Subramanian V et al. – High–definition (HD) colonoscopy improves targeted detection of dysplastic lesions during surveillance colonoscopy of patients with colonic inflammatory bowel disease (IBD) in routine clinical practice. Randomized controlled studies are required to confirm these findings.Methods
- A retrospective cohort study of patients with long-standing (>7 years) colonic IBD undergoing surveillance colonoscopy at Nottingham University Hospital was studied between September 2008 and February 2010.
- Details of diagnosis, duration of disease, and outcomes of the colonoscopy were collected from the endoscopy database, electronic patient records, and patient notes.
- There were 160 colonoscopies (101 ulcerative colitis [UC] and 59 Crohn's disease [CD]) in the SD group and 209 colonoscopies (147 UC and 62 CD) in the HD group.
- The groups were well matched for all demographic variables.
- Thirty-two dysplastic lesions (27 on targeted biopsy) were detected in 24 patients in the HD group and 11 dysplastic lesions (six on targeted biopsy) were detected in eight patients the SD group.
- The adjusted prevalence ratio of detecting any dysplastic lesion and dysplastic lesion on targeted biopsy was 2.21 (95% confidence interval [CI] 1.09-4.45) and 2.99 (95% CI 1.16-7.79), respectively, for HD colonoscopy.