View clinical trials related to Urolithiasis.
Filter by:- A single-center randomized study to evaluate the safety and effectiveness of direct puncture of the caliceal system in mini-percutaneous nephrolithotripsy. - 60 patients - Inclusion criteria: 1. all patients aged 18 to 70 years who are planning mini-PCNL, ready to consent to the study 2. ASA scale 1-3 3. Solitary stone up to 2.5 cm 4. Single access to the caliceal system - Exclusion criteria: 1. Active infectious process 2. Coagulopathies 3. Abnormalities of the urinary system
Randomized comparison of patient outcomes following fluoroscopic guided PCNL versus ultrasound-guided PCNL.
Urinary tract infections (UTI) affect the urine pH and may lead to salt precipitation such as struvite. Bacteria with urease activity are known to alkalinise urine, but not much is known on how pH is changing over time during UTI. This study aims at following urine pH progression at the time of diagnosis of UTI and during the treatment phase. Description of the change in urine pH over time will help understanding the risk of struvite formation and potential timing of intervention.
To investigate the effectiveness of percutaneous nephrostomy catheter placement versus retrograde double J catheter placement in patients with symptoms of obstructive kidney disease (with either infection and/or pain and/or kidney function deterioration) caused by urolithiasis.
Evaluation of safety and effectiveness of ureteral DJ stent with magnet (Blackstar, Urotech), severity of stent-association symptoms and pain level syndrome after stent extraction compared with stent extraction by flexible cystoscope
The evaluation of 24 hour urinary oxalate excretion is the gold standard for diagnosing Hyperoxaluria in patients with recurrent urolithiasis. The relationship of oxalate measurement between spot and 24 hour urine sample has not been studied in Pakistani population before. Thus, it is necessary to see if spot urine samples show good correlation with 24 hour urine samples in our population where the frequency of hyperoxaluria in patients with urolithiasis is reported to be 64.5%. Also, the various pre analytical issues associated with 24 hour urinary collection which may lead to the incorrect or misdiagnosis, need for duplicate testing consuming extra resources and man power. We therefore, in this study, want to see the correlation between 24 hour urinary oxalate and oxalate to creatinine ratio. The aim of our study is to determine the relationship between 24 hour urinary oxalate and spot urine oxalate to creatinine ratio and to identify if oxalate to creatinine ratio can be used as an alternative to 24 hour urinary oxalate
60 patients Inclusion Criteria: - age from 18 to 70 years - Indications for mini-PCNL - ASA score: 1-3 - Single percutaneous access to pyelocaliceal system - Size of solitary calculus up to 2.5 cm Exclusion Criteria: - Active urinary tract infection - Coagulopathy - Clinically significant infravesical obstruction (Qmax less than 10 ml / s, PVR more than 50 ml)
A pivotal study to evaluate the safety and effectiveness of Applaud Acoustic Enhancer when used in conjunction with conventional ureteroscopic laser lithotripsy (URS-LL) in the treatment of subjects with urinary stones.
The purpose of the study is to compare the effects, good and/or bad, of a treatment for removing kidney stones called the SURE procedure for stone evacuation to the standard treatment using a basket for stone removal.
The aim of the study was to compare the ultrastructural changes in the renal parenchyma with the results of postprocessing CT analysis with contrast enhancement in patients with urolithiasis.