Colorectal disease
Conditions
Interventions
5-minute group:control the withdrawal time as 5-minute
6-minute group:control the withdrawal time as 6-minute
Sponsors
The Affiliated Wuxi People's Hospital of Nanjing Medical University
Eligibility
Sex/Gender
All
Age
45 Years to 75 Years
Inclusion criteria
Inclusion criteria: Patients under painless colonoscopy from 45-75 years who had been referred for diagnostic, screening colonoscopy or surveillance colonoscopy.
Exclusion criteria
Exclusion criteria: Patients with a history of IBD, CRC, Prior colonic or rectal resection, Familial polyposis, contraindication for biopsy or Poor bowel preparation(Boston Bowel Prep 10 minutes in first pass), because of safety considerations for an already prolonged tandem procedure [which can cause intestinal spasms, interfere with observation, and increase the risk of anesthesia and procedure].
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| adenoma detection rate;adenoma miss rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| adenoma per colonoscopy;detection rate of advanced adenomas;The average rate of missed adenoma diagnosis; | — |
Countries
China
Contacts
Public ContactYang Cheng
The Affiliated Wuxi People's Hospital of Nanjing Medical University
Outcome results
None listed