Bowel Preparation for Colonoscopy
Conditions
Brief summary
Colonoscopy is the gold standard diagnostic procedure for colonic disease. Excellent bowel cleansing is critical for this procedure. However, an inadequate bowel cleansing is a common problem that occurs up to 20% of procedures. This fact has a deep clinical and economical impact. In fact, inadequate bowel preparation is associated to misdiagnosis in 30% of lesions. Moreover several clinical conditions such as cirrhosis, antidepressant drugs, and hospitalized patients are predictive factors of inadequate colonic preparations. These circumstances have promoted multiple clinical trials, however there is no consensus about the optimal strategy for colonic cleansing. Education in colonic preparation has obtained conflicting results. Polyethylene glycol (PEG) and sodium phosphate solutions have been the commonest preparations used with a similar efficacy. However, the large volume to ingest (4 litters) makes PEG compliance difficult. Likewise, sodium phosphate also contains high levels in sodium and phosphate which contraindicate its use in elderly patients and / or with comorbidity. The use of adjuvants such as olive oil and bisacodyl allows reducing the volume of polyethylene glycol thereby improving the tolerance and right colon preparation. The aim of this study is to compare the efficacy of a multidisciplinary approach (education, fiber free diet, polyethylene glycol (PEG) 2L, and adjuvant bisacodyl + olive oil) vs. a conventional approach (fiber free diet+ PEG 4L in split doses ) in cleaning the colon of hospitalized patients.
Interventions
Sponsors
Corporacion Parc Tauli
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Hospitalized patients who undergo a non urgent colonoscopy * Patients who give informed consent to participate in the study * Patients older than 18 years * Patients who undergo total colonoscopy
Exclusion criteria
* Non compliance with the 48 hours diet prescribed * The endoscopy planned is a rectosigmoidoscopy * Previous colonic surgery * Mental/cognitive impairment preventing the study assessments * Severe renal failure * Electrolytic disbalance(hyponatremia, hypokaliemia, Hyperphosphatemia, hypocalcemia and hypomagnesemia) * Intestinal obstruction, perforation or toxic megacolon * Pregnant or nursing women * Allergy/intolerance to PEG, bisacodyl or adjuvants * No informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| percentage of patients with adequate bowel preparation | at the time of performing the colonoscopy | Adequate bowel preparation is defined as a preparation which allows exploring the whole colonic mucose and detecting flat lesions (Rating as good or excellent in the Boston Bowel preparation scale) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of patients with adequate bowel preparation by bowel segments | At the time of performing the colonoscopy | The boston scale will be assessed by the investigators during the procedure. |
| Tolerance to the colonoscopy | from colonoscopy up to 24 hours after colonoscopy | Tolerance to the colonoscopy will be measured by VAS during the colonoscopy, 30 minutes after colonoscopy and 24 hours after colonoscopy |
| Percentage of complete/incomplete colonoscopies and reprogramming | After the colonoscopy | Evaluation of incomplete or inadequate bowel preparation will be assessed after performing the colonoscopy |
| Complications during and after the procedure | up to 24 hours after colonoscopy | — |
| Doses of sedation needed during the colonoscopy | During the colonoscopy process | Final dose will be calculated at the end of the procedure |
| Tolerance to the preparation | up to 48 hours | — |
| Endoscopic findings | during the colonoscopy | — |
Countries
Spain
Contacts
Primary ContactFélix Junquera, PhD
Outcome results
None listed