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Spots Global Cancer Trial Database for Comparison Between White Light Endoscopy and Bright Narrow Band Imaging in Diagnosis Colonic Adenomas.

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Trial Identification

Brief Title: Comparison Between White Light Endoscopy and Bright Narrow Band Imaging in Diagnosis Colonic Adenomas.

Official Title: A Randomised Comparison Between White Light Endoscopy (WLE) and Bright Narrow Band Imaging (B-NBI) in the Diagnosis of Colonic Adenomas in Asymptomatic Subjects Undergoing Screening Colonoscopy.

Study ID: NCT01737567

Study Description

Brief Summary: Removal of colorectal adenomas prevents the occurence of colorectal cancers. The use of chromo-endoscopy has been shown to improve the detection of flat adenomas. Narrow band imaging enables endoscopists to accurately describe the pit pattern of adenomas. By comparing White Light Endoscopy and Bright Narrow Band Imaging it will show if there is any comparable advantage to using one or the other for lesion detection and assessment.

Detailed Description: Removal of colorectal adenomas prevents occurrence of cancers \[1\]. It is recognized that colonoscopy can miss colorectal adenomas and early cancers \[2\]. There is a need to further improve performance of colonoscopy. The use of chromoendoscopy has been shown to improve detection of flat adenomas \[3\]. Narrow band imaging was introduced in year 2006. It is similar to chromoendoscopy in that it provides more mucosal details. This enables endoscopists to accurately describe the pit pattern of adenomas. NBI has been used as a substitute to chromoendoscopy. In pooled analysis, NBI is comparable to chromoendoscopy in their sensitivity and specificity in the diagnosis of malignant colorectal adenomas \[4\]. Unfortunately, the use of NBI has not been shown to conclusively improve rate of colorectal adenoma detection. Two of 3 randomized trials that compared WLE to NBI showed a higher adenoma detection rate with the use of NBI \[5, 6\]. In a study by Rex et al., the rate was however similar with either modality. In a pooled analysis, NBI was only marginally better than WLE \[7\]. The effective use of NBI depends on the quality of bowel preparation and the experience of endoscopist. In the presence of fecal matters, NBI tends to be dark and detection of small adenomas becomes difficult. The prototype bright NBI coupled with high definition resolution is likely to overcome this drawback of original NBI.

Keywords

Eligibility

Minimum Age: 50 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: Yes

Locations

Westmead Endoscopy Unit, Westmead, New South Wales, Australia

Contact Details

Useful links and downloads for this trial

Clinicaltrials.gov

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