Backwards Examination of the Right Colon: A Back-to-back Study
Diagnostic Yield of Scope Retroflexion in the Right Colon: A Prospective Cohort Study
1 other identifier
interventional
674
1 country
1
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started May 2013
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2013
CompletedFirst Submitted
Initial submission to the registry
June 19, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2014
CompletedFirst Posted
Study publicly available on registry
July 20, 2016
CompletedJuly 20, 2016
July 1, 2016
7 months
June 19, 2013
July 16, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
number of additional identified polyps with right colon scope retroflexion
one week
Secondary Outcomes (2)
Change in colorectal cancer (CRC) surveillance intervals among screening-surveillance patients
one week
Rate of retroflexion-related adverse events.
one week
Study Arms (2)
right colon in retroflexion
ACTIVE COMPARATOR* polyp/adenoma detection * feasibility
right colon in forward view
ACTIVE COMPARATORpolyp/adenoma detection
Interventions
examination of the right colon with scope retroflexion
Eligibility Criteria
You may qualify if:
- patients undergoing elective colonoscopy in a Attikon University General Hospital.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Attikon Hospitallead
Study Sites (1)
Attikon University General Hospital
Haidari, Attica, 12462, Greece
Related Publications (2)
van Rijn JC, Reitsma JB, Stoker J, Bossuyt PM, van Deventer SJ, Dekker E. Polyp miss rate determined by tandem colonoscopy: a systematic review. Am J Gastroenterol. 2006 Feb;101(2):343-50. doi: 10.1111/j.1572-0241.2006.00390.x.
PMID: 16454841BACKGROUNDVemulapalli KC, Rex DK. Evolving techniques in colonoscopy. Curr Opin Gastroenterol. 2011 Sep;27(5):430-8. doi: 10.1097/MOG.0b013e328349cfc0.
PMID: 21785352BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Konstantinos Triantafyllou, Prof
Hepatogastroenterology Unit, 2nd Department of Internal Medicine and Research Institute, Attikon University General Hospital, University of Athens, Greece
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Dr.
Study Record Dates
First Submitted
June 19, 2013
First Posted
July 20, 2016
Study Start
May 1, 2013
Primary Completion
December 1, 2013
Study Completion
February 1, 2014
Last Updated
July 20, 2016
Record last verified: 2016-07