Colorectal neoplasms Colorectal neoplasms, Total underwater colonoscopy
Conditions
Interventions
Tandem colonoscopy is performed for each case. Insertion is performed by immersion in both groups.
Random classification into the following two groups will be performed for extraction.
Intervention 1:
Sponsors
Hamabe Koichi
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 and adenoma detection rate, endoscopic extraction time, assessment of pain during examination, sedative dosage | — |
Contacts
Public Contactkoichi hamabe
Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine
Outcome results
None listed