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  • Title: [Second-look operations and chemotherapy for malignant tumors of the brain].
    Author: Yamamoto H, Iwasa H, Satoh F, Matsutani M, Kohno T, Takakura K.
    Journal: Gan No Rinsho; 1983 Aug; 29(10):1253-62. PubMed ID: 6579317.
    Abstract:
    Second-look operations for glioblastomas, one of the most malignant types of brain tumor, were performed after the administration of chemotherapeutic treatments of general-VM 26 plus ACNU, local-MTX, or interferon-beta in each of ten, two, and three cases, respectively. Patients who had received the treatments were divided into two groups, living and deceased, as of August 1982. Therapeutic evaluation was performed with clinical parameters. Among the cases of CR, one (a 14-year-old female) had undergone surgery four times in the four years following onset, and no trace of tumor shadow appeared on the CT grams that were taken one month after the last surgery. Her performance was evaluated as almost 100% (ECOG). In cases of local administration, one case, which had been treated with IFN-beta, demonstrated an apparent decrease in the growth fraction and a pronounced decrease in tumor progression potency. Cell kinetic analyses were also performed, and cell cycle time and growth fraction were estimated by computer with the aid of flow cytometry. Efficacious chemotherapy yielded a decreased value of the growth fraction and an increase in cell cycle time. The decreased value of the growth fraction demonstrates especially well the effectiveness of a chemotherapeutic regimen. The cell kinetic analyses aided in the rational establishment of a chemotherapeutic regimen. Second-look operations for malignant brain tumors will enable more effective refinements in chemotherapeutic regimens and more successful results.
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