Patients who will receive a colonoscopy.
Conditions
Interventions
Measuring the internal colonic pressure with carbon dioxide injection through a colonoscope.
Sponsors
International University of Health and Welfare
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients who will undergo colonoscopy 2. Age of 20-89 years 3. Written informed consent
Exclusion criteria
Exclusion criteria: 1. History of colorectal surgery 2. Known inflammatory bowel disease 3. Known hereditary or non-hereditary polyposis syndrome 4. Known hereditary non-polyposis colorectal cancer (HNPCC) 5. Known severe diverticular segment which restricts colonoscopy 6. Unable to intake bowel preparation agent 7. Allergy for any drugs used during colonoscopy 8. Known colorectal adenoma, polyp, or cancer before the trial 9. Pregnancy 10. Breast-feeding 11. Lack of informed consent 12. Others
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Peak internal pressure values in the cecum, transverse colon, and rectum during carbon dioxide injection through a colonoscope. | — |
Secondary
| Measure | Time frame |
|---|---|
| Rate of increased internal colonic pressure by carbon dioxide injection. Relationship between abdominal discomfort or symptom and internal colonic pressure. Relationship between defecation frequency and internal colonic pressure. Relationship between Bristol stool form scale and internal colonic pressure. | — |
Countries
Japan
Contacts
Public ContactTakao Tonishi
International University of Health and Welfare Ichikawa Hospital Gastroenterology
Outcome results
None listed