Flexible negative pressure suction ureteral access sheath combined with ureteroscopy in the treatment of upper urinary tract calculi: A meta-analysis

Compared to traditional ureteral access sheath, applying negative pressure suction with F-UAS for treating upper urinary tract calculi has enhanced stone clearance rates, expedited patient discharge, and decreased postoperative complications. Consequently, F-UAS may represent a superior option for retrograde internal surgery in clinical practice.