Ésta es la principal conclusión de un estudio realizado en el Memorial Sloan-Kettering Cancer Center de Nueva York, en el que evaluaron la influencia de los cambios en el tamaño de los tumores de mama –un potente marcador pronóstico- entre 1975 y 1999 según los registros de vigilancia y detección del cáncer norteamericanos.
Observaron que cuando se comparan las tasas de supervivencia a 5 años en mujeres diagnosticadas a finales de la década de 1970 y a finales de la de 1990, del 30% al 60% del incremento de la supervivencia podría explicarse por las diferencias en el tamaño del tumor. Los autores de este trabajo, publicado en “Cancer”, consideran que estos cambios en el perfil del tamaño pueden contribuir al conocimiento de qué avances terapéuticos han tenido realmente un mayor impacto.
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