This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Patient Position and Impact on Colonoscopy Time

This study has been completed.
VA Office of Research and Development
Information provided by:
VA Connecticut Healthcare System Identifier:
First received: April 11, 2006
Last updated: NA
Last verified: April 2006
History: No changes posted

Colonoscopy is usually associated with coiling ("looping") of the colonoscope (instrument used for the procedure) in parts of the bowel. This is the main reason for patient discomfort and lengthens the duration of the procedure. Minimizing the coiling of the colonoscope would decrease the duration, and improve the efficiency and tolerability of the procedure and have a positive impact on colon cancer screening.

The primary aim of this study is to compare the time it takes for the colonoscope to reach the end of the colon when the patient is lying on the belly versus the left side (usual) at the start of the procedure. Patients who have medical conditions that may be affected by lying on their belly or those who cannot comfortably lie on the belly will be excluded from the study. Changes in patient position and use of abdominal pressure (commonly given by the endoscopy nurse during the procedure) will be permitted as necessary and determined by the endoscopist. The endoscopist will also retain the decision to discontinue the patient's participation from the study for any medical reason. After the procedure the patient will be monitored in the usual manner and asked to fill out a "satisfaction survey" (24 hours after).

Condition Intervention
Colonoscopy Procedure: Colonoscopy in the prone position

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Patient Position and Impact on Colonoscopic Cecal Intubation Time

Resource links provided by NLM:

Further study details as provided by VA Connecticut Healthcare System:

Primary Outcome Measures:
  • Colonoscopic Cecal Intubation time

Secondary Outcome Measures:
  • Total colonoscopy time, colonoscope withdrawal time, cumulative sedation dose, recovery time, need for abdominal pressure and changes in patient position during the procedure, adenoma prevalence rate, complications, patient satisfaction.

Estimated Enrollment: 120
Study Start Date: September 2005
Estimated Study Completion Date: March 2006
  Show Detailed Description


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria: Male Veterans presenting for outpatient colonoscopy for any indication.

Exclusion Criteria:

  • Severe Congestive heart failure with left Ventricular ejection fraction <30%,
  • Severe Chronic Obstructive lung disease dependant on Home Oxygen or recent decompensation,
  • Spine disease or other condition with difficulty laying in the prone position.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00314418

United States, Connecticut
VA Connecticut Healthcare System
West Haven, Connecticut, United States, 06516
Sponsors and Collaborators
VA Connecticut Healthcare System
VA Office of Research and Development
Principal Investigator: Shivakumar Vignesh, MD VA Connecticut Healthcare System
  More Information Identifier: NCT00314418     History of Changes
Other Study ID Numbers: SV0001
Digestive Disease
Study First Received: April 11, 2006
Last Updated: April 11, 2006

Keywords provided by VA Connecticut Healthcare System:
abdominal pressure processed this record on July 26, 2017