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Colorectal Polypectomy Upon Insertion And Withdrawal Or Upon Withdrawal Only?

NCT01607827 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 400

Last updated 2012-06-19

No results posted yet for this study

Summary

The investigators aim to assess the procedure time and miss rate of polyps when performing polypectomy in the colon on the way up\* and down\*\* or only on the way down\*\*.

(\* advancing the scope to the cecum, \*\* pulling back the scope after intubation of the cecum). Our hypothesis is that using the strategy to remove all visible polyps firstly on the way up and secondly on the way down is less time consuming and misses less polyps as with the strategy to remove polyps only on the way down.

Conditions

  • Colorectal Polyps

Interventions

PROCEDURE

Polyp removal upon insertion and withdrawal

Endoscopic procedures: All polypectomies in the study groups were performed using the same techniques as in the standard care of non-study patients, using snare loops, hot biopsy forceps, with and without submucosal injection of saline/epinephrine. Polyps larger than 3 mm were removed by snare, polyps smaller than 4 mm were removed by cold biopsy. There were no differences upon insertion or withdrawal. The endoscopist removed all visible polyps instantly regardless whether advancing the instrument to the cecum or pulling back.

PROCEDURE

Polyp removal upon withdrawal only

Endoscopic procedures: All polypectomies in the study groups were performed using the same techniques as in the standard care of non-study patients, using snare loops, hot biopsy forceps, with and without submucosal injection of saline/epinephrine. Polyps larger than 3 mm were removed by snare, polyps smaller than 4 mm were removed by cold biopsy. There were no differences upon insertion or withdrawal. The endoscopist advanced the endoscope to the cecum without removing polyps. Upon withdrawal, all visible polyps were removed successively by standard techniques.

Sponsors & Collaborators

  • University of Zurich

    lead OTHER

Principal Investigators

  • Stephan M. Wildi, MD · University of Zurich

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2004-04-30
Primary Completion
2007-03-31
Completion
2007-04-30

Countries

  • Switzerland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01607827 on ClinicalTrials.gov