Flexible ureteroscopy under local anesthesia for 2-4 cm renal stones: FANS outperforms traditional sheaths.

Hai Chang, Junwu Li, Xi Qu, Yuanyuan Bai, Shengjun Luo

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Article in Urolithiasis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Hai Chang *Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Junwu Li *Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Xi QuDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Yuanyuan BaiDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Shengjun LuoDepartment of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China. luosheng0618@163.com.

Funding

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6 · The paper itself

Abstract

To evaluate the efficacy and safety of a Flexible and Navigable Suction Ureteral Access Sheath (FANS) in flexible ureteroscopic lithotripsy (FURL) under local anesthesia for renal stones 2-4 cm. We retrospectively analyzed clinical data from patients with renal stones 2-4 cm who underwent local anesthesia FURL from January 2023 to December 2024. Patients were divided into two groups based on the type of sheath used: FANS or traditional ureter access sheath (T-UAS) group. Demographic data and perioperative indicators were compared. A total of 372 patients were included in the study, with 187 in the FANS and 185 in the T-UAS group. FANS achieved an 78.6% one-time stone-free rate (SFR) (vs. 57.8% in T-UAS, P < 0.001), with significantly lower postoperative fever (2.1% vs. 8.1%) and steinstrasse (1.1% vs. 5.9%). FANS enhances FURL efficacy for 2-4 cm renal stones under local anesthesia, provides an alternative to percutaneous nephrolithotomy (PCNL) for select patients.

Indexed as

Anesthesia, LocalKidney CalculiLithotripsyUreteroscopesUreteroscopyAdultAgedFemaleHumansMaleMiddle AgedPostoperative ComplicationsRetrospective StudiesTreatment OutcomeFlexible and navigable suction ureteral access sheathFlexible ureteroscopeKidney stoneLocal anesthesia

Identifiers

PMID41428095

DOI10.1007/s00240-025-01907-w

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