悪性脳腫瘍に対するbleomycin,ACNU,vincristine併用照射療法 : 腫瘍縮小効果について

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Radiotherapy combined with bleomycin, ACNU, and vincristine was performed on 106 patients with malignant brain tumors. The treatment protocol was based on the concept of combination chemotherapy or chemoradiotherapy and synchronized chemoradiotherapy. For the purpose of syn-chronized chemoradiotherapy, bleomycin, ACNU, and vincristine were used as G_2M cell cycle phase accumulator, and radiation and bleomycin were used as agents to which G_2M or G_2 phase cells are sensitive. The short-term results of the chemoradiotherapy were evaluated by measuring tumor regression by computerized tomography (CT) in 80 patients with evaluable CT lesions. The response rate (complete response+partial response) was 67% (6/9) for astrocytoma, 29% (7/24) for anaplastic glioma, 67% (4/6) for pontine glioma, 100% (5/5) for malignant lymphoma, 100% (8/8) for germ cell tumors and 65% (15/23) for metastatic tumors. A control study was performed using radiation alone on another 18 patients with metastatic tumors, and the response rate was 50% (9/18). Among the 106 patients treated with chemoradiotherapy, the major side effects observed were as follows: leucopenia in 33 patients (31%), thrombocytopenia in 14 (13%), paralytic ileus in 2 (2%), peripheral neuropathy in 2 (2%), and lung fibrosis in 1 (1%). Contrary to expectation, low-grade astrocytomas responded much better to the chemoradiotherapy than high-grade astrocytomas. Chemoradiotherapy seems to be more effective in causing regression of malignant brain tumors than radiation alone, but further studies on the long-term results of this treatment are necessary.
日本脳神経外科学会の論文
1984-08-15

悪性脳腫瘍に対するbleomycin,ACNU,vincristine併用照射療法 : 腫瘍縮小効果について

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