Status:
UNKNOWN
Examining Techniques on Adenoma Miss Rate in Proximal Colon
Lead Sponsor:
Changhai Hospital
Conditions:
Colorectal Adenoma
Colorectal Polyp
Eligibility:
All Genders
45-80 years
Phase:
NA
Brief Summary
The primary aim of this study is \- to explore the usefulness of re-examination and retroflexion on adenoma miss rate (AMR) in the proximal colon. Other aims include to explore the data below when r...
Detailed Description
AMR = number of adenomas missing during the first examination/ total number of adenomas in both examinations = number of adenomas detected only in the second examination/(number of adenomas detected d...
Eligibility Criteria
Inclusion
- Patients between 45 and 80 years who undergo colonoscopy examination for screening, and who receive primary screening and get positive result
Exclusion
- Pregnant female patients
- Patients received colonoscopy in the past 5 years
- Patients who have history of colorectal cancer, colorectal polyposis, inflammatory bowel disease or heredity colorectal neoplasm syndrome such as familiar adenomatous polyposis, Lynch Syndrome and so on
- Patients who had previous abdominal surgery
- Patients who are known to have colonic stricture or obstructing tumor from the results of radiography (X ray, CT scan or barium enema)
- Patients who are presenting acute surgical conditions such as severe colitis, megacolon and active gastrointestinal bleeding
- Patients who have inadequate bowel preparation
- Patients who reject to participate in this study
Key Trial Info
Start Date :
December 1 2017
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
December 1 2019
Estimated Enrollment :
600 Patients enrolled
Trial Details
Trial ID
NCT03355443
Start Date
December 1 2017
End Date
December 1 2019
Last Update
November 28 2017
Active Locations (3)
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1
the Sixth affiliated Hospital of Sun Yat-Sen University
Guangzhou, Guangdong, China, 510655
2
Zhongshan Hospital affiliated to Fudan University
Shanghai, China, 200032
3
Tianjin Renmin Hospital
Tianjin, China, 300121