Active clinical trials for "Kidney Calculi"

The investigators objective is to determine if urinary electrolyte abnormalities exist in only one or both kidneys in participants with and without a history of kidney stones. To meet this objective, the investigators are going to take urine samples from each kidney at the time of kidney stone surgery. The samples will then be analyzed for absolute and relative differences in the concentrations of urine electrolytes, such as calcium.

The Study of whether or not Ureteral Stent Length affects patient comfort after electro-shock wave treatment for kidney stones.

Gouty diathesis describes uric acid or calcium oxalate nephrolithiasis and low urinary pH (<5.5). A hereditary component has been outlined for several forms of nephrolithiasis (such as hypercalciuria, hyperoxaluria, cystinuria, renal tubular acidosis), leading to the hypothesis of a genetic predisposition to nephrolithiasis. At the Unit of Nephrology, Ospedali Riuniti di Bergamo, more than 100 patients affected by gouty diathesis are followed. Fifty percent of them has a familiarity for kidney stones formation. The aim of our study is to identify the genetic factors that predispose to the development of nephrolithiasis in patients with gouty diathesis.

This study will be a randomized controlled study comparing the use of two clinical management strategies in nephrostomy tube management following percutaneous nephrolithotomy (PCNL). The first strategy entails using contrast-enhanced ultrasound (CEUS) to evaluate the renal collecting system (1). This is a new imaging approach applying ultrasound machines with special software in combination with intraluminal ultrasound contrast agent (Lumason) injection, which is an FDA-approved ultrasound contrast agent (2). The second strategy is a nephrostomy tube capping trial combined with low dose non-contrast computed tomography (CT) scan, one of the most frequently utilized clinical management strategies currently used in clinical practice (3).

Percutaneous nephrolithotomy (PNL) has been considered as the first-line choice for the management of >20mm kidney stones. Microchannel percutaneous nephrolithotomy (Mini PCNL) which takes nephrolithotomy channel size less than or equal to 18, was first used in the treatment of children with kidney stones in 1997, then gradually applied to adult, aims to achieve the similar stone clearance rate as the standard channels, at the same time, reduce the complications. At present, the use of percutaneous renal surgery in our country is more than 18F plastic peel-away sheath, with the access sheath with a suction-evacuation function was first used by Guohua Zeng and so on. But there is still a lack of high quality evidence of Evidence-based medical evidence to compare the two kinds of sheath for the safety and effectiveness. Therefore, this study provides a reliable theoretical basis for the choice of the sheath for the treatment of 2-5cm size Kidney, and ultimately benefit patients with 20mm.

The current study is designed to assess the efficacy of a single shot ESPB with Dexmedetomidineversus continuous ESPB in perioperative analgesia for PCNL. Both techniques are conducted for patients undergoing PCNL under GA.

To study the Effectiveness of single use flexible Ureteroscopes in treatment of renal stones

The study aims to investigate the pharmacokinetic parameters and its antioxidative effects in Thai healthy men.

A. Synopsis This protocol comes to direct the experiment to be performed on the Aqueduct Automatic Continuous Irrigation system. The Aquaduct System is aimed at reducing risks to the patient by decreasing the irrigation fluid pressure he may be exposed to, reducing the procedure time and therefore the anesthesia time, reducing the manual handling of the sterile bags and the risk of contamination and more. In general since there is no new procedure suggested and the equipment does not actually come into contact with the human body in any direct way, there is no need to have a clinical study for the regulation purpose. The reason for performing this experiment is to demonstrate the new system and to find out the best way to operate it in order to improve the process and reduce risks. This information will serve the development of most suitable automation solution for achieving the long desired continuous irrigation. The experiment will be performed in the OR in MIS procedures, and will replace the standard gravitational manual method of performing the irrigation. The surgeons and the medical staff of the OR will be directed with the set up and operation of the system prior to using it. The experiment will be accompanied at all times with a knowledgeable representative of the research originator. A maximum of 30 procedures will be analyzed during a period of approximately one month. The surgeons and the medical staff will report their impression of using the system during the procedures and will recommend the best settings achieved. This information will be used to improve the system performance and design.

This study intends to characterize the affect of sodium and potassium citrate in the diet on renal function.