- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04578795
Effectiveness of Single Use Flexible Ureteroscopes in Treatment of Renal Stones
October 1, 2020 updated by: Hossam Kandeel, Menoufia University
To study the Effectiveness of single use flexible Ureteroscopes in treatment of renal stones
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
The miniaturization of endourological instruments and improvements in laser lithotripsy have revolutionized the approach to renal stones .
- Percutaneous nephrolithotomy (PCNL) is currently the gold standard for management of large renal calculi.
- PCNL is associated, however, with a higher complication rate, degree of risk, and longer recovery period compared with ureteroscopy - ESWL was introduced in the 1980s and quickly became the gold standard for the treatment of kidney stones . In the 1990s, URS emerged with the advantages of direct visualization and extraction of kidney calculi .
- Currently, the American Urological Association guideline recommends ESWL or URS as equivalent first-line interventions for the treatment of kidney stones < 20 mm . - The guidelines of the European Association of Urology (EAU) additionally distinguish between lower pole and non-lower pole kidney stones. They recommend both treatments as equivalent options for kidney stones of 1020 mm, but favor URS for lower pole stones if adverse factors (such as anatomy and stone composition) argue against ESWL - Flexible URS has become popular with urologists, as it is easy to learn, is associated with high stone-free rates, and is acceptable to patients .
- Firstly described in 1964 by Marshall, the uretroscope was only passively deflectable and did not include working channel. - Although the first successful procedure in humans with a ureteroscope integrating active deflection has been reported by Takayasu, it was not until 1987 that Demetrius Bagley introduced flexible ureteroscopy as we know it today ).
- we can distinguish two types of flexible URS: fiberoptic and digital flexible URS. The difference between them is the image relay and light transmission. - In fiberoptic flexible URS, light and image are transmitted in analog format through fiberoptics bundles whereas illumination in digital scopes is made by fiberoptics or by a diode (DEL) and image capture charged by a digital sensor located at the tip of the endoscope: either charged coupled device (CCD) or complementary metal oxide semiconductor (CMOS ) - In both fiberoptic and digital flexible URS, most manufacturers have models with a 3.6 Fr working channel (for irrigation and use of accessory instruments) and at least one 270° active deflection of the tip. The most recent development in flexible URS was the introduction of single use digital flexible URS .
- On the other hand the traditional reusable scopes have a fixed purchase cost, there is additional cost related to scope processing and repairs . - The cost of single-use flexible URS is defined with the initial purchase price, whereas the procedural cost of reusable flexible URS is dependent on the initial and repair cost, maintenance and scope disinfection and on the number of procedures performed before it needs to be repaired. - There is also the cost of repair and the number of procedures with a refurbished scope until it has to be replaced.
Study Type
Interventional
Enrollment (Anticipated)
45
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Shibīn Al Kawm, Egypt
- Hossam abdelruhman kandeel
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- All cases indicated for flexible in our department (stone kidney up to 2 cm - failed ESWL, difficult PCNL
Exclusion Criteria:
- Staghorn stones
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Pt underwent single use flexible ureteroscopy
Patients with renal stones who will operated by single use flexible ureteroscopy
|
single use flexible ureteroscopy
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clearance of renal stones
Time Frame: One month after operation
|
the effectiveness of single use flexible ureteroscopy in treatment of renal stones in eradicate renal stones
|
One month after operation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Post operative complications after flexible ureteroscopy
Time Frame: 3 months after operation
|
Post operative complications as fever , haematuria are common after ureteroscopy
|
3 months after operation
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
September 1, 2020
Primary Completion (Anticipated)
April 1, 2021
Study Completion (Anticipated)
July 30, 2021
Study Registration Dates
First Submitted
September 28, 2020
First Submitted That Met QC Criteria
October 1, 2020
First Posted (Actual)
October 8, 2020
Study Record Updates
Last Update Posted (Actual)
October 8, 2020
Last Update Submitted That Met QC Criteria
October 1, 2020
Last Verified
October 1, 2020
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 9-2020urol
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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