Active clinical trials for "Hydronephrosis"

Renal colic is a common (1300 visits per year at our institution) and painful condition caused by stones in the kidney and ureter, and can be mimicked by life threatening conditions such as a ruptured abdominal aortic aneurysm (AAA). This can create clinical uncertainty. Emergency department targeted ultrasound (EDTU) is performed by an emergency physician at the patient's bedside, and has been shown to be accurate, safe, and efficient. We have shown that EDTU can accurately identify hydronephrosis, which is a predictor of complications of kidney stones. A normal formal ultrasound (US) predicts an uncomplicated clinical course. We will assess the accuracy of EDTU for the diagnosis of hydronephrosis, and when normal, whether patients can be safely discharged.

The purpose of this study is to determine the overall sensitivity and specificity of hydronephrosis on point-of-care bedside ultrasound to identify hydronephrosis as compared to hydronephrosis found by CT.

The purpose of this study is to detect new urinary biomarkers that can be used as predictors on renal function in congenital hydronephrosis caused by unilateral ureteral obstruction (UUO) and to elucidate the pathophysiology of UUO.

Kidney stones cause severe pain. Patients with a stone lodged in the ureter (the tube that drains the bladder), require urgent treatment with a stent to relieve the blockage. This tube, or ureteral stent, gives the patient relief until they can have their stone treated. This study is to evaluate a new type of ureteral stent to relieve pain from kidney stones. This stent is designed to drain the kidney and unlike other ureteral stents, is also designed to widen the ureter to help the stone pass on its own.

The aim of this study is to evaluate the accuracy and implications of the diagnoses and treatment determined by bedside ultrasonography (b-US) of the kidneys compared to current clinical assessment. Potentially diagnosing patients faster and avoiding missing conditions leading to readmission or unnecessary radiation from computed tomography (CT). This study evaluates the use of b-US as a supplement to clinical evaluation, in an unselected group of patients in the emergency department (ED) with signs of kidney involvement. The b-US of the kidneys is performed by a medical student certified in this technique. The evaluation will be based on data collected from a Danish hospital (Odense University Hospital, OUH) in autumn 2018.

Patients with congenital hydronephrosis will be identified by inpatient consultations performed by Dr. Assadi for congenital hydronephrosis and by outpatient problem lists with congenital hydronephrosis of Dr. Assadi's existing patients. Given standard evaluation will be evaluated to determine if based on initial ultrasound classification an algorithm can be developed to target evaluation studies for the initial evaluation. With a goal of targeting the few children that have need of additional intervention and minimizing the studies performed on children who will spontaneously resolve.

The purpose of this study is to assess the clinical significance of supranormal differential renal function (DRF) in the recovery of unilateral hydronephrosis (HN) after surgery, pediatric patients who underwent pyeloplasty for ureteropelvic junction obstruction (UPJO) who showed supranormal DRF (> 55%) in the DTPA renography will be analyzed.

Performance and outcomes measure are, at this time, relatively unknown for robotic pyeloplasty procedures. The purpose of this study is to provide a clearer understanding of the urology department's robotic pyeloplasty quality and outcomes measures. This will be accomplished by prospectively collecting data for these procedures would ensure that measures are consistently collected in accordance with a defined protocol, allowing for more valuable quality and clinical research analysis. Hypothesis will be defined before data analysis is performed. Amendments specifying future hypothesis will be submitted the IRB at the appropriate time.

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 is a clinical feasibility study to assess the value of MR imaging for obtaining functional, dynamic and anatomical information in a comprehensive imaging protocol in subjects having obstructive uropathy.