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Title: One-Time Fecal Immunochemical Screening for Advanced Colorectal Neoplasia in Patients with CKD (DETECT Study)
Authors: Roger, Simon D ;Wong, G.;Hope, R.L.;Howard, K.;Chapman, J.R.;Castells, A.;Bourke, M.J.;Macaskill, P.;Turner, R.;Williams, G.;Lim, W.H.;Lok, C.E.;Diekmann, F.;Cross, N.B.;Sen, S.;Allen, R.D.;Chadban, S.J.;Pollock, C.A.;Tong, A.;Teixeira-Pinto, A.;Yang, J.Y.H.;Williams, N.;Au, E.H.K.;Kieu, A.;James, L.;Craig, J.C.
Affliation: Central Coast Local Health District
Gosford Hospital
Issue Date: Jun-2019
Source: 30(6):1061-1072
Journal title: Journal of the American Society of Nephrology
Department: Renal
Abstract: BACKGROUND: In patients with CKD, the risk of developing colorectal cancer is high and outcomes are poor. Screening using fecal immunochemical testing (FIT) is effective in reducing mortality from colorectal cancer, but performance characteristics of FIT in CKD are unknown. METHODS: To determine the detection rates and performance characteristics of FIT for advanced colorectal neoplasia (ACN) in patients with CKD, we used FIT to prospectively screen patients aged 35-74 years with CKD (stages 3-5 CKD, dialysis, and renal transplant) from 11 sites in Australia, New Zealand, Canada, and Spain. All participants received clinical follow-up at 2 years. We used a two-step reference standard approach to estimate disease status. RESULTS: Overall, 369 out of 1706 patients who completed FIT (21.6%) tested positive; 323 (87.5%) underwent colonoscopies. A total of 1553 (91.0%) completed follow-up; 82 (4.8%) had died and 71 (4.2%) were lost. The detection rate of ACN using FIT was 6.0% (5.6%, 7.4%, and 5.6% for stages 3-5 CKD, dialysis, and transplant). Sensitivity, specificity, and positive and negative predictive values of FIT for ACN were 0.90, 0.83, 0.30, and 0.99, respectively. Of participants who underwent colonoscopy, five (1.5%) experienced major colonoscopy-related complications, including bowel perforation and major bleeding. CONCLUSIONS: FIT appears to be an accurate screening test for patients with CKD, such that a negative test may rule out the diagnosis of colorectal cancer within 2 years. However, the risk of major complications from work-up colonoscopy are at least ten-fold higher than in the general population.
DOI: 10.1681/asn.2018121232
ISSN: 1046-6673
Publicaton type: Journal Article
Keywords: Kidney Disease
Study or Trial: Sensitivity and Specificity
Appears in Collections:Renal Medicine

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