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Inflammatory Bowel Diseases:
doi: 10.1097/01.MIB.0000437986.00190.71
Clinical Review Articles

Histologic Evaluation of Ulcerative Colitis: A Systematic Review of Disease Activity Indices

Mosli, Mahmoud H. MD*,†,‡; Feagan, Brian G. MD*,§,‖; Sandborn, William J. MD§,¶; D'Haens, Geert MD, PhD§,**; Behling, Cynthia MD††; Kaplan, Keith MD‡‡; Driman, David K. MD§§; Shackelton, Lisa M. PhD§; Baker, Kenneth A. PhD§; MacDonald, John K. MS*; Vandervoort, Margaret K. MS§; Geboes, Karel MD, PhD‖‖; Levesque, Barrett G. MD§,¶

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Abstract

Background:

Ulcerative colitis (UC) is an idiopathic inflammatory disorder. Currently, the main goals of treatment are to induce and maintain clinical and/or endoscopic remission. However, evidence indicates that persistent disease activity on colonic biopsies in the setting of clinical or endoscopic remission is an independent predictor of poor outcomes. A number of previous studies have proposed histologic indices for use in specific trials of UC. The aim of this study was to systematically review the existing histological indices for UC and assess their potential use in both patient management and clinical trials.

Methods:

We performed a systematic review of histological indices evaluating disease activity in UC. MEDLINE (Ovid), EMBASE (Ovid), PubMed, the Cochrane Library (CENTRAL), and Digestive Diseases Week (DDW) abstracts of randomized and/or controlled trials clinical trials were searched from inception to February 2013 for applicable studies. Data from these studies were reviewed and analyzed.

Results:

After systematically applying inclusion criteria, we identified 108 scientific articles including 88 clinical studies and 21 related clinical reviews. Eighteen indices of histological activity in UC were identified and reviewed.

Conclusions:

Although multiple histological scoring indices for assessment of UC disease activity currently exist, none of these instruments were developed using a formal validation process and their operating properties remain poorly understood. Future studies are needed to address this deficiency.

Copyright © 2014 Crohn's & Colitis Foundation of America, Inc.

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