View clinical trials related to Urolithiasis.
Filter by:Assess the efficacy and safety of potassium citrate extended-release tablets on Urolithiasis formation or recurrence.
This is an observational study based on retrospectively collected data of ureter stone patients between 2011 and 2014. Aim of study is to determine radiologic findings of non-contrast abdominal computerized tomography as predicting clinical outcomes of suspect ureter stone patients in emergency department (ED).
The incidence of nephrolithiasis in children has been reported to increase by approximately 6-10% annually, and the incidence is currently 50 per 100,000 children with high recurrent rate. Investigators aimed to determine the metabolic risk factors in Chinese children through metabolic evaluation. In order to identify diagnostic criteria of hypocitraturia and hyperoxaluria in western country wether adapt to Chinese children, investigators aim to determine normal urine levels of oxalate and citrate in children without kidney stone.
This study will be a single-institutional randomized, single-blinded prospectively controlled clinical trial of a single dose of Ciprofloxicin 500mg antibiotic tablet as prophylaxis at the time of office flexible cystoscopy with ureteral stent removal. The control group will be no prophylaxis oral antibiotics.
The purpose of this study is to quantify the radiation exposure from diagnostic testing and surgical treatment during routine endourologic procedures for symptomatic urolithiasis.
Retrospective Analysis of patients that received shockwave lithotripsy as Treatment of ureteral or kidney Stones. Condition examinated is the effect of low molecular weight Heparins and acetylsalicylic acid on the Formation of renal hematoma after shockwave lithotripsy. Primary outcome is documented hematoma in a postoperative ultrasound control. Secondary outcomes are perioperative complication, Need for erythrocyte tranfusion, interventions for bleeding control, readmission or death within 30 days.
The investigators objective is to determine if urinary electrolyte abnormalities exist in only one or both kidneys in participants with and without a history of kidney stones. To meet this objective, the investigators are going to take urine samples from each kidney at the time of kidney stone surgery. The samples will then be analyzed for absolute and relative differences in the concentrations of urine electrolytes, such as calcium.
The purpose of this study is to determine the natural history of the hereditary forms of nephrolithiasis and chronic kidney disease (CKD), primary hyperoxaluria (PH), cystinuria, Dent disease and adenine phosphoribosyltransferase deficiency (APRTd) and acquired enteric hyperoxaluria (EH). The investigator will measure blood and urinary markers of inflammation and determine relationship to the disease course. Cross-comparisons among the disorders will allow us to better evaluate mechanisms of renal dysfunction in these disorders.
The aim of this research is to use a controlled laboratory setting to determine whether bacteria isolated from kidney stones of patients play a role in the formation of non-infectious kidney stones. It is well known that struvite stones are associated with active bacterial infection, however the role of bacteria in the formation of non-infection stones (like calcium oxalate) is not well characterized and there are theories that bacteria are involved in the making of these stones.
Purpose: The aim of this present study is to investigate the effect of vinegar consumption on 24-hour urinary risk factors associated with calcium oxalate urinary stone formation and blood biochemical parameters. Methods: The investigators will recruit 50 healthy young student volunteers in this study. By simple random sampling technique, volunteers will be allocated to two groups (group 1, control group; group 2, vinegar group).Each participant in vinegar group drink 15ml vinegar ( Ninghuafu, Sanxi, China) at noon and evening respectively for a period of four weeks.The end point of this study is comparison the outcomes of 24-hour urine and blood biochemical parameters between different group and point-in-time.