Comparison of standard versus high definition colonoscopy for polyp detection

ISRCTN ISRCTN60128262
DOI https://doi.org/10.1186/ISRCTN60128262
Protocol serial number N/A
Sponsor Benizelion General Hospital (Greece)
Funder Benizelion General Hospital (Greece)
Submission date
28/07/2009
Registration date
04/09/2009
Last edited
04/09/2009
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Gregorios Paspatis
Scientific

Benizelion General Hospital
Knossou Avenue
Heraklion
71409
Greece

Study information

Primary study designInterventional
Study designRandomised controlled trial
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleComparison of standard versus high definition colonoscopy for polyp detection: a randomised controlled trial
Study objectivesWe sought to compare the performance of colonoscopy using a high definition (HD), wide-angle endoscope versus a standard colonoscope (SC) for the detection of polyps.
Ethics approval(s)Ethics Committee of the Benizelion General Hospital approved in July 2009
Health condition(s) or problem(s) studiedColorectal polyps, colonoscopy
InterventionIn the SC group, a standard-resolution, standard-angle (140°) videocolonoscope - Olympus (Tokyo, Japan) was used with a high-definition 1080-line screen - Olympus (OEV191H, Tokyo, Japan).

In the HD group, colonoscopy was performed with a wide-angle (170°), high-resolution videocolonoscope - Olympus (CFH180AL, Tokyo, Japan) with the same HD screen.
Intervention typeOther
Primary outcome measure(s)

Performance of the colonoscopy, measured 10/10/2008.

Key secondary outcome measure(s)

Detection of small polyps (less than or equal to 5 mm), measured 10/10/2009.

Completion date10/10/2008

Eligibility

Participant type(s)Patient
Age groupAdult
SexAll
Target sample size at registration390
Key inclusion criteriaPatients were eligible if they were aged 50 years and older, either sex
Key exclusion criteria1. Polyposis syndromes
2. Hereditary nonpolyposis colorectal cancer (CRC)
3. Previous surgical resection of the colon or rectum
4. Active anticoagulation
5. Inflammatory bowel disease
Date of first enrolment07/05/2008
Date of final enrolment10/10/2008

Locations

Countries of recruitment

  • Greece

Study participating centre

Benizelion General Hospital
Heraklion
71409
Greece

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes