Ureteroscopy
Conditions
Brief summary
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.
Detailed 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.
Interventions
In study arm A - with SGW, the force measurements are made with a safety guidewire in place. In study arm B - without SGW, the force measurements are made without SGW.
Sponsors
Helse-Bergen HF
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients planned for endoscopic kidney stone treatment
Exclusion criteria
* Known pathology in the ureter
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The force needed to passage the ureteroscope up and down in the ureter with and without SGW. | 1 day | The force is measured by a digital force-meter device. The force measured is scaled in Newton. The results are available immediately after each measurement. |
Countries
Norway
Outcome results
None listed