Chromoendoscopy versus narrow band imaging for colonic surveillance in inflammatory bowel disease.

Abstract:

BACKGROUND:Mucosal dye spraying (chromoendoscopy [CE]) has been shown in controlled studies to enhance lesion detection in colitis surveillance. Narrow band imaging (NBI) potentially offers a more convenient mode of highlighting mucosal lesions. The primary objectives of this study were to compare CE and NBI in colitis surveillance with respect to lesion detection. A secondary objective was to assess the accuracy of the mucosal pit pattern (Kudo classification) with NBI in predicting mucosal histology. METHODS:Patients with colitis of 8 years or greater disease duration underwent screening colonoscopy with NBI, followed immediately by CE by 2 endoscopists blinded to each other's results. All lesions were biopsied to confirm histology. Diagnostic yield of each modality for dysplastic lesions. Accuracy of Kudo classification by NBI for neoplasia. RESULTS:Forty-four participants were enrolled. One hundred forty-four colonic lesions were identified in total. Overall, CE identified more lesions than NBI (131 versus 102, P < 0.001); however, most were nondysplastic. CE detected 23 neoplastic (dysplastic or indefinite for dysplasia) lesions in 11 patients and NBI 20 lesions in 10 patients, P = 0.180. Kudo assessment by NBI had low sensitivity for dysplasia (42%) and modest accuracy (74%) for dysplasia. CONCLUSIONS:NBI detected fewer lesions than CE in chronic colitis; however, most were not dysplastic. There was a nonsignificant trend in favor of CE for detection of dysplasia. At present, NBI cannot be recommended as an alternative to CE for dysplasia surveillance in colitis.

journal_name

Inflamm Bowel Dis

authors

Efthymiou M,Allen PB,Taylor AC,Desmond PV,Jayasakera C,De Cruz P,Kamm MA

doi

10.1097/MIB.0b013e31829637b9

subject

Has Abstract

pub_date

2013-09-01 00:00:00

pages

2132-8

issue

10

eissn

1078-0998

issn

1536-4844

journal_volume

19

pub_type

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