Clinical trial · Interventional
Water-assisted Colonoscopy vs Second Forward View Examination of the Right Colon on Adenoma Detection
Impact of Water-assisted Colonoscopy vs Second Forward View Examination of the Right Colon on Adenoma Detection
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Introduction and objectives: The adenoma detection rate (ADR) has been investigated as a formal method in the evaluation of a trainee or resident physician. Several studies have suggested that water-assisted colonoscopy methods increase the ADR, especially in the right colon, when compared to air-insufflated methods alone. The objective of this study is to compare the adenoma detection rates between the techniques of the second frontal view examination and "Underwater" examination by residents, supervised by a senior endoscopist. Patients and methods: This is a prospective, comparative and randomized clinical trial. The patients referred to the Cancer Hospital of Barretos for colonoscopy, and who agreed with the study, were divided into two groups, one with the use of water and the other only with air insufflation. The primary endpoint of this study is to compare adenoma detection rate. Secondary outcomes were withdrawal time, proportion of intubation of the cecum, preparation of the colon, and number of previously performed colonoscopies in the ADR in both techniques.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Adenoma | Adenoma | ONTOLOGY_EXACT | 0.98 |
| Colorectal Cancer | Malignant Colorectal Neoplasm | CURATED_BROADER | 0.80 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Water exchange | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- NO_INTERVENTION
- label
- Second Examination of the right colon
- description
- Second forward view examination of the right colon once the right colon (cecum to hepatic flexure) has been examined
- type
- EXPERIMENTAL
- label
- Water exchange
- description
- Water infusion during colonoscope insertion in the right colon (from hepatic flexure to cecum) and remove water during withdrawn ("Exchange method").
- interventionNames
- Other: Water exchange
Primary outcomes (1)
- measure
- Adenoma detection rate
- timeFrame
- up to 12 months
- description
- Proportion of individuals with at least one adenoma
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients undergoing diagnostic colonoscopy and surveillance colonoscopy Exclusion Criteria: * Contraindication for performing the endoscopic procedure. * Refusal to provide inform consent. * Past history of partial colectomy, familial adenomatous polyposis, inflammatory bowel disease, coagulopathy or thrombocytopenia. * Incomplete colonoscopy * Inadequate bowel preparation * Pregnant patients.
References
Publications (0)
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