View clinical trials related to Urolithiasis.
Filter by:In the medical world more and more procedures are performed with the use of ionizing radiation (x-ray), both diagnostic and therapeutic. The main and most known risk is the development of malignancies as a result of the use of ionizing radiation. Purpose of this study: To examine the patient radiation dose (PRD) if the frames per second (FPS) are set differently during the five most performed endourological procedures where fluoroscopy is used (insertion/replacement of ureteral stent, (mini-)percutaneous nephrolithotomy (PCNL/PNL), ureterorenoscopy (URS) and extracorporeal shock wave lithotripsy (ESWL/SWL)) and to propose an acceptable PRD for these procedures in a multicentric study.
The goal of this randomized clinical trial is to determine if there is difference in pathological and clinical outcomes between MOSES and TFL in the transurethral laser enucleation of bladder tumors. The main question it aims to answer is: Is there a difference in pathological and clinical outcomes between MOSES Holmium and Thulium Fiber Laser (TFL) in the transurethral laser enucleation of bladder tumors? Participants will randomized to either TFL of MOSES arm for their bladder resection procedure.
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate. The study will recruit adult patients with a history of calcium oxalate kidney stones and healthy volunteers without kidney stones. Participants will - ingest fixed diets containing low and moderately high amounts of oxalate for 5 days at a time - ingest a soluble form of oxalate and sugar preparations to test gut permeability - collect urine, blood, stool and breath sample during the fixed diets and the soluble oxalate test
The goal of this trial is to test if colonization with the gut bacteria Oxalobacter formigenes leads to a reduction in urinary oxalate excretion in patients with calcium oxalate kidney stone disease. The study will recruit adult participants with a history of calcium oxalate kidney stones who are not colonized with Oxalobacter formigenes. Participants will - ingest fixed diets containing low and moderately high amounts of oxalate for 4 days at a time - collect urine, blood and stool samples during the fixed diets - ingest a preparation of live Oxalobacter formigenes to induce colonization with Oxalobacter formigenes
This is a randomized controlled trial which aims to compare the efficacy and safety of Thulium fiber laser (TFL) and holmium:yttrium-aluminum-garnet (Ho:YAG) laser ablation during the treatment of upper urinary tract stone disease with flexible ureteroscopy, demonstrating clinical superiority of TFL.
The purpose of this study is to clarify the fundamental processes underlying behavior change, maintenance, and adherence during and after a 3-month fluid intake intervention period.
The aim of this study is to analyze the prevalence, effect on quality of life, and treatment-related behaviors for renal colic and urolithiasis in a population-representative sample of Poles. We will be using an Internet interview format for renal colic and urolithiasis evaluation. The study will include respondents representative for age and place of residence with adequate proportions of respondents from urban and rural areas.
A qualitative research study conducted in hospitals across England, in which staff members will be interviewed. We will interview staff who are directly or indirectly involved in delivering care for patients undergoing the operations of interest; namely bladder tumour resection, prostate resection or enucleation, and ureteroscopy for upper urinary tract stones. We hope to find out the reasons why some hospitals can perform day-case surgery with very high rates, and why others do not. We also hope to find out about any unexpected outcomes observed when performing day-case surgery for the operations of interest. Staff working in a range of different hospitals from across England with varying day-case rates will be interviewed. Hospitals in large city and more rural areas will be assessed. Interviews are anticipated to take place over a six month period. The study will end when "saturation" is achieved, whereby no new themes are identified through interviews. Saturation will be sought for each individual operation of interest.
The aim of this study is to assess the quality of life (QoL) in pediatric patients with urinary stone disease.
The incidence of stone disease of the urinary tract in children is increasingly increasing with a remarkable economic impact for its management. This incidence is variable according to race, geographic region, socio-economic status and dietary habits. Oxalo-calcium stones are the most common but the biochemical nature of urinary stones varies depending on the region where those of a phosphatic nature are characterized by a higher incidence in Europe. The diagnosis is confirmed by imaging. The unprepared abdomen (ASP) has low diagnostic accuracy. The scanner is the reference tool but remains an irradiating examination. Risk factors for disease recurrence include primarily the presence of an underlying urinary metabolic abnormality and young age. Urinary metabolic abnormalities vary from one study to another. The understanding of lithogenesis, its evaluation as well as the therapeutic options is essential for adequate and adapted management in the pediatric population.