Extracorporeal shock wave lithotripsy with the Lithostar lithotriptor.
Early experience of extracorporeal shock wave lithotripsy (ESWL) using the Lithostar lithotriptor is reported; 145 patients underwent 185 treatments for 189 stones. Treatments were performed with either intravenous sedation and analgesia (90%) or general anaesthesia (10%). There were 123 renal calculi, 44 ureteric calculi and 22 staghorn calculi. Stone fragmentation was achieved with 1724 +/- 1035 shocks at 19 kv. The immediate stone fragmentation rate was 90% and the 3-month clearance rate 88%. Secondary treatments were required in 19% of patients and additional procedures in 17%. A comparison between stone size and the number of shock waves required to achieve stone fragmentation revealed a linear relationship. The Lithostar is a very effective second generation lithotriptor which can be used for renal, staghorn and ureteric calculi in situ, without manipulation.
Department of Urology, University College Dublin, Mater Misericordiae Hospital, Ireland.
P A
PA
Grace
P
P
Gillen
J M
JM
Smith
J M
JM
Fitzpatrick
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000628:therapy; D008096:Lithotripsy / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D014514:Ureteral Calculi / Q000628:therapy