Aminosalicylate therapy in the prevention of dysplasia and colorectal cancer in ulcerative colitis

被引:95
作者
Rubin, David T. [1 ]
LoSavio, Andelka [1 ]
Yadron, Nicole [1 ]
Huo, Dezheng [1 ]
Hanauer, Stephen B. [1 ]
机构
[1] Univ Chicago, Reva & David Logan Ctr Res Gastrointestinal Dis, Chicago, IL 60637 USA
关键词
D O I
10.1016/j.cgh.2006.08.014
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background & Aims: Ammosalicylates have been suggested as chemopreventive agents for colorectal cancer (CRC) in ulcerative colitis (UC). We studied the effect of aminosalicylate use on dysplasia and CRC risk in chronic UC. Methods: UC patients with dysplasia or CRC were matched with controls by disease duration, extent, and age at diagnosis. The total amount of aminosalicylates over the duration of the disease and the mean daily amount of drug was calculated. Conditional logistic regression was used to examine the relationship of aminosalicylates to the risk of neoplasia; potential confounders were controlled in a multivariable model. Results: Twenty-six cases (8 CRC, 18 dysplasia) were matched with 96 controls. Cases and controls were similar in age (median, 43 vs 42.5 y), age at diagnosis of UC (median, 29.5 vs 30.5 y), duration of UC (median, 11.5 vs 9 y), and extent of disease (58% pancolitis), sex, family history of UC, history of primary sclerosing cholangitis, and smoking history. Cases were more likely to have a family history of CRC than controls (27% of cases, 9% of controls, P =.036). Conditional logistic regression adjusted for disease duration, age at diagnosis, and family history of CRC showed that aminosalicylate use of 1.2 g/day or more was associated with a 72% reduction in the odds of dysplasia/CRC (odds ratio, 0.28; 95% confidence interval, 0.09-0.85). As the total dose of aminosalicylates increased, the odds of dysplasia/CRC decreased (P =.056). Conclusions: This case-control study shows a significant risk reduction of dysplasia and CRC in UC patients exposed to aminosalicylate therapy.
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页码:1346 / 1350
页数:5
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