Minimal Water Exchange Versus Left Water Exchange in Unsedated Colonoscopy

Not Applicable

Completed

• Conditions: Water Exchange Colonoscopy

• 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

Study Timeline

• Status Verified: 2021-04
• Study Start: 2021-04-22
• Study First Submitted: 2021-06-18
• Study First Submitted QC: 2021-06-26
• Study First Posted: 2021-07-07
• Primary Completion: 2021-09-10
• Study Completion: 2021-09-30
• Last Update Submitted: 2021-11-02
• Last Update Posted: 2021-11-10

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

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