Erschienen in:
30.09.2017 | Review
Chromoendoscopy, Narrow-Band Imaging or White Light Endoscopy for Neoplasia Detection in Inflammatory Bowel Diseases
verfasst von:
Ofir Har-Noy, Lior Katz, Tomer Avni, Robert Battat, Talat Bessissow, Diana E. Yung, Tal Engel, Anastasios Koulaouzidis, Rami Eliakim, Shomron Ben-Horin, Uri Kopylov
Erschienen in:
Digestive Diseases and Sciences
|
Ausgabe 11/2017
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Abstract
Background
Studies have confirmed an increased risk of colorectal cancer in patients with ulcerative colitis; hence, surveillance is recommended. Optional modalities include white light endoscopy (WLE) or dye-spray chromoendoscopy. However, narrow-band imaging (NBI) is still not considered comparable to chromoendoscopy.
Aim
The aim of this study was to compare the diagnostic yield (DY) of WLE, chromoendoscopy, NBI for detection of neoplasia in patients with inflammatory bowel disease (IBD) by performing a meta-analysis of the existing literature.
Methods
We searched databases for prospective studies. For each modality, we performed comparative per-lesion analysis (any neoplasia detection) and per-patient analysis (patient with neoplastic lesions). Meta-analysis was performed using fixed-effect model unless heterogeneity was high. Odds ratios (ORs) with 95% CIs were calculated and pooled.
Results
Five studies compared chromoendoscopy to WLE. Chromoendoscopy (n = 361) was superior to WLE (n = 358) with per-patient analysis OR 2.05 (95% CI 1.26, 3.35) and per-lesion analysis OR 2.79 (95% CI 2.08, 3.73). High-definition (HD) chromoendoscopy was superior to HD-WLE with per-lesion analysis OR 2.48 (95% CI 1.55, 3.97). In four studies comparing NBI to WLE (n = 305), no difference was found in per-patient analysis OR 0.97 (95% CI 0.62, 1.53) and per-lesion analysis OR 0.94 (95% CI 0.63, 1.4). In two studies comparing CE to NBI (n = 104), no difference was found in per-patient analysis OR 1.0 (95% CI 0.51, 1.95) and per-lesion analysis OR 1.29 (95% CI 0.69, 2.41).
Conclusion
Chromoendoscopy is superior to WLE for detection of dysplasia in IBD, even with HD endoscopy. No difference in DY could be demonstrated for NBI in comparison with other modalities.