colorectal adenoma colorectal adenoma
Conditions
Interventions
Endoscopic observation should be performed in Underwater and Under-gel according to the preliminary
allocation.
After imaging, aspirate saline or Viscoclear as much as possible, and perform the next
Colonoscopy
Under-gel EMR
Sponsors
Yamasaki Yasushi
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1)Patients with non-pedunculated adenomatous colorectal lesions of 6 mm or more but less than 20 mm on colonoscopy performed within the past 18 months 2) The most proximal lesion, if there are multiple lesions between 6mm and 20mm 3)Patients who are 20 years of age or older at the time of obtaining consent. 4)Patients who have obtained written consent of t heir own free will with full understanding after receiving sufficient explanation for participation in this study.
Exclusion criteria
Exclusion criteria: 1)Patients with suspected invasive cancer (submu cosa or deeper) 2)Patients with Inflammatory Bowel Disease (IBD) 3)Patients who cannot undergo bowel 4) Patients with a history of hypersensitivity to any ingredient of Viscoclear 5) Patients deemed ineligible by the researchers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the visibility of tumor borders in underwater and under-gel | — |
Secondary
| Measure | Time frame |
|---|---|
| (1)the visibility of tumor borders in underwater and under-gel (subjective evaluation in 4 levels) (2)color differences by bowel preparation (3)Pathological evaluation and adverse events | — |
Contacts
Public ContactJunki Toyosawa
Okayama University Hospital
Outcome results
None listed