View clinical trials related to Nephrolithiasis.
Filter by:To investigate the relationship between neutrophil count, lymphocyte count, neutrophil-to-lymphocyte count ratio (NLR), and postoperative fever in patients undergoing percutaneous nephrolithotomy (PNL).
Ultraslow full-power SWL versus slow power-ramping SWL in stones with high attenuation value
The investigators aim at this study to prospectively assess procedure-related outcomes after RIRS for renal calculi less than 20 mm, including stone free rate (SFR), predictors of successful outcome, complications types/rate, readmission rate and the need of auxiliary procedures. In addition, patient-reported outcomes after this modality of intervention are going to be assessed.
Pain associated with renal stone disease is typically caused by an obstructing stone that obstructs the flow of urine, which results in renal collecting system dilatation. Non-obstructing renal calculi that do not cause renal collecting system dilatation are thought to be painless. The objective of this study is to prospectively determine if the removal of non-obstructing renal calculi can reduce or eliminate participant's pain and/or improve their quality of life.
The aim of the present study to perform a full cost analysis for the complete clearance of calyceal stones by retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PNL) for the treatment of lower calyceal stones between 1 and 2 centimeters (cm) in size.
There are two options for postoperative pain management: opioid and non-opioid analgesia. Pain outcomes will be compared in patients undergoing ureteroscopy and percutaneous nephrolithotomy by randomly administering opioid and non-opioid analgesia.
Background: The exit strategy after ureteroscopy for stone treatment remains a topic for discussion. Current EAU guidelines on urolithiasis state that postoperative stenting is indicated in patients at increased risk of postoperative complications. Stenting is not considered necessary in all other cases, and after uncomplicated procedures. Objective: To analyse the postoperative ureteral stenting strategy in clinical practice looking at the indication, type of stents used and the duration of stenting after ureteroscopy for stone treatment. Furthermore, the investigators will examine in what setting the stents are being removed postoperatively. Study design: This study is a prospective, observational, international, multicentre registry study executed by uCARE. Study population: All patients >18 years with a ureter or renal stone who are planned for ureteroscopic treatment by semi-rigid and/or flexible ureteroscopy are eligible for this study.
The investigators aimed to evaluate whether these parameters could be guides for us in the selection of RIRS or Mini-PNL procedures in kidney stones that are smaller than 2 cm. The patients that have kidney stones smaller than two cm and be planned to undergo surgery were randomized into 2 groups prospectively. RIRS was performed in the RIRS group using a 7.5-F fiberoptic flexible ureterorenoscope while Mini-PCNL group was dilated up to 16.5F and mini-PCNL was performed with 12F nephroscopy. Preoperative characteristics, operative and postoperative results were compared in two groups. Thereafter, intra and intergroup comparisons were made to determine the effects of HU value, indicating the stone density, higher or less than 677 and the stone location on stone-free rates.
This is a randomized trial to determine the effectiveness of a clinical decision support tool on image ordering for patients with suspected nephrolithiasis. Patients who present with acute unilateral flank or abdominal pain in whom emergency department providers suspect nephrolithiasis will receive either the clinical decision support tool or no tool (usual care).
Percutaneous nephrolithotomy (PCNL) is a minimally- invasive procedure for removing kidney stones. The small incision of PCNL is performed medially from the posterior axillary line according to stones location. Despite the small skin incision patients suffer from postoperative pain due to visceral pain and intercostal nerve injury. The aim of this study is to evaluate the perioperative analgesic effect of subcostal transversus abdominis plane (TAP) block performed prior to PCNL procedure. Primary outcome of our study was Morphine consumption at 48th hour after the surgery. Secondary outcomes were perioperative fentanyl consumption; postoperative Verbal Analog Scale and additional analgesic drug requirement.