PHILADELPHIA – Examining the right colon for more than three minutes during screening helped increase adenoma detection rate, according to research presented at the American College of Gastroenterology Annual Meeting.
“We know the right sided colon is high risk for missing lesions,” Fahad F. Mir, MD, MSc, of the University of Missouri Kansas City, said during his presentation. “Our study showed that longer withdrawal times can help improve adenoma detection rate.”
Investigators randomly assigned patients (mean age 60 years; 55% female) to undergo colonoscopy for colorectal cancer screening with either less than 3 minutes of right colon withdrawal time (n = 197) or more than 3 minutes of withdrawal time (n = 179).
Mir and colleagues found that the adenoma detection rate in the right colon was higher in the more than 3 minutes group than the less than 3 minutes group (35% vs. 12%; P < .0001). Total ADR was also higher in the extra 3 minutes group (59% vs. 36%, P < .0001).
In logistic regression analysis, researchers found that 3 minutes or more of withdrawal time in the right colon resulted in a more than fourfold increase in the likeliness of adenoma detection (P < .0001).
“Adenoma detection rate is significantly improved when more than three minutes are spent examining the right side of the colon,” Mir said. – by Alex Young
: Mir FF, et al. Presidential Plenary Session 1: Abstract 5 Presented at: American College of Gastroenterology Annual Scientific Meeting; Oct. 5-10, 2018; Philadelphia.
Disclosures: Mir reports no relevant financial disclosures. Please see the study abstract for all other authors’ relevant financial disclosures.