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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Multidisciplinary approach | Experimental | The multidisciplinary approach will include: Education Fiber free diet Bisacodyl: 10 mg 2 days before the procedure, 20 mg the day before the procedure and 10 mg 3 hours before the procedure Adjuvants: Olive Oil:60 mL/Apple Juice: 200 mL PEG: 1 L the night before the procedure and 1 L 3 hours before the procedure |
|
| Conventional approach | Active Comparator | The conventional approach will include: Education Fiber free diet Polyethylene glycol (PEG): 2 L the night before the procedure, 2 L 3 hours before the procedure |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Education | Behavioral |
| ||
| Fiber free diet |
| Measure | Description | Time Frame |
|---|---|---|
| percentage of patients with adequate bowel preparation | 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) | at the time of performing the colonoscopy |
| Measure | Description | Time Frame |
|---|---|---|
| Percentage of patients with adequate bowel preparation by bowel segments | The boston scale will be assessed by the investigators during the procedure. | At the time of performing the colonoscopy |
| Tolerance to the colonoscopy |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Félix Junquera, PhD | Contact | 34937458320 | fjunquera@tauli.cat |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital de Sabadell | Sabadell | Barcelona | 08208 | Spain |
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| ID | Term |
|---|---|
| D004522 | Educational Status |
| D011092 | Polyethylene Glycols |
| D001726 | Bisacodyl |
| ID | Term |
|---|---|
| D012959 | Socioeconomic Factors |
| D011154 | Population Characteristics |
| D005026 | Ethylene Glycols |
| D006018 | Glycols |
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| Other |
|
| Adjuvants | Dietary Supplement |
|
| Polyethylene glycol (PEG) | Drug |
|
| Bisacodyl | Drug |
|
Tolerance to the colonoscopy will be measured by VAS during the colonoscopy, 30 minutes after colonoscopy and 24 hours after colonoscopy
| from colonoscopy up to 24 hours after colonoscopy |
| Percentage of complete/incomplete colonoscopies and reprogramming | Evaluation of incomplete or inadequate bowel preparation will be assessed after performing the colonoscopy | After the colonoscopy |
| Complications during and after the procedure | up to 24 hours after colonoscopy |
| Doses of sedation needed during the colonoscopy | Final dose will be calculated at the end of the procedure | During the colonoscopy process |
| Tolerance to the preparation | up to 48 hours |
| Endoscopic findings | during the colonoscopy |
| D000438 |
| Alcohols |
| D009930 | Organic Chemicals |
| D011108 | Polymers |
| D046911 | Macromolecular Substances |
| D001697 | Biomedical and Dental Materials |
| D008420 | Manufactured Materials |
| D013676 | Technology, Industry, and Agriculture |
| D003408 | Cresols |
| D010636 | Phenols |
| D001555 | Benzene Derivatives |
| D006841 | Hydrocarbons, Aromatic |
| D006844 | Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |