KIDNEY STONES

This study will test a new tool called the CVAC system, which uses a steerable tube to suction out kidney stones during surgery. About 1,000 people who need stone removal will either get this new method or a standard one. The main goal is to see if the CVAC system leaves less sto…

This study compares two new suction-equipped tools (FANS and CVAC) for removing medium-to-large kidney stones. About 159 adults with stones 8-20 mm will be randomly assigned to one device. The main goal is to see which tool leaves the kidney more stone-free, as confirmed by CT sc…

This study compares two common procedures for removing small kidney stones (less than 15 mm) located in the lower part of the kidney. About 70 adults will be randomly assigned to receive either flexible ureteroscopy (a thin scope through the urinary tract) or shock wave lithotrip…

This study tests a new robotic system called LARC that helps surgeons precisely guide a needle into the kidney during surgery to remove large or difficult kidney stones. The goal is to make the procedure safer, faster, and more effective by reducing the need for separate pre-surg…

This study will compare two types of ureteral access sheaths used during kidney stone surgery. One sheath has a suction feature to remove fluid and stone fragments, while the other does not. The goal is to see which device leads to better stone clearance and fewer complications. …

This study compares two suction-assisted techniques used during minimally invasive kidney stone surgery. The goal is to see which method better removes stone fragments and lowers the risk of infection. About 126 adults with medium-sized kidney stones (2-3 cm) will be randomly ass…

This study tests three common pain relievers (ibuprofen, paracetamol, and tenoxicam) against a placebo during shock wave treatment for kidney stones. About 160 adults will rate their pain at several points during the procedure. The goal is to find which drug works best and to see…

This study compares two types of nerve blocks (dual-approach external oblique fascial plane block and erector spinae plane block) for pain control after percutaneous nephrolithotomy, a surgery to remove large kidney stones. About 90 adults will be randomly assigned to receive one…

This study will compare a new, thinner flexible ureteroscope (HugeMed HU30M) to standard scopes for removing kidney stones up to 2.5 cm. Researchers want to see if the new scope is just as good at clearing stones but costs less. About 75 adults will take part at the University of…

This study will test whether taking apple cider vinegar every day for a short time changes the chemistry of urine in adults, both those who have had calcium oxalate kidney stones and those who haven't. Researchers will measure substances in urine like citrate, pH, calcium, and ca…

This study tests a program where a trained navigator helps kidney stone patients attend their follow-up urology appointments after an ER visit. About 31 adults at high risk of missing appointments will receive support for 12 weeks. The goal is to see if this approach is feasible …