Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2019
Nancy Index Scores of Chronic Inflammatory Bowel Disease Activity Associate With Development of Colorectal Neoplasia.
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Kirchgesner Julien, Svrcek Magali, Le Gall Guillaume, Landman Cécilia, Dray Xavier, Bourrier Anne, Nion-Larmurier Isabelle, Hoyeau Nadia, Sokol Harry, Seksik Philippe, Cosnes Jacques, Fléjou Jean-François, Beaugerie Laurent, Saint-Antoine Inflammatory Bowel Disease Network
Аннотация
BACKGROUND & AIMS: The degree of histologic and endoscopic disease activity has been associated with an increased risk of colorectal neoplasia (CRN) in patients with inflammatory bowel diseases (IBDs), but no histologic scoring systems have been validated for determining risk of CRN. We investigated the association between histologic and endoscopic disease activity and risk of first CRN in patients with IBD who had negative findings from a surveillance colonoscopy.
METHODS: We performed a retrospective analysis of consecutive patients who underwent at least 2 colonoscopies at Saint Antoine Hospital in France from January 1, 1996, through March 1, 2015, and whose first procedure was a surveillance colonoscopy. Histologic IBD activity was assessed by the Nancy histologic index. Patients were followed up for a mean 5.7 ± 3.3 years. Logistic regression and generalized estimating equations were used to identify clinical, endoscopic, and histologic factors associated with detection of neoplasia in the inflamed colon mucosa.
RESULTS: Among 398 patients who underwent 1277 colonoscopies, we identified 45 patients with CRN. Factors associated with CRN were primary sclerosing cholangitis (odds ratio [OR], 2.65; 95% CI, 1.06-6.61; P = .04), age (OR per 1-year increase, 1.04; 95% CI, 1.01-1.07; P = .003), and mean Nancy histologic index during follow-up evaluation (per 1-unit increase, OR, 1.69; 95% CI, 1.29-2.21; P < .001). After adjustment for established factors, chronic disease activity defined as detection of ulcerations at more than 50% of colonoscopies was not associated with an increased risk of CRN (OR, 1.24; 95% CI, 0.53-2.91; P = .62).
CONCLUSIONS: In addition to established risk factors, we associated Nancy histologic index scores with development of CRN. Histologic findings based on the Nancy histologic index therefore should be included in determining the risk of colonic neoplasia in patients with IBD.
METHODS: We performed a retrospective analysis of consecutive patients who underwent at least 2 colonoscopies at Saint Antoine Hospital in France from January 1, 1996, through March 1, 2015, and whose first procedure was a surveillance colonoscopy. Histologic IBD activity was assessed by the Nancy histologic index. Patients were followed up for a mean 5.7 ± 3.3 years. Logistic regression and generalized estimating equations were used to identify clinical, endoscopic, and histologic factors associated with detection of neoplasia in the inflamed colon mucosa.
RESULTS: Among 398 patients who underwent 1277 colonoscopies, we identified 45 patients with CRN. Factors associated with CRN were primary sclerosing cholangitis (odds ratio [OR], 2.65; 95% CI, 1.06-6.61; P = .04), age (OR per 1-year increase, 1.04; 95% CI, 1.01-1.07; P = .003), and mean Nancy histologic index during follow-up evaluation (per 1-unit increase, OR, 1.69; 95% CI, 1.29-2.21; P < .001). After adjustment for established factors, chronic disease activity defined as detection of ulcerations at more than 50% of colonoscopies was not associated with an increased risk of CRN (OR, 1.24; 95% CI, 0.53-2.91; P = .62).
CONCLUSIONS: In addition to established risk factors, we associated Nancy histologic index scores with development of CRN. Histologic findings based on the Nancy histologic index therefore should be included in determining the risk of colonic neoplasia in patients with IBD.