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Prognostic factors for deep situated malignant gliomas treated with linac radiosurgery / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal ; (4): 105-110, 2004.
Artículo en Inglés | WPRIM | ID: wpr-254014
ABSTRACT
<p><b>OBJECTIVE</b>To study the function of radiosurgery on malignant glioma by analyzing prognostic factors affecting malignant gliomas treated with linac radiosurgery.</p><p><b>METHOD</b>Fifty-eight patients with deep situated malignant gliomas, aged 7 to 70 years, 28 anaplastic astrocytomas and 30 glioblastomas multiforme were analyzed. The median volume of tumor was 10.67 cm3, and median prescription dose for linac radiosurgery was 20 Gy. Results were analyzed with Kaplan-Meier curve and Cox regression.</p><p><b>RESULT</b>In follow-up 44.8 percent tumors (26 patients) decreased in size. Median tumor local control interval was 10 months, 15 months for anaplastic astrocytomas, and 9 months for glioblastoma multiforme. Tumor local control probability was 37.9 percent for 1 year and 10.3 percent for 2 years. Median survival was 22.5 months for anaplastic astrocytoma, 13 months for glioblastoma multiforme, and 15 months for all patients. The survival probability was 79.3 percent at 1 year and 20.6 percent at 2 years. Isocenter numbers and tumor volume were the prognostic factors for tumor control, but conformity index was the prognostic factor for survival by Cox regression analysis. Considering pathology, only isocenter number and target volume significantly affected tumor control interval. Complications appeared in 44.8 percent patients and the median interval of complication onset was 8 months. Symptomatic cerebral edema was observed in 31.0 percent patients.</p><p><b>CONCLUSION</b>Linac radiosurgery can effectively improve tumor local control and prolong survival for deep situated malignant gliomas.</p>
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Patología / Pronóstico / Astrocitoma / Cirugía General / Neoplasias Encefálicas / Tasa de Supervivencia / Estudios de Seguimiento / Mortalidad / Radiocirugia / Glioblastoma Tipo de estudio: Estudio observacional / Estudio pronóstico Límite: Adolescente / Adulto / Anciano / Niño / Femenino / Humanos / Masculino Idioma: Inglés Revista: Chinese Medical Sciences Journal Año: 2004 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Patología / Pronóstico / Astrocitoma / Cirugía General / Neoplasias Encefálicas / Tasa de Supervivencia / Estudios de Seguimiento / Mortalidad / Radiocirugia / Glioblastoma Tipo de estudio: Estudio observacional / Estudio pronóstico Límite: Adolescente / Adulto / Anciano / Niño / Femenino / Humanos / Masculino Idioma: Inglés Revista: Chinese Medical Sciences Journal Año: 2004 Tipo del documento: Artículo