View clinical trials related to Kidney Calculi.
Filter by:This study will examine the effects of ureteroscopic lasing technique (dusting, fragmentation and a hybrid approach) on total lasing time and total energy in patients with a large renal calculi burden of single or multiple stones with the sum of its longest diameters between 10-20 mm and having mean Hounsfield units of 1000 or more.
This is a multicenter prospective trial with randomized and observational cohorts assessing patient-reported outcomes and unplanned healthcare utilization following ureteroscopic treatment of renal and ureteral stones, with placement versus omission of a ureteral stent. Eligible participants in the randomization trial will be randomized to ureteroscopy with stent placement or stent omission. Eligible participants that consent to the observational only cohort will complete surveys and the treating physicians will decide the treatment options for the participants. The study team hypothesizes that: - Pain interference change from pre-surgery to Day 7-10 will differ between the two treatment arms. This hypothesis will be evaluated separately in the randomized and observational cohorts. - Unplanned healthcare utilization in the treatment arms will have different unplanned healthcare utilization ranks leading to a win proportion significantly higher or lower than 0.5 in the stent omission arm compared to the stent placement arm. This hypothesis will be evaluated separately in the randomized and observational cohorts.
To predict the outcome of flexible ureteroscopy in the management of renal stones based on preoperative scoring module using five preoperative parameters that have effect on stone free status postoperatively.
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.
The ureteral access sheath (UAS) is an ancillary device widely used by urologists to facilitate fast, repeatable, and safe access to ureters and collecting systems; improve visibility; reduce the risk of infection by reducing intrarenal pressure; and protect ureters and scopes when extracting multiple stones during surgery. Insertion of ureteric access sheath may be difficult due to tight ureter, so sometimes preoperative stenting might be needed. Silodosin is an α1A adrenoceptor with high affinity and selectivity for the ureteric muscle, which may reduce ureteral spasm. Oral a1-blockers can reduce intraureteral pressure, and may reduce maximal ureteral access sheath insertion force.¹ Preoperative silodosin protects against significant ureteral injury related to UAS insertion during fURS and decreases postoperative pain level. Silodosin premedication might be an effective and safe technique to replace prestenting.²
This is a multi-center, prospective clinical trial to assess the effect of TFL for the lithotripsy of kidney stones.
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)