View clinical trials related to Ureterolithiasis.
Filter by:A prospective study comparing different laser settings used for stone fragmentation during ureteroscopy
The purpose of this study is to determine whether new software processing of ultrasound images can improve detection and size determination of kidney stones.
Patients with a ureteral or kidney stone that causes symptoms, like pain, frequently have small kidney stones that don't cause symptoms. If these small kidney stones are determined to be asymptomatic (not causing any problems or pain), then most urologists will simply remove the symptomatic ureteral stone and leave the additional stones in the kidneys. However, symptomatic kidney stones started as small stones that didn't cause symptoms. This means that the small stones remaining in the patient's kidney may cause problems later. The purpose of our research is to test if removing small stones from the kidney prevents future stone episodes.
To compare staged ureteroscopy following initial urinary drainage versus direct ureteroscopy without initial urinary drainage in the treatment of obstructive calcular anuria with acute renal failure in children.
To compare percutaneous nephrostomy (PCN) versus double J stent (JJ) as an initial urinary drainage in children
A prospective, single-center, single-arm, trial to demonstrate safety and device performance of the ADVA-Tec Uriprene™ Degradable Temporary Ureteral Stent. This is a first-in-man clinical study in a small human population.
The purpose of this study is to evaluate Efficacy and Safety of oral intake of Naftopidil 75mg once daily for the improving clearance of ureteral or renal stones.
This study is to investigate whether naftopidil is effective or not for the spontaneous passage of ureteral stones with sizes of 3 to 10 mm.
Ureteral stones may be silent in 5.3% of patients. The goal of this study was to prospectively evaluate the impact of a silent ureteral stone on renal function.
Kidney stones are very common, and can inflict a significant degree of pain and renal damage. Some stones become obstructed in the ureter, the tube that drains the kidney. In order to remove these stones, an Urologist and their team use fluoroscopic guidance to do so, this involves continuous X-ray. Flouroscopy delivers a significant dose of radiation to the patient, as well as the health care team, which has been shown to have serious health consequences. Previous studies have shown that in certain populations, like pregnant women, stones can be managed using ultrasound guidance. The investigators propose that mid and distal ureteral stones could be managed using ultrasound guidance in conjunction with conventional stone removal techniques (ureteroscopy, lithotripsy, and ureteral stent placement), in lieu of fluoroscopy, thereby minimizing radiation to healthcare staff and patients. The investigators hypothesize that distal ureteral stones can be identified and efficiently fragmented and removed under ultrasound guidance in a safe and effective manner without the use of radiation.