View clinical trials related to Kidney Calculi.
Filter by:This is a prospective controlled study to compare the efficacy and safety of two methods of flexible urethroscopy in patients with urolithiasis, as well as the effect of surgery on quality of life.
Total tubeless Percutaneous nephrolithotomy (PCNL) is a modified surgical method of PCNL surgery, that is, there is no indwelling nephrostomy tube and double-J tube during PCNL surgery. Compared with traditional PCNL surgery, it has the advantages of reducing pain, shortening operation time and reducing operation cost. Since this procedure was first performed in 2004, several randomized clinical studies have verified the safety and efficacy of total tubeless PCNL. Conventional total tubeless PCNL surgery requires the patient to first undergo retrograde transurethral ureteroscopic insertion of the ureteral catheter in the lithotomy position, and then change the patient to the prone position. However, a large number of literature reports and the surgical experience of PCNL in the past 20 years tell the investigators that the reverse insertion of ureteral catheter can cause many recent surgical complications.The study planned to perform the operation in the prone position without reverse insertion of a ureteral catheter in the total tubular PCNL surgery.
The purpose of this study is to assess the accuracy of ultrasound and traditional fluoroscopy to find the residual fragments before retrograde intrarenal surgery is complete. This would ultimately limit the need for radiation exposure and improve the quality of clinical care given to patients and healthcare teams.
The aim of this study is to compare outcomes of endoscopic combined intrarenal surgery (ECIRS) with the multi-tract percutaneous nephrolithotomy for management of complex renal stones.
Prior studies have shown that the source of dietary protein can have a significant impact on urinary stone risk. However, whey and plant protein isolates have not been compared. This is an important distinction as protein supplements fortified foods are increasingly popular. Herein, we seek to investigate the effect of different protein supplements, in an otherwise identical diet, on urinary stone risk.
This study is looking to understand the role of oxalate on kidney stone development and immunity. This study will enroll healthy participants and participants with calcium oxalate kidney stones (CaOx KS). Participants will be in this study for about 3 weeks, consume controlled diets, and provide blood and urine specimens.
To define the effect of crystal light, potassium citrate, or both on urinary stone risk factors in patients with a history of stone and hypocitraturia/low pH
In the available literature, there is a lack the risk categorization of infectious complications after RIRS with subsequent recommendation as regard to AP in different risk patients. Therefore this study is planning to investigate the optimal protocol for AP prior to RIRS in high-risk population through comparing the enhanced regimen (2days) vs. the extended regimen (7 days) in a randomized controlled trial (RCT).
perform a comparative randomized trial comparing the efficacy and safety of percutaneous nephrolithotomy (PCNL) in the prone and modified supine positions in management of complex renal stones
The aims of this study are to 1) Conduct a randomized clinical trial of selective versus empiric diet plus pharmacologic therapy in high-risk stone formers and 2) Determine adverse effects from, and adherence to selective and empiric strategies.