Abstract:

Objective To compare the efficacy and safety of minimally invasive percutaneous nephrosomy for complicated renal calculi between holimium laser  lithotripsy and ultrasonic lithotripsy.Methods 315 cases were analyzed including the average time of lithotripsy,the rate of  stone completely expelled and the rate of complications.
Results The average time of lithotripsy in ultrasound group(56 min)was lower than that in laser group(82 min) (P<0.01) ；the clearnce rate of  stone  at stage Ⅰ　operation  in ultrasound group(81.5%)was higher than that in laser group (65.5%) (P<0.01) ；the average hospitalization time in ultrasound group(6 d) was less than that in laser group(8 d) (P<0.05) ；the incidence of hemoglobin decrease in ultrasound group(5.0%) was lower than that in laser group(12.7%)(P<0.05).Conclusion Percutaneous nephrostomy with ultrasonic lithotripter for complicated renal calculi has the advautages of mini-invasion,less operative duration,radid recovery,safety and very effective and faster clearance compared with laser lithotripsy.

Key words: renal calculi;percutaneous nephrolithotomy;ultrasonic lithotripter;holmium lithotripter