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Dig Liver Dis. 2013 Apr;45(4):285-9. doi: 10.1016/j.dld.2012.11.008. Epub 2012 Dec 20.

Computed tomographic colonography in subjects with positive faecal occult blood test refusing optical colonoscopy.

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  • 1Radiodiagnostic Section, Department of Clinical Physiopathology, University of Florence, Viale G. Pieraccini 6, 50139 Florence, Italy. lapo.sali@unifi.it

Abstract

BACKGROUND:

Refusal of colonoscopy is a drawback of colorectal cancer screening programmes based on faecal occult blood test. Computed-tomographic-colonography is generally more accepted than colonoscopy.

AIM:

To compare adherence to computed-tomographic-colonography and second-invitation colonoscopy in subjects with positive faecal test refusing colonoscopy.

METHODS:

We performed a prospective study in 198 subjects with positive faecal test who refused first referral to colonoscopy in one endoscopy service of the Florence screening programme. Subjects were randomly invited to computed-tomographic-colonography (n = 100) or re-invited to colonoscopy (n = 98). Mail invitation was followed by a questionnaire administered by phone. Computed-tomographic-colonography findings were verified with colonoscopy.

RESULTS:

32 subjects could not be reached, 71 (35.9%) had undergone colonoscopy on their own; 4 were excluded for contraindications; 30/48 (62.5%) in the computed-tomographic-colonography arm and 11/43 (25.6%) in the colonoscopy arm accepted the proposed examinations (p < 0.001). Four advanced adenomas and 1 cancer were found in the 28 subjects who ultimately underwent computed-tomographic-colonography and 2 advanced adenomas and 2 cancers in the 9 subjects who ultimately underwent second-invitation colonoscopy.

CONCLUSION:

Subjects with positive faecal occult blood test refusing colonoscopy show a higher adherence to computed-tomographic-colonography than to second invitation colonoscopy.

Copyright © 2012 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.

PMID:
23266193
[PubMed - indexed for MEDLINE]
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