[Outcome of patients in metastatic renal cell carcinoma with or without embolization]

Nineteen cases of metastatic renal cell carcinoma were embolized (embolization group) and 18 cases were not (non-embolization group). The median survival time after nephrectomy for the 14 cases in the embolization group, 23 months, was more favorable than the 11 months obtained for the 13 cases in the non-embolization group. In the case of one organ metastasis, the median survival time was 33 months for 9 cases in the embolization group and 11 months for 10 cases in the non-embolization group, with a remarkable difference in survival time between the two groups. Therefore, the survival rate can be improved by performing nephrectomy after embolization in the case of single organ metastasis. On the other hand, in the case of multiple organ metastasis prolongation of survival time cannot be expected even when embolization is performed with or without nephrectomy.