Factors Associated With Short Withdrawal Time and Polyp Detection Rate During Colonoscopy

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
University of British Columbia
ClinicalTrials.gov Identifier:
NCT01487356
First received: August 3, 2011
Last updated: December 5, 2011
Last verified: December 2011
  Purpose

Colonoscopy withdrawal times are a critical element in determining quality of colonoscopy; however, few studies have evaluated specific factors that may influence the duration of withdrawal, and specifically short withdrawal times. Other factors affecting polyp detection rate, one element of quality of colonoscopy, also need further study. By collecting data on hundreds of colonoscopies performed by 9 endoscopists, our goal was to identify factors associated with withdrawal time, inappropriately short withdrawal times, and polyp detection rate during colonoscopy.


Condition Intervention
Colon Polyps
Other: No intervention

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Factors Associated With Short Withdrawal Time and Polyp Detection Rate During Colonoscopy

Resource links provided by NLM:


Further study details as provided by University of British Columbia:

Enrollment: 802
Study Start Date: May 2008
Study Completion Date: June 2009
Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Patients undergoing colonoscopy
Data was collected on all adult patients undergoing outpatient colonoscopy at St. Paul's Hospital from May 2008 to June 2009. Exclusion criteria were prior colon resection and repeat colonoscopy for the purpose of endoscopic therapy for known lesions.
Other: No intervention
Colonoscopies were conducted as per the endoscopist's usual practice. No change in protocol was expected.

Detailed Description:

Background:

Colonoscopy withdrawal times are a critical element in determining quality of colonoscopy; however, few studies have evaluated specific factors that may influence the duration of withdrawal, and specifically short withdrawal times. Other factors affecting polyp detection rate, one element of quality of colonoscopy, also need further study.

Objective:

To identify factors associated with withdrawal time, inappropriately short withdrawal times, and polyp detection rate during colonoscopy.

Design:

Data were prospectively collected (05/08-06/09) on 802 colonoscopies conducted by 9 blinded endoscopists, including patient age and sex, indication, colonoscope insertion and withdrawal time, biopsies performed, number/size of polyps and method of resection, bowel preparation quality, time of day, day of week, endoscopist, position of the procedure within the endoscopist's slate, and call status of the endoscopist.

Setting:

This study was conducted at a single tertiary care hospital, St. Paul's Hospital, in Vancouver, British Columbia.

  Eligibility

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

All adult patients undergoing colonoscopy at St. Paul's Hospital in Vancouver, BC.

Criteria

Inclusion Criteria:

  • All adult patients undergoing colonoscopy at St. Paul's Hospital in Vancouver, BC.

Exclusion Criteria:

  • Exclusion criteria were prior colon resection and repeat colonoscopy for the purpose of endoscopic therapy for known lesions.
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01487356

Locations
Canada, British Columbia
St. Paul's Hospital
Vancouver, British Columbia, Canada, V6Z 1Y6
Sponsors and Collaborators
University of British Columbia
Investigators
Principal Investigator: Rob Enns, MD University of British Columbia
  More Information

No publications provided

Responsible Party: University of British Columbia
ClinicalTrials.gov Identifier: NCT01487356     History of Changes
Other Study ID Numbers: H10-00312
Study First Received: August 3, 2011
Last Updated: December 5, 2011
Health Authority: Canada: Health Canada

Keywords provided by University of British Columbia:
Colonoscopy
quality assurance
withdrawal time
polyp detection rate

Additional relevant MeSH terms:
Colonic Polyps
Polyps
Intestinal Polyps
Pathological Conditions, Anatomical

ClinicalTrials.gov processed this record on September 14, 2014