Bowel Preparation, Ottawa Score
Conditions
Keywords
bowel preparation, Ottawa Score
Brief summary
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.
Interventions
OTHERBowel preparation instructions
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.
Sponsors
Air Force Military Medical University, China
Study design
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients aged 18-90 years old who undergoing colonoscopy
Exclusion criteria
* failed colonoscopy because of technical chanllenge or poor tolerance of patients * history of colorectal surgery * prior finding of severe colonic stricture or obstructing tumor * dysphagia * compromised swallowing reflex or mental status * significant gastroparesis or gastric outlet obstruction or ileum * known or suspected bowel obstruction or perforation * pregnancy * unable to give informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Adequate bowel preparation quality at the time of colonoscopy defined by Ottawa score<6 | up to 4 months | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Polyp detection rate | up to 4 months | The proportion of participants with at least one polyp in each group |
Countries
China
Outcome results
None listed