Comparison of vacuum-assisted flexible ureteroscopy and percutaneous nephrolithotomy for 2–3 cm upper tract stones: a real-world cohort study - Takeaways - MDSpire

Comparison of vacuum-assisted flexible ureteroscopy and percutaneous nephrolithotomy for 2–3 cm upper tract stones: a real-world cohort study

  • By

  • Xixiang Chen

  • Xin Huang

  • Xu Chen

  • Guo Liu

  • Liang Wang

  • May 20, 2026

  • 0 min

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  • 1

    The study compared flexible ureterorenoscopy with vacuum-assisted access to percutaneous nephrolithotomy for 2–3 cm upper urinary tract stones.

  • 2

    The FV-UAS group showed a higher immediate stone-free rate (92.75%) compared to PCNL (76.59%), though this finding is exploratory.

  • 3

    Operative time and length of hospital stay were significantly shorter for the FV-UAS group, indicating faster recovery.

  • 4

    The FV-UAS technique had a markedly lower overall complication rate (10.1% vs. 40.4%) compared to PCNL.

  • 5

    FV-UAS demonstrated comparable stone clearance and a favorable safety profile, making it a viable minimally invasive alternative.

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