目的探讨术中输尿管镜及B超在肾铸状结石治疗中的价值。方法采用术中输尿管镜直视下气压弹道碎石,B超协同检查判断和定位残余结石,并在输尿管镜及B超指示下取出残石。结果结石碎成小块容易取出,成功率92·5%(37/40);并发症发生率7·5%(3/40),主要是出血及结石残留。结论此方法安全,损伤小、能有效降低肾铸状结石手术的残石率。 Objective To investigate the value of intraoperative ureteroscopy and B-ultrasound in the treatment of renal cast stone. Methods Intraoperative ureteroscopic pneumatic lithotripsy, B-ultrasound to determine and locate the residual stones, and under the direction of ureteroscopy and B-removed residual stone. Results The stones were easily disassembled into small pieces, with a success rate of 92.5% (37/40). The complication rate was 7.5% (3/40), mainly bleeding and residual stones. Conclusion This method is safe, less damaging, and can effectively reduce the residual stone rate in renal cast stone surgery.