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目的:探讨梯形式升降电压法在体外冲击波碎石中的碎石效果。方法对47例泌尿系结石患者在行体外冲击波碎石治疗时运用梯形式升降电压三步法进行碎石治疗。结果本组患者体外冲击波碎石治疗显效率为72.3%,总有效率为87.2%。结论在体外冲击波碎石术中应用梯形式升降电压法碎石效果显著,可促进结石排出。“,”Objective To explore the lithotriptic effect of ladder lifting voltage method in extracorporeal shock wave lithotripsy (ESWL ) . Methods ESWLs were conducted using three‐step ladder lifting voltage method in 47 urinary stone patients .Results Obvious and total effective rate of the patients were respective‐ly 72 .3% and 87 .2% .Conclusion Ladder lifting voltage method in ESWL has an evident lithotriptic effect and could promote lithecbole .