colonic polyp colorectal adenoma precursor coloncancer
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: *Aged 45 years and older *Scheduled for colonoscopy for on of the following indications: polyp surveillance, changed bowel habits and/or bloody stools or bowel complaints, FOBT+ screening, positive family history for CRC, abdominal pain *Signed written informed consent *ASA class I, II or III
Exclusion criteria
Exclusion criteria: *Polyposis syndromes *Inflammatory bowel disease (active disease or surveillance) *Previous partial colonic resection *Known conditions that require the use of a paediatric colonoscope (severe diverticulosis or abdominal surgery in the medical history) *Colonoscopy after polyp detection with CT-colonography *Known colonic stricture *Any acute indication for colonoscopy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mean number of adenomas per patient Adenoma detection rate (percentage of colonoscopies where at least one adenoma is found) | — |
Secondary
| Measure | Time frame |
|---|---|
| * Polyp detection rate & number of polyps per patient * Flat adenoma detection rate * Polyp retrieval rate * Cecal intubation rate and cecal intubation time * Discomfort during the procedure using the Gloucester Comfort scale * Subjective difficulty of the procedure as assessed by the endoscopist * Complication rate | — |
Countries
Netherlands