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

Completed

• Conditions: Colon Polyps
• Interventions: Other: No intervention

• Registration Number: NCT01487356
• Lead Sponsor: University of British Columbia

Brief Summary

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.

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.

Study Timeline

• Study Start: 2008-05
• Primary Completion: 2009-06
• Study Completion: 2009-06
• Study First Submitted: 2011-08-03
• Status Verified: 2011-12
• Study First Submitted QC: 2011-12-05
• Last Update Submitted: 2011-12-05
• Study First Posted: 2011-12-07
• Last Update Posted: 2011-12-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 802

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.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Patients undergoing colonoscopy	No intervention	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.

Trial Locations

Locations (1)

St. Paul's Hospital; 🇨🇦 Vancouver, British Columbia, Canada