Abstract Introduction Evaluation of patients' reports of characteristics of rectal effluents as a predictor of the quality of the colonoscopy preparation assessed by the endoscopist. Methods A total of 270 patients, aged 18 or older, were consecutively included to perform an outpatient colonoscopy, for a period of 8 months. Demographic and clinical data were collected and evaluated, as well as the rectal effluents' characteristics and data concerning the colonoscopy. The quality of bowel preparation was evaluated by employing the Boston Bowel Preparation Scale. The association between rectal effluents and the quality of preparation was verified by binary logistic regression. Results Of the 270 patients, 67.3% were female, with a mean age of 59.69 ± 12.48 years. Reports of dark and thick, dark orange, or brown and thick effluents produced a higher likelihood of inadequate preparation (OR 4.26, CI 95% 1.51; 11.14, p = 0.004). Conclusions Reports of dark and thick, dark orange, or brown and thick rectal effluents are predictors of inadequate preparation in the endoscopist assessment. patients 27 1 older months Scale regression 673 67 3 67.3 female 5969 59 69 59.6 1248 12 48 12.4 years orange OR 426 4 26 4.26 95 1.51 151 51 1114 11 14 11.14 0.004. 0004 0.004 . 0 004 0.004) assessment 2 6 67. 596 5 59. 124 12. 42 4.2 9 1.5 15 111 11.1 000 0.00 00 4. 1. 11. 0.0 0.

ABSTRACT Background: Several publications have shown greater acceptance of less restrictive diets for colonoscopy preparation, without impairing the quality of the preparation, when compared to the clear liquid diet. Objective: To evaluate the quality, tolerance and preference regarding the colonoscopy preparation of a low-fiber, normocaloric diet compared with a hypocaloric liquid diet. Methods: This is a randomized, controlled, observer-blind study to compare two low-fiber colonoscopy preparation diets (hypocaloric liquid diet vs. normocaloric diet). The Boston Bowel Preparation Scale was used to evaluate the quality of the preparations, being considered adequate BBPS ≥6 in the global assessment and ≥2 in each segment. The same laxative was used in both groups as well as the “split-dose” regimen. Results: A total of 136 individuals were enrolled in each group. Adequate preparation was achieved in 90.4% of the individuals allocated to the liquid diet group and 92.6% to the normocaloric group. There was no significant difference in the quality of preparation and tolerance between groups. A higher patient acceptance to repeat the procedure if necessary was observed in the normocaloric diet group compared with the liquid diet group (P=0.005). Conclusion: The normocaloric diet has shown to be not inferior to the liquid diet regarding the quality of the colonoscopy preparation. Patient tolerance rates were similar between both diets, but a higher acceptance rate was observed with the normocaloric diet as compared with the liquid diet. Background Objective lowfiber, lowfiber low fiber, fiber Methods randomized controlled observerblind observer blind vs . diet) preparations 6 ≥ 2 segment splitdose split dose “split-dose regimen Results 13 904 90 4 90.4 926 92 92.6 P=0.005. P0005 P P=0.005 0 005 (P=0.005) Conclusion 1 9 90. 92. P000 P=0.00 00 (P=0.005 P00 P=0.0 (P=0.00 P0 P=0. (P=0.0 P=0 (P=0. P= (P=0 (P= (P

RESUMO Contexto: Diversas publicações têm evidenciado uma maior aceitação de dietas menos restritivas para preparo de colonoscopia, sem prejuízo na sua qualidade, quando comparadas com a dieta de líquidos claros. Objetivo: Avaliar a qualidade, tolerância e preferência do preparo para colonoscopia de uma dieta líquida hipocalórica, quando comparada com uma dieta normocalórica, ambas pobres em fibras. Métodos: Trata-se de um estudo randomizado, controlado, observador “cego”, para comparar duas dietas de preparo para colonoscopia (dieta líquida hipocalórica e dieta normocalórica, ambas pobres em fibras). Foi utilizada a escala de Boston para avaliar a qualidade do preparo, sendo considerado adequado BBPS ≥6 na avaliação global e ≥2 em cada segmento. Foram prescritos o mesmo laxativo e o regime “dose fracionada” para ambos os grupos. Resultados: Foram incluídos 136 indivíduos em cada grupo. O preparo adequado foi alcançado em 90,4% dos indivíduos alocados no grupo da dieta líquida e 92,6% da normocalorica. Não houve diferença significativa na qualidade do preparo e na tolerância entre ambas as dietas. Observou-se maior aceitação de repetir o procedimento se necessário, no grupo da dieta normocalórica quando comparado ao da dieta líquida (P=0,005). Conclusão: A dieta normocalórica não é inferior que à líquida na qualidade do preparo para colonoscopia, ambas apresentam tolerância similar, porém com maior aceitação da dieta normocalórica quando comparada à líquida. Contexto claros Objetivo fibras Métodos Tratase Trata randomizado controlado cego, cego , “cego” . fibras) 6 ≥ 2 segmento dose fracionada grupos Resultados 13 904 90 4 90,4 926 92 92,6 normocalorica Observouse Observou necessário P=0,005. P0005 P P=0,005 0 005 (P=0,005) Conclusão similar “cego 1 9 90, 92, P000 P=0,00 00 (P=0,005 P00 P=0,0 (P=0,00 P0 P=0, (P=0,0 P=0 (P=0, P= (P=0 (P= (P