View clinical trials related to Urolithiasis.
Filter by:A prospective, multicenter, randomized, controlled clinical trial was conducted to compare the efficacy and safety of non-indwelling catheter and indwelling catheter in relieving postoperative catheter-related complications after ureteroscopic lithotripsy. By comparing the pain score and urination urgency score (PPIUS) of patients after ureteroscopic lithotripsy (including flexible ureteroscopy) lithotripsy to provide a reliable scientific basis for indwelling catheter after ureteroscopic lithotripsy.
Percutaneous nephrolithotomy (PCNL) is currently the preferred treatment for upper urinary tract stones larger than 2cm. In the standard PCNL procedure, a nephrostomy tube and a ureteral stent are often placed before the end of surgery. Recently, PCNL without indwelling nephrostomy tube but with indwelling ureteral stent (also called "tubeless PCNL") or PCNL without indwelling nephrostomy tube and ureteral stent (also called "totally tubeless PCNL") has been put into practice. Compared with the standard PCNL , tubeless or totally tubeless PCNL can effectively reduce postoperative pain and shorten hospital stay, while the incidence of complications does not significantly increase. Is it possible not to leave a ureteral stent but leave a nephrostomy tube (also called "stent-less PCNL") after PCNL? In theory, the nephrostomy tube can have certain effect, such as decreasing the risk of post-operative bleeding. On the other hand, not indwelling a ureteral stent can bring benefits to patients. Recently, there is limited research on not indwelling ureteral stent after PCNL, and its safety and feasibility require clinical validation. In summary, investigators conducted a prospective randomized controlled trial to explore the safety and feasibility of not indwelling ureteral stent after PCNL.
Retrograde flexible ureteroscopy (RIRS) is currently the first-line treatment for renal stones < 2cm. Lower pole renal stones(LPS) are a difficult problem for urologists. The flexible negative pressure suction ureteral sheath(f-UAS) can facilitate RIRS to flush out the fragments and dust in time, and provide a clear vision and reduce the renal pelvis pressure(RPP) during operation.Standard lithotomy position is the most commonly used position for RIRS. Besides, T-tilt position is also available for RIRS in special cases. Investigators were inspired by this and proposed the lateral position, which is available in cases of LPS.In long-term practice, investigators have found that the change of position and the use of f-UAS can improve stone-free rate(SFR). Investigators aimed to conduct a prospective randomized controlled trial to compare the SFR of different positions and different ureteral sheaths.
Kidney stone disease causes significant morbidity, and stones obstructing the ureter can have serious consequences. Imaging diagnostics with computed tomography (CT) are crucial for diagnosis, treatment selection, and follow-up. Segmentation of CT images can provide objective data on stone burden and signs of obstruction. Artificial intelligence (AI) can automate such segmentation but can also be used for the diagnosis of stone disease and obstruction. In this project, the aim is to investigate if: Manual segmentation of CT scans can provide more accurate information about kidney stone disease compared to conventional interpretation. AI segmentation yields valid results compared to manual segmentation. AI can detect ureteral stones and obstruction or predict spontaneous passage.
The purpose of this registry is to collect data on patients who have undergone minimally invasive treatments for urinary system stone disease, including percutaneous nephrolithotomy (PCNL), shock wave lithotripsy (SWL), semi-rigid ureterorenoscopy (URS), and flexible ureterorenoscopy (F-URS).
In the medical world more and more procedures are performed with the use of ionizing radiation (x-ray), both diagnostic and therapeutic. The main and most known risk is the development of malignancies as a result of the use of ionizing radiation. Purpose of this study: To examine the patient radiation dose (PRD) if the frames per second (FPS) are set differently during the five most performed endourological procedures where fluoroscopy is used (insertion/replacement of ureteral stent, (mini-)percutaneous nephrolithotomy (PCNL/PNL), ureterorenoscopy (URS) and extracorporeal shock wave lithotripsy (ESWL/SWL)) and to propose an acceptable PRD for these procedures in a multicentric study.
The goal of this randomized clinical trial is to determine if there is difference in pathological and clinical outcomes between MOSES and TFL in the transurethral laser enucleation of bladder tumors. The main question it aims to answer is: Is there a difference in pathological and clinical outcomes between MOSES Holmium and Thulium Fiber Laser (TFL) in the transurethral laser enucleation of bladder tumors? Participants will randomized to either TFL of MOSES arm for their bladder resection procedure.
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease, ranging from pure steatosis to non-alcoholic steatohepatitis and ultimately to liver cirrhosis. In order to study the association between NAFLD and nephrolithiasis while minimizing the confounding effect of metabolic syndrome, we investigated the impact of different degrees of NAFLD severity on potential risk factors for stone formation.
as the supra eleventh puncture PCNL is not well investigated in the literature we will conduct that randomised trial in comparison to the subcostal one
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate. The study will recruit adult patients with a history of calcium oxalate kidney stones and healthy volunteers without kidney stones. Participants will - ingest fixed diets containing low and moderately high amounts of oxalate for 5 days at a time - ingest a soluble form of oxalate and sugar preparations to test gut permeability - collect urine, blood, stool and breath sample during the fixed diets and the soluble oxalate test