METHODS
polyps, bleeding, melanosis
BLEEDING, INFLAMMATORY BOWEL DISEASE, MELANOSIS, ALTERNATION, COMPLICATIONS
We carried out this prospective, non-randomized study in a tertiary hospital in Belo Horizonte, Brazil. Patients were divided into two groups: the first (G1) underwent routine colonoscopy, followed by a second endoscopic evaluation of the ascending colon and cecum; and the second group (G2) underwent routine colonoscopy, followed by a second evaluation of the ascending colon and cecum with chromoscopy using indigo carmine dye. In both groups we considered the hepatic flexure as the distal limit. Patients were divided between groups by simple alternation. All examinations were performed by a single examiner, with high-definition endoscopes (Olympus - Evis Exera), without image magnification, and without digital chromoscopy.Inclusion criteria were patients over 18 years of age who underwent diagnostic or screening colonoscopy and who agreed to participate in the study after signing an informed consent form. Exclusion criteria were patients with a previous history of right colectomy, incomplete colonoscopy due to technical difficulties or obstructive lesions of the distal colon, inadequate preparation of the proximal colon, active bleeding at the time of examination, previous diagnosis of inflammatory bowel disease, polyps detected by other methods (virtual colonoscopy or barium enema), colonic melanosis, incomplete colonoscopy due to hemodynamic, or anesthesiological complications.The Research Ethics Committee of the Felício Rocho Hospital approved this study and the informed consent form.