RCT of Air Insufflation Versus Water Infusion Colonoscopy

NCT ID: NCT00785889

Last Updated: 2008-11-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

56 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-03-31

Study Completion Date

2008-10-31

Brief Summary

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Compared with the conventional (air) method, patients examined by the study (water) method have lower pain scores and require less medication but have similar cecal intubation rate and willingness to repeat future colonoscopy.

Detailed Description

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Background: A novel water method permitted 52% of patients accepting on-demand sedation to complete colonoscopy without medications and significantly increased successful cecal intubation from 76% to 97% in patients accepting scheduled unsedated colonoscopy.

Aim: To perform a randomized controlled trial comparing air insufflation (conventional method) vs. water infusion in lieu of air (study method) colonoscopy in minimally sedated patients.

Hypothesis: Compared with the conventional method, patients examined by the study method have lower pain scores and require less medication but have similar cecal intubation rate and willingness to repeat future colonoscopy.

Setting: Outpatient colonoscopy in a single VA hospital Methods: After informed consent and standard bowel preparation, patients received pre-medications administered as 0.5 increment of Fentanyl (25 μg) and 0.5 increment of Versed (1 mg) plus 50 mg Diphenhydramine. The conventional and the study method for colonoscopy were implemented as previously described. Additional pain medications were administered at the patients' request.

Outcome measures: Increments of medications, pain scores, cecal intubation and willingness to repeat colonoscopy.

Limitations: Single VA site, older male population

Conditions

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Colorectal Cancer

Keywords

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Colorectal cancer screening optical colonoscopy water method sedation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

SCREENING

Blinding Strategy

SINGLE

Participants

Interventions

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water infusion colonoscopy

water infusion in lieu of air insufflation for screening colonoscopy

Intervention Type PROCEDURE

Other Intervention Names

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optical colonoscopy, water infusion colonoscopy

Eligibility Criteria

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Inclusion Criteria

* healthy individual 50 years or older
* eligible for colorectal cancer screening or surveillance

Exclusion Criteria

* patients who do not understand or failed to sign informed consent
Minimum Eligible Age

45 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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East Bay Institute for Research and Education

OTHER

Sponsor Role lead

Responsible Party

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GI Section, Northern California Health Care System

Principal Investigators

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Joseph Leung, MD

Role: PRINCIPAL_INVESTIGATOR

Sacramento VA Medical Center, GI Section

Locations

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Sacramento VA Medical Center, VANCHCS

Mather, California, United States

Site Status

Countries

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United States

References

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Leung JW, Mann S, Leung FW. Options for screening colonoscopy without sedation: a pilot study in United States veterans. Aliment Pharmacol Ther. 2007 Aug 15;26(4):627-31. doi: 10.1111/j.1365-2036.2007.03404.x.

Reference Type BACKGROUND
PMID: 17661766 (View on PubMed)

Leung FW. Water-related techniques for performance of colonoscopy. Dig Dis Sci. 2008 Nov;53(11):2847-50. doi: 10.1007/s10620-008-0259-1. Epub 2008 May 7.

Reference Type BACKGROUND
PMID: 18461455 (View on PubMed)

Leung FW, Aharonian HS, Guth PH, Chu SK, Nguyen BD, Simpson P. Involvement of trainees in routine unsedated colonoscopy: review of a pilot experience. Gastrointest Endosc. 2008 Apr;67(4):718-22. doi: 10.1016/j.gie.2007.11.040.

Reference Type BACKGROUND
PMID: 18374030 (View on PubMed)

Leung JW, Mann SK, Siao-Salera R, Ransibrahmanakul K, Lim B, Cabrera H, Canete W, Barredo P, Gutierrez R, Leung FW. A randomized, controlled comparison of warm water infusion in lieu of air insufflation versus air insufflation for aiding colonoscopy insertion in sedated patients undergoing colorectal cancer screening and surveillance. Gastrointest Endosc. 2009 Sep;70(3):505-10. doi: 10.1016/j.gie.2008.12.253. Epub 2009 Jun 24.

Reference Type DERIVED
PMID: 19555938 (View on PubMed)

Other Identifiers

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EBIRE-GI-001

Identifier Type: -

Identifier Source: org_study_id