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Single-center experience of micro-perc in the treatment of children with 1.0–2.0 cm sized kidney stones in the Galdakao-modified supine Valdivia position

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Abstract

Objective

We aimed to explore the applicability and safety of micro-percutaneous nephrolithotomy (micro-perc) in the treatment of children with kidney stones in the Galdakao-modified supine Valdivia (GMSV) position under the guidance of whole-course ultrasound.

Materials and methods

Patients were aged < 18 years in the GMSV position who underwent micro-perc for kidney stones under ultrasound guidance between August 2020 and May 2022 at our institution were reviewed retrospectively.

Results

A total of 23 patients, 15 males and 8 females, received micro-perc. The average stone size was 1.6 cm (range 1.1–2.0 cm). Among them, 12 patients had left kidney stones, 10 patients had right kidney stones, and 1 patient had bilateral kidney stones. The mean operative time was 55.3 min (range 35–86 min). The mean hospital stay was 2.9 days (range 2–4 days). The mean hemoglobin decrease was 1.7 g/L (range 0.9–3.2 g/L). A total of 17 patients had complete stone clearance at 48 h postoperatively. A total of 22 patients had complete stone clearance at 2 weeks postoperatively.

Conclusion

Our results demonstrate that micro-perc under ultrasound guidance is a safe and effective method for the treatment of children with kidney stones in the GMSV position. Further research is warranted to confirm these results.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Funding

No specific grant was received by this study from any commercial or not-for-profit sectors, public funding agency.

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Author notes

  1. Zi-hao Xu and Geng-yu Du have contributed equally to this work.

Authors and Affiliations

  1. Department of Urology, Pediatric Urolith Center, National Clinical Research Center for Child Health, The Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang Province, China

    Zi-hao Xu, Geng-yu Du, Yi-jun Zhao, Heng-you Wang, Guang-jie Chen, Chang Tao & Xiang Yan

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  1. Zi-hao Xu
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  2. Geng-yu Du
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  3. Yi-jun Zhao
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  4. Heng-you Wang
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  5. Guang-jie Chen
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  6. Chang Tao
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  7. Xiang Yan
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Contributions

XY: project development. GJC, CT, YJZ and HYW: data collection and ZHX and GYD: data analysis and manuscript writing.

Corresponding author

Correspondence to Xiang Yan.

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The authors declare that they have no competing financial interests.

Compliance with ethical standards

All procedures conducted in studies with participants involved complied with the 1964 Helsinki declaration and its later amendments and comparable ethical standards, and with the ethical standards of the Children's Hospital of Zhejiang University School of Medicine.

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All individual participants gave informed consent.

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Xu, Zh., Du, Gy., Zhao, Yj. et al. Single-center experience of micro-perc in the treatment of children with 1.0–2.0 cm sized kidney stones in the Galdakao-modified supine Valdivia position. World J Urol 41, 837–841 (2023). https://doi.org/10.1007/s00345-023-04289-z

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  • DOI: https://doi.org/10.1007/s00345-023-04289-z

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