View clinical trials related to Kidney Calculi.
Filter by:Can Shear Wave Elastography predict the success of Shock-Wave Lithotripsy used in renal stones treatment ? A prospective study
Evaluation of Prevalence, Molecular and Genetic Backgrounds of Calcium-Based stones among Patients with Renal Calcular Disease in Mansoura Urology and Nephrology Center
Percutaneous nephrolithotomy (PNL) is the gold standard recommended treatment technique for kidney stones larger than 20 mm. For kidney stones between 10 - 20 mm, both shock wave lithotripsy (SWL) or flexible ureterorenoscopy (f-URS) are recommended as the first choice of treatment and PNL is recommended as the second. In patients who are planned to undergo f-URS, a ureteral access sheath (UAS) is placed in the ureter at the beginning of the operation in order to provide a better image, reduce intra-renal pressure, easier stone fragment retrieval and shorter operative time. In certain cases, such as ureteral stricture, kink or edema, the ureteral access sheath may not be able to successfully inserted into the ureter. At this stage, double-J (JJ) stent can be inserted into the ureter to create passive dilatation, and a second f-URS session can be scheduled a few weeks later. Another option is to perform PNL operation to the patient in the same session. In this randomized prospective study, we aimed to compare these two different surgical approaches in terms of patient comfort and surgical success in patients with kidney stones between 10 - 20 mm in which access sheath insertion was failed in the initial f-URS session.
The aim of this study is to compare the effectiveness of Ultrasound-Guided Percutaneous nephrolithotomyin different positions supine, prone positions and flank suspend supine position in renal stones treatment.
To identify predictors of patients postoperative readmission after PNL
The primary purpose of this study was to compare the effects of erector spinal plane block (ESP) and IV patient-controlled analgesia (PCA) performed to provide analgesia in percutaneous nephrolithotomy surgeries on visual analog skala (VAS), additional analgesia need, patient satisfaction and mobilization times.
The purpose of this study is to collect descriptive performance data using the MONARCH Platform, Urology (a novel robotic device) to perform mini-percutaneous nephrolithotomy (kidney stone removal) procedures. Data gathered from this study will be used to optimize the robotic platform and inform training and education material for the future users.
This is a randomized prospective study to compare stone free rates and operative efficiency of two laser systems used during retrograde intrarenal surgery for kidney stone disease: 1. A superpulsed thulium fiber laser (thulium) 2. A pulse modulated high power holmium laser (Holmium)
Double J (DJ) Stenting is a commonly done procedure in endourology to ensure ureteric patency following Urological Interventions. DJ stents are available in various sizes. This study is focused on comparing two different sizes of DJ Stents, one standard sized 6Fr and other small sized 4Fr. DJ stents are uncomfortable to the patients and few studies have indicated that small size of stents are might be less troublesome. Through this study we plan to establish a relation between different symptoms and size of DJ stents. Study will be conducted at Tribhuvan University Teaching Hospital (TUTH),Maharajgunj.All adults with sterile urine culture prior to stenting will be taken into consideration. Informed consent will be taken and two randomized groups of 6Fr and 4Fr will be formed and data entry done in MS Excel and analysis done by SPSS. The study is expected to take duration of 12months. Ureteral Stent Symptom Questionnaire (USSQ) will evaluate the symptoms on third day and seventh day of stent placement and on Day of stent removal. We expect 4Fr stent to be superior to 6Fr for reduction of stent related symptoms.
Extracorporeal shock wave lithotripsy (ESWL) is the least invasive and effective treatment for upper ureteric stones with a stone clearance rate of 60-90%. Tamsulosin is an alpha-blocker widely used in urological practice to relax smooth muscle of the prostate and bladder neck. Its role as part of medical expulsion therapy for the treatment of patients with kidney and ureteric stones has proved to be of considerable success. However, its role in clearing upper ureteric stones as an adjunct to ESWL is controversial. Therefore, this study will be conducted to evaluate its role in stone clearance along with extracorporeal shock wave lithotripsy in patients with upper ureteric stones