Abstract

Objectives: This study aimed to evaluate the impact of locoregional resection and radiotherapy on the prognosis of Chinese women with stage IV breast cancer. Methods: The retrospective study included Chinese patients with de novo stage IV breast cancer in National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences, between January 1, 2001, and December 31, 2016. The patients were classified into surgery and nonsurgery groups. Overall survival (OS) and distant progression-free survival (DPFS) were evaluated at the last follow-up. Results: Of the 157 patients, 66 (42.0%) underwent surgery and 52 (33.1%) received locoregional radiotherapy. The follow-up time ranged from 3 to 180 months. The median patient follow-up was 54.5 months. The patients in the surgery group had longer 5-year OS and 5-year DPFS compared with the patients in the nonsurgery group. DPFS was also significantly longer in patients who received radiotherapy. Two factors proved to be associated with survival: response to systemic therapy and surgical treatment. Multivariate analysis also showed that the progestogen receptor status significantly influenced the DPFS. Conclusion: Locoregional surgery and radiotherapy of primary tumor might be beneficial for Chinese patients with stage IV breast cancer. It proposed that surgical resection for selected stage IV breast cancer patients.

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