Cathartics, Colonoscopy, Polyethylene Glycol
Conditions
Brief summary
High-quality colonoscopy is considered the gold standard for the detection and prevention of colorectal cancer, and its efficacy is predicated on optimal colon cleansing.However, about 18%-35% of patients were still reported to suffer inadequate bowel preparation. Although several predictive models exist, the current guideline indicates that there is insufficient evidence to recommend the use of a predictive model for clinical practice.
Interventions
no intervention
Sponsors
Study design
Eligibility
Inclusion criteria
* patients undergoing colonoscopy. * patients older than 18 years.
Exclusion criteria
* Emergency colonoscopy. * Have a serious medical condition, such as heart failure, acute liver failure, severe kidney disease (dialysis or predialysis patients) or New York heart association class iii-iv. * Pregnant or breastfeeding. * No bowel preparation or poor compliance (no bowel preparation as instructed or laxatives \< 90% of prescribed dose). * Refuse to sign informed consent. * The patient was rescheduled after the previous colonoscopy due to insufficient bowel preparation. * Temporarily change to colonoscopy for other reasons. * Incomplete colonoscopy due to insufficient parenteral preparation. * Lack of complete data.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| quality of bowel preparation | A colonoscopy procedure | The OBPS is a validated scoring system with scores between 0 and 14, where 0 is the best score. The score comprises a sub score 0-4 for each colon segment: right, transverse and rectosigmoid colon. In addition, a score 0-2 is added to indicate the total amount of luminal fluid. For all participants, OBPS score will be used when the colonscopy is inserting. |
Countries
China