Outcomes and risk of subsequent breast events in breast-conserving surgery patients with BRCA1 and BRCA2 mutation.,Cancer Medicine

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Outcomes and risk of subsequent breast events in breast-conserving surgery patients with BRCA1 and BRCA2 mutation.
Cancer Medicine ( IF 2.9 ) Pub Date : 2020-01-07 , DOI: 10.1002/cam4.2836
Fugui Ye ₁ , Liang Huang ₁ , Guantian Lang _{1,

2} , Xin Hu ₁ , Genhong Di ₁ , Zhimin Shao _{1,

3} , Ayong Cao ₁

Affiliation

PURPOSE Previous studies provide inconsistent interpretations of the effect of inherited genetic factors on the survival and prognosis of patients with breast cancer. The aim of this study was to examine the effect of germline BRCA1 and BRCA2 mutation on survival and subsequent breast events in Chinese women who underwent breast-conserving surgery. METHODS A retrospective review of the clinical and pathological records was performed in patients diagnosed with primary invasive breast cancer between 2005 and 2018 in the cancer registry database. Clinicopathological data and data regarding treatment and outcomes, including date and site of disease progression, were collected. The survival outcomes and independent risk factors were conducted using SPSS. RESULTS Overall, a total of 501 patients who underwent breast-conserving surgery were identified and subjected to analyses, of which 63 cases with BRCA1 or BRCA2 mutation. The median age at diagnosis was 41 (range, 24-74) for carriers and 37 (range, 17-84) for noncarriers. After a median follow-up time of 61 months (range, 8-161) and 70 months (range, 0-153), respectively, in carriers and noncarriers, the overall survival (P = .173) and disease-free survival (P = .424) were not significantly different. Analogously, there was no significant difference between the two groups about the outcomes of ipsilateral breast tumor recurrence (P = .348), yet the contralateral breast cancer (CBC) was overt worse than noncarriers (P < .001). When adjusted to confounding factors, BRCA mutation was the only independent risk factors to CBC (HR = 7.89, P = .01). CONCLUSION In this study, BRCA mutation carriers have higher risk of CBC. And, BRCA mutation is the only independent risk factor to CBC. Therefore, intensive surveillance and follow-up as well as more effective individual prevention are urgent. Decisions on alternatively effective prevention, especially the prevention of CBC, are urgent and should take into account patient prognosis and preferences.

更新日期：2020-01-08

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