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The Effect of Bowel Preparation Status on the Polyp Missing Rate

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00988676
First Posted: October 2, 2009
Last Update Posted: April 20, 2010
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Collaborators:
Konkuk University Medical Center
Konkuk University
Information provided by:
Konkuk University Hospital
  Purpose
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.

Condition
Colorectal Polyps Colonoscopy Bowel Preparation Polyp Missing Rate

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: The Effect of Bowel Preparation Status on the Polyp Missing Rate During Colonoscopy: Prospective Study Using Tandem Colonoscopic Evaluation

Resource links provided by NLM:


Further study details as provided by Konkuk University Hospital:

Enrollment: 200
Study Start Date: May 2009
Study Completion Date: March 2010
Primary Completion Date: November 2009 (Final data collection date for primary outcome measure)
Groups/Cohorts
colonoscopy

Detailed 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
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
The patients underwent colonoscopy and 2nd stage colonoscopic polypectomy at Konkuk University Medical Center
Criteria

Inclusion Criteria:

  • The patients underwent colonoscopy and 2nd stage colonoscopic polypectomy at Konkuk University Medical Center

Exclusion Criteria:

  • Colonoscopy was not reached the caecum
  • The patients with 10 or more polyps (who suspected polyposis syndrome)
  • Bowel preparation was inadequate when 2nd stage colonoscopic polypectomy
  • The patients with inflammatory bowel disease or suspected inflammatory bowel disease
  • The patients had a history of bowel resection
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00988676


Locations
Korea, Republic of
Konkuk University Medical Center
Seoul, Korea, Republic of
Sponsors and Collaborators
Konkuk University Hospital
Konkuk University Medical Center
Konkuk University
Investigators
Study Director: Sung Noh Hong, M.D. Konkuk University Medical Center; Konkuk University School of Medicine
  More Information

Responsible Party: Sung Noh Hong, Konkuk University Medical Center; Konkuk University School of Medicine; Konkuk University
ClinicalTrials.gov Identifier: NCT00988676     History of Changes
Other Study ID Numbers: KUH1010135
First Submitted: October 1, 2009
First Posted: October 2, 2009
Last Update Posted: April 20, 2010
Last Verified: October 2009

Additional relevant MeSH terms:
Polyps
Pathological Conditions, Anatomical