Minimal Water Exchange Versus Left Water Exchange in Unsedated Colonoscopy
Not Applicable
Completed
- Conditions
- Water Exchange Colonoscopy
- Interventions
- Other: minimal water exchange
- Registration Number
- NCT04952142
- Lead Sponsor
- Ningbo No. 1 Hospital
- 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.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 230
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.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description minimal water exchange minimal water exchange We suctioned the lumen and infused water by constant pressure on the air-water valve button of the endoscope at the rectum to open the lumen.
- Primary Outcome Measures
Name Time Method 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 Outcome Measures
Name Time Method Adenoma detection rate. 40 minutes. The proportion of patients in whom at least one adenoma is detected.
Trial Locations
- Locations (1)
Ningbo first hospital
🇨🇳Ningbo, Zhejiang, China