Journal of Shandong University (Health Sciences) ›› 2022, Vol. 60 ›› Issue (6): 57-63.doi: 10.6040/j.issn.1671-7554.0.2022.0034

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Application value of modified S.T.O.N.E score in predicting the stone-free rate of one-stage renal FURL

SU Wengui1, XU Hailong2, YANG Meng3, CUI Wei3, NIE Qingsheng3   

  1. 1.Clinical College of Weifang Medical University, Weifang 261053, Shandong, China;
    2. Department of Urology, Peking University Medical Zibo Hospital, Zibo 255051, Shandong, China;
    3. Department of Urology, Zibo Central Hospital, Zibo 255036, Shandong, China
  • Published:2022-06-17

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Abstract: Objective To explore the modified S.T.O.N.E scoring system in predicting the stone-free rate(SFR)of one-stage renal flexible ureteroscopic lithotripsy(FURL). Methods The clinical data of 93 cases undergoing FURL during Jan. 2018 and Aug. 2021 were retrospectively analyzed. According to the modified S.T.O.N.E score, the affected kidneys were divided into simple group(5-7 points, n=31), intermediate group(8-11 points, n=52)and complex group(12-17 points, n=10), and the 1-month SFR after surgery among the three groups were compared. The receiver operating characteristic(ROC)curve of the modified S.T.O.N.E, SHA.LIN, S.T.O.N.E and RUSS scores were plotted to compare the differences in the area under the ROC curve(AUC). Results The intraoperative and 1-month SFR were 74.19% and 80.65%, respectively(P=0.0412). The modified S.T.O.N.E score showed the intraoperative SFR in the simple, intermediate and complex group were 96.77%, 69.23% and 30.00%, respectively; the 1-month SFR were 96.77%, 80.77% and 30.00%, respectively. There were significant differences in the intraoperative and postoperative SFR in the intermediate group(P=0.041 2), while there was no difference between the simple and complex groups(P>0.05). Compared with the SHA.LIN and S.T.O.N.E scores, the modified S.T.O.N.E score showed no difference in AUC for predicting intraoperative SFR(all P>0.05); but there was difference compared with the RUSS score(P=0.007 2). There was no significant difference in the AUC among the modified S.T.O.N.E score, SHA.LIN, S.T.O.N.E and RUSS score in predicting 1-month SFR(all P>0.05). Conclusion Among the four renal stone scoring systems, the modified S.T.O.N.E score has the highest accuracy in predicting SFR during one-stage renal FURL and 1-month SFR after surgery, and it is worthy of clinical promotion.

Key words: Flexible ureteroscopic lithotripsy, Kidney stones, Modified S.T.O.N.E score, Stone-free rate

CLC Number: 

  • R692.4
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[1] JIANG Li-cheng1,2, XU Zhong-hua1, ZHANG Ying-chen2, WANG Xue-ting2, DING Ji-yang2, CHENG Yu-feng2. Unenhanced spiral CT localization combined with C-arm in minimally invasive
percutaneous nephrolithotomy(MPCNL) for complex renal calculi [J]. JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES), 2012, 50(3): 71-.
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