Clinical trials: Flexible Ureteroscopy
Nephrolithiasis, Alpha Blocker
Alpha-Blockers Prior to Ureteral Access Sheath Placement in Flexible Ureteroscopy: A Randomized Prospective Study
This study aims to evaluate whether the use of alpha-blockers before flexible ureterorenolithotripsy facilitates the passage of the ureteral access sheath.
- Conditions
- Nephrolithiasis, Alpha Blocker, Ureteral Access Sheath
- Trial name
- ALFA-URS (NCT07124299)
- Testing
- Experimental: Alpha-blocker group, No intervention (observational study)
- Where
- Brazil
- Volunteers
- 140 people
- Sponsor
- Pedro de Figueiredo Buchalla
Symptoms and Signs, Pain
Stent-related Symptoms Comparison: Polaris Loop vs Vortek Double-J Stents
Prospective randomized controlled single-blind parallel-group trial in order to compare symptoms related to loop-tail (Polaris Loop) stents versus conventional double J (Vortek) stents after uncomplicated flexible URS.
- Conditions
- Symptoms and Signs, Pain, Renal Calculi
- Trial name
- NCT03344107
- Testing
- USSQ questionnaire administration after RIRS.
- Where
- Italy
- Volunteers
- 68 people
- Sponsor
- A.O.U. Città della Salute e della Scienza
Urolithiasis, Calyx; Calculus
Citrate Salts for Stone-free Result After Flexible Ureterorenoscopy for Inferior Calyx Calculi
The prevalence of urolithiasis is around 10 % in the French population. It is thus a major public health issue. When the stone is not spontaneously removed, interventions such as extracorporeal lithotripsy or flexible…
- Trial name
- CiRUS (NCT04021381)
- Testing
- Potassium and magnesium citrate
- Where
- France
- Volunteers
- 262 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Kidney Calculi
Effect of Anesthesia Type on Surgeon Workload During Endoscopic Kidney Stone Surgery
This prospective observational study aims to evaluate the association between anesthesia type and surgeon-perceived workload and surgical ergonomics in adult patients undergoing flexible ureteroscopy and retrograde intrarenal…
- Trial name
- RIRS-ERG (NCT07763600)
- Testing
- General Anesthesia (GA), Spinal Anesthesia (SA)
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people
- Sponsor
- Malatya Governor Research Hospital
Urolithiasis, Renal Stones
Safety and Effectiveness of Antegrade Flexible Ureteroscopy-Assisted Percutaneous Nephrolithotomy for Staghorn Calculi
Objective This study aims to evaluate the safety and efficacy of antegrade flexible ureteroscopy-assisted PCNL for the treatment of staghorn calculi, compared with standard PCNL.
- Trial name
- NCT07172373
- Testing
- antegrade flexible ureteroscopy-assisted PCNL, single PCNL
- Volunteers
- 420 people
- Sponsor
- Tianjin Medical University Second Hospital
Paediatric, Flexible Ureteroscopy
The Efficacy and Safety of Adjunctive Alpha-blocker Therapy Before Flexible Ureteroscopy in the Management of Upper Ureteric Stones in Pediatrics Group
A unique aspect of pediatric URS is the smaller ureteral diameter, which often results in failure to access the ureter during an initial URS attempt.
- Trial name
- NCT07841340
- Testing
- Tamsulosin
- Where
- Egypt
- Volunteers
- 80 people
- Sponsor
- Ain Shams University
Renal Stones
Efficacy and Safety of Flexible Ureteroscopy Versus Percutaneous Nephrolithotomy in Management of Staghorn Stones
Percutaneous nephrolithotomy (PCNL) is considered the treatment of choice for management of large renal calculi larger than 2 cm based on the yearly updated European Association of Urology (EAU) guidelines.
- Trial name
- NCT07322471
- Testing
- Percutaneous nephrolithotomy, Flexible ureteroscopy
- Where
- Egypt
- Volunteers
- 138 people
- Sponsor
- Menoufia University