Adenoma Detection by Polypectomy During Both Insertion and Withdrawal

Not Applicable

Completed

• Conditions: Adenoma of Large Intestine
• Interventions: Procedure: Only withdrawal; Procedure: Both insertion and withdrawal

• Registration Number: NCT01925833
• Lead Sponsor: The Catholic University of Korea

Brief Summary

Standard method of colonoscopy is to insert the colonoscope rapidly to reach the cecum, with careful inspection and polypectomy during the withdrawal phase. However, small polyps (e.g. \<1cm) seen during insertion phase are difficult to find during withdrawal phase. Also, colon is in different conformation during insertion and withdrawal phases. We think careful inspection and polypectomy during both insertion and withdrawal can improve adenoma detection rate.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2013-08-16
• Study First Submitted QC: 2013-08-16
• Study First Posted: 2013-08-20
• Study Start: 2013-09
• Primary Completion: 2016-07
• Study Completion: 2016-12
• Status Verified: 2019-02
• Last Update Submitted: 2019-02-09
• Last Update Posted: 2019-02-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1142

Inclusion Criteria

• Patient undergoing screening or surveillance colonoscopy

Exclusion Criteria

• Previous colorectal resection, Polyposis syndrome, Inflammatory bowel disease

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Only withdrawal	Only withdrawal	-
Both insertion and withdrawal	Both insertion and withdrawal	-

Primary Outcome Measures

Name	Time	Method
Adenoma detection rate	4 weeks

Secondary Outcome Measures

Name	Time	Method
Number of adenoma per patient	4 weeks