Effect of Non-Clamping and Sutureless Technique on Postoperative Renal Function in Robot-Assisted Partial Nephrectomy

In the researchers' words

Partial nephrectomy is an operation that removes a kidney tumor while leaving the rest of the kidney in place. It is used to treat selected patients with small tumors confined to the kidney. Robot-assisted surgery allows the surgeon to control surgical instruments precisely during this procedure. During standard surgery, the surgeon temporarily clamps the artery supplying the kidney to reduce bleeding while removing the tumor. The surgeon then closes the wound with stitches to help prevent bleeding and urine leakage. However, temporarily stopping blood flow and stitching the surrounding kidney tissue may affect how well the kidney works after surgery. An alternative approach, called "off-clamp, sutureless" surgery, removes the tumor without clamping the kidney artery and uses materials that help stop bleeding instead of stitches to close the wound. This approach may reduce injury to healthy kidney tissue. Early studies, including research at the investigators' hospital, suggest that it may help preserve kidney function. However, stronger evidence is needed to determine how its benefits and risks compare with standard surgery. This study will randomly assign participants to receive either off-clamp, sutureless robot-assisted partial nephrectomy or standard robot-assisted partial nephrectomy with artery clamping and stitches. The study will compare kidney function and…