Second Examination of the Right Colon Using Narrow‐Band Imaging Increases Adenoma Detection Rates in the Right Colon: A Multicenter, Randomized Controlled Trial
Year: 2025
Type: article
Study designs: Randomized Controlled Trial, Clinical Trial
Abstract: BACKGROUND/AIMS: Repeat examination of the right colon increases adenoma detection rates (ADRs) in the right colon. This study aimed to investigate whether a second examination of the right colon using narrow-band imaging (NBI) increases ADRs in the right colon compared with repeat examinations using white light imaging (WLI). METHODS: Consecutive patients with routine indications for colonoscopy were enrolled and randomly assigned to two groups. The control arm underwent two repeat forward examinations of the right colon using WLI only (repeat-WLI group), and the intervention arm underwent the first examination of the right colon using WLI and the second examination using NBI (WLI-NBI group). Lesions detected during the first and second examinations in each group were analyzed. The primary outcome was ADR in the right colon. RESULTS: A total of 476 colonoscopies were analyzed, including 240 and 236 in the repeat-WLI and WLI-NBI groups, respectively. The overall ADR in the right colon was significantly higher in the WLI-NBI group than that in the repeat-WLI group (27.1% vs. 17.9%; p = 0.022). The number of adenomas per colonoscopy in the right colon was also significantly higher in the WLI-NBI group than in the repeat-WLI group (mean number of adenomas, 0.36 vs. 0.24; p = 0.042). However, there were no significant differences in the detection rates of advanced adenomas and sessile serrated lesions between the WLI-NBI and repeat-WLI groups (advanced adenoma, 4.7% vs. 2.9%; sessile serrated lesion, 2.5% vs. 3.3%). CONCLUSION: A second forward examination of the right colon using NBI increased ADRs in the right colon.
DOI: 10.1111/jgh.16964
Institutions: Soonchunhyang University, Soonchunhyang University Hospital Bucheon, Eulji University, Eulji University Uijeongbu Eulji Medical Center, CHA University Bundang Medical Center, CHA University, Hanyang University Seoul Hospital, Chung-Ang University, Hallym University, Hallym University Chuncheon Sacred Heart Hospital, Hanyang University Guri Hospital
Language: English
Subfield: Oncology
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W4409420422