Colorectal tumor
Conditions
Interventions
First perform withdrawal under water immersion, then perform withdrawal using CO2 insufflation. The intervention period is defined as the time from obtaining informed consent to two weeks after the ex
Sponsors
Yamaguchi University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients undergoing inpatient treatment for colorectal tumors 2. Patients aged 18 years or older at the time of obtaining informed consent 3. No restriction on sex 4. Patients who have received sufficient explanation regarding participation in this study and have provided written informed consent of their own free will with adequate understanding
Exclusion criteria
Exclusion criteria: 1. Patients with a history of colorectal surgery(excluding appendectomy) 2. Patients with inflammatory bowel disease 3. Patients with polyposis 4. Patients with heart failure(NYHA class III or IV) 5. Patients with severe hepatic dysfunction (Child Pugh class B or C) 6. Patients with chronic renal failure undergoing hemodialysis or peritoneal dialysis 7. Pregnant patients 8. Patients deemed ineligible for this study by the investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| polyp miss rate and adenoma miss rate | — |
Secondary
| Measure | Time frame |
|---|---|
| polyp detection rate and adenoma detection rate, withdrawal time, procedural pain assessment, sedative dosage | — |
Countries
Japan
Contacts
Public Contactkoichi Hamabe
Yamaguchi University Department of Gastroenterology and Hepatology
Outcome results
None listed