Conventional Colonoscopy vs. Cap-Assisted Colonoscopy
Introduction
Colonoscopy is the main method for diagnosing colorectal cancer. However, the results for detecting polyps and adenomas have varied with different devices.
Objectives
This study aims to see if there are differences in the diagnostic performance of conventional colonoscopy (CC) versus cap-assisted colonoscopy (CAC) for adenoma detection.
Materials and Methods
We conducted a prospective randomized clinical trial comparing CC and CAC in a public reference hospital.
Results
We assigned 131 patients to either CC (64 patients) or CAC (67 patients). Key findings include:
- Shorter Cecal Intubation Time: CAC had a shorter average time (6 minutes) compared to CC (7.5 minutes) with a significant difference (p=0.005).
- Higher Ileum Intubation Rate: CAC had a greater chance of successfully reaching the ileum (RR = 1.62; 1.21-2.17).
- Adenoma and Polyp Detection Rates: No significant differences were found between CC and CAC for adenoma (RR: 1.62; 1.21-2.17) or polyp detection rates (RR: 1.07; 0.602-1.919).
Conclusion
CAC showed a shorter duration for cecal intubation and a better chance of ileum intubation, but no major differences in adenoma detection rates were observed. There was a slight trend of detecting more adenomas in the right colon with CAC, though not statistically significant.
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