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Effect of primary tumor resection on overall survival in patients with stage IV breast cancer

 Sung Mook Lim  ;  Jee Ye Kim  ;  Hyung Seok Park  ;  Seho Park  ;  Gun Min Kim  ;  Joohyuk Sohn  ;  Seung Il Kim 
 BREAST JOURNAL, Vol.25(5) : 908-915, 2019 
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breast neoplasm ; neoplasm metastasis ; prognosis ; surgery ; survival
We aimed to evaluate the effect of primary tumor resection on overall survival in stage IV breast cancer patients. In total, 284 breast cancer patients presenting with breast cancer at stage IV at initial diagnosis, between 2001 and 2014, were enrolled in the study. Patients were divided into two groups based on surgical resection of the primary tumor. Overall survival (OS) between the two groups was analyzed. Patients in the surgery group (n = 92) had smaller tumors than those in the no-surgery group (n = 192, T0-1:17.7% vs 34.8%, P < 0.001). The surgery group more often had negative nodal status (5.7% vs 33.7%, P < 0.001). Multiple metastatic organ sites were more common in the no-surgery group than in the surgery group (55.7% vs 15.2%, P < 0.001). The surgery group showed a better OS than the no-surgery group (P = 0.01). Multivariate analysis showed that surgical resection of primary tumors tended to be associated with improved OS (HR = 0.67, P = 0.055). T stage, ER, HER2 and metastatic organ sites were independent prognostic factors for OS in multivariate analysis. Surgical resection of the primary tumor may be a treatment option for patients with stage IV disease and may not have a negative effect on overall survival.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Gun Min(김건민) ORCID logo https://orcid.org/0000-0001-9167-8682
Kim, Seung Il(김승일)
Kim, Jee Ye(김지예) ORCID logo https://orcid.org/0000-0003-3936-4410
Park, Se Ho(박세호) ORCID logo https://orcid.org/0000-0001-8089-2755
Park, Hyung Seok(박형석) ORCID logo https://orcid.org/0000-0001-5322-6036
Sohn, Joo Hyuk(손주혁) ORCID logo https://orcid.org/0000-0002-2303-2764
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