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Chinese Journal of Endourology(Electronic Edition) ›› 2019, Vol. 13 ›› Issue (05): 304-308. doi: 10.3877/cma.j.issn.1674-3253.2019.05.005

Special Issue:

• Clinical Research • Previous Articles     Next Articles

Preoperative evaluation value of S.T.O.N.E nephrolithometry scoring system for percutaneous nepherolithomy

Bakhtiyor Sadykov1, Tusong Hamulati2, Xianmuxiding Waresi2, Jun Ma2, Abula Asimujiang2, Maola Naibijiang2, Yujie Wang2,()   

  1. 1. International Education College of Xinjiang Medical Univerisity, Urumqi 830011, China
    2. Department of Urology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
  • Received:2018-10-11 Online:2019-10-01 Published:2019-10-01
  • Contact: Yujie Wang
  • About author:
    Corresponding: Wang Yujie, Email:

Abstract:

Objective

To investigate the relationship between S.T.O.N.E. nephrolithometry scoring system with stone clearance rate and postoperative complications, and to evaluate its ability to predict postoperative stone clearance rate and complications after percutaneous nephrolithotomy (PCNL).

Methods

The clinical data of 120 patients with renal calculus who underwent PCNL from July 2017 to December 2017 in our hospital were selected. The patient's general condition, stone characteristics, operation status and perioperative parameters were analyzed. Each patient was scored according to S.T.O.N.E nephrolithometry scoring system,the relationship between patient scores and stone clearance rate, postoperative complications, estimated blood loss, and postoperative hospital stay were analyzed.

Results

The overall stone clearance rate was 85.5% (102/120), the complication rate was 6.7% (8/120), and the average S.T.O.N.E. score was (7.6±1.1). The mean S.T.O.N.E. score of the stone free group and the stone residual group was (7.5±1.1) and (8.3±1.1), respectively. The difference between the S.T.O.N.E. scores of the two groups was statistically significant (Z=-2.426,P=0.015). The stone score were correlated with stone clearance rate(OR=2.740,P<0.05) and with operative time(r=0.419,P<0.05), but not correlated with postoperative complications(r=0.050,P>0.05), estimated blood loss(r=0.100,P>0.05), total hospital stay(r=0.065,P>0.05) and postoperative hospital stay(r=0.050,P>0.05).

Conclusions

The stone clearance rate after PCNL is correlated with S.T.O.N.E. score, however, there was no significant correlation between S.T.O.N.E. score with the incidence of postoperative complications.

Key words: Renal stone, Percutaneous nepherolithomy, S.T.O.N.E. nephrolithometry scoring system, Stone clearance rate, Complications

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