PMID: 8598367Mar 1, 1996Paper

Hypofractionated radiation therapy in patients with glioblastoma multiforme: results of treatment and impact of prognostic factors

International Journal of Radiation Oncology, Biology, Physics
B J SlotmanA B Karim

Abstract

Median survival of patients with glioblastoma multiforme (GBM) is only about 4 months with surgery and about 9 months for surgery followed by radiotherapy. Prolonged treatment is futile for many patients and the time of treatment and hospitalization should be minimized. This was a prospective, nonrandomized study of 30 patients treated with a hypofractionated radiation scheme (42 Gy in 14 fractions). Median survival was 36 weeks. Age, Karnofsky performance status (KPS) and extent of surgery were strongly interrelated and all correlated with survival (p < 0.05). Three prognostic groups were identified. Patients with three favorable prognostic factors (age <50, KPS 80-100, and > or = 75% of the tumor removed) had the best prognosis (median survival 50 weeks). Patients with no favorable prognostic factors (age > or = 50, KPS < or = 70, and < 75% of the tumor removed) had the worst prognosis (median survival 25 weeks). Median survival of the intermediate group (with one or two favorable prognostic factors) was 38 weeks. No severe acute or late toxicity was observed. The treatment results are comparable to those achieved with conventional radiotherapy schemes. Based on the number of favorable prognostic factors (age < 50, KPS 80-100...Continue Reading

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