Written Recommendation to Improve Adherence in Poor Bowel Preparation

Plain-language summary

Our study aims to improve adherence to international clinical guidelines of repeating colonoscopy within 1 year, when bowel cleansing has failed. To this end, we have designed an ambispective study in patients with inadequately prepared colonoscopy. An intervention group to which a precise written recommendation on the need to repeat the colonoscopy in less than 1 year is attached, compared with a control group to which no written recommendations are provided. The sample size calculation is 171 patients per arm. In addition, we will quantify the percentage of pre-malignant and malignant lesions detected at repeat colonoscopy. We will also analyze factors that may be related to the recommendation or non-recommendation of repeat colonoscopy, as well as the association of variables related to adherence to repeat colonoscopy at an interval of less than 1 year. Through our study, we intend to demonstrate that a written recommendation, easily applicable and generalizable, has a positive impact on adherence to clinical follow-up guidelines in patients in whom bowel cleansing has failed.

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