• David Martínez-Ramos, Carlos Fortea-Sanchis, Javier Escrig-Sos, Miguel Prats-de Puig, Raquel Queralt-Martín, and José Luís Salvador-Sanchis.
• Servicio de Cirugía General y Digestiva, Hospital General de Castellón, Castellón, Comunidad Valenciana, Spain. davidmartinez@comcas.es.
• Cir Cir. 2014 May 1; 82 (3): 252-61.

BackgroundConservative surgery can be regarded as the standard treatment for most early stage breast tumors. However, a minority of patients treated with conservative surgery will present local or locoregional recurrence. Therefore, it is of interest to evaluate the possible factors associated with this recurrence.MethodsA population-based retrospective study using data from the Tumor Registry of Castellón (Valencia, Spain) of patients operated on for primary nonmetastatic breast cancer between January 2000 and December 2008 was designed. Kaplan-Meier curves and log-rank test to estimate 5-year local recurrence were used. Two groups of patients were defined, one with conservative surgery and another with nonconservative surgery. Cox multivariate analysis was conducted.ResultsThe total number of patients was 410. Average local recurrence was 6.8%. In univariate analysis, only tumor size and lymph node involvement showed significant differences. On multivariate analysis, independent prognostic factors were conservative surgery (hazard ratio [HR] 4.62; 95% confidence interval [CI]: 1.12-16.82), number of positive lymph nodes (HR 1.07; 95% CI: 1.01-1.17) and tumor size (in mm) (HR 1.02; 95% CI: 1.01-1.06).ConclusionsLocal recurrence after breast-conserving surgery is higher in tumors >2 cm. Although tumor size should not be a contraindication for conservative surgery, it should be a risk factor to be considered.

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