Colonic polyps
Conditions
Interventions
Strategy A:None
Strategy B:None
Sponsors
The first hospital of Shanxi Medical University
Eligibility
Sex/Gender
All
Age
50 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. 50 years of age or older and 75 years of age or younger; 2. Never had a colonoscopy or undergone colonoscopic polypectomy prior to the first colonoscopy; 3. For a first-time colonoscopy, bowel preparation is adequate; the scope reaches the cecum; the withdrawal time exceeds 6 minutes; and the operator is satisfied. (A colonoscopy meeting the above criteria is defined as a high-quality colonoscopy. This definition is more practical than the USMSFT definition.); 4. A high-risk adenoma was identified during the initial colonoscopy and completely resected endoscopically. (High-risk adenoma is defined as: 3 to 10 non-advanced adenomas, or at least 1 advanced adenoma. The definition of high-risk adenoma used in this study differs slightly from that of the USMSTF: it excludes colorectal cancer and cases in which 11 or more adenomas were found.)
Exclusion criteria
Exclusion criteria: 1.History of familial adenomatous polyposis. 2.Medical history of Lynch syndrome. 3.History of inflammatory bowel disease. 4.History of colorectal cancer. 5.History of colorectal surgery. 6.The pathology of the polyps found during the first colonoscopy was inconclusive, making it impossible to determine whether they were high-risk adenomas. 7.More than 10 adenomas (excluding 10) were detected during the initial colonoscopy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Detection rate of advanced neoplasia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Colorectal cancer incidence; | — |
Countries
China
Contacts
Public ContactRen Junjie
The first hospital of Shanxi Medical University
Outcome results
None listed