Kurihara"'

1. Acute necrotic disorder of the small intestine post‐coronavirus disease‐2019 vaccination

Author

Tomoyuki Nishimura, Seiji Onogawa, Takuya Yamamoto, Yasuhiro Okuda, Morito Ikeda, Nozomu Matsumoto, Keisuke Kurihara, Akinori Shimizu, Shosuke Kitamura, Yoshio Katamura, Naomichi Hirano, Shingo Itamoto, Masahiro Nakahara, Shuji Yonehara, Fumio Shimamoto, and Keiji Hanada

Subjects
COVID‐19, necrosis, side effects, small intestine, vaccines, Diseases of the digestive system. Gastroenterology, RC799-869
Abstract

Abstract The Pfizer‐BioNTech coronavirus disease 2019 (COVID‐19) vaccine is extensively used worldwide, and its safety has been proven. Herein, we report a case of an acute necrotic disorder in the small intestine post‐COVID‐19 vaccination. The patient developed severe abdominal pain the day after the first vaccination. Contrast‐enhanced computed tomography showed extensive ileum wall thickening and ascites. Colonoscopy revealed a ring‐shaped ulcer and stricture in the terminal ileum. Ileocecal resection was performed, and the patient did not have further episodes of a necrotic disorder in the small intestine. Although it is unknown if this event is associated with vaccination, and this occurrence also does not outweigh the efficacy and safety of the Pfizer‐BioNTech COVID‐19 vaccine, gastroenterologists need to be aware of this rare case, given its noteworthy timing.

Published
2023
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3. A comparison of 4‐Fr with 5‐Fr endoscopic nasopancreatic drainage catheters: A randomized, controlled trial

Author

Ryota Kawamura, Masahiro Serikawa, Kazuaki Chayama, Ken Tsushima, Yumiko Tatsukawa, Eisuke Miyaki, Takashi Ishigaki, Akinori Shimizu, Yasutaka Ishii, Teruo Mouri, Tomofumi Tsuboi, Keisuke Kurihara, and Tamito Sasaki

Subjects
Adult, Male, medicine.medical_specialty, Catheters, Cytodiagnosis, 030230 surgery, Gastroenterology, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Risk Factors, Pancreatic cancer, Internal medicine, Cytology, medicine, Humans, Prospective Studies, Prospective cohort study, Aged, Aged, 80 and over, Cholangiopancreatography, Endoscopic Retrograde, Hepatology, Intraductal papillary mucinous neoplasm, business.industry, Incidence (epidemiology), Pancreatic Ducts, Equipment Design, Middle Aged, medicine.disease, Surgery, Pancreatic Neoplasms, Catheter, Treatment Outcome, Pancreatitis, Pancreatic juice, Drainage, Female, 030211 gastroenterology & hepatology, business, Follow-Up Studies
Abstract

Background and Aim Although endoscopic nasopancreatic drainage (ENPD) is useful for collecting samples for pancreatic juice cytology and for treating leakage of pancreatic juice and occlusive pancreatitis, placement of the ENPD catheter is associated with complications such as post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP). We investigated whether an ENPD catheter with a smaller diameter could reduce the incidence of complications. Methods Patients requiring placement of an ENPD catheter (n = 254) were enrolled and randomly assigned to one of two catheter-size groups: the 4-Fr group or the 5-Fr group. The incidence of PEP, cholangitis, and spontaneous catheter displacement and the suitability of pancreatic juice cytology samples were compared between groups. In addition, univariate and multivariate analyses were conducted on factors associated with PEP. Results The incidence of PEP was significantly lower in the 4-Fr group compared with the 5-Fr group (4.1% vs 12.4%, respectively; P = 0.021). The rate of cholangitis and spontaneous catheter displacement and the suitability of pancreatic juice cytology samples did not differ between groups. Multivariate analysis revealed that the risk of PEP was 3.7 times higher when using a 5-Fr catheter than when using a 4-Fr catheter (P = 0.019). In addition, the risk of PEP was 4.1 times higher in patients with an intraductal papillary mucinous neoplasm than in those without (P = 0.0049) and 4.6 times higher in patients aged

Published
2016
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