Treatment of complicated renal calculi under percutaneous nephrolithotomy with ultrasonic and pneumatic lithotripter

Objective: To evaluate the methods and efficacy of percutaneous nephrolithotomy with ultrasonic and pneumatic lithotripter (EMS Ⅲ) in the treating of renal calculi. Methods: 45 patients,52 renal units with complicated renal calculi received percutaneous nephrolithotomy preformed by ultrasonic and pneumatic lithotripter. Results: 80.8% stone-free rate was achieved using one-stage minimally invasive percutaneous nephrolithotomy. Average operative time was 82 minutes. Neither the pneumothorax nor the bowel hurts complications were noted in the patients. Conclusion: Invasive percutaneous nephrolithotomy is safe and effective in the treatment of major renal calculi. High stone free rate,less invasion easy recovery and shot hospitalization stay are its merits. It also has advantages of treating the patients with residual calculi.