SAC - Sociedad Andaluza de Cancerología
 
SAC - Sociedad Andaluza de Cancerología
 
 

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Salvage Radiosurgery for Selected Patients with Recurrent Malignant Gliomas
05 de Mayo de 2014
PURPOSE:
To analyse the survival after salvage radiosurgery and to identify prognostic factors.
METHODS:
We retrospectively reviewed 87 consecutive patients, with recurrent high-grade glioma, that underwent stereotactic radiosurgery between 1997 and 2010. We evaluated the survival after initial diagnosis and after reirradiation. The prognostic factors were analysed by bivariate and multivariate Cox regression model.
RESULTS:
The median age was 48yearsold.The primary histology included anaplastic astrocytoma (47%) and glioblastoma (53%). A margin dose of 18Gy was administered in the majority of cases (74%).The median survival after initial diagnosis was 21 months (39 months for anaplastic astrocytoma and 18.5 months for glioblastoma) and after reirradiation it was 10 months (17months for anaplastic astrocytoma and 7.5 months for glioblastoma). In the bivariate analyses, the prognostic factors significantly associated with survival after reirradiation were age, tumour and treatment volume at recurrence, recursive partitioning analyses classification, Karnofsky performance score, histology, and margin to the planning target volume. Only the last four showed significant association in the multivariate analyses.
CONCLUSION:
Stereotactic radiosurgery is a safe and may be an effective treatment option for selected patients diagnosed with recurrent high-grade glioma. The identified prognostic factors could help individualise the treatment.
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BioMed Research International.
 
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