COLONOSCOPY WITHDRAWAL TIME AND POLYPS ADENOMA DETECTION RATE

Abdiwahid Mohamed Bile, Feng Xue, Ke Zhang, Yemin Xu, Yang Dong, Mengshuo Wang, Xi Xu, Bin Deng*

ABSTRACT

Introduction: The best moment to stop having colonoscopies is still up for debate. While some research show that adenoma detection rate is increased by a longer withdrawal time, others have shown the opposite. Methods: We examined all original publications between the study's beginning and December 2021, including studies comparing the two cohorts, (a) a colonoscopy withdrawal time of 9 minutes, (b) a colonoscopy withdrawal time of 6 to 9 minutes. (1) Sessile Serrated Adenoma Detection Rate, (2) Advanced Adenoma Detection Rate, and (3) Adenoma Detection Rate (ADR) were the outcome measures. The meta-analysis was performed using 2-tailed statistics. Results: Following a thorough study of the literature, 7 research met the inclusion criteria. The results showed that a 9-minute CWT had a considerably better chance of detecting adenoma than a 6-9-minute CWT (OR 1.54, 95 percent CI 1.30 – 1.82; I2=93.7). Additionally, CWT of at least 9 minutes was associated with significantly trend toward higher odds of advanced adenoma detection (OR 1.38, 95 percent CI 0.98 – 1.95, I 2=90) and higher odds of sessile serrated adenoma detection (OR 1.68, 95 percent CI 1.28 – 2.22; I2=0) and when compared to colonoscopy withdrawal time of 6-9 minutes. Conclusion: This meta-analysis investigation adds to growing body of data indicating lengthier CWT group had considerably greater ADR and SDR than the at least 6 minute CWT cohort.

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