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Postoperative irradiation in localized renal cell carcinoma: the Rambam Medical Center experience
Eliahu Gez1, Michael Libes, Raquel Bar-Deroma
1Department of Oncology, Rambam Medical Center and Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. e_gez@rambam.health.gov.il
Objective:
This study evaluated the results of postoperative adjuvant radiotherapy in patients with localized renal cell carcinoma (RCC).
Patients:
Eighty-six patients (median age, 60 years) with RCC treated by radical nephrectomy were evaluated for the efficacy of postoperative radiotherapy. Twenty-four percent of patients had stage T2, 35% T3a, 36% T3b and 5% T4 disease. Seventy-seven percent had clear cell carcinomas and 23% granular cell or spindle and mixed cell carcinomas. Radiotherapy was given to the renal bed and adjacent lymphatic basin at a median dose of 46 Gy.
Results:
Thirty-two (37%) patients relapsed: 27 (84%) had systemic relapse only and five (16%) had local and systemic relapse; all patients of the latter group had stage T3b disease. The 10-year disease-free and overall survival was 40% and 42%, respectively. Tumor invasion of the renal vessels and stage of disease were correlated with survival. Side effects of radiotherapy were mainly gastrointestinal, but one patient who received right abdominal irradiation died because of liver failure.
Conclusion:
The results of our study are comparable with those reported in the literature. Since postoperative irradiation did not improve the survival of patients with RCC and showed toxicity, it is not recommended.
