View clinical trials related to Urinary Calculi.
Filter by:The aim of this study is to evaluate the clinical efficacy and safety of MET after ESWL in pediatric urolithiasis.
Urinary calculi have become a global public health problem, which brings a huge economic burden to society and individuals. The pathogenesis of urinary calculi is not completely clear. Supersaturation of urinary components is a necessary condition for the formation of urinary calculi. The causes of stone formation are closely related to diet, drugs, metabolic disorders, basic diseases, genetic factors, environment and so on. Diet essentially determines the composition of urine, which affects the formation of urinary calculi. The effect of dietary phosphorus intake on stones is not clear. There is a lack of data to support dietary phosphorus as an influencing factor of stone formation. Phosphorus is present in most foods. 24h urine composition analysis is of great value in predicting the occurrence and composition of urinary calculi. However, due to the interaction between urine components, a single urine component can not well predict the occurrence of stones. Therefore, the researchers introduced the relative supersaturation of common stone components in urine to predict the incidence of stones. Therefore, we want to give healthy adults a diet with different phosphorus content for a period of time to clarify the effect of phosphorus in the diet on 24h urine composition level and urine relative supersaturation, so as to further explore the relationship between dietary phosphorus and the incidence of urinary calculi. To provide more clear recommendations for early prevention of urinary calculi, and provide more evidence for clinical decision-making, thereby reducing the incidence rate of urinary calculi.
This is an observation, single site-study with one study visit during which all data and samples will be collected. Study participants will be asked to provide blood, urine, and fecal samples so that the investigators may study the differences in the gut microbiota, vitamin K2 levels, and other parameters between participants who form kidney stones and those who do not.
A pivotal study to evaluate the safety and effectiveness of Applaud Acoustic Enhancer when used in conjunction with conventional ureteroscopic laser lithotripsy (URS-LL) in the treatment of subjects with urinary stones.
Urolithiasis has an increasing incidence and prevalence worldwide, and some patients may have multiple recurrences. Because these stone-related episodes may lead to multiple diagnostic examinations requiring ionizing radiation, urolithiasis is a natural target for dose reduction efforts. Abdominopelvic low dose CT, which has the highest sensitivity and specificity among available imaging modalities, is the most appropriate diagnostic exam for this pathology. The main objective of this study is to evaluate the diagnostic performance of ultra-low dose CT using deep learning-based reconstruction in urolithiasis patients.
This is a prospective, open-label, multi-center, single-arm (non-randomized) study to assess the safety and effectiveness of breaking stones in the upper urinary tract using the SonoMotion Break Wave technology. Up to 30 subjects will be included. The procedure will be performed in a hospital surgical environment as an outpatient (without being admitted) or in a non-surgical environment such as a clinic or office procedure room. The procedure will be performed under varying levels of anesthesia ranging from no anesthesia to general anesthesia (fully asleep). Stones will be limited to ≤ 10 mm for lower pole stones and ≤ 20 mm everywhere else. Safety will be measured by the self-reported occurrences of adverse events, unplanned emergency department or clinic visits, and the need for further intervention. Fragmentation will be measured by self-reported stone passage and a comparison of computed tomography (CT) images before and after the procedure.
A randomized clinical trial to investigate the impact of increased fluid intake and increased urine output on the recurrence rate of urinary stone disease (USD) in adults and children. The primary aim of the trial is to determine whether a multi-component program of behavioral interventions to increase fluid intake will result in reduced risk of stone disease progression over a 2-year period.
compare the outcomes of SWL for renal and upper lumbar ureteric stones using the alternating bidirectional approach versus the standard approach.
This study intends to use in patients with renal tissue and blood samples, screening and identification of renal tissue hURAT1 regulating the expression of micro-RNA, for further study of uric acid stone formation mechanism and the occurrence of clinical preventive uric acid stones provide new clues and new intervention targets.
A total of 20 subjects presenting with urinary stone(s) in the kidney or ureter will be treated with an extracorporeal shockwave lithotripsy device to fragment the stones. Subjects will be followed for 14 days. If at the 14 day follow-up visit the subject continues to present with a stone size 4 mm or greater will have an option of retreatment or other intervention. If the subject consents to be retreated at this time, this subject will be followed up for another 14 days.