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Volume 25, Number 3, 2020

Long-term survival results after treatment for oligometastatic brain disease

Carsten Nieder, Mandy Hintz, Ilinca Popp, Angelika Bilger, Anca L. Grosu

Summary:

Aim The aim of this study was to characterize the survival results of patients with up to four brain metastases after intense local therapy (primary surgery or stereotactic radiotherapy) if extracranial metastases were absent or limited to one site, e.g. the lungs. Background Oligometastatic disease has repeatedly been reported to convey a favorable prognosis. Material and methods This retrospective study included 198 German and Norwegian patients treated with individualized approaches, always including brain radiotherapy. Information about age, extracranial spread, number of brain metastases, performance status and other variables was collected. Uni- and multivariate tests were performed. Results Median survival was 16.5 months (single brain metastasis) and 9.8 months (2–4, comparable survival for 2, 3 and 4), respectively (p = 0.001). After 5 years, 15 and 2% of the patients were still alive. In patients alive after 2 years, added median survival was 23 months and the probability of being alive 5 years after treatment was 26%. In multivariate analysis, extracranial metastases were not significantly associated with survival, while primary tumor control was. Conclusion Long-term survival beyond 5 years is possible in a minority of patients with oligometastatic brain disease, in particular those with a single brain metastasis. The presence of extracranial metastases to one site should not be regarded a barrier towards maximum brain-directed therapy.

Signature: Rep Pract Oncol Radiother, 2020; 25(3) : 307-311


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Indexed in: EMBASE®, the Excerpta Medica database, the Elsevier BIOBASE (Current Awareness in Biological Sciences) and in the Index Copernicus.

http://www.sciencedirect.com/science/journal/15071367/19/2