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

University of British Columbia

Status: Completed

Conditions: Colon Polyps

Treatments: Other: No intervention

Study type: Observational

Funder types: Other

Identifiers

NCT01487356

H10-00312

Details and patient eligibility

About

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.

Full 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.

Enrollment: 802 patients

Sex: All

Volunteers: No Healthy Volunteers

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.

Trial design

802 participants in 1 patient group

Patients undergoing colonoscopy

Description:

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.

Treatment:

Other: No intervention