2014, Número 11-12
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Medicina & Laboratorio 2014; 20 (11-12)
Efectividad de la mamografía como prueba de tamizaje para reducir la mortalidad por cáncer de mama: revisión sistemática
Bonilla-Sepúlveda ÓA
Idioma: Español
Referencias bibliográficas: 63
Paginas: 555-574
Archivo PDF: 339.30 Kb.
RESUMEN
Introducción: La mamografía es un examen diagnóstico ampliamente utilizado para la detección precoz del
cáncer de mama en su estadio subclínico, seguro y aceptado por la mayoría de las pacientes, que permite la
instauración oportuna del tratamiento médico o quirúrgico. Diferentes estudios han confirmado la efectividad
para prevenir la muerte por cáncer de mama; sin embargo, la magnitud actual es menor a la previamente
registrada.
Objetivo: Describir la principal información disponible sobre la reducción de la mortalidad por
cáncer de mama debida al uso de la mamografía como prueba de tamizaje.
Materiales y métodos: Se realizó
una búsqueda sistemática de publicaciones en inglés en las bases de datos Medline-PubMed, Cochrane
y SciELO, utilizando los términos: “breast cancer screening”, “mammographic screening”, “assessing the
impact of screening mammography”, “assessment of the effectiveness of mammography screening”, “effect
of screening mammography on breast-cancer”, “breast cancer screening update“, entre otros. Se seleccionaron
los artículos originales, ensayos clínicos, revisiones, revisiones sistemáticas y metanálisis escritos en
inglés, publicados entre 1986 y 2014, que aplicaron la mamografía como método de tamizaje.
Resultados:
Se seleccionaron para la redacción de este artículo 63 publicaciones que fueron transcendentes para determinar
la efectividad de la mamografía de tamizaje.
Conclusiones: La mamografía continúa siendo el pilar
del tamizaje del cáncer mamario, a pesar de la amplia variación entre los estudios respecto a la reducción del
riesgo de mortalidad, que va desde inexistente hasta estadísticamente significativa, y que los resultados falsos
positivos y el sobrediagnóstico han limitado establecer su beneficio neto.
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