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Contralateral prophylactic mastectomy rate stable at major Canadian breast cancer center

World Journal of Clinical Oncology 2016年第3期7卷 302-307页

作者： Amanda Roberts lakhbir sandhu Tulin D Cil Stefan O P Hofer Toni Zhong Department of Surgery University of Toronto Division of General Surgery University Health Network and Women’s College Hospital Division of Plastic and Reconstructive Surgery University Health Network Toronto General Hospital

AIM: To examine trends of contralateral prophylactic mastectomy(CPM) rates at a Canadian academic breast cancer ***: A single-institution retrospective cohort study was completed. Women of any age who underwent at least a unilateral mastectomy(UM) for primary unilateral breast carcinoma between January 1, 2004 and December 31, 2010 were included. Patients who underwent CPM on the same day as UM were isolated to create two distinct cohorts. Patient and procedure characteristics were compared across groups using R software(version 3.1.0). The percentage of CPMs per year was determined. The Cochrane-Armitage test was used to assess the trend of CPMs over time. A P value of < 0.05 was considered ***: A total of 811 women met the inclusions/exclusion criteria; 759(93.6%) underwent UM alone and 52(6.4%) underwent UM with immediate CPM. The absolute number of procedures(UM and UM + CPM) increased over time, from 83 in 2004 to 147 in 2010 reflecting an increase in mastectomy volume. Annual CPM rates did not increase over time(P = 0.7) and varied between 2.6% to 10.7%. Family history of breast cancer [OR 3.6(1.8-7.3)] and immediate reconstruction [10.0(5.2-19.3)] were both significantly associated with CPM. Women who underwent CPM were younger(median age CPM 49 years vs UM 52 years, P < 0.0001) but age less than 50 years was not statistically associated with increased rates of CPM. CONCLUSION: CPM rates from 2004 to 2010 at a high-volume Canadian breast cancer center did not increase over time, in contrast to trends observed in the United States.

关键词： Breast Oncology Prophylactic Mastectomy Surgery

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