Utilization of flexible ureteroscopy in conjunction with flexible and navigable suction ureteral access sheaths for the management of 1-2 cm complex lower calyceal calculi.

ABSTRACT:

Purpose

To evaluate the efficacy and safety of flexible ureteroscopy (FURL) combined with flexible and navigable suction ureteral access sheaths (FANS) compared to conventional FURL for treating 1-2 cm complex lower calyceal stones.

Methods

A retrospective single-center study was conducted at the Affiliated Hospital of Shandong Second Medical University, analyzing patients treated between July 2023 and February 2025. Inclusion criteria were: (i) preoperative CT diagnosis of 1-2 cm single lower calyceal stones; (ii) preoperative intravenous urography (IVU) identifying direct insertion of minor calyces into the renal pelvis or branched fusion forming major calyceal openings; and (iii) surgeries performed by one fellowship-trained endourologist for procedural standardization. E

SUBMITTER: Zhu Z 

PROVIDER: S-EPMC12628969 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature