Colonoscopy is the technique of choice for the evaluation of the mucosa of the colon. To be able to do the procedure in optimal conditions, it needs to be clean. Therefore, it is necessary to carry out a preparation as safe and tolerable as possible. This preparation generally consists in a low residue diet the days before the colonoscopy and in the intake of a laxative solution. In previous studies, it has been shown that the low residue diet does not play a relevant role as it was considered before. Recent studies demonstrated that reducing the days of low residue diet does not worsen the cleansing and improves the patient experience. The results of this study are required for determining the role of diet restrictive diet in colon cleansing.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
TRIPLE
Enrollment
553
Free diet, without restrictions
To follow a diet low in residues / fiber. the day before the colonoscopy.
If the participant is at risk of inadequate bowel cleansing, defined by a score of Dik et al ≥ 2 it will be given Bisacodyl 5 milgrams bid for 3 days.
Hospital de Mataró. Consorci Sanitari del Maresme.
Mataró, Barcelona, Spain
Hospital Universitari Parc Taulí
Sabadell, Barcelona, Spain
Hospital Universitario de Canarias
San Cristóbal de La Laguna, Santa Cruz De Tenerife, Spain
Consorci Sanitari de Terrassa
Terrassa, Spain
Hospital Universitary Mutua de Terrassa
Terrassa, Spain
Adequate bowel cleansing
Bowel cleansing as a rating using the Boston Bowel Preparation Scale above 1 in each segment . This score ranges fron 0 to 3 in each one of the three segments. Zero is the worst outcome and 3 is the best cleansing
Time frame: During colonoscopy (At the withdrawal phase)
Diet tolerability as assessed by a likert scale
Tolerance to the diet assigned to the participant measured with a likert scale from 0 to 5, 0 the worst ad 5 the best.
Time frame: The day of the colonoscopy just before beginning
Preparation tolerability as assessed by a likert scale and Hatoum et al. survey
Tolerance to the cleansing solution used for bowel cleansing measured with a likert scale from 0 to 5, 0 the worst ad 5 the best. Hatoum et al is a validated survey designed for assessing bowel preparation tolerability DOI 10.1007/s40271-015-0154-8
Time frame: The day of the colonoscopy just before beginning
Rate of colonoscopies with adenoma
An adenoma was detected, resected and confirmed by the histology report in the colonoscopy.
Time frame: With histology report, an average of 4 weeks after colonoscopy
Rate of colonoscopies with polyps
Polyp detection in the colonoscopy as reported by the endoscopist.
Time frame: During colonoscopy
Cecal intubation time
Time expended in reaching the cecum
Time frame: During colonoscopy
Withdrawal time
Time expended in the withdrawal from cecum till the anus.
Time frame: During colonoscopy
Information perceived quality assessed by a likert scale
Perceived quality of the instructions and education received for the colonoscopy preparation by the participant. Assessed using a likert scale
Time frame: The day of the colonoscopy just before beginning
Entry bowel cleansing as assessed by the modified Boston Bowel Preparation Scale
Bowel cleansing during cecum intubation phase assessed using a modified Boston Bowel Preparation Scale which is without considering any additional cleansing during the endoscopy.
Time frame: During colonoscopy (At the entry phase)
Rate of colonoscopies with flat polyps
Flat polyp detection defined by Paris criteria: no polypoid nor ulcerated (Paris 0-IIa/b/c) in the colonoscopy as reported by the endoscopist.
Time frame: During colonoscopy
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