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Effect of Whole Brain Radiotherapy Dose on Breast Cancer Brain Metastases Survival

This paper sets to study the effect of whole brain radiotherapy (WBRT) dose on the survival after breast cancer brain metastases (BM) in order to reduce the mortality rates of breast cancer. We collect relevant information on the patient, operation, and post-operation systematic treatment, diagnosis and treatment of BM from the medical record inquiry system. The results show that under implications of multiple factors, local supplement dose, to some extent, has good prognosis tendency, but does not extend the intracranial progression free survival (PFS), while the WBRT dose can. It is the conclusion of this paper that WBRT can improve the overall survival (OS) and PFS, but WBRT cannot further extend the OS after exceeding a certain amount.