Efficacy of carbon dioxide-insufflating colonoscopy in patients with irritable bowel syndrome (IBS): a randomized double-blind study

Efficacy of carbon dioxide-insufflating colonoscopy in patients with irritable bowel syndrome (IBS): a randomized double-blind study - Carbon dioxide-insufflating colonoscopy for IBS

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000006700

Enrollment

Registered

2011-11-11

Start date

2011-10-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Irritable bowel syndrome

Interventions

IBS(+), CO2 IBS(-), CO2 IBS(+), air IBS(-), air

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: IBS was diagnosed by using the RomeIII criteria. Subjects who were receiving total colonoscopy as screening and didn't have a history of functional gastrointestinal disorders or significant gastrointestinal symptoms were studied as controls.

Exclusion criteria

Exclusion criteria: Patients with a previous history of intestinal resection, known severe adhesion, or severe heart or lung disease were excluded.

Design outcomes

Primary

Measure	Time frame
The two symptoms of distention and abdominal pain during colonoscopic examination were registered with a 10 cm visual analogue scale (VAS).	—

Countries

Japan

Contacts

Public ContactMototsugu Kato

Hokkaido University Department of Gastroenterology

m-kato@med.hokudai.ac.jp0117161161

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026