Ureterolithiasis

This early-phase trial tests whether a robotic bladder transplant from a deceased donor is feasible and safe for people with severe bladder problems. Only 5 participants will be enrolled. The main goal is to see if the transplanted bladder gets good blood flow. If it works, it mi…

This study tests whether new software for ultrasound machines can better detect and measure kidney stones compared to standard methods. Researchers will scan 370 adults with known calcium-based kidney stones and compare the results to CT scans and surgical findings. The goal is t…

This study compares two laser methods for breaking up kidney and ureteral stones during surgery. One method uses standard laser pulses, the other uses a newer 'Moses 2.0' pulse mode. Researchers want to see if the newer mode reduces surgery time and improves stone clearance. Abou…

This study compares two drugs—methocarbamol and oxybutynin—to see which works better for pain and discomfort caused by a ureteral stent placed after kidney stone surgery. About 126 adults aged 18 to 80 who have the surgery will take one of the study drugs along with standard pain…

This study was designed to measure how often urine flows backward from the bladder into the ureter after placing a special stent (RELIEF) in people with kidney stones. Researchers planned to use bladder X-rays to check for reflux and track any symptoms. However, the study was wit…

This study follows 1,600 people with small kidney stones (4 mm or less) to see how often they pass without help. Participants report symptoms, give blood, and get a follow-up CT scan. The goal is to find out if pain, stone size, or location can predict natural passage within 4 to…