The Effect of Bowel Preparation Status on the Polyp Missing Rate

Colonoscopy Clinical Trial

Official title: The Effect of Bowel Preparation Status on the Polyp Missing Rate During Colonoscopy: Prospective Study Using Tandem Colonoscopic Evaluation

Status Completed

Clinical Trial Summary

High quality bowel cleaning preparation was most important prerequisites of a accurate colonoscopy, because even a small amount of residual fecal matter can obscure small polyps and increase unnecessary procedure time. Until now, several studies evaluated the impact of bowel preparation on the quality of colonoscopy using comparison of the polyp detection rate in patients with adequate bowel preparation status to that in patients with inadequate bowel preparation status during colonoscopy. However, there was no direct measurement the effect bowel preparation status on the polyp missing rate, the quality of colonoscopy, using tandem colonoscopic evaluation in prospective setting.

Clinical Trial Description

1. Study flow

1. All patients perform Colonoscopy

• record the polyp size, shape, location and number

• record the factors affecting polyp missing rate

• Patients' age / gender

• Indication of colonoscopy

• colonoscopist career

• colonoscopy withdrawal time

• bowel preparation status according to scale of U.S. Multi-Society Task Force on colorectal cancer, Aronchick's scale and Ottawa bowel preparation quality scale

2. the patients needed or wanted to 2nd stage colonoscopic polypectomy (2nd stage polypectomy was performed within 6 month)

• record additionally detected polyp - size, shape, location and number ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

• Bowel Preparation
• Colonoscopy
• Colorectal Polyps
• Polyp Missing Rate
• Polyps

• NCT number: NCT00988676
• Study type: Observational
• Source: Konkuk University Hospital
• Status: Completed
• Phase: N/A
• Start date: May 2009
• Completion date: March 2010