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OpenTrials
Completed

NCT Number: NCT04952142

Minimal Water Exchange Versus Left Water Exchange in Unsedated Colonoscopy

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.

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Key information

Conditions

Water Exchange Colonoscopy

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Ningbo first hospital

Ningbo, Zhejiang, 315010, China

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

minimal water exchange

Other

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.

Primary outcomes

  1. VRS-4 pain scores

    Time frame: 30 minutes.

    a 4-point verbal rating scale (VRS-4) with self-explanatory categories (no, slight, moderate, or severe pain).

Secondary outcomes

  1. Adenoma detection rate.

    Time frame: 40 minutes.

    The proportion of patients in whom at least one adenoma is detected.

Sponsors and collaborators

Lead sponsor

Ningbo No. 1 Hospital

Other

Registry information

Official study title

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

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Jul 7, 2021
Registry last updated
Nov 10, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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