Poor prognostic factors of post-CNS recurrence survival in breast cancer patients.

2097 Background: Survival after the onset of metastases in the central nervous system is very short. However, some variables could indicate subsets of worse prognosis. Our aim was to determine the value of clinicopathological characteristics and prognostic scores in the post-SNC recurrence survival. Methods: We evaluated a retrospective cohort of 2597 breast cancer patients treated at the Instituto Nacional de Enfermedades Neoplasicas (Lima-Peru) between 2000-2005. Clinicopathological data was retrieved, RPA and GPA brain metastases prognostic scores were constructed and phenotypes were categorized according to the IHC expression in [HR+,HER2-], [Any HR, HER2+] and Triple Negative. Survival was calculated according to the Kaplan Meier methodology and cases were stratified by variables evaluated. The log-rank or Breslow tests were used when appropriate and multivariate analysis was done by the cox regression. A P<0.05 was considered statistically significant. Results: One hundred and fifty seven cases deve...