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Breast Cancer Subtype and Distant Recurrence after Ipsilateral Breast Tumor Recurrence.
MedLine Citation:
PMID:  23292516     Owner:  NLM     Status:  Publisher    
BACKGROUND: There is little information about the impact of breast cancer subtype on prognosis after ipsilateral breast tumor recurrence (IBTR). METHODS: One hundred eighty-five patients were classified according to breast cancer subtype, as approximated by estrogen receptor, human epidermal growth factor receptor 2 (HER2), and Ki-67, of IBTR, and we evaluated whether breast cancer subtype was associated with distant recurrence after IBTR. RESULTS: There was a significant difference in distant disease-free survival (DDFS) after IBTR according to breast cancer subtype defined by a cutoff of the Ki-67 index of 20 % (p = 0.0074, log-rank test). The 5-year DDFS rates for patients with luminal A, luminal B, triple-negative, and HER2 types were 86.3, 57.1, 56.6, and 65.9 %, respectively. In addition, breast cancer subtype was significantly associated with distant recurrence after IBTR on adjustment for various clinicopathologic factors (p = 0.0027, Cox proportional hazards model). CONCLUSIONS: Our study suggests that breast cancer subtype based on immunohistochemical staining predicts the outcomes of patients with IBTR. Further analyses are needed (UMIN-CTR number UMIN000008136).
Makoto Ishitobi; Yasuhiro Okumura; Nobuyuki Arima; Atsushi Yoshida; Katsuhiko Nakatsukasa; Takuji Iwase; Tadahiko Shien; Norikazu Masuda; Satoru Tanaka; Masahiko Tanabe; Takehiro Tanaka; Yoshifumi Komoike; Tetsuya Taguchi; Reiki Nishimura; Hideo Inaji
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-6
Journal Detail:
Title:  Annals of surgical oncology     Volume:  -     ISSN:  1534-4681     ISO Abbreviation:  Ann. Surg. Oncol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9420840     Medline TA:  Ann Surg Oncol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Breast and Endocrine Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan,
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