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Clinical features and survival of pregnancy-associated breast cancer: a retrospective study of 203 cases in China

Han, Bo-Yue ; Li, Xiao-Guang ; Zhao, Hai-Yun ; Hu, Xin ; Ling, Hong

BMC cancer, 2020-03, Vol.20 (1), p.244-244, Article 244 [Periódico revisado por pares]

England: BioMed Central Ltd

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Título:
Clinical features and survival of pregnancy-associated breast cancer: a retrospective study of 203 cases in China
Autor: Han, Bo-Yue ; Li, Xiao-Guang ; Zhao, Hai-Yun ; Hu, Xin ; Ling, Hong
Assuntos: Abortion ; Adult ; Breast cancer ; Breast Neoplasms - epidemiology ; Breast Neoplasms - metabolism ; Breast Neoplasms - mortality ; Breast Neoplasms - pathology ; Breastfeeding & lactation ; Cancer therapies ; Case-Control Studies ; Chemotherapy ; Diagnosis ; Epidermal growth factor ; ErbB-2 protein ; Female ; Fetuses ; First-pregnancy ; Follow-Up Studies ; Humans ; Lactation ; Mastectomy - mortality ; Medical prognosis ; Middle Aged ; Non-first-pregnancy ; Patient outcomes ; Patients ; Population ; Pregnancy ; Pregnancy complications ; Pregnancy Complications, Neoplastic - epidemiology ; Pregnancy Complications, Neoplastic - metabolism ; Pregnancy Complications, Neoplastic - mortality ; Pregnancy Complications, Neoplastic - pathology ; Pregnancy, Complications of ; Pregnancy-associated breast cancer ; Prognosis ; Receptor, ErbB-2 - metabolism ; Receptors, Estrogen - metabolism ; Receptors, Progesterone - metabolism ; Retrospective Studies ; Risk factors ; Studies ; Surgery ; Survival ; Survival analysis ; Survival Rate ; Tumors ; Womens health ; Young Adult
É parte de: BMC cancer, 2020-03, Vol.20 (1), p.244-244, Article 244
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: Pregnancy-associated breast cancer (PABC) is an aggressive disease, and since Chinese authority began to encourage childbearing in 2015, the incidence of PABC has increased. This study investigated the characteristics and survival of PABC patients. Patients with PABC who underwent surgery at Fudan University, Shanghai Cancer Center between 2005 and 2018 were enrolled. Data concerning the tumor characteristics, maternal state (whether first or non-first pregnancy) and survival outcome were recorded. Pearson Chi-square tests were used to compare the characteristics of the tumors, and Kaplan-Meier methods were used to perform the survival analysis. Overall, 203 PABC patients were recruited. Since 2015, 65.5% of non-first pregnant women were diagnosed with breast cancer, it's 5.7 fold of the incidence of PABC in non-first pregnant women. No significant differences in tumor characteristics were observed between the patients who were in their first pregnancy and those in non-first pregnancy. Among the entire PABC population, luminal B breast cancer accounted for the largest proportion (38.4%), followed by triple-negative breast cancer (TNBC, 30.0%). The distribution of the molecular subtypes of PABC and non-PABC differed (P < 0.001) as follows: in the PABC patients, Luminal B 38.4%, Triple negative breast cancer (TNBC) 30.1%, Human Epidermal Growth Factor Receptor 2 (HER-2) overexpression 15.8%, and Luminal A 10.8%; in the non-PABC patients, Luminal A 50.9%, Luminal B 20.1%, TNBC 17.4%, and HER-2 overexpression 8.0%. The 3-year disease free survival (DFS) of all PABC patients was 80.3%. The 3-year DFS of the patients in the first-pregnancy group was 78.4%, and that of the patients in the non-first-pregnancy group was 83.7% (P = 0.325). Our study proved that the proportion of women who developed PABC during the second or third pregnancy was extremely high relative to the newborn populations. The patients in the PABC population tended to present more luminal B and TNBC breast cancer than the non-PABC patients.
Editor: England: BioMed Central Ltd
Idioma: Inglês

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Clinical features and survival of pregnancy-associated breast cancer: a retrospective study of 203 cases in China

Han, Bo-Yue ; Li, Xiao-Guang ; Zhao, Hai-Yun ; Hu, Xin ; Ling, Hong

England: BioMed Central Ltd

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