Ulcerative colitis
Conditions
Interventions
Gold Standard:Pathological examination
Index test:1. 
biopsies 
were 
taken 
from 
visible 
using 
endoscopy
2. 
Sponsors
Xijing Hospital of Digestive Diseases, Fourth Military Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. a confirmed diagnosis of UC; 2. aged 18 years or older; 3. left-sided or extensive UC; 4. duration of the disease =6 years.
Exclusion criteria
Exclusion criteria: 1. pregnant or breastfeeding; 2. diagnosed with severe UC; 3. had an allergy to methylene blue dye; 4. had a personal history of dysplasia or CRC; 5. had concomitant diagnosis of toxic megacolon, gastrointestinal perforation, renal insufficiency, coagulation disorder, serious heart and liver diseases; 6. could not stand colonoscopy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the number of colonoscopies diagnosed with dysplasia/CRC; | — |
Secondary
| Measure | Time frame |
|---|---|
| the patients with dysplasia/CRC;number of dysplasia/CRC lesions;endoscopic and histological characteristics of dysplasia/CRC lesions;risk factors; | — |
Countries
China
Contacts
Public ContactKaichun Wu
Xijing Hospital of Digestive Diseases
Outcome results
None listed