Narrow Band Imaging for Diagnosis of Proximal Serrated Polyps

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

360 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-10-31

Study Completion Date

2013-10-31

Brief Summary

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Although colonoscopy is considered the gold standard for diagnosis of colonic polyps, the missed rate for colonic adenoma ranged from 15-32%. In particular, missed colonic polyps in the right side colon have been suggested to be the cause for interval cancer that developed after a prior negative colonoscopy.

Different endoscopic image enhanced modules like the narrow band imaging (NBI) have been developed to improve colonic polyp detection. However, it remains controversial whether the previous version of NBI helps to improve colonic polyp detection. The new generation colonoscope is equipped with high definition and improved narrow band imaging (NBI) which gives at least twice the viewable distance and contrast. The images obtained are far brighter with better resolution than the previous version. It however remains to be determined whether this enhanced imaging technique could help to improve colonic polyps detection.

Hypothesis:

The new generation NBI increases the detection rate of proximal serrated polyps and reduces the missed rate of all colorectal polyps.

Aims:

* To determine whether the new generation NBI improve the detection rate of proximal serrated polyps.
* To determine whether the new generation NBI improve the detection rate of all colorectal adenoma and polyps.
* To determine whether the new generation NBI reduce the miss rate of colorectal adenoma and polyps.

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Detailed Description

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Design:

Prospective randomized trial

Inclusion:

• All patients scheduled to have screening or scheduled colonoscopy

Exclusion:

* History of Crohn's or ulcerative colitis
* Surveillance for known polyposis syndrome (FAP or HNPCC)
* Previous colonic resection (except appendectomy)
* Refused consent
* Deranged coagulation profile that preclude polypectomy

Conditions

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Colonic Neoplasm

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Narrow band imaging

Colonoscopy with new narrow band imaging

Narrow band imaging

Intervention Type OTHER

Colonoscopy with new narrow band imaging

Interventions

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Narrow band imaging

Colonoscopy with new narrow band imaging

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* All patients scheduled to have colonoscopy

Exclusion Criteria

* History of Crohn's or ulcerative colitis
* Surveillance for known polyposis syndrome (FAP or HNPCC)
* Previous colonic resection (except appendectomy)
* Refused consent
* Deranged coagulation profile that preclude polypectomy

Minimum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes