Adenoma Detection Rate:NBI, AFI, Chromoscopic or Standard Endoscopy

Launched by LONDON NORTH WEST HEALTHCARE NHS TRUST · Nov 11, 2005

Keywords

ClinConnect Summary

Colorectal cancer is the second commonest cause of cancer death. In majority of cases it is preceeded by a precancerous lesion called an adenoma (commonly known as polyp). Detection and removal of adenomas has been shown to reduce the death rate from colorectal cancer. Despite of meticulous examination "a miss rate" for adenomas at colonoscopy ranges from 6-15% in back-to-back colonoscopy studies. The nature of the polyps, which as well as being pedunculated (cherry like) can also be flat, which makes it difficult to see and detect and may add to the"miss rate".

The factors that affect whe...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Patients with Familial adenomatous polyposis who have had ileo-rectal anastomosis and had 20 or less adenomas at previous surveillance examination
• Exclusion Criteria:
• • poor bowel preparation, unable or unwilling to give informed consent, under 18 years of age,those with more than 20 adenoma