Evaluation of the T-tilted Position in Retrograde Intrarenal Surgery Using Flexible and Navigable Suction Access Sheath

What this Trial Is About

Researchers are evaluating the effect of the T-tilted position on the stone-free rate during retrograde intrarenal surgery for kidney stones. This study compares the T-tilted position to the standard lithotomy position in patients with kidney stones up to 2.5 cm in size. The trial aims to determine if the T-tilted position, which combines a slight head-down tilt with lateral positioning, improves surgical outcomes by optimizing access to kidney areas while maintaining patient comfort. Participants will be randomly assigned to one of two groups: one undergoing surgery in the standard lithotomy position with no table tilt, and the other in the T-tilted position with 15 degrees Trendelenburg tilt and 15 degrees tilt away from the surgical kidney side. All surgeries will be performed under general anesthesia using flexible ureteroscopy and a suction access sheath. The procedure includes cystourethroscopy, selective catheterization, and stone removal without special maneuvers. Stone characteristics and kidney anatomy will be recorded. During the study, researchers will assess the stone-free rate by endoscopic examination and video recording at the end of surgery. They will also monitor perioperative complications, operative time, postoperative pain, hospital stay, and costs. The study duration is at least six months. Participants will undergo preoperative evaluation and standardized surgical procedures to ensure consistent data. The research team and patients will not be blinded to group assignments.

Evaluation of Retrograde Intra Renal Surgery in the T-tilted Position