colorectal adenoma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Outpatients and inpatients aged 30-75 years, colonoscopy at seven collaborating medical centers with more than 1 follow-up interval at recommended follow-up intervals, colonoscopy and follow-up by senior endoscopists, recurrent polyps consistent with adenoma.
Exclusion criteria
Exclusion criteria: Incomplete personal or colonoscopy related information, familial adenomatous polyposis, history of colorectal cancer or colorectal surgery, history of inflammatory bowel disease, failed to complete a full colonoscopy, those who did not complete all the polypectomy in the previous examination, those who failed to pass bowel preparation, withdrawal time less than 6 minutes, and those who took folic acid, aspirin and other drugs for a long time.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Recurrence rate of colorectal precancerous lesions; | — |
Secondary
| Measure | Time frame |
|---|---|
| Detection rate of colorectal cancer and precancerous lesions; | — |
Countries
China
Contacts
First Hospital of Shanxi Medical University