[The lithotripsy therapy center "Citta di Brescia". Our experiences with the first 400 treatments].

From September 1988 to April 1989, 400 patients with stones in the calyx (40%), in the renal pelvis (45%), in the ureter (15%) and with staghorn calculi (5%) underwent shock wave treatment. In the majority of patients therapy was carried out with general anesthesia. Disintegration was achieves in 95% of stones in the kidney and 44% of stones localized in the ureter following "in situ" ESWL. The ureteroscopy and stone push-up with replacement into the renal ampulla was performed in 56% of ureteral calculi. The average number of impulses to achieve disintegration was 1850. In 20 patients were necessary 4000 SW; we studied this patients with echography, TAC and RMN 48 hours after the treatment. The objective of this trial is the assessment of the efficacy and cost benefit relation of lithotripter TRIPTER X1.