Combined Gold Seed Implantation and External Radiotherapy for Stage B2 or C Prostate Cancer

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Abstract
Patients with clinical stage B2 or C prostatic carcinoma represent a group for which there are several treatment options. We followed the course and outcome of 72 patients with clinical stages B and C prostate cancer who were treated with surgical staging, insertion of gold grains and external radiation at our institutions between 1975 and 1984. Of the patients 44 (61 per cent) had clinical stage B disease and the majority (89 per cent) of these were stage B2 lesions. The remaining 28 patients (39 per cent) had clinical stage C tumors. In our series 27 per cent of the clinical stage B and 68 per cent of the clinical stage C cancer patients had positive lymph nodes. The 5-year survival free of disease was 52 per cent for patients with both stages of disease. The 7-year survival free of disease was 52 per cent for patients with clinical stage B and 14 per cent for those with clinical stage C cancer. Lymph node status did not have a statistically significant effect on total survival but survival free of disease correlated significantly with node status. Local treatment failures were defined as patients who required transurethral prostatic resection or orchiectomy for palliation of obstructive symptoms related to local tumor regrowth. By these criteria we prevented local progression in 78 per cent of the patients at 5 years.