View clinical trials related to Hydronephrosis.
Filter by:The goal of this observational study is to learn about specific biomarkers of unilateral ureteropelvic junction obstruction (UPJO) in children undergoing surgical intervention for unilateral UPJO compared with controls. The main question it aims to answer are: - Are Urinary single-cell and extracellular vesicles (EVs) screening useful to stage the intrarenal injury and repair processes in UPJO babies? - Do babies with unilateral UPJO have a whole blood gene expression profiling (WBGEP) allowing an accurate unilateral UPJO diagnosis?
Acute kidney injury (AKI) is a common diagnosis in the emergency department (ED), and urinary tract obstruction is a contributing cause that requires rapid diagnosis and therapeutic management. This observational study aims at assessing the accuracy of point-of-care ultrasound (POCUS), performed by the emergency physician (EP) for the detection of dilatation or distension of the kidney secondary to urinary tract obstruction, in emergency department patients presenting with acute kidney injury (AKI). Participants will undergo a bedside POCUS of the urinary tract by the EP followed by central imaging evaluation by a radiologist (either ultrasound or renal computed tomography (CT) or both). Researchers will compare both diagnosis. Study hypothesis is that trained emergency physicians can rapidly and reliably diagnose renal tract obstruction at POCUS in the context of AKI.
an intervention study on adult patients with uretero-pelvic junction obstruction (UPJO) due to crossing vessels would be managed either through classic dismembered pyeloplasty or vascular hitch.
To conduct a prospective, multi-center study to observe the long-term efficacy and safety of self expanding ureteral stent for treating participants with refractory ureteral stricture.
A prospective, multicenter and controlled study to observe the efficacy and safety of coated metal ureteral stent in the treatment of radiation induced ureteral stricture.
Ureteral stents have been widely used in many urological operations. Although there are several reports regarding the effectiveness of long-term ureteral stents for malignancy ureteral obstruction, ureteral stricture and urolithiasis, the experience is limited about the long-term ureteral stents made by Taiwan. The investigators have to propose the 5-year post-market survey report. Though this observation study, The investigators can further understand the clinical safety and effectiveness of placing ureteral stents
this present study is to compare the result of fluoroscopy, ultrasonography (US) in the guidance of percutaneous nephrostomy pcn .
Cortical transit time on diuretic renogram as an early marker of significant obstruction in antenatally detected uretero-pelvic junction syndrome