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Published in: International Journal of Colorectal Disease 2/2017

01-02-2017 | Original Article

Combining aneuploidy and dysplasia for colitis’ cancer risk assessment outperforms current surveillance efficiency: a meta-analysis

Authors: Rüdiger Meyer, Sandra Freitag-Wolf, Silke Blindow, Jürgen Büning, Jens K. Habermann

Published in: International Journal of Colorectal Disease | Issue 2/2017

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Abstract

Purpose

Cancer risk assessment for ulcerative colitis patients by evaluating histological changes through colonoscopy surveillance is still challenging. Thus, additional parameters of high prognostic impact for the development of colitis-associated carcinoma are necessary. This meta-analysis was conducted to clarify the value of aneuploidy as predictor for individual cancer risk compared with current surveillance parameters.

Methods

A systematic web-based search identified studies published in English that addressed the relevance of the ploidy status for individual cancer risk during surveillance in comparison to neoplastic mucosal changes. The resulting data were included into a meta-analysis, and odds ratios (OR) were calculated for aneuploidy or dysplasia or aneuploidy plus dysplasia.

Results

Twelve studies addressing the relevance of aneuploidy compared to dyplasia were comprehensively evaluated and further used for meta-analysis. The meta-analysis revealed that aneuploidy (OR 5.31 [95 % CI 2.03, 13.93]) is an equally effective parameter for cancer risk assessment in ulcerative colitis patients as dysplasia (OR 4.93 [1.61, 15.11]). Strikingly, the combined assessment of dysplasia and aneuploidy is superior compared to applying each parameter alone (OR 8.99 [3.08, 26.26]).

Conclusions

This meta-analysis reveals that aneuploidy is an equally effective parameter for individual cancer risk assessment in ulcerative colitis as the detection of dysplasia. More important, the combined assessment of dysplasia and aneuploidy outperforms the use of each parameter alone. We suggest image cytometry for ploidy assessment to become an additional feature of consensus criteria to individually assess cancer risk in UC.
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Metadata
Title
Combining aneuploidy and dysplasia for colitis’ cancer risk assessment outperforms current surveillance efficiency: a meta-analysis
Authors
Rüdiger Meyer
Sandra Freitag-Wolf
Silke Blindow
Jürgen Büning
Jens K. Habermann
Publication date
01-02-2017
Publisher
Springer Berlin Heidelberg
Published in
International Journal of Colorectal Disease / Issue 2/2017
Print ISSN: 0179-1958
Electronic ISSN: 1432-1262
DOI
https://doi.org/10.1007/s00384-016-2684-5

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