The efficacy of the Integrated Water Jet Channel Colonoscopy in Water Exchange Method

Chih-wei Tseng

Status: Completed

Conditions: Colon Disease; Colonoscopy

Treatments: Device: Water jet channel; Device: Accessory channel

Study type: Interventional

Funder types: Other

Identifiers

NCT03279705

DalinTCGH

Details and patient eligibility

About

This prospective randomized controlled trial compared integrated water jet channel colonoscopy with traditional accessory channel colonoscopy in cecal insertion time among patients undergoing WE method colonoscopy.

Full description

When the WE method colonoscopy were done with the accessory channel for both infusing and suctioning of water. The water had to be suctioned or infused alternatively and increaed the insertion time.

With the new designed endoscopy that integrated a separate water jet channel for infusing water, infusing and suctioning of water can be done at the same time. Besides, water jet pumping system could provide a powerful jet to help us open the collapse lumen and keep an appropriate distance between the mucosa and the lens, thus preventing loss of visualization. It will help the colonoscopist to find the way during insertion.

Enrollment: 120 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Underwent fully sedative colonoscopy with WE method in the outpatient department

Exclusion criteria

• Age < 18 years old or > 80 years old
• Without standard colon preparation
• Allergy to meperidine or propofol
• With a history of partial colectomy
• Refusal to provide written informed consent.

Trial design

Primary purpose: Diagnostic

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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120 participants in 2 patient groups

Two-channel group

Experimental group

Description:

The colonoscopy was done with the new designed colonoscopy that integrated a separate water jet channel for infusing water. The dirty water was removed through other accessory channel.

Treatment:

Device: Accessory channel

Device: Water jet channel

One-channel group

Active Comparator group

Description:

The colonoscopy was done with the traditional colonoscopy. Water exchange was done by using the accessory channel for both infusing and suctioning of water.

Treatment:

Device: Accessory channel