Comparison of Transparent Retractable Extension Device and Narrow Band Imaging on Colorectal Adenoma Detection

Showa Inan General Hospital

Status: Completed

Conditions: Colorectal Cancer Screening

Treatments: Device: TRE vs. NBI

Study type: Interventional

Funder types: Other

Identifiers

NCT00765180

TRE2

Details and patient eligibility

About

The investigators previously reported that colonoscopy with a transparent retractable extension (TRE) device improved the adenoma detection rate without affecting intubation and withdrawal times. On the other hand, colonoscopy using narrow band imaging (NBI) is expected to lead to higher rate s of adenoma detection. The investigators compared the effects of TRE device on colorectal adenoma detection with those of NBI.

Enrollment: 200 patients

Sex: All

Ages: 20 to 100 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Exclusion Criteria:

• Age less than 20 years old
• Pregnant
• American Society of Anesthesiologists class III and IV
• Overweight (body weight > 100 kg)
• Allergic to the drugs used or its components (soybeans or eggs)
• Poor bowel preparation
• Previous colorectal surgical resection

Trial design

Primary purpose: Diagnostic

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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200 participants in 2 patient groups

2

Active Comparator group

Description:

The investigators evaluate beneficial effect of colonoscopy using narrow band imaging (NBI) for colorectal adenoma detection.

Treatment:

Device: TRE vs. NBI

1

Experimental group

Description:

The investigators evaluate the beneficial effect of colonoscopy with a transparent retractable extension (TRE) device on colorectal adenoma detection rate.

Treatment:

Device: TRE vs. NBI