View clinical trials related to Kidney Calculi.
Filter by:The EUA Urolithiasis Guidelines Panel meta-analysis suggest that mPNL is at least as efficacious and safe as sPNL for the removal of renal calculi. However, the quality of the evidence was poor, drawn mainly from small studies, the majority of which were single-arm case series, and only one of which was RCT. The risks of bias and confounding were high, highlighting the need for more reliable data from RCTs. So, the Panel recommended for more clinical research . The aim of this study is to compare between PNL and mPNL through a randomized controlled trial.
This is a randomized, placebo-controlled, double-blinded study examining the use of perioperative pregabalin in ureteroscopy with stent placement. Ureteroscopy is typically performed for kidney or ureteral stones, but may be performed for other reasons such as for the diagnosis and possible treatment of certain kinds of cancers. As part of the same surgery, a ureteral stent is often placed. The surgery and the stent can cause discomfort, and patients may receive narcotic pain medicine. In other surgeries, a single dose of pregabalin, around one hour before surgery has been shown to decrease the need for pain medication after the surgery. This work will test whether this is true in ureteroscopy by giving eligible patients who agree to participate either pregabalin or a placebo shortly before surgery then examining how much pain medication they use after surgery. A placebo is an inactive medication. Neither the study participant nor the study staff will know who received pregabalin and who received placebo until after the study is over. For completing surveys, patients will receive compensation for their time in the form of gift certificates.
This study will test whether oxalate stimulates urinary crystals and impacts the immune system in healthy subjects using two controlled diets (low and high oxalate).
The purpose of this study is to evaluate mitochondrial function in white blood cells and platelets from healthy individuals following dietary oxalate intake.
Burst Wave Lithotripsy (BWL) is a novel method of urinary stone fragmentation that uses multi-cycle bursts of low amplitude ultrasound to induce stone fracture. This is in contrast to traditional extracorporeal shock wave lithotripsy (SWL), which employs a brief single compression/tensile cycle of high amplitude (shock) waves to achieve stone fracture. This is a single-arm feasibility study to test the ability of BWL to comminute (fragment) stones in humans.
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.
The goal of this proposal is to determine the contribution and significance of obesity to urinary oxalate excretion and thus calcium oxalate kidney stone disease. Successful completion of the study will provide insight into the link between obesity and kidney stone disease and should identify future strategies to treat this disease.
This is a double-blind, study to evaluate the performance of NV-VPAC1 PCa Urine Diagnostic Test in three distinct populations being treated at the Intermountain Urology Clinic. The first population (positive control) is comprised of men with biopsy-confirmed PCa who are scheduled for prostatectomy. The second population (negative control) is comprised of men with benign prostatic hypertrophy (BPH) who are scheduled for transurethral resection of the prostate (TURP). The third population (negative control) is comprised of men or women with bladder/kidney stones who are scheduled for a cystoscopy.
Most flexible ureteroscopes that are used to treat kidney stones have been reusable. Recently, advances in technology have resulted in single-use (disposable) ureteroscopes to become available. The investigators are interested in determining if the performance of the two types of scopes are equivalent. This will help guide institutions in the future to purchase the best scopes for their patients.
compare the outcomes of SWL for renal and upper lumbar ureteric stones using the alternating bidirectional approach versus the standard approach.