Prolonged Cecal Insertion Time Is Not Associated with Decreased Adenoma Detection When a Longer Withdrawal Time Is Achieved

摘要

Background The association between withdrawal time and adenoma detection has been established; however, the effect of cecal insertion time on adenoma detection remains unclear. Aim To determine the association between cecal insertion time and adenoma detection. Methods This study completed a retrospective analysis of data collected in 4 prospective randomized-controlled trials related to screening and surveillance colonoscopy at a single tertiary care from 2010 to 2016. The primary outcome was cecal insertion time and its association with mean number of adenomas per patient and adenoma detection rate (ADR). Results 1303 patients met inclusion criteria (average age 59.7?±?8.7?years; 759 females (58.3%), and 763 Caucasians (58.6%). Mean cecal insertion time was significantly longer in patients who were female ( p ? ?0.05), which was also true on Poisson regression analysis. Adenomas and advanced adenomas per patient were found to decrease when cecal insertion to withdrawal time ratios were greater than 1 ( p ?