Experience of treatment of 200 cases of upper urinary tract calculi in with min-PCNL

Objective To evaluate the clinical efficacy and safety of minimally invasive percutaneous nephrolithotomy(min-PCNL) with C-arm X-ray machine guidance in the treatment of upper urinary tract calculi.Methods The clinical data of 200 cases of renal and upper ureteral caculi treated by mPCNLfrom March 2010 to December 2013 was analyzed retrospectively. Of all cases, staghorn calculi or partial staghorn calculi, renal multiple calculi, bilateral renal calculi, calyceal calculi, pelvis calculi, renal calculi accompanied by pyonephrosis, solitary renal calculi, with contralateral renal atrophy, renal calculi accompanied by upper calyceal diverticulum calculi and upper ureteral calculi was 58, 38, 10, 12, 40, 5, 5, 8, 1, 23, respectively. Diameter of calculi was 0.6 cm to 4.7 cm. Results All operations were finished successfully. Stone removal by single-channel in 178 cases and double-channel in 22 cases respectively,.Among the cases,one-stage min-PCNL was performed in 186 cases, two-stage in 12 and auxiliary ESWL in 2.The operative time was 30~195 minutes, average operative time was(90±36) minutes, stone free rate in upper ureteral calculi、calyceal calculi and bilateral renal calculi was 100%, in pelvis calculi、staghorn calculi、renal multiple calculi、solitary renal calculi and with contralateral renal atrophy was 95%、92.8%、94.7%、80% and 87.5%, respectively. No serous complications occurred. Conclusion mim-PCNL is safe and effective and is a good option to treat upper urinary tact calculi. It has the advantages of less invasion, early recovery,better effect and higher safety.