Colon Neoplasms
Conditions
Keywords
colonoscopy, right colon retroflexion, adenoma detection rate, feasibility, surveillance interval
Brief summary
The aim of this study is to evaluate the examination of the proximal colon with the retroflexion colonoscopic technique in terms of feasibility and its possible additive contribution in the detection of important lesions, namely polyps and cancers.
Detailed description
The investigators prospectively examined the additional diagnostic yield of right colon examination with colonoscope retroflexion in consecutive, symptomatic and screening - surveillance patients. Right colon was examined in forward-view first and thereafter, retroflexion was performed to re-inspect it.
Interventions
PROCEDUREretroflexion
examination of the right colon with scope retroflexion
PROCEDUREforward view
examination of the right colon in forward view
Sponsors
Attikon Hospital
Study design
Allocation
NON_RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* patients undergoing elective colonoscopy in a Attikon University General Hospital.
Exclusion criteria
* patients aged \<18 and \>80 years; * right colectomy; * recent abdominalsurgery; * multiple diverticula of the right colon; * American Society of Anesthesiology (ASA) physical status classification grade IV; * inflammatory bowel disease and polyposis syndromes.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| number of additional identified polyps with right colon scope retroflexion | one week |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in colorectal cancer (CRC) surveillance intervals among screening-surveillance patients | one week | change: YES or NO |
| Rate of retroflexion-related adverse events. | one week | — |
Countries
Greece
Outcome results
None listed