The question of whether chromoscopy (dye spraying) should be used routinely during colonoscopy to enhance detection of adenomas, particularly flat adenomas, is one of the . . .
The question of whether chromoscopy (dye spraying) should be used routinely during colonoscopy to enhance detection of adenomas, particularly flat adenomas, is one of the most important technical issues in colonoscopy. Researchers in Britain randomized 259 patients to undergo either colonoscopy with total colonic chromoscopy (using 0.1% indigo carmine applied via a wash catheter) or routine colonoscopy.
Median extubation time from the cecum was significantly longer in the dye-spray group than in the control group (9:05 vs. 4:52 minutes). The percentage of patients with at least 1 non-neoplastic adenoma in the dye-spray and control groups did not differ statistically (33% and 25%). The total number of adenomas in the dye-spray group was almos…