[Therapeutic or palliative embolization aimed at analgesia for bone metastases of renal origin].

In addition to the chemotherapy, surgery and physical treatments usually employed in the treatment of bony secondaries from renal tumours, the authors propose embolization. They have performed this procedure in 4 patients, using a mixture of isobutyl-2-cyanoacrylate and lipiodol. Arteriography is performed before and after the embolization which is carried out under local anaesthesia. Disappearance or relief of pain was obtained in each case. This technique in no way changes the prognosis of the disease, but it can improve the quality of life of these patients. A review of the literature reveals that metastases other than renal have already been embolized, as have primary malignant bone tumours. The authors describe their method, the incidents associated with treatment, the contra-indications and the supposed mechanism of the analgesic action of embolization.