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[Extracorporeal shock wave lithotripsy for renal calculi]
1Department of Urology, Xiangya Hospital, Hunan Medical University, Changsha 410008.
Objective:
The aim of the study was to determine the effectiveness of extracorporeal shock wave lithotripsy(ESWL) therapy for renal calculi.
Methods:
126 patients were treated with Shanghai HX-902 lithotriptor on an inpatient basis. The stone size varied from 0.5 to 2.5 cm. Some patients had a double-J stent inserted prior to treatment.
Results:
The overall stone-free rate in 2 months was 45.6%, whereas it was 53.3%, 40.8% and 18.1% according to the stone size, < or = 0.8, 0.9-1.9 and > or = 2 cm, respectively. Complications were rare, including 1 subcapsular hematoma formation, 15 renal colics and 5 stone streets, which were managed by conservative treatment or ureteral stenting or additional ESWL and resulted in complete stone clearance.
Conclusion:
ESWL therapy is a reasonable and effective method for renal stone, percutaneous nephrolithotripsy(PCNL) or open surgery should be considered for stones larger than 2 cm.