Current recommendations are that minimum withdrawal times in screening colonoscopy that are negative should average at least 6 minutes. <\/p>\n\n\n\n
In an analysis of a previously published prospective randomized trial in 3 centers in the U.S., investigators measured the effect of withdrawal time on adenoma detection rate (ADR). Rather than simple withdrawal time, the study evaluated inspection time, which is the withdrawal time minus any time for washing and cleaning or removal of polyps. <\/p>\n\n\n\n
Among 1142 patients, 46% underwent screening and 54% underwent surveillance colonoscopy. The median withdrawal time was 9.0 minutes in the screening group and 9.3 minutes in the surveillance group, and ADRs were 49.6% and 63.9%, respectively. <\/p>\n\n\n\n
When investigators segregated withdrawal time into 1-minute increments, ADR increased as withdrawal time increased from 6 to 13 minutes, with a ceiling effect at 13 minutes and a 6% increase per minute in the likelihood of detecting an additional patient with at least 1 adenoma (P<\/em>=.004). The serrated detection rate leveled off at 10 minutes.<\/p>\n\n\n\n Although the incremental effect at 1-minute intervals leveled off at 13 minutes, there was still some positive impact on ADR for withdrawal times of 13 minutes or longer versus less than 13 minutes.<\/p>\n","protected":false},"excerpt":{"rendered":" Current recommendations are that minimum withdrawal times in screening colonoscopy that are negative should average at least 6 minutes. In an analysis of a previously published prospective randomized trial in 3 centers in the U.S., investigators measured the effect of withdrawal time on adenoma detection rate (ADR). Rather than simple withdrawal time, the study evaluated … Read more<\/a><\/p>\n","protected":false},"template":"","categories":[1768,1769],"tags":[2470,1933,2058,1822,2072,3491],"class_list":["post-13271","ec-news","type-ec-news","status-publish","hentry","category-asge-journal-scan","category-asge-kolon","tag-adenoma-detection-rate-2","tag-adr-2","tag-colon-2","tag-colonoscopy-2","tag-polyps-2","tag-withdrawal-times"],"_links":{"self":[{"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/ec-news\/13271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/ec-news"}],"about":[{"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/types\/ec-news"}],"wp:attachment":[{"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/media?parent=13271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/categories?post=13271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.endoscopy-campus.com\/en\/wp-json\/wp\/v2\/tags?post=13271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}