BACKGROUND: Numerous recent studies conducted in the USA reported a considerable rise in the rates of contralateral prophylactic mastectomy (CPM) in early-stage breast cancer (BC). However, this aggressive surgical approach only showed an evidence-based improvement in prognosis for a small subgroup of high-risk BC patients. We present the first European study reporting CPM rates in an unselected cohort of patients with BC. PATIENTS & METHODS: The data of 881 patients (≤ 80 years) who underwent surgery for stage I-III BC from 1995 to 2009 at the University of Basel Breast Center was analyzed. RESULTS: CPM was performed in 23 of 881 patients (2.6%). Of the entire patient population, 37.5% underwent ipsilateral mastectomy and of those, only 7.0% chose to undergo CPM. Importantly, there was no trend over time in the rate of CPM. Women who chose CPM were significantly younger (54 vs. 60 years, p < 0.001), had more often a positive family history (39.1% vs. 24.4%, p = 0.032) and tumors of lobular histology (30.5% vs. 13.9%, p = 0.035). CONCLUSIONS: Our analysis of CPM rates in BC patients, conducted at a European University breast center, does not show the considerably rising CPM rates observed in the USA. We hypothesize that different medico-social and cultural factors, which are highlighted by a different public perception of BC and a different attitude toward plastic surgery, determine the varying CPM rates between the USA and Europe.
BACKGROUND: Numerous recent studies conducted in the USA reported a considerable rise in the rates of contralateral prophylactic mastectomy (CPM) in early-stage breast cancer (BC). However, this aggressive surgical approach only showed an evidence-based improvement in prognosis for a small subgroup of high-risk BC patients. We present the first European study reporting CPM rates in an unselected cohort of patients with BC. PATIENTS & METHODS: The data of 881 patients (≤ 80 years) who underwent surgery for stage I-III BC from 1995 to 2009 at the University of Basel Breast Center was analyzed. RESULTS: CPM was performed in 23 of 881 patients (2.6%). Of the entire patient population, 37.5% underwent ipsilateral mastectomy and of those, only 7.0% chose to undergo CPM. Importantly, there was no trend over time in the rate of CPM. Women who chose CPM were significantly younger (54 vs. 60 years, p < 0.001), had more often a positive family history (39.1% vs. 24.4%, p = 0.032) and tumors of lobular histology (30.5% vs. 13.9%, p = 0.035). CONCLUSIONS: Our analysis of CPM rates in BC patients, conducted at a European University breast center, does not show the considerably rising CPM rates observed in the USA. We hypothesize that different medico-social and cultural factors, which are highlighted by a different public perception of BC and a different attitude toward plastic surgery, determine the varying CPM rates between the USA and Europe.
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