Prognostic factors in triple-negative breast cancer: a retrospective cohort
Rev. Assoc. Med. Bras. (1992)
;
67(7): 950-957, July 2021. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-1346933
ABSTRACT
SUMMARY OBJECTIVE:
Triple-negative breast cancer (TNBC) is characterized by lack of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 (HER2) expression and accounts for 15-20% of all breast cancers. This study aims to analyze prognostic factors related to a reduction in overall survival (OS), disease-free survival (DFS), and risk of mortality and recurrence in TNBC.METHODS:
This is a retrospective observational cohort study. Medical records of 532 patients with breast cancer diagnosed from 2007 to 2020 were analyzed. Of these patients, 93 (17%) were women with TNBC. Ten medical records were excluded, and the final sample was composed of 83 women with TNBC. OS and DFS were estimated by the Kaplan-Meier model. Univariate analysis (log-rank test) and multivariate analysis (Cox regression) were used to examine prognostic factors related to a statistically significant reduction (p<0.05) in OS and DFS and increased risk of mortality and tumor recurrence.RESULTS:
Smoking, advanced clinical stage, larger tumor size, angiolymphatic invasion, positive sentinel lymph node, axillary node involvement, higher cancer burden, surgical treatment with mastectomy, and recurrence were related to a significant decrease in OS and/or DFS and increased risk of mortality and/or recurrence in TNBC. The 10-year OS and DFS was around 61 and 65%, respectively.CONCLUSIONS:
Advanced clinical stage, positive sentinel lymph node, axillary node involvement, surgical treatment with mastectomy, and higher residual cancer burden were related to a significant reduction in OS and DFS and increased risk of mortality and recurrence in TNBC.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Neoplasias de la Mama Triple Negativas
Tipo de estudio:
Estudio de etiología
/
Estudio de incidencia
/
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Femenino
/
Humanos
Idioma:
Inglés
Revista:
Rev. Assoc. Med. Bras. (1992)
Año:
2021
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Hospital São Marcos/BR
/
Oncocenter, Tocoginecologia/BR
/
Universidade Estadual do Piauí/BR
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