Apr 1, 1991

Hyperfractionated irradiation for adults with brainstem gliomas

International Journal of Radiation Oncology, Biology, Physics
D E LinstadtW M Wara

Abstract

Hyperfractionated irradiation appears to have improved survival for pediatric patients with brainstem gliomas. However, the efficacy and safety of this technique are less well established for adults with brainstem tumors. In 1984 the UCSF Department of Radiation Oncology began treating adults with brainstem gliomas using 100 cGy fractions given twice daily to total doses ranging between 6600-7800 cGy (median dose 7200 cGy). By the end of 1989, a total of 14 patients had been irradiated with follow-up times for surviving patients ranging between 4-69 months (median follow-up 33 months). Tumor histologies included five moderately anaplastic astrocytomas, one highly anaplastic astrocytoma, and eight which were unbiopsied. At the time of this analysis, six patients had failed locally, with five dying as a result of recurrent tumor. There were no deaths caused by complications or intercurrent illness. The 3-year actuarial survival rate was 59%, with a corresponding 3-year actuarial local control rate of 48%. The projected median survival was in excess of 5 years, whereas the actuarial median time to progression was 31 months (134 weeks). The treatments were well tolerated: the mean pretreatment Karnofsky Performance Status was 74% (...Continue Reading

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Citations

Mentioned in this Paper

Necrosis
Diagnostic Service Sources Radiology Labs Radiation Oncology
Entire Brainstem
Anaplastic Astrocytoma
Recurrent Tumor
Radiotherapy, Targeted
Etiology
Mixed Gliomas
Histology
Radiotherapeutic

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