TRAITEMENT DES CALCULS URINAIRES PAR LITHOTRITIE EXTRA-CORPORELLE

Abstract

Introduction : Until the begining of the eigthies, the surgery was the only way to extract calculi localised in the kidney or the ureter. The extra-corporeal lithotripsy, who allow fragmentation of calculi by schock waves, was the most important discover. Nowadays it is the most useful method for the treatement of calculi. This field knows an important development with the appearance of new machines more and more performant. The objective of this study is to evaluate the clinical results after one year’s experience with a new generation lithotriptor : the lithostar multiline tm (siemens). Materiels and methods : The authors treated 147 patients ages between the ages of 8 and 73 years, presenting with renal stones in 67,23% of cases, ureteral stones in 31,07% of cases and bladder stones in 1,69% in cases .The mean stone diameter was 14mm (3-34mm). An average of 3846 (range 1500-6000) shock waves were applied with a mean energy level of 4,29 (range : 1,5 -7) Results : The succes rate was 62% for the renal stones, 82% for lumbar ureter and 60,7% for the pelvic stones. The morbidity was low (10% of renal colic, 5% of obstructive stone and 1,4% of pyelonephritis). Conclusion : The (siemens) multiline tm lithostar is a new generation lithotriptor, efficient and with a low morbidity. These data indicates the limits of the efficacy nature of a modern lithotriptor for the pelvic stones.