Induction chemotherapy followed by reduced-volume radiation therapy for newly diagnosed central nervous system germinoma

Journal of Neurosurgery
Yutaka SawamuraKenji Fujieda

Abstract

Although curative, radiation, which is conventionally administered for germinomas, causes significant neurological sequelae. This study aimed at reducing the volume and dose of radiation to a localized level of 24 Gy by pretreating the patient with chemotherapy. Seventeen patients were divided into two risk groups based on serological findings and the extent of tumor. They were treated with chemotherapy prior to receiving localized radiation therapy. Six patients with solitary pure germinomas were treated with three or four cycles of cisplatin and etoposide (EP regimen) followed by 24-Gy local radiation therapy. Eleven patients with human chorionic gonadotropin (HCG)-secreting, multifocal, or disseminated germinomas received four to five cycles of ifosfamide, cisplatin, and etoposide (ICE regimen) followed by 24-Gy local radiation therapy. Craniospinal ports were used only in three cases of germinomas with dissemination. Gross-total resection was performed in three patients. Fourteen patients were able to be evaluated for their responses to chemotherapy. All patients achieved a complete response within three cycles. At a median follow-up duration of 24 months, 16 patients (94%) were alive without recurrence. One patient with an...Continue Reading

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Methods Mentioned

BETA
biopsy
surgical resection
ICE

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