Abstract

VEGA VEGA, A.; DE BLAS GOMEZ, V.; GUERREIRO GONZALEZ, R.  and  GALLO ROLANIA, F.J.. Single center experience with Siemens Lithostar Modularis for treatment of 1500 solitiary urinary stones. Actas Urol Esp [online]. 2008, vol.32, n.5, pp.546-551. ISSN 0210-4806.

Objectives: the aim of the study was to evaluate the results of extracorporeal shock wave lithotripsy (ESWL) treatment with Siemens Lithostar Modularis in urinary stones. Patients and Methods: from may 2000 until September 2006, 1500 patients, 62% men and 38% women, ages 15 to 89 years (mean age 53), underwent ESWL as treatment of urinary stones at the Lithotripsy Unit of León. Data were analized retrospectively. More than half (56%) had left urinary stones. The most frequent ureteral localization (55%) was proximal (420 patients), and the most frecuent renal was renal pelvis (345 patients). The mean stone diameter was 1.3 cm. (1.01 ureteral and 1.7 renal). All patients received ESWL-session under i.v. analgesia with alfentanil and midazolam. Results: Mean number of sessions per lithiasis was 1.5 (ureteral stones 1.4 and renal stones 1.7). The retreatment rate was 33%, 28% for ureteral stones and 39 % for renal stones with a cumulative success of 86% with two sessions. 22% of the patients required auxiliary manouvers, 24% of the patients with ureteral stones and 18 % of the renal stones patients. Stone free rate was 91%, 97% in ureteral stones and 82% in renal stones. Conclusions: treatment of urinary stones with Siemens Lithostar Modularis showed good results, with a stone free patient rate of more than 90%, although 33% of the patients need multiple ESWL treatment sessions and 20% of the patient required auxiliary procedures.

Keywords : Extracorporeal shockware lithotripsy; Renal calculi.

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