Backwards Examination of the Right Colon: A Back-to-back Study

Attikon University Hospital

Status: Completed

Conditions: Colon Neoplasms

Treatments: Procedure: retroflexion; Procedure: forward view

Study type: Interventional

Funder types: Other

Identifiers

NCT02838186

Retro-2013

Details and patient eligibility

About

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.

Full 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.

Enrollment: 674 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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674 participants in 2 patient groups

right colon in retroflexion

Active Comparator group

Description:

* polyp/adenoma detection * feasibility

Treatment:

Procedure: retroflexion

right colon in forward view

Active Comparator group

Description:

polyp/adenoma detection

Treatment:

Procedure: forward view