Is extracapsular tumour spread a prognostic factor in patients with early breast cancer?

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Dobi, Erion | Bazan, Fernando | Dufresne, Armelle | Demarchi, Martin | Villanueva, Cristian | Chaigneau, Loic | Montcuquet, Philipe | Ivanaj, Arben | Sautière, Jean Loup | Maisonnette-Escot, Yolande | Cals, Laurent | Algros, Marie Paule | Woronoff, Anne-Sophie | Pivot, Xavier

Edité par CCSD ; Springer Verlag -

International audience. BACKGROUND: This study searched for extra capsular tumour spread (ECS) as a prognostic factor for recurrence in terms of Disease Free Survival (DFS) and Overall Survival (OS). PATIENTS AND METHODS: For this study, from a retrospective database of the Doubs cancer registry, 823 eligible women with node positive breast cancer treated from February 1984 to November 2000 were identified. The following factors were evaluated: ECS, numbers of involved nodes, histological tumour grade, tumour size, status of estrogen and progesterone receptors, and age of patient. A Cox proportional hazards method was used to search for significant factors related to OS and DFS length. RESULTS: In the multivariate analysis, factors related to DFS length were found to be: tumour grade (aHR 0.76, 95 % CI 0.61-0.96, p = 0.02), ECS status (aHR 0.7, 95 % CI 0.49-0.96, p = 0.03), progesterone (PgR) status (aHR 0.63, 95 % CI 0.44-0.85 p = 0.008), number of nodes involved (aHR 0.75, 95 % CI 0.56-1, p = 0.05). The multivariate analysis for OS found as significant factors: tumour grade (aHR 0.76, 95 % CI 0.61-0.95; p = 0.02) and PgR status (aHR 0.8, 95 % CI 0.56-0.99, p = 0.02). CONCLUSIONS: This study might suggest taking into account ECS status in the adjuvant decision-making process.

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