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Comparison of super-mini-PCNL and flexible ureteroscopy for the management of upper urinary tract calculus (1–2 cm) in children

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A Letter to the Editor to this article was published on 08 April 2021

A Letter to the Editor to this article was published on 06 April 2020

Abstract

Objectives

To retrospectively evaluate the efficacy and safety of super-mini percutaneous nephrolithotomy (SMP) and retrograde intrarenal surgery (RIRS) for children with upper urinary tract calculus (1–2 cm).

Patients and methods

Children with upper urinary tract calculus (1–2 cm) who underwent the SMP or RIRS were enrolled in this study. Patients were divided into two groups: group SMP, 36 patients; and group RIRS, 25 patients. Patients were evaluated with KUB radiography or CT after 1 month. The collected data were analyzed.

Results

The mean stone size was 14.18 mm in group SMP, and 14.00 mm in group RIRS (p = 0.812). Group RIRS compared to group SMP showed longer operating time [76.3 vs 53.9 min (p = 0.002)], and postoperative hospital stay [4.2 vs 2.9 days (p = 0.011)]. The overall stone-free rate (SFR) was 94.4% for group SMP, and 60.0% for group RIRS in 1 month after operation (p = 0.001). The re-treatment rate was significantly higher in group RIRS compared to group SMP [20.0% vs 0.0% (p = 0.009)]. The complication rate was 5.6%, and 24.0% for groups SMP, and RIRS, respectively (p = 0.036).

Conclusions

SMP was more effective than RIRS to obtain a better SFR, less re-treatment rate, and complication rate in children with upper urinary tract calculus (1–2 cm).

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Funding

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

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Author notes

  1. Hongliang Jia and Jiuzhi Li contributed equally to this work.

Authors and Affiliations

  1. Department of Urology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, 830001, China

    Hongliang Jia, Jiuzhi Li, Bide Liu, Peixin Zhang, Ainiwaer Yusufu, Yukui Nan, Xun Li, Bin Wen, Chunlin Pu, Weili Du & Shuheng Wang

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  1. Hongliang Jia
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  2. Jiuzhi Li
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  3. Bide Liu
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  6. Yukui Nan
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  7. Xun Li
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  8. Bin Wen
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  9. Chunlin Pu
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  11. Shuheng Wang
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Contributions

JL, BW: project development. BL, PZ, WD, XL, CP: data collection or management. YN, SW: data analysis. HJ: manuscript writing. AY manuscript editing.

Corresponding author

Correspondence to Jiuzhi Li.

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were obtained from the institutional Ethics committee of People’s Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, China.

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Jia, H., Li, J., Liu, B. et al. Comparison of super-mini-PCNL and flexible ureteroscopy for the management of upper urinary tract calculus (1–2 cm) in children. World J Urol 39, 195–200 (2021). https://doi.org/10.1007/s00345-020-03150-x

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  • DOI: https://doi.org/10.1007/s00345-020-03150-x

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