Comparison of Right Colon Adenoma Miss Rates Between Water Exchange and Carbon Dioxide Insufflation

To test the hypothesis that water exchange (WE), when compared with carbon dioxide (CO2) insufflation, significantly reduces the right colon adenoma miss rate (rAMR) in a blinded randomized controlled trial with cap-assisted colonoscopy.The unblinded consecutive group observational data showed that WE significantly decreased rAMR. The unblinded data are limited by potential bias.Consecutive patients aged 45 years or more were randomized to...