Details

Autor(en) / Beteiligte

• Yu, Tian‐Jian
• Liu, Ying‐Ying
• Hu, Xin
• Di, Gen‐Hong

Titel

No survival improvement of contralateral prophylactic mastectomy among women with invasive lobular carcinoma

Ist Teil von

• Journal of surgical oncology, 2018-11, Vol.118 (6), p.928-935

Ort / Verlag

United States: Wiley Subscription Services, Inc

Erscheinungsjahr

2018

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• Background and Objective The prognosis of contralateral prophylactic mastectomy (CPM) in women with breast cancer has been widely reported. Here, we evaluated the survival outcome among patients with invasive lobular carcinoma (ILC) to determine the potential benefit of CPM. Methods We used the Surveillance, Epidemiology, and End Results database to identify patients with ILC diagnosed between 1998 and 2010. Survival differences were compared between unilateral mastectomy and CPM. Propensity score matching and risk‐stratified subgroup analyses were conducted to reduce selection bias. Results Among 10 226 patients with ILC, 21.8% women underwent CPM, and the rate of CPM nearly tripled over a 13‐year period. Kaplan‐Meier curves and hazard ratio (HR) of non‐breast cancer‐specific survival (non‐BCSS) in multivariate analysis reflected a pre‐existing selection bias in the present cohort. A Cox proportional hazard model confirmed that patients who received CPM had significantly better BCSS and overall survival (OS) in the prematching population (BCSS: HR = 0.90; OS: HR = 0.93). However, the survival improvement could not be achieved in the postmatching cohort. None of the defined subgroups had OS benefits when CPM was performed. Conclusions CPM offers no survival advantage to patients with ILC. The role of CPM among ILC women should be further investigated by incorporating more objective factors.