Improved Survival with Early Colonoscopy in Ulcerative Colitis Patients
Author Information
Author(s): Hata K, Watanabe T, Kazama S, Suzuki K, Shinozaki M, Yokoyama T, Matsuda K, Muto T, Nagawa H
Primary Institution: The University of Tokyo
Hypothesis
Does an earlier surveillance colonoscopy programme improve survival in patients with ulcerative colitis associated colorectal cancer?
Conclusion
The study suggests that an earlier surveillance colonoscopy programme can successfully detect dysplasia or cancer at an earlier stage in patients with ulcerative colitis.
Supporting Evidence
- Patients with invasive cancer in the surveillance group had better prognoses than those in the nonsurveillance group.
- The cumulative risk for invasive cancer at 10, 20, and 30 years was found to be lower than in most Western countries.
- High-grade dysplasia or low-grade dysplasia were detected in 15 patients through the surveillance programme.
Takeaway
This study shows that checking for cancer earlier in people with a certain type of bowel disease can help find problems sooner, which is better for their health.
Methodology
A 23-year surveillance colonoscopy programme was conducted, reviewing 217 patients with long-standing ulcerative colitis.
Potential Biases
Potential selection bias due to non-randomized design.
Limitations
The study was not performed in a randomized manner, and lead-time bias along with selection bias could not be avoided.
Participant Demographics
Patients with long-standing ulcerative colitis, including those with total and left-sided colitis.
Statistical Information
Confidence Interval
95% confidence interval for invasive cancer risk at 10, 20, and 30 years was 0.5% (0–1.5), 4.1% (0–8.3), and 6.1% (0.2–12.0), respectively.
Digital Object Identifier (DOI)
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