Abstract: Objective    To evaluate the safety and clinical efficacy of standard transcutaneous holmium laser lithotripsy combined with microchannel technique in the treatment of complicated renal calculi.Methods Retrospective analysis of 90 cases of complex kidney stones in patients with clinical data in our hospital with a standard channel joint microchannel(F22+ F16)percutaneous nephroscope holmium laser lithotrips,and the operation time,intraoperative blood loss,the first phase of stone clearance rates and complications such as indicators for analysis. Results  81 cases were treated with stage Ⅰ standard channel joint microchannel percutaneous nephroscope holmium laser combined with microchannel technology,intraoperative blood loss was(94.71±20.58)ml,the overall stone removal rate of stage Ⅰ  reached 91.11%,and the postoperative complications were 9 times in total,which were cured after treatment.(Only 1 case of delayed hemorrhages line interventional embolization).Conclusion Standard transcutaneous transcutaneous holmium laser lithotripsy combined with microchannel technology for complicated renal calculi has the advantages of high net stone rate and low complications,which can be used as a feasible,safe and effective surgical method for complicated renal calculi.
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