View clinical trials related to Ureteral Obstruction.
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?
This study will be conducted to compare early (one week) versus delayed (2-4 weeks) definitive ureteroscopic lithotripsy after initial drainage for obstructing ureteral or renal stones associated with infection.
Ureteropelvic junction obstruction (UPJO) is the most common etiology of high-grade hydronephrosis, affecting approximately 4,000-10,000 infants annually in the U.S. The goal of surgical treatment of UPJO is to minimize the risk of kidney damage associated with obstruction, which may occur in 30-60% of infants with high-grade hydronephrosis.1-However, the benefit of early surgery compared to observation and potential later surgery to preserve kidney function has not been well-defined. Consequently, surgeons differ on whether to initially treat with surgery or observation, with surgical rates in the first year of life varying from 15-50% across surgical practices. These variations are important to understand, as the decision for early surgery is not without risk. Prior studies suggest that infants treated surgically are at higher risk for readmission and reoperation. Early surgery also raises concerns about neurodevelopmental effects of anesthetic exposure. To address this gap, the purpose of this pilot test is to develop a patient decision aid (PtDA) tool and pilot test its effect on parental understanding and engagement in the decision-making process at Children's Hospital Colorado. The proposed pilot is a necessary first step in preparation for a future multicenter hybrid effectiveness-implementation trial. This work will also be used to support future studies evaluating the impact of a PtDA on surgical variations and treatment outcomes in patients with UPJO and other complex congenital urologic anomalies.
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.
This research study will compare two procedures commonly used to treat urinary obstruction due to cancer. Sometimes cancer blocks one or both ureters (narrow tubes in the body that carry urine from the kidneys to the bladder). When these ureters become blocked, the body can no longer properly drain urine. This blocking of the ureters is called urinary obstruction, which can lead to kidney problems, infection, and pain. Treatment options for urinary obstruction include ureteral stent placement and percutaneous nephrostomy tube placement. Both treatment options require a doctor to place soft tubes (like a catheter) inside the body to help the ureters properly drain urine. These two treatment options have different success rates, risks, and effects on quality of life. By doing this study, researchers hope to learn which treatment option is best for individuals who develop urinary obstruction because of cancer. Participation in this research will last about 3 months.
To evaluate the role of both primary and deferred URS in the management of calculus anuria concerning the feasibility, clinical outcome, and cost-effectiveness in children in a comparative study
Cortical transit time on diuretic renogram as an early marker of significant obstruction in antenatally detected uretero-pelvic junction syndrome
The purpose of this study is to evaluate Efficacy and Safety of a covered self-expandable dual-layered metallic mesh stent (UVENTA) in ureteral obstruction.