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OpenTrials
Completed

NCT Number: NCT01487356

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

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.

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Key information

Conditions

Colon Polyps Colonic Polyps Intestinal Polyps Pathological Conditions, Anatomical Pathological Conditions, Signs and Symptoms Polyps

Sex eligibility

All sexes

Study type

Observational

Primary location

St. Paul's Hospital

Vancouver, British Columbia, V6Z 1Y6, Canada

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

No intervention

Other

Colonoscopies were conducted as per the endoscopist's usual practice. No change in protocol was expected.

Sponsors and collaborators

Lead sponsor

University of British Columbia

Other

Registry information

Important dates

Study start
2008
Primary completion
2009
Study completion
2009
First posted
Dec 7, 2011
Registry last updated
Dec 7, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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