Water Exchange Colonoscopy
Conditions
Keywords
water-aided colonoscopy
Brief summary
Minimal water exchange colonoscopy is theoretically more convenient and faster than water exchange colonoscopy. But few studies compared the differences between the two methods. Therefore, we attempted to evaluate the effect of minimal water exchange colonoscopy prospectively.
Interventions
OTHERminimal water exchange
Use a new technique, minimal water exchange colonoscopy, which adds the infusion of modest amounts of water by constant pressure on the air-water valve button of the endoscope to achieve intubation.
Sponsors
Ningbo No. 1 Hospital
Study design
Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients aged 18 to 75 years for unsedated colonoscopy for colorectal cancer screening, polyp surveillance, or polyp resection were enrolled.
Exclusion criteria
* Patients who underwent sedation or analgesia before colonoscopy, and were reluctant to cooperate or provide informed consent. Those who were suffering from too serious diseases to tolerate the examination. The intestinal segment was incomplete or the colonoscopy did not reach the cecum.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| VRS-4 pain scores | 30 minutes. | a 4-point verbal rating scale (VRS-4) with self-explanatory categories (no, slight, moderate, or severe pain). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Adenoma detection rate. | 40 minutes. | The proportion of patients in whom at least one adenoma is detected. |
Countries
China
Outcome results
None listed