Long-term neoplastic risk associated with colorectal strictures in Crohn’s disease: a multicenter study - Université de Picardie Jules Verne Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2024

Long-term neoplastic risk associated with colorectal strictures in Crohn’s disease: a multicenter study

Résumé

Introduction While the occurrence of colonic stricture in Crohn’s disease (CD) always raises concerns about the risk of cancer, the neoplastic risk associated with its stricture remains poorly known. Methods All consecutive patients with colorectal stricture complicating CD in 3 academic centers between 1993 and 2022 were included in a retrospective cohort. We collected clinical, endoscopic, surgical, and pathology data and information on outcomes. Factors associated with neoplastic stricture were investigated by logistic regression. Results A total of 88 patients (median age, 25 (IQR, 19-37) years and median disease duration 12 (4-19) years) with 96 colorectal strictures were included. Strictures were non-passable by the scope in 61.4% (n=54) of cases, 70.5% (n=62) were ulcerated, and 62.5% (n=55) were symptomatic. Colonic resection and endoscopic balloon dilatation were needed in 47.7% (n=42) and 28.6% (n=12) of patients, respectively. After a median follow-up of 21.5 months (IQR [5.5-46.5]), 7 (8%) patients were diagnosed with neoplasia at the colonic stricture site (colonic adenocarcinoma, n=5, neuroendocrine carcinoma, n=1 and B-cell lymphoproliferative neoplasia, n=1), with a median stricture duration at colorectal neoplasia diagnosis of 0 month (IQR [0.0-5.5]). While neoplastic strictures were diagnosed in older patients (58 vs 39 years), with longer disease duration (18 vs 11 years) and frequent obstructive symptoms (57.1% vs 11.1%), no patient or stricture related factor was associated with neoplastic stricture in multivariate analysis. Conclusion Eight percent of patients with colonic stricture complicating CD developed colorectal cancer. Colorectal cancer and stricture were often diagnosed at the same time and we did not report malignant stricture after one year of follow up.
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Dates et versions

hal-04578209 , version 1 (16-05-2024)

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Thomas Hunaut, Laurent Peyrin-Biroulet, Antoine Le Bozec, Adeline Germain, Corinne Gower-Rousseau, et al.. Long-term neoplastic risk associated with colorectal strictures in Crohn’s disease: a multicenter study. 2024. ⟨hal-04578209⟩
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