Effect of Single Colonoscopy on Colorectal Adenomas Detection

• Conditions: Colonic Polyps
• Interventions: Other: doctor experience

• Registration Number: NCT02693886
• Lead Sponsor: Wuxi People's Hospital

Brief Summary

Individualized colonoscopy withdrawal time is determined based on the different grade of physician experience and quality of bowel preparation.

Detailed Description

Not available

Study Timeline

• Status Verified: 2016-01
• Study First Submitted: 2016-01-27
• Study First Submitted QC: 2016-02-26
• Last Update Submitted: 2016-02-26
• Study First Posted: 2016-02-29
• Last Update Posted: 2016-02-29
• Study Start: 2016-04
• Primary Completion: 2017-12
• Study Completion: 2017-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 10000

Inclusion Criteria

1. Greater than the age of 40;
2. Pathology and endoscopic data recorded available and detailed;
3. Whole bowel staining endoscopy is not done.

Exclusion Criteria

1. Not reach the ileocecal junction;
2. Colorectal cancer;
3. Familial adenomatous polyposis;
4. Inflammatory bowel disease;
5. Part of the bowel resection.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
B group	doctor experience	Experience of endoscopist:between 1000 and 2000 cases
C group	doctor experience	Experience of endoscopist:between 500 and 1000 cases
A group	doctor experience	Experience of endoscopist: \>2000 cases
D group	doctor experience	Experience of endoscopist:\<500 cases

Primary Outcome Measures

Name	Time	Method
Detection rate of polyps in different withdraw time	through study completion, an average of 1 year

Secondary Outcome Measures

Name	Time	Method
Detection rate of polyps in different experiment levels of examiners	through study completion, an average of 1 year