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Breast cancer subtype approximations and loco-regional recurrence after immediate breast reconstruction.
Kneubil, M C; Brollo, J; Botteri, E; Curigliano, G; Rotmensz, N; Goldhirsch, A; Lohsiriwat, V; Manconi, A; Martella, S; Santillo, B; Petit, J Y; Rietjens, M.
Afiliación
  • Kneubil MC; Division of Plastic Reconstruction Surgery, European Institute of Oncology, Via Ripamonti 435, 20141 Milano, Italy. mcassilha@ig.com.br
Eur J Surg Oncol ; 39(3): 260-5, 2013 Mar.
Article en En | MEDLINE | ID: mdl-23313014
BACKGROUND: A small but significant proportion of patients with breast cancer (BC) will develop loco-regional recurrence (LRR) after immediate breast reconstruction (IBR). The LRR also varies according to breast cancer subtypes and clinicopathological features. METHODS: We studied 1742 consecutive BC patients with IBR between 1997 and 2006. According to St Gallen conference consensus 2011, its BC approximations were applied to classify BC into five subtypes: estrogen receptor (ER) and/or progesterone receptor (PgR) positive, HER2 negative, and low Ki67 (<14%) [luminal A]; ER and/or PgR positive, HER2 negative and high Ki67(≥ 14%) [luminal B/HER2 negative]; ER and/or PgR positive, any Ki67 and HER2 positive [luminal B/HER2 positive]; ER negative, PgR negative and HER2 positive [HER2 positive/nonluminal]; and ER negative, PgR negative and HER2 negative [triple negative]. Cumulative incidences of LRR were compared across different subgroups by means of the Gray test. Multivariable Cox regression models were applied. RESULTS: Median follow up time was 74 months (range 3-165). The cumulative incidence of LRR was 5.5% (121 events). The 5-year cumulative incidence of LRR was 2.5% for luminal A; 5.0% for luminal B/HER2 negative; 9.8% for luminal B/HER2 positive; 3.8% for HER2 non luminal; and 10.9% for triple negative. On multivariable analysis, tumor size (pT) >2 cm, body mass index (BMI) ≥ 25, triple negative and luminal B/HER2 positive subtypes were associated with increased risk of LRR. CONCLUSION: Luminal B/HER2 positive, triple negative subtypes and BMI ≥ 25 are independent prognostic factors for risk of LRR after IBR.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias de la Mama / Biomarcadores de Tumor / Mamoplastia / Recurrencia Local de Neoplasia / Obesidad Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Middle aged País/Región como asunto: Europa Idioma: En Revista: Eur J Surg Oncol Asunto de la revista: NEOPLASIAS Año: 2013 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias de la Mama / Biomarcadores de Tumor / Mamoplastia / Recurrencia Local de Neoplasia / Obesidad Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Middle aged País/Región como asunto: Europa Idioma: En Revista: Eur J Surg Oncol Asunto de la revista: NEOPLASIAS Año: 2013 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido