URETERAL STONE - TREATMENT USING THE MODU LITH-SL-20 AND LITHOSTAR-PLUS

The treatment of ureteric calculi by extra-corporeal shock waves was f ound to have an 80 % success rate by Mannheim authors, regardless of t he site of the calculus. The authors compared two 3rd generation appar atuses : 1 - the Siemens Lithostar Plus, in which waves are produced b y an electromagnetic cylinder and focussed by a parabolic electromagne tic cylinder and focussed by a parabolic reflector: 2 - the Storz Medi cal Modulith SL 10, in which waves produced by an electromagnetic coil are focussed by acoustic lenses. Both apparatuses are based upon imag e-intensification and ultrasonography concepts. No difference in effic acy was found between the two apparatuses. A second shock wave session was necessary in 16 % of cases and some other type of additional trea tment in 7 % of cases.