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DOI: 10.1055/s-0042-1745004
FEASIBILITY OF UNRESTRICTED DIET VERSUS A 3-DAY LOW-RESIDUE DIET PRE-COLONOSCOPY AND IT IMPACT ONTHE QUALITY OF THE BOWEL PREPARATION
Aims To compare the effect of unrestricted diet vesus a 3-day low-residue diet pre-colonoscopy in the quality of the bowel preparation
Methods A randomized, multicenter, researcher-blinded and parallel-group feasibility trial was performed to compare an unrestricted diet versus a 3-day low residue diet for colonoscopy preparation in individuals with positive fecal immunochemical test aged between 50 and 69 years, who participated in an organized colorectal cancer screening program, and without factors associated with poor bowel cleansing. The efficacy of the colon preparation was assessed using the Boston Bowel Preparation Scale during intubation and withdrawal. Secondary outcomes were: bowel exploration time, adenoma and polyp detection rates and preparation and diet tolerability.
Results A total of 102 individuals were randomized, with a mean age of 59.3±5.5 years, 40,1% were women. All participants in both groups had adequate preparations (Boston scores≥2 in each segment). Adherence to the preparation was complete in most participants in both groups. No significant differences between groups were observed in withdrawal or cecal intubation times nor adenoma detection rate. The unrestricted diet was significantly better tolerated than the 3-day low residue diet (p<0.01). Preparation assessed during intubation was adequate in 82.5% in the free diet group and 90.3% in 3-day low residue diet group (p=0.24).
Conclusions Unrestricted diet is prefered by the patients. Dietary restriction may be unnecessary to achieve adequate bowel preparation
Publication History
Article published online:
14 April 2022
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