Stone-free rate and stone size of holmium-YAG laser ureteroscopic lithotripsy.

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  • TULの治療成績と結石長径の検討
  • TUL ノ チリョウ セイセキ ト ケッセキ チョウケイ ノ ケントウ

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<p>  We retrospectively evaluated the indication of transurethral lithotripsy (TUL). Between April 2008 and October 2017, 918 patients underwent TUL. The median age was 62 years, and median size of stone was 1.1 cm. The median number of procedures was 1, median operative time was 60 minutes, and stone-free rate was 97.7%. The complications were pyelonephritis (7.6%), sepsis (1.2%), minor injury (3.7%), major injury (0.2%), and stenosis (0.2%). In the group with stones larger than 3.0 cm, the stone-free rate was 85.5% (p<0.0001). In the group with stones larger than 2.0 cm, the pyelonephritis rate was 13.8% (p=0.0010). The predictive risk factors for pyelonephritis at TUL were female (p<0.0001), previous pyelonephritis (p<0.0001), previous diabetes mellitus (p=0.0017), and stones larger than 2.0 cm (p=0.0054). Our study suggests that TUL is a good indication for stones less than 2.0 cm and a reasonable option for stones less than 3.0 cm.</p>

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