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The control valve assists colonoscopy to reduce the bacterial load in the operating room

The control valve assists colonoscopy to reduce the bacterial load in the operating room

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500097549
Enrollment
Unknown
Registered
2025-02-20
Start date
2025-03-03
Completion date
Unknown
Last updated
2025-03-10

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

Conditions

None

Interventions

Control group:Colonoscopy is performed using conventional methods without covering the biopsy hole.
Experimental group:Cover the biopsy wells with enzymatically hydrolyzed gauze.
Negative control group:Biopsy holes were covered with saline gauze.

Sponsors

Hangzhou First People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: Aged 18-90 years, signed informed consent, good bowel preparation quality (no or little fecal residue), diagnostic colonoscopy, and no therapeutic intervention other than colon biopsy (i.e., no polypectomy, hemostasis, and stent placement).

Exclusion criteria

Exclusion criteria: Exclusion Criteria: Patients are excluded from the study if they are unwilling to participate, have poor bowel preparation, require therapeutic intervention, or are undergoing emergency surgery.

Design outcomes

Primary

MeasureTime frame
Intestinal bacteria count;

Secondary

MeasureTime frame
Bacteria species;

Countries

China

Contacts

Public ContactYifeng Zhou

Hangzhou First People's Hospital

17415360@qq.com+86 133 3581 0070

Outcome results

None listed

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