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Cáncer de mama en mujeres con hipotiroidismo que usan suplementos de tiroides
JAMA
|February 3, 1984
Resumen
La suplementación de la tiroides para el hipotiroidismo no aumenta el riesgo de cáncer de mama. Este estudio no encontró un exceso de casos de cáncer de mama en mujeres tratadas con suplementos de tiroides en comparación con las tasas esperadas.
Área de la Ciencia:
- Endocrinología Endocrinología.
- Oncología Oncología.
- Epidemiología La epidemiología.
Sus antecedentes:
- El hipotiroidismo iatrogénico a menudo se trata con la suplementación de la tiroides.
- La asociación potencial entre la terapia de reemplazo de la hormona tiroidea y el riesgo de cáncer de mama requiere investigación.
Objetivo del estudio:
- Para investigar el riesgo de cáncer de mama en mujeres que reciben suplementos de tiroides para el hipotiroidismo iatrogénico.
Principales métodos:
- Se realizó un estudio de cohorte en la Clínica Mayo, Rochester, Minnesota.
- Los casos observados de cáncer de mama en 1.665 mujeres con hipotiroidismo se compararon con los casos esperados utilizando proporciones de incidencia estandarizadas (SIR).
- Se analizaron los factores de riesgo y el manejo del hipertiroidismo / hipotiroidismo.
Principales resultados:
- La tasa de incidencia estandarizada (SIR) para el cáncer de mama en mujeres con hipotiroidismo fue de 0,9 (47 observados frente a 52,9 esperados).
- No se observó un aumento en el riesgo de cáncer de mama en las mujeres eutiroides (SIR = 1,0).
- El riesgo de cáncer de mama no fue influenciado significativamente por el manejo del hipertiroidismo o los factores de hipotiroidismo, a excepción de una historia de biopsia de mama.
Conclusiones:
- La suplementación de la tiroides para el hipotiroidismo iatrogénico no parece aumentar el riesgo de cáncer de mama.
- Los hallazgos sugieren que la terapia de reemplazo de la hormona tiroidea es segura con respecto al desarrollo del cáncer de mama.
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