RENAL CALCULI

This study compares a special ureteral access sheath with built-in suction (FANS) to the standard sheath used during kidney stone removal surgery. About 134 adults with kidney stones at least 5 mm wide will be randomly assigned to one of the two devices. The goal is to see if the…

This study compares two surgical techniques for removing kidney stones larger than 2 cm. One method uses a special flexible tube with suction, and the other uses suction directly through the scope. The goal is to see which approach is faster, removes more stone, has fewer complic…

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 compares two methods of using shock waves to break up kidney stones: gradually increasing the energy versus using the same energy level throughout. The goal is to see which approach clears stones more completely and safely. About 100 adults with kidney stones will take…

This study looks at whether a specific nerve block, called an erector spinae plane block, can help reduce pain and the need for strong painkillers after kidney stone removal surgery. About 60 adults having this surgery will either get the nerve block plus standard care or standar…

This study compares two patient positions during a minimally invasive surgery for kidney stones smaller than 2 cm. About 70 adults will be randomly placed either on their back or on their side to see which position helps clear stones better and reduces complications. The goal is …