View clinical trials related to Kidney Calculi.
Filter by:The purpose of this study was to test the effect of chronic consumption of Quercetin 500 mg tablets on blood uric acid and other biomarkers in adult males.
This is the third phase (feasibility and impact) of a three-phase project designed to derive, validate and test the feasibility and impact of implementing clinical decision support to safely limit the use of Computerized Tomography (CT) and its accompanying radiation and cost in emergency department patients with suspected renal colic. Hypothesis: Using a before and after model, integration of a clinical prediction rule into decisions about imaging in patients with suspected renal colic will result in a reduction of between 25-50% of radiation received from CT scanning in this population, without adverse affects on patient-centered outcomes.
This is a randomized controlled trial comparing extracorporeal shockwave lithotripsy (ESWL) with and without simultaneous adjunct controlled inversion therapy in the treatment of lower pole caliceal stone.
RESEARCH QUESTION Do ureteric stents with tethers, left in-situ for 1-2 weeks, increase the rate of stent bacterial colonization, urinary bacterial colonization and stent related lower urinary tract symptoms compared to stents without tethers? HYPOTHESIS We hypothesize that ureteral double-J stents with tethers increase the rate of stent bacterial colonization, but do not increase the rate of urinary bacterial colonization or stent related lower urinary tract symptoms compared to stents without tethers when left in-situ for 1-2 weeks.
The investigators will examine in two studies whether citric acid or potassium citrate can reduce calcium phosphate saturation in urine of Calcium Phosphate stone formers.
The purpose of the study is to investigate the impact of ureteral stents on the functioning of ureteral peristalsis (normal contractions in the ureteral organ muscle).
The Boston Scientific Helical Stent is a unique stent designed to improve flexibility and comfort. It is designed to conform more to the shape of the ureter (hollow tube connecting the kidney and the bladder) to ultimately improve patient comfort and decrease the need for painkillers.
Hospitalization for kidney stones in the Inflammatory Bowel Disease (IBD) population is common, particularly among Crohn's patients who had a small bowel resection. This patient population experiences a lifetime occurrence of kidney stone formation as high as 25% accompanied with a high rate of recurrence (the typical rate of stone formation is ~10% in the non IBD population). Giving oral calcium is used to bind oxalate in the intestine in an attempt to reduce the amount of oxalate that is absorbed into the body and to reduce urinary oxalate levels. However, there are no defined guidelines for the optimum dosing of calcium. This study's primary objective is to scientifically define an appropriate range of calcium supplementation that reduce the level of oxalate found in the urine of patients living with inflammatory bowel disease.
Purpose 1. To compare the performance of the two currently employed urinary acidifications tests in stone formers, the furosemide/fludrocortisone and ammonium chloride loading test. 2. To study the impact of polymorphisms in the genes ATP6V1B1, ATP6V0A4 and SLC4A1 on urinary acidification in stone formers.
This study will be conducted to evaluate the protective effects and mechanisms of antioxidants (vitamins A, C, E and Selenium), calcium channel blocker (Verapamil) and angiotensin receptor blocker (Lozartan) against shock wave induced renal injuries.