MedTrace Logo

Left-colon WEC May Reduce Insertion Time Compared With Whole-colon WEC.

NCT01735266 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 300

Last updated 2013-09-12

No results posted yet for this study

Summary

In most of situation, left colon (especially SD junction) is considered the most difficult part of colonoscopy, where endoscopist may encounter difficulty for scope insertion and patients may feel pain or uncomfortable. It is suggested more than half of the whole time for scope insertion should be used in left colon. Many methods, such as water immersion, abdominal palpation, have been used to facilitate insertion in left colon.

Colonoscopy with whole-colon water exchange method has been shown to be useful for reducing medication used, pain experienced during colonoscopy, increasing the success rate of cecum intubation and adenoma detection rate in sedated and unsedated patients undergoing screening colonoscopy. Exchange of water during scope insertion minimizes loop formation and prevents lengthening and distension of the colon during colonoscopy. This will facilitate the colonoscopy in average or difficult colonoscopy. However, it is not known whether the benefits of water exchange method of colonoscopy was mainly due to its effect on the left colon.

We hypothesized that left-colon water exchange colonoscopy (LWE) may have the similar effect regarding the maximal pain score and mean pain score in unsedated patients compared with whole-colon water exchange colonoscopy (WWE). At the mean time, LWE may reduce the insertion time compared with WWE. Here we performed a prospective, randomized controlled study to investigate the efficacies of whole-colon water exchange, left-colon water exchange and air methods of colonoscopy on pain score and insertion time in unsedated outpatients.

Conditions

Interventions

OTHER

Air colonoscopy

Colonoscopy will be performed with conventional air insufflation during colonoscope insertion.

OTHER

Water exchange colonoscopy

Water exchange method (The air pump was turned off before colonoscopy. During colonoscope insertion, residual air in lumen was suctioned and 37°C water was infused into lumen to obtain lumen visualization) was used in whole or left colon. Air was insufflated until cecum was reached or appendix opening was seen.

Sponsors & Collaborators

  • Air Force Military Medical University, China

    lead OTHER

Principal Investigators

  • Yanglin Pan, M.D. · Air Force Military Medical University, China

Study Design

Allocation
RANDOMIZED
Purpose
SCREENING
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-05-31
Primary Completion
2013-08-31
Completion
2013-08-31

Countries

  • China

Study Locations

More Related Trials

Entities

Diseases

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 NCT01735266 on ClinicalTrials.gov