Adenoma Detection Rate With a New Pediatric Colonoscope With a Short Turn Radius (Pentax Retroview) Compared With a Standard Pentax Pediatric Colonoscope

Massachusetts General Hospital283 enrolled

Overview

The purpose of this study is to determine whether the new colonoscope that provides both a traditional and a retrograde view (bending 180 degrees to look behind itself) of the colon can detect more polyps than a standard colonoscope that only provides a forward-facing view. The investigators wish to effectively demonstrate the utility of the new colonoscope (Pentax Retroview Colonoscope) as the objective of this study is to determine polyp and adenoma detection rates in human subjects undergoing colonoscopy for polyp surveillance.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Enrollment

283

Conditions

Colonoscopy

Interventions

Conventional Pediatric Colonoscope

Eligibility

Sex: ALLMin age: 40 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Ability to provide Informed Consent * Age \> 40 * Surveillance Colonoscopy (History of Adenomas) Exclusion Criteria: * Poor or Fair Bowel Prep * Difficult First Insertion * Familial Polyposis * Inflammatory Bowel Disease * Pregnancy * Active GI Bleeding * Prior colonic or rectal resection * Conserved Sattus * Colonoscopy less than 3 years ago * Screening Colonoscopy * Colonoscopy done to evaluate systems like abdominal pain, diarrhea, constipation, change in bowel habits

Outcomes

Primary Outcomes

Percentage of Patients With At Least One Adenoma

Compare adenoma detection rate between patients undergoing a colonoscopy with Pentax Retroview colonoscope and pediatric colonoscope.

Time frame: 1 hour

Secondary Outcomes

Overall Polyp Detection Rate

Compare polyp detection rate (percent of patients with at least one polyp detected) between patients undergoing a colonoscopy with Pentax Retroview colonoscope and pediatric colonoscope.

Time frame: 1 hour

Mean Number of Adenomas Identified Per Patient With Polyps

Compare average number of adenomas found per patient with polyps between patients undergoing a colonoscopy with Pentax Retroview colonoscope and pediatric colonoscope.

Time frame: 1 hour