Abstract
Standards for the detection of adenomas during screening colonoscopy are widely used to measure examination quality. No such standards exist for sessile serrated adenomas (SSAs). To measure both the adenoma detection rate (ADR) and SSA detection rate (SSADR) during screening colonoscopy before and after quality improvement/financial incentive measures. Retrospective determination of baseline ADR/SSADR by the endoscopist, followed by prospective collection of data after informing physicians of baseline detection rates. Tertiary cancer center with a large cancer screening program. A total of 2833 average-risk colorectal cancer screening patients 50 to 75 years of age undergoing initial colonoscopy. Electronic medical records for indication and demographics, endoscopy report, and pathology report. Detection rates of adenomas and SSAs by sex. The overall ADR in male and female patients was 50.6% and 36.6%, respectively. The overall detection rate of advanced adenomas in male and female patients was 12.4% and 6.5%, respectively. The overall SSADR inmale and female patients was 10.1% and 7.1%, respectively. In 108 patients (3.8% of entire group), SSAs were the only premalignant lesions found. Detection rates of both types of premalignant polyps improved over time but did not reach statistical significance. Single-center experience with limited sample size and small group of endoscopists. ADRs far in excess of current standards are achievable. Cecal withdrawal time is associated with theADR. Prevalence of SSA rivals that of advanced adenomas and is greater than current medical literature suggests. The combination of monitoring and financial incentives did not result in statistically significant improvement in ADRs.
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