Active clinical trials for "Calculi"

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.

The purpose of this study was to determine the anti-calculus effect of dentrifice containing 5% sodium pyrophosphate and potassium pyrophosphate in a triple-mask placebo controlled randomized clinical trial.

Flexible ureteroscopy is a recent procedure to treat renal stone. Extracorporeal shockwave lithotripsy was the gold standard treatment for calculi between 5 and 20 mm. In literature, the two procedures are available to treat these stones with a good stone free rate. There is no prospective randomized study comparing these two treatments. Our study will define with a good level of evidence which technique is the best with regard to the stone free rate, secondary procedure rate and adverse effect.

OBJECTIVES: I. Evaluate the ability of a slow-releasing formulation of neutral potassium phosphate to correct hypercalciuria and prevent recurrent stone formation in patients with absorptive hypercalciuria. II. Evaluate the safety of this treatment. III. Compare the efficacy of potassium phosphate to that of potassium citrate.

The aim of the study is to evaluate the predictors of success of oral dissolution therapy in radiolucent renal stones in a large series of patients from a tertiary referral center in order to define the optimum case scenarios where oral dissolution therapy could be implemented.

The goals of this study are to improve the ability of pediatric patients and their caregivers to select surgical treatment options for kidney stones and to enable urologists to use techniques that result in the best outcomes for these surgeries.

Patients who underwent retrograde intrarenal surgery (RIRS) were randomly allocated to general anesthesia (GA) or spinal anesthesia (SA) groups. Renal function was assessed using estimated glomerular filtration rate, and relative renal function was evaluated using nuclear medicine tests. Maneuverability and accessibility were evaluated after every surgery. We analyzed the influence of anesthesia methods on surgical outcomes and renal function in retrograde intrarenal surgery in a prospective, randomized controlled study.

The purpose of this study is to assess if patients treated with silodosin will have a higher spontaneous passage rate of their ureteral stone than those treated with placebo.

Pain associated with renal stone disease is typically caused by an obstructing stone that obstructs the flow of urine, which results in renal collecting system dilatation. Non-obstructing renal calculi that do not cause renal collecting system dilatation are thought to be painless. The objective of this study is to prospectively determine if the removal of non-obstructing renal calculi can reduce or eliminate participant's pain and/or improve their quality of life.

The objective of the present study is to evaluate the surface texture of root after hand instrumentation with Gracey curette, After Five curette and Mini Five curette.Patients having chronic periodontitis and scheduled for extraction were randomized into four groups. Scaling and Root planing was performed by different curettes. Group 1 didn't under go any instrumentation. Group 2 was instrumented with Gracey curette, Group 3 with After Five curette and Group 4 with Mini Five curette. These hopeless teeth were then extracted atraumatically and the specimens were processed and analyzed under a Scanning Electron Microscope. "Roughness and Loss of Tooth substance index" and "Smear layer index" was evaluated using the Scanning Electron Microscope photographs.Means and frequencies were reported using SPSS Version-21.Cross Tabulation was made between the test groups (Control, Gracey Curette, After five and Mini Five) versus "Roughness and Loss of Tooth substance Index" and "Smear Layer Index". Chi square test was applied to see the grade distribution among groups. Frequencies were reported in percentages and means. P. value of 0.05 or less was considered as significant.