Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Colonoscopy is the current standard method for evaluating the colorectal diseases. Adequate bowel preparation is essential for optimal visualization of the colorectal mucosa. However, inadequate bowel preparation (IBP) had been unexpectedly reported in up to 30% of patients undergoing colonoscopy. Many factors may influence the quality of bowel preparation, which can be broadly categorized as patient-related or procedure-related. It has been shown that split-dose regimen or some modified educational strategies can improve the quality of bowel preparation. For the patients with possible IBP before the performing of colonoscopy, it may be better to repeat bowel preparation with modified or enhanced strategies in case of failed intubation, missed lesions or unnecessarily increased cost. Thus, it is important to set up a model to predict the quality of bowel preparation individually.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| training cohort | the training cohort was used to establish the bowel preparation score (BPS) |
| |
| validation cohort | the validation cohort was used to verify the BPS (bowel preparation score) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Bowel preparation instructions | Other | The same-day preparation method was used as previously reported. Briefly, all patients were instructed to have a regular diet for breakfast and lunch, but only clear liquids for dinner on the day before the colonoscopy. They were asked to drink two bags of PEG-ELP (polyethylene glycol electrolyte powder) dissolved in 2 L of water, or 45 mL of sodium phosphate be diluted in 240 mL of cool water follow with at least 1.5 L of water at 05:00-06:00 h within 2 h on the day of colonoscopy. Patients were encouraged to drink more clear liquids after purgatives for adequate hydration before colonoscopy. |
| Measure | Description | Time Frame |
|---|---|---|
| Adequate bowel preparation quality at the time of colonoscopy defined by Ottawa score<6 | Ottawa score：A)cleanliness of each part of the colon: 0=excellent 1=good 2=fair 3=poor 4=inadequate B)fluid in whole colon: small=0 moderate=1 large=2 The bowel preparation was considered inadequate if (1) inadequate visualization on colonoscopy defined by Ottawa score≥6; (2) the colonoscopy was cancelled because of poor bowel preparation or personal reasons. | up to 4 months |
| Measure | Description | Time Frame |
|---|---|---|
| Polyp detection rate | The proportion of participants with at least one polyp in each group | up to 4 months |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
This is a prospective study involving two tertiary centers in China. The patients of the training cohort were enrolled from the Endoscopy Center of Xijing Hospital of Digestive Diseases in China. The patients of the validation cohort were enrolled from the Shaanxi Second People's Hospital in China.
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Endoscopic center, Xijing Hospital of Digestive Diseases | Xi'an | Shaanxi | 710032 | China | ||
| Shaanxi Second People's Hospital |
Not provided
| Label | URL |
|---|---|
| Colonoscopy completion in a large safety net health care system | View source |
| Bowel preparation with split-dose polyethylene glycol before colonoscopy: a meta-analysis of randomized controlled trials | View source |
| Development and validation of a novel patient educational booklet to enhance colonoscopy preparation |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
|
| Xi'an |
| Shaanxi |
| 710032 |
| China |
| View source |
| Telephone-based re-education on the day before colonoscopy improves the quality of bowel preparation and the polyp detection rate: a prospective, colonoscopist-blinded, randomised, controlled study | View source |
| Impact of patient education with cartoon visual aids on the quality of bowel preparation for colonoscopy | View source |