Int. J. Mol. Sci. 2012, 13(12), 16489-16499; doi:10.3390/ijms131216489
Article

An Institutional Retrospective Analysis of 93 Patients with Brain Metastases from Breast Cancer: Treatment Outcomes, Diagnosis-Specific Prognostic Factors

1,* email, 1email, 1email, 2email, 3email and 1email
Received: 1 November 2012; in revised form: 29 November 2012 / Accepted: 3 December 2012 / Published: 5 December 2012
(This article belongs to the Special Issue Brain Metastasis)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: To evaluate the prognostic factors and indexes of a series of 93 patients with breast cancer and brain metastases (BM) in a single institution. Treatment outcomes were evaluated according to the major prognostic indexes (RPA, BSBM, GPA scores) and breast cancer subtypes. Independent prognostic factors for overall survival (OS) were identified. The median OS values according to GPA 0–1, 1.5–2, 2.5–3 and 3.5–4, were 4.5, 9.5, 14.2 and 19.1 months, respectively (p < 0.0001) and according to genetic subtypes, they were 5, 14.2, 16.5 and 17.1 months for basal-like, luminal A and B and HER, respectively (p = 0.04). Using multivariate analysis, we established a new grading system using the six factors that were identified as indicators of longer survival: age under 60 (p = 0.001), high KPS (p = 0.007), primary tumor control (p = 0.05), low number of extracranial metastases and BM (p = 0.01 and 0.0002, respectively) and triple negative subtype (p = 0.002). Three groups with significantly different median survival times were identified: 4.1, 9.5 and 26.3 months, respectively (p < 0.0001). Our new grading system shows that prognostic indexes could be improved by using more levels of classification and confirms the strength of biological prognostic factors.
Keywords: brain metastases; breast cancer; triple negative subtype; prognostic factors
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MDPI and ACS Style

Antoni, D.; Clavier, J.-B.; Pop, M.; Benoît, C.; Lefebvre, F.; Noël, G. An Institutional Retrospective Analysis of 93 Patients with Brain Metastases from Breast Cancer: Treatment Outcomes, Diagnosis-Specific Prognostic Factors. Int. J. Mol. Sci. 2012, 13, 16489-16499.

AMA Style

Antoni D, Clavier J-B, Pop M, Benoît C, Lefebvre F, Noël G. An Institutional Retrospective Analysis of 93 Patients with Brain Metastases from Breast Cancer: Treatment Outcomes, Diagnosis-Specific Prognostic Factors. International Journal of Molecular Sciences. 2012; 13(12):16489-16499.

Chicago/Turabian Style

Antoni, Delphine; Clavier, Jean-Baptiste; Pop, Marius; Benoît, Céline; Lefebvre, François; Noël, Georges. 2012. "An Institutional Retrospective Analysis of 93 Patients with Brain Metastases from Breast Cancer: Treatment Outcomes, Diagnosis-Specific Prognostic Factors." Int. J. Mol. Sci. 13, no. 12: 16489-16499.

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