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학술저널
저자정보
Jung Eun Suk (Division of Gastroenterology Department of Internal Medicine Hallym University Dongtan Sacred Heart) 이상표 (한림대학교) 계세협 (한림대학교) Kim Jung Han (Division of Hematology-Oncology Hallym University Kangnam Sacred Heart Hospital Hallym University C) 김형수 (한림대학교) 장현주 (한림대학교)
저널정보
거트앤리버 발행위원회 Gut and Liver Gut and Liver 제15권 제5호
발행연도
2021.9
수록면
732 - 741 (10page)
DOI
10.5009/gnl20249

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Background/Aims: The diagnosis of small bowel Crohn’s disease with negative ileocolonoscopic findings has been challenging. Fecal calprotectin (FC) has been used to detect colonic inflammation, but its efficacy for detecting small bowel inflammation is less established. We performed an updated meta-analysis to evaluate the diagnostic accuracy of FC to detect active small bowel inflammation observed during capsule endoscopy. Methods: We conducted a systematic literature search for studies that evaluated the correlation between small bowel inflammation and FC in patients with suspected/established Crohn’s disease. We calculated the pooled sensitivity, specificity, and diagnostic odds ratios (DORs) and constructed hierarchical summary receiver operating characteristic curves for FC cutoffs of 50, 100, and 200 μg/g. Results: Fourteen studies were eligible for the final analysis. The DORs of all FC cutoffs were significant. The highest DOR was observed at 100 μg/g (sensitivity, 0.73; specificity, 0.73; and DOR, 7.89) and was suggested as the optimal diagnostic cutoff. If we analyzed only studies that included patients with suspected Crohn’s disease, the DOR was 8.96. If we analyzed only studies that included patients with a Lewis score ≥135 as a diagnostic criterion for active disease, the DOR was 10.90. Conclusions: FC has significant diagnostic accuracy for detecting small bowel inflammation, and an FC cutoff of 100 μg/g can be used as a tool to screen for small bowel Crohn’s disease.

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