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논문 기본 정보

자료유형
학술저널
저자정보
Kensuke Sakurai (Hokkaido University Hospital) Takehiko Katsurada (Department of Gastroenterology and Hepatology Hokkaido University Hospital) Mutsumi Nishida (Division of Laboratory and Transfusion Medicine Hokkaido University Hospital) Satomi Omotehara (Hokkaido University Hospital) Shinya Fukushima (Hokkaido University Hospital) Shinsuke Otagiri (Hokkaido University Hospital) Kazunori Nagashima (Hokkaido University Hospital) Reizo Onishi (Hokkaido University Hospital) Ryo Takagi (Hokkaido University Hospital) Yoshito Komatsu (Hokkaido University Hospital) Sakamoto Naoya (Department of Gastroenterology and Hepatology Graduate School of Medicine and Faculty of Medicine Hokkaido University Sapporo Japan.)
저널정보
대한장연구학회 Intestinal research Intestinal research Vol.21 No.1
발행연도
2023.1
수록면
126 - 136 (11page)
DOI
10.5217/ir.2021.00166

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Background/Aims: The usefulness of ultrasonography (US) in diseases of the gastrointestinal tract has been reported recently. This prospective study aimed to determine the features of US findings in immune-mediated colitis (IMC), an adverse event induced by immune checkpoint inhibitor, and examine the correlation between US findings, colonoscopy (CS) findings, and severity of colitis. Methods: We studied patients examined using CS and US upon suspicion of IMC in Hokkaido University Hospital between April 2018 and February 2021. Endoscopic findings of IMC were assessed using the Ulcerative Colitis Endoscopic Index of Severity (UCEIS). The severity of US findings in IMC was evaluated using US grade, which is the ultrasonographic grading scale in ulcerative colitis. Bowel wall thickness and the intensity of the color Doppler signal were also analyzed. Severity of colitis was evaluated using Common Terminology Criteria for Adverse Events (CTCAE) grade version 5. Results: Fourteen patients with IMC were enrolled. The US findings were bowel wall thickening, loss of stratification, ulceration and increased blood flow signal. The US grade was moderately correlated with the UCEIS (r=0.687, P=0.009) and CTCAE grade (r=0.628, P=0.035). Bowel wall thickness and UCEIS (r=0.628, P=0.020), as well as color Doppler signal grade and CTCAE grade (r=0.724, P=0.008), were significantly correlated. Conclusions: US findings in IMC were mainly similar to those of ulcerative colitis, but there were some findings that were characteristic only of IMC. Significant correlation was found between US findings, CS findings, and severity of colitis. Hence, US could be useful for the evaluation of IMC.

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