Minimal Water Exchange Versus Left Water Exchange in Unsedated Colonoscopy

Water Exchange Colonoscopy Clinical Trial

Official title:

Minimal Water Exchange Versus Left Water Exchange in Unsedated Colonoscopy: a Randomized Controlled Trial.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04952142
• Other study ID #: 2021CR320
• Status: Completed
• Phase: N/A
• Start date: April 22, 2021
• Est. completion date: September 30, 2021

Study information

• Verified date: April 2021
• Source: Ningbo No. 1 Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 230
• Est. completion date: September 30, 2021
• Est. primary completion date: September 10, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

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.

Related Conditions & MeSH terms

• Water Exchange Colonoscopy

Intervention

Other:
• minimal 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.

Locations

Country	Name	City	State
China	Ningbo first hospital	Ningbo	Zhejiang

Sponsors (1)

Lead Sponsor	Collaborator
Ningbo No. 1 Hospital

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	VRS-4 pain scores	a 4-point verbal rating scale (VRS-4) with self-explanatory categories (no, slight, moderate, or severe pain).	30 minutes.
Secondary	Adenoma detection rate.	The proportion of patients in whom at least one adenoma is detected.	40 minutes.