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Impact of Transparent Cap-Assisted Sigmoid Colon Water Exchange Colonoscopy on the Learning Curve for Novice Operators: A Prospective Randomized Controlled Study

Impact of Transparent Cap-Assisted Sigmoid Colon Water Exchange Colonoscopy on the Learning Curve for Novice Operators: A Prospective Randomized Controlled Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600123245
Enrollment
Unknown
Registered
2026-04-23
Start date
2026-05-15
Completion date
Unknown
Last updated
2026-04-27

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

Conditions

Colorectal diseases

Interventions

CAC group:In the CAC group, an Olympus CF-H260Q colonoscope with a 4mm transparent cap (Model D-201-14304) attached to the distal end was used, and the colonosc
SWC group:In the SWC group, the same colonoscope and transparent cap were used.

Sponsors

Wuhan Fourth Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Age 18-80 years; 2.absence of absolute or relative contraindications to colonoscopy (suspected or confirmed gastrointestinal perforation, acute severe colitis (e.g., severe ulcerative colitis, active phase of Crohn's disease), acute diverticulitis, severe hemodynamic instability, recent myocardial infarction or unstable angina (within 6 months), severe chronic obstructive pulmonary disease (COPD) or respiratory failure); 3.ability to understand and sign the informed consent form; 4.willingness to undergo unsedated colonoscopy.

Exclusion criteria

Exclusion criteria: 1.History of prior colorectal surgery (e.g., ostomy, major resection, etc.); 2.extremely poor bowel preparation (Boston Bowel Preparation Scale score < 6); 3.inability to complete full colonoscopy due to luminal stenosis or obstruction; 4.refusal to sign the informed consent form; 5.pregnancy or lactation.

Design outcomes

Primary

MeasureTime frame
Learning curve analysis;the cecal intubation time;

Secondary

MeasureTime frame
Cecal intubation success rate;BBPS;Patient discomfort;PDR;

Countries

China

Contacts

Public ContactWang Dongchu

Wuhan Fourth Hospital

506428426@qq.com+86 27 8393 0105

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 1, 2026