Does a Safety Guidewire Increase the Forces Needed to Move the Ureteroscope up and Down the Ureter?

Bergen Hospital Trust

Status: Completed

Conditions: Ureteroscopy

Treatments: Procedure: Ureteroscopy with and without safety guidewire

Study type: Interventional

Funder types: Other

Identifiers

NCT01117701

21835 (NSD) - 4 (Other Identifier)

102.09 (REK) - 4 (Other Identifier)

Details and patient eligibility

About

The purpose of this study is to investigate to forces needed to passage the ureteroscope up and down the ureter with and without a safety guidewire in place.

Full description

Ureteroscopy may damage the ureter, and the complication risk is influenced by the forces needed to move the ureteroscope up and down the ureter.

Although a safety guidewire (SGW) is commonly recommended in order to reduce the complication rate it may well be that the SGW itself may inhibit the passage of the ureteroscope due to increased friction.

The forces needed to move the ureteroscope in the ureter have not been investigated properly.

The intention in this study is to measure the forces needed to advance and withdraw the ureteroscope in the ureter with and without the SGW in place.

Enrollment: 40 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients planned for endoscopic kidney stone treatment

Exclusion criteria

• Known pathology in the ureter

Trial design

40 participants in 2 patient groups

A - with SGW

Experimental group

Description:

Measurement of the forces needed to passage the ureteroscope in the ureter with a SGW in place.

Treatment:

Procedure: Ureteroscopy with and without safety guidewire

B - without SGW

Experimental group

Description:

Measurement of the forces needed to passage the ureteroscope in the ureter without a SGW in place.

Treatment:

Procedure: Ureteroscopy with and without safety guidewire