Colorectal Neoplasm
Conditions
Interventions
patients whose DAPs with type IIIL PIT were left untreated.
patients whose all neoplastic polyps including DAPs were resected.
patients without any adenomatous polyp.
Sponsors
Digestive Disease Center, Showa University Northern Yokohama Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Patients who undergo were referred for initial total colonoscopy with magnifying endoscopy were followed up for more than 3 years.
Exclusion criteria
Exclusion criteria: Exclusion criteria was patients who had the lesions >5mm in diameter and/or with type IIIs, IV, V PIT left untreated at initial treatment, and those who have a history of familial adenomatous polyposis, Lynch syndrome, Advanced colorectal cancer, Inflammatory bowel disease and operation of colorectum.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary goal is to address the hypothesis that after two complete colonoscopies with the removal of all polyps detected, the incidence of clinically significant lesions would not be different between patients undergoing two further follow-up examinations and those undergoing just one. Clinically significant lesions are defined as index lesions (IL): if they are larger than 10mm; if they have high-grade dysplasia; or if they are invasive. | — |
Secondary
| Measure | Time frame |
|---|---|
| The secondary endpoint: Colorectal cancer reduction rate cause of endoscopic polypectomy | — |
Countries
Japan
Contacts
Public Contactyasuharu maeda
Showa University Northern Yokohama Hospital Digestive Disease Center
Outcome results
None listed