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Treatment for residual stones using flexible ureteroscopy and holmium laser lithotripsy after the management of complex calculi with single-tract percutaneous nephrolithotomy

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Abstract

This study validated the effectiveness and safety of the treatment for residual stones using flexible ureteroscopy (fURS) and holmium laser (0.6–1.2 J, 20–30 Hz) lithotripsy via a fiber with a 200-μm core diameter and 0.22 numerical aperture (NA) after the management of complex calculi with single-tract percutaneous nephrolithotomy (PCNL). Between January 2014 and June 2016, 27 consecutive patients with complex calculi underwent fURS and holmium laser lithotripsy after a planned single-tract PCNL. Among the 27 patients with complex calculi, 9 had full staghorn calculi, 7 had partial staghorn calculi, and 11 had multiple calculi. After the first single-tract PCNL session, the mean stone size and mean stone surface area were 18.0 ± 10.7 mm and 181.9 ± 172.2 mm2, respectively. Treatment for residual stones with fURS and holmium laser lithotripsy was successfully completed and was performed without intraoperative complications. The mean operative time of the fURS procedure was 69.1 ± 23.6 min, and the mean hospital stay was 5.3 ± 2.4 days. The mean decrease in the hemoglobin level was 7.3 ± 6.5 g/l. After the fURS procedure, the overall stone-free rate was 88.9%. The overall postoperative complication rate was 14.8% (Clavien grade I 11.1%; Clavien grade II 3.7%). The current approach tested here combines the advantages of both PCNL and fURS and effectively manages complex calculi with a high stone-free rate (SFR) (88.9%). This approach also reduced the number of treatment sessions, the number of percutaneous access tracts, and the blood loss and potential morbidity associated with multiple tracts.

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    Authors and Affiliations

    1. Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No.100, Haining Road, Hongkou District, Shanghai, 200080, China

      L. Chen, D. Li, J. Zhuo, C.-Y. Jiang, Y.-P. Zhu, S.-J. Xia, J. Lu & Y. Shao

    2. Department of Geriatric, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China

      M.-L. Sha

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    1. L. Chen
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    2. M.-L. Sha
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    3. D. Li
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    4. J. Zhuo
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    5. C.-Y. Jiang
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    6. Y.-P. Zhu
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    7. S.-J. Xia
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    8. J. Lu
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    Correspondence to J. Lu or Y. Shao.

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    L. Chen and M.-L. Sha contributed equally to this work.

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    Chen, L., Sha, ML., Li, D. et al. Treatment for residual stones using flexible ureteroscopy and holmium laser lithotripsy after the management of complex calculi with single-tract percutaneous nephrolithotomy. Lasers Med Sci 32, 649–654 (2017). https://doi.org/10.1007/s10103-017-2162-5

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    • DOI: https://doi.org/10.1007/s10103-017-2162-5

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