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Application Effects of the Water Exchange Method at the Rectosigmoid Junction, Minimal Water Exchange Method, and Carbon Dioxide Insufflation in Unsedated Colonoscopy: A Randomized Controlled Trial

Application Effects of the Water Exchange Method at the Rectosigmoid Junction, Minimal Water Exchange Method, and Carbon Dioxide Insufflation in Unsedated Colonoscopy: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400091908
Enrollment
Unknown
Registered
2024-11-05
Start date
2024-11-11
Completion date
Unknown
Last updated
2024-11-11

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

Conditions

None listed

Interventions

rectosigmoid water injection (RWI):rectosigmoid water injection
Minimal water exchange(MWE):Minimal water exchange
Carbon dioxide insufflation (CDI):Carbon dioxide insufflation

Sponsors

The Second Affiliated Hospital of Nanchang University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: Patients aged 18 to 80 undergoing unsedated colonoscopy for medical screening, polyp surveillance, or polypectomy.

Exclusion criteria

Exclusion criteria: (1) Previous partial colectomy;(2) Poor bowel preparation;(3) Cardiac or renal insufficiency;(4) Large amount of ascites; (5) Known colonic obstruction.

Design outcomes

Primary

MeasureTime frame
Pain Score;—

Secondary

MeasureTime frame
Insertion Time;Injection volume;Willingness to undergo routine colonoscopy again;Number of position changes.;Number of abdominal compressions;—

Countries

China

Contacts

Public ContactGe Chenglong

The Second Affiliated Hospital of Nanchang University

289478105@qq.com+86 152 0027 9595

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026