Prognostic value of decrease on blood lymphocytes in breast cancer patients undergoing primary chemotherapy
2009
e11537 Background: There is evidence about chemotherapy creating a better tumor control by inmune system. Neoadjuvant treatment is an excellent situation to study tumor behaviour. The aim of this study is to determine whether decreases on blood lymphocytes (BL) absolute number have a prognostic significance on women with breast cancer receiving primary chemotherapy (PC). Methods: A retrospective analysis was performed of 105 breast cancer patients who underwent PC. Doxorubicin (60mg/m2q3w) - Cyclophosphamide (600mg/m2q3w) x4c followed docetaxel (100 mg/m2q3w) x4c was PC regimen in 73,4%. We collected data on BL before the first cycle of PC (basal BL), just before second doxorubicin- cyclophosphamide (AC) cycle (BLa), and three weeks from the end of PC (BLb). The median decrease (MD) in blood lymphocytes has been calculated: MDa = BLa - basal BL; MDb = BLb - basal BL. Results: Of 105 patients with breast cancer 16,2% were clinical stage IIA, 19% IIB, 30,5% IIIA, 14,3% IIIB, 15,2% IIIC. The mean age was 50 ...
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