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Factors Influencing Quality of Bowel Cleansing for Colonoscopy in Patients With Colorectal Cancer Surgery; Prospective Observational Study

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. Identifier: NCT02139475
Recruitment Status : Terminated (All the patients who had been targeted were registered.)
First Posted : May 15, 2014
Last Update Posted : March 29, 2019
Information provided by (Responsible Party):
Yonsei University

Brief Summary:

The aim of this study is to clarify the factors influencing quality of bowel cleansing for colonoscopy in patients with colorectal cancer surgery and confirm the adequate bowel cleaning method for patients with colorectal cancer surgery. Through this, ultimately in patients with a history of colorectal cancer who have high risk of colorectal cancer, it could be possible to detect cancerous lesions early and increase the survival rate.

This study is based on observational study Subjects are the patients with colorectal cancer surgery who visits the out patients clinic for follow-up colonoscopy The patient's medical records on the basis of information collected at the point of the colonoscopy performed Quality of bowel cleansing is calculated with the Boston bowel preparation scale Patient compliance and satisfaction are measured.

Condition or disease Intervention/treatment
Colorectal Cancer Procedure: Colonoscopy

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Study Type : Observational
Actual Enrollment : 273 participants
Observational Model: Cohort
Time Perspective: Prospective
Study Start Date : December 2013
Actual Primary Completion Date : February 2017
Actual Study Completion Date : February 2017

Resource links provided by the National Library of Medicine

Group/Cohort Intervention/treatment
patients undergoing colonoscopy after colorectal cancer surgery
Procedure: Colonoscopy

Primary Outcome Measures :
  1. Boston bowel preparation scale (BBPS) [ Time Frame: 1 hour ]
    In this scale, the colon is divided in three segments: the right side (including cecum and ascending colon), the transverse colon (including the flexures) and the left sided colon, which includes the descending colon, sigmoid and rectum. Mucosal view should be scored after cleansing maneuvers like suctioning or washing have been performed. For all three sections cleansing is assessed and given a score ranging from 0 to 3. Therefore, the maximum BBPS score for a perfectly clean colon without any residual liquid is 9 and the minimum BBPS score for an unprepared colon is 0. BBPS score ≥6 in considered an adequate bowel preparation.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   20 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
patients undergoing colonoscopy after colorectal cancer surgery

Inclusion Criteria:

  • age ≥ 20
  • patients who underwent colorectal cancer surgery
  • patients who underwent follow-up colonoscopy as a conventional medical procedures

Exclusion Criteria:

  • age < 20
  • patients who have ileus or bowel obstruction
  • patients in pregnant status
  • Patients who did not consent to research

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 identifier (NCT number): NCT02139475

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Korea, Republic of
Severance hospital
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University
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Responsible Party: Yonsei University Identifier: NCT02139475    
Other Study ID Numbers: 4-2013-0772
First Posted: May 15, 2014    Key Record Dates
Last Update Posted: March 29, 2019
Last Verified: December 2017
Keywords provided by Yonsei University:
bowel cleansing, colorectal cancer surgery
Additional relevant MeSH terms:
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Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases
Gastrointestinal Diseases
Colonic Diseases
Intestinal Diseases
Rectal Diseases