| Objective:To compare the efficacy and safety of U100laser(the frequency-doubleddouble-pulse neodynium:YAG laser) and holmium:YAG laser for ureteral stones.Methods:From Feb.2003to Dec.2011,1133patients in our hospital underwent endoscopiclithotripsy either with the U100laser lithotripter (665cases) or with holmium:YAGlaser lithotripter (468cases) for the treatment of ureteral stones. Patients wereanalyzed for operation time, stone-free rate, stone up-migration, intraoperativecomplications.Result:respectively, for U100and holmium:YAG laser groups,overall successful rate ofstone fragmentation was91.4%and91.7%（P=0.804）, Stone up-migration was4.66%and6.41%（P=0.199）. Mucosal perforation/disruption rates was2.25%å'Œ2.99%（P=0.440）. ureterostenosis rates was0.15%and2.14%（P=0.002）. therewas no significant difference in mean stone fragmentation time（P=0.205）.Conclusion:U100laser has an advantage in reduced ureterostenosis than holmium:YAGlaser. Both are equally efficient in stone up-migration,operation time, stone-free rateand intraoperative complications. |
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