[Percutaneous antegrade treatment of calculi located in the upper ureter using a flexible uretero-renoscope].

In selected cases of upper ureteric stones, especially in the impacted ureteric stone, when first line treatment with ESWL has failed, an antegrade flexible uretero-renoscopic treatment may offer a good alternative. Treatment results are presented in 9 patients with 10 upper ureteric stones. During 10 procedures the antegrade flexible uretero-renoscopic technique proved to be a reliable method when using grasping methods, electrohydraulic disintegration or a combination of both techniques, with no failures encountered. IVU at 3 months was unremarkable in all patients.