Colonic Polyp, Colonoscopy, Constipation
Conditions
Keywords
Bowel preparation, Chewing gum, Enhanced instructions, WeChat, Colonoscopy
Brief summary
Patients with constipation are more likely to have poor bowel preparation quality due to slow gut motility and poor emptying ability. Gum chewing, as a proxy of sham feeding, is a very simple way used to accelerate gut motility. And a previous study found that enhanced instructions by WeChat could improve bowel preparation quality. Thus, investigators conducted a single-center randomized controlled trial to explore the effect of chewing gum combined with manual enhanced instructions by WeChat on the bowel preparation quality for colonoscopy in patients with constipation.
Detailed description
In this randomized controlled trial, consecutive outpatients with constipation for colonoscopy are screened and then randomized into two groups. All enrolled patients will receive 3 liter polyethylene glycol (PEG) for bowel preparation. Patients in the chewing gum and WeChat group (n = 75) are further advised to chew one piece of sugarless gum for 20 minutes after drinking each 1 liter PEG; additionally, they will receive enhanced instructions via WeChat before two days and one day of colonoscopy to further inform how to chew gum and highlight the importance of adequate bowel preparation. Patients in the control group (n = 75) are guided by regular instructions.
Interventions
OTHERChewing gum combined with WeChat enhanced instructions
Patients in the chewing gum and WeChat group are advised to chew one piece of sugarless gum for 20 minutes after drinking each 1 liter PEG. They also receive enhanced instructions via WeChat before two days and one day of colonoscopy to further inform how to chew gum and highlight the importance of adequate bowel preparation.
Sponsors
General Hospital of Shenyang Military Region
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. Patients undergoing colonoscopy at the Department of Gastroenterology of the General Hospital of Northern Theater Command. 2. Patients aged ≥18 years, no gender limitation. 3. Patients who sign informed consent. 4. Patients who are diagnosed with constipation.
Exclusion criteria
1. Patients who are pregnant or breastfeeding. 2. Patients who are allergic to polyethylene glycol. 3. Patients who are suspected with intestinal obstruction, stenosis or perforation. 4. Patients with mental illness. 5. Patients with serious heart, brain, liver, and kidney diseases. 6. Patients who use WeChat unconditionally by themselves or their family members. 7. Patients who are allergic to chewing gum related ingredients. 8. Patients with the history of colorectal surgery.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bowel preparation quality | During colonoscopy procedure, an average of 30 minutes | Bowel preparation quality is evaluated by the Boston bowel preparation scale (BBPS) score: Segment score 0: unprepared colon segment with mucosa not seen due to solid stool that cannot be cleared. Segment score 1: portion of mucosa of the colon segment seen, but other areas of the colon segment not well seen due to staining, residual stool and/or opaque liquid. Segment score 2: minor amount of residual staining, small fragments of stool and/or opaque liquid, but mucosa of colon segment seen well. Segment score 3: entire mucosa of colon segment seen well with no residual staining, small fragments of stool and/or opaque liquid. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The number of polyp and/or adenoma | During colonoscopy procedure, an average of 30 minutes | The number of polyp and/or adenoma is defined as the number of adenoma/polyp detected during colonoscopy. |
| Polyp and/or adenoma detection rate | During colonoscopy procedure, an average of 30 minutes | Polyp and/or adenoma detection rate (PDR/ADR) is defined as the proportion of patients with at least one histologically confirmed adenoma/polyp detected during colonoscopy. |
| Adverse events | During colonoscopy procedure, an average of 30 minutes | Adverse events are defined as the occurrence of gastrointestinal symptoms during bowel preparation, including nausea, vomiting, abdominal pain, and bloating. |
| Cecal intubation time | During colonoscopy procedure, an average of 30 minutes | Cecal intubation time (CIT) is defined as the time from the insertion of the colonoscope tip into the anal verge until reaching the cecal base or cecal end. |
Countries
China
Outcome results
None listed