Abstract：Objective: To improve the ability of treat infectious staghorn calculi with micro-channel percutaneous pneumatic lithotripsy. Methods: From 2009 january to 2014 june,there were 73 patients (77 sides) with infectious staghorn calculi underwent micro-channel percutaneous pneumatic lithotripsyin our hospital. We analyze the clinical data of the 73 patients retrospectively ,count the operation time, decrease of Hb,transfusion rate,one-staged stone clearance rate,incidence of postoperative fever and complications. Results: Allpercutaneous renal accesses in 73 cases (77 sides) were successfully established and the one-staged percutaneous nephrolithotomy were performed. The operation time of the one-staged percutaneous nephrolithotomyranged from 51.7 to 212.0 min,average (102.3±42.2) min. The decrease of Hbranged from 9 to 47 g/L,average (17.3±5.4) g/L. 7.8%(6/77)operations received blood transfusion. The one-staged stone clearance rate was 74.0％(57/77) and the one-stagedclearance rate increased to 81.8% (63/77) after ESWL. Postoperative fever incidence was 10.4%(8/77). 1 patient received super selective renal artery embolization. 1 patient had uroseptic shock, no peripheral organ damage and no deaths. Conclusions: In condition that operation skills are fully mastered,the preoperative risk is controlled and the postoperative management is improved,its a safe and effective method to treat infectious staghorn calculi with micro-channel percutaneous nephrolithotomy pneumatic lithotripsy, It is worth recommending.
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