Comparative study of ureteral access sheath versus suction access sheath in retrograde intrarenal surgery.

ABSTRACT:

Introduction

Retrograde intrarenal surgery (RIRS) is a minimally invasive technique for managing renal and upper ureteral stones. Ureteral access sheaths (UAS) facilitate instrument access and reduce intrarenal pressure, but their impact on stone-free rates (SFR) remains debated. Suction ureteral access sheaths (S-UAS) offer improved flexibility and can be connected to suction devices, enhancing stone fragment removal. This study aims to compare the outcomes of traditional UAS and S-UAS in RIRS.

Methods

A retrospective cohort study was conducted at Chimei Medical Center from January 2022 to December 2024, including 104 patients who underwent RIRS with either traditional UAS (n = 53) or S-UAS (n = 51). Baseline characteristics, operative time, stone-free rates (SFR), postoper

SUBMITTER: Chiang TY 

PROVIDER: S-EPMC12717737 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature